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Mihir Kumar

Verified Expert in Engineering

Software Engineer and Developer

Bengaluru, Karnataka, India

Toptal member since July 8, 2022

Expertise

System Security Web Development Code Review Back-end Developers Front End Full-stack Integration MERN Stack Dashboard Cloud Engineering Chrome Extension Development

Bio

Mihir is a seasoned full‑stack developer specializing in web and mobile applications, DevOps, and AI‑driven integrations. Known for his ability to solve complex challenges, he consistently delivers scalable, high‑quality solutions that foster innovation and efficiency. Mihir's tech expertise includes TypeScript, React, Node.js, Python (FastAPI), Agentic AI (OpenAI, Claude, Deepseek, Ollama), RAG, Langchain, LangGraph, CrewAI, Ray, Metaflow, Cypress, Jest, Docker, ArgoCD, GitOps, and CI/CD.

Portfolio

AB InBev

React Native, TanStack Router, TanStack Table, Expo, React, Python, FastAPI...

Nu Gui

Jira, TypeScript, TanStack Router, React, Next.js, Turborepo, Fastify, Prisma...

Data Science Institute Limited

JavaScript, React, Next.js, Node.js, SQL, Vercel, Tailwind CSS, Sanity Studio...

Experience

JavaScript - 7 years
Node.js - 7 years
React - 7 years
Next.js - 6 years
Web Development - 6 years
Amazon Web Services (AWS) - 5 years
Python - 5 years
AI Integration - 3 years

Preferred Environment

Front-end, Full-stack, UI Development, AI Agents, Retrieval-augmented Generation (RAG), React, Next.js, Python, DevOps, Agentic AI

The most amazing...

...thing I've developed is a multi-model AI playground project with chat and completion, model parameter tweaking, team and org management, and a responsive UI/UX.

Work Experience

Senior Software Engineer (Agentic AI)

2025 - PRESENT

AB InBev

Refactored AB InBev’s internal Expo and React Native app to align with the latest architecture, significantly improving performance and stability.
Extended the app to support cross-platform deployment, including a web launch using Expo Web.
Designed and implemented a GitHub-based CI/CD pipeline with a branching strategy to streamline app releases and version management.
Planned and integrated GenAI capabilities to enhance the Competitor Intel app for improved functionality.
Developed GenAI templates for agents, servers, tools, and MCPs, facilitating company-wide adoption of AI-based applications.
Collaborated on the CrewAI framework to create and manage teams of AI agents, ensuring streamlined operations.
Contributed to LLM observability by integrating Langfuse-based monitoring and analytics with CrewAI for AI-driven features.

Technologies: React Native, TanStack Router, TanStack Table, Expo, React, Python, FastAPI, Azure DevOps, LangChain, CrewAI, MacOS, Mobile, Shadcn, Artificial Intelligence (AI), Prompt Engineering, LLM Integration, AI Integration, RESTFul APIs, Mobile App Development, gRPC, Role-based Access Control (RBAC), Relational Database Design, Machine Learning Operations (MLOps), Front-end Architecture, Continuous Delivery (CD), Continuous Integration (CI), Vector Databases, Refactoring, Code Auditing, Authorization, Azure, Microsoft Entra, Data Modeling, System Design, Agentic AI, AI Programming, Large Language Model Operations (LLMOps), Solution Architecture, RAG Pipelines, React Hooks

Project Manager

2024 - 2026

Nu Gui

Managed and contributed to the development of the flagship product, CCS Man, overseeing inventory management, prefix, and package management.
Set up the starting point for engineers by setting up monorepos, linters, CI/CD, routing, and multi-tenancy configurations.
Achieved a launch resulting in over $10,000 in MRR with South Africa's largest telecom company, T-Forge, as a key client.
Worked on NuSIP, a comprehensive platform for managing carriers, trunks, vendors, routing, DIDs, and access controls such as blacklists and whitelists, designed to streamline telecom operations, reduce costs, and improve service reliability.

Technologies: Jira, TypeScript, TanStack Router, React, Next.js, Turborepo, Fastify, Prisma, Tailwind UI, Chart.js, Monorepos, App Development, Web App Development, LLM Integration, AI Agents, Cloud Platforms, React Native, Mobile Development, Python, Supabase, MacOS, Shadcn, Artificial Intelligence (AI), Prompt Engineering, AI Integration, Chrome Extensions, RESTFul APIs, Infrastructure as Code (IaC), Expo, Mobile App Development, Radix UI, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Refactoring, Code Auditing, Audits, OAuth, Authorization, Application Architecture, Cloud Architecture, Data Modeling, System Design, Security, Server-side Rendering (SSR), Solution Architecture, React Hooks

Full-stack Developer

2025 - 2025

Data Science Institute Limited

Created a learning certification platform featuring a coding playground and practice exams, designed to be secure and scalable.
Set up a monorepo for a Next.js app integrated with Sanity CMS with TypeGen, using Supabase as the database and Clerk for authentication.
Developed scripts to effortlessly import thousands of Markdown files into Sanity CMS and deliver them seamlessly on a Next.js application.

Technologies: JavaScript, React, Next.js, Node.js, SQL, Vercel, Tailwind CSS, Sanity Studio, GraphQL, Supabase, Clerk, TypeScript, Monorepos, MacOS, PWA or Progressive Web Apps, Shadcn, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, Cloudflare, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Code Auditing, OAuth, Authorization, Application Architecture, Cloud Architecture, Data Modeling, System Design, Server-side Rendering (SSR), Solution Architecture, React Hooks

Full-stack Developer

2024 - 2025

Sometimes LLC

Developed a GitHub marketplace app that helps teams save time and be more productive.
Constructed a scalable back end that simultaneously handles thousands of pull requests and other repository events.
Built a UI with Stripe integration for a subscription management and analytics dashboard.
Created AI integration for GitHub pull-request summaries for organizations.

Technologies: GitHub Marketplace, TypeScript, JavaScript, APIs, Node.js, Ruby, GitHub API, Stripe, Prisma, PostgreSQL, Redis, Clerk, TanStack Router, Recharts, Tailwind UI, Tailwind CSS, Retrieval-augmented Generation (RAG), App Development, Web App Development, LLM Integration, OpenAI, AI Agents, Cloud Platforms, Supabase, MacOS, Shadcn, Email Integration, Artificial Intelligence (AI), Prompt Engineering, AI Integration, RESTFul APIs, Radix UI, Role-based Access Control (RBAC), Relational Database Design, Cloudflare, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Code Auditing, OAuth, Authorization, Application Architecture, Cloud Architecture, Data Modeling, System Design, Security, Server-side Rendering (SSR), AI Programming, Solution Architecture, React Hooks

Computer Scientist

2023 - 2025

Adobe

Developed reusable components based on Adobe's design language.
Contributed to the Adobe Identity team infrastructure for identity provision and authorization.
Launched a platform to calculate availability in nine seconds for services used in infrastructure.
Created features such as multiple contract support and Adobe Firefly and Express integrations for the Adobe Admin Console used by Adobe Business and Teams customers worldwide.
Enhanced code quality, test coverage, and several other aspects of the Global Admin Console used by Adobe business customers.
Worked on Subscription Lifecycle Services (SLS) and added support for free products.
Developed a proof-of-concept (POC) for an AI-powered chat service. This service leverages Chroma DB, Hugging Face embedding models, and OpenAI OSS models, enhanced by retrieval augmented generation (RAG) for documentation-driven responses.

Technologies: React, JavaScript, TypeScript, Node.js, Express.js, Monorepos, Lerna, Next.js, Microservices, Amazon Web Services (AWS), REST APIs, API Integration, Figma, Integration, Axios, Authentication, JSX, Pixel Perfect, ChatGPT, Deployment, Cloud, Animation, Cache, User Experience (UX), Vite, Software Architecture, Kubernetes, Agile, Swagger, OpenAPI, Mobile First, REST, Storybook, Back-end, DOM, Asynchronous I/O, Contentful, Vanilla JS, Web Usability, ECMAScript (ES6), API Development, Reverse Engineering, Redux Toolkit, Application State Management, MERN Stack, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Amazon RDS, Jira, Front-end Design, Front-end Build Tools, Amazon DynamoDB, Web Applications, GitHub, UI Development, i18n, Full-stack Development, Architecture, Database Management Systems (DBMS), UI Design, React Server Components, Software Engineering, Internationalization, Translation, Website Translation, i18next, Svelte, reCAPTCHA, SaaS, HTTPS, tRPC, React Query, Version Control, NPM, Cross-browser Compatibility, Responsive, Tailwind UI, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), PagerDuty, GitHub API, App Development, Web App Development, Cloud Platforms, Hugging Face, ChromaDB, Retrieval-augmented Generation (RAG), OpenAI, AI SDK, MacOS, Shadcn, AI Integration, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Continuous Delivery (CD), Continuous Integration (CI), Vector Databases, Llama 3, Refactoring, Code Auditing, Authorization, Data Modeling, System Design, Agentic AI, AI Programming, Large Language Model Operations (LLMOps), Solution Architecture, RAG Pipelines, React Hooks, Microfrontends

Full-stack Developer

2024 - 2024

Jana Ahmed Albelaihed

Worked on integrating ChatGPT into the HR application for application question generation and answer validation.
Implemented a job listing URL in Bubble.io with a unique Slug implementation.
Did proper structuring of database schemas and entities to enable better job creation and sharing experience.

Technologies: API Integration, JavaScript, HTML, CSS, ChatGPT API, ChatGPT, Bubble, Node.js, HTTPS, Large Language Models (LLMs), AI Chatbots, Version Control, Responsive, Web Content Accessibility Guidelines (WCAG), Database Design, App Development, Web App Development, Cloud Platforms, MacOS, Shadcn, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Code Auditing, Authorization, Data Modeling, System Design, React Hooks

Front-end Engineer

2023 - 2024

Konko AI Inc

Developed an AI playground app enabling clients to try different AI models. Clients can try out chat and completion features with history, model parameters, and settings.
Created a system to invite teams, manage organizations, manage API keys and model providers, and manage billing and access control.
Built a UI library using TailwindCSS geared towards modern AI apps.
Helped the client in a timely MVP launch by efficiently managing reusable code and features.

Technologies: Tailwind CSS, Next.js, Vercel, APIs, React, PostgreSQL, Redis, Auth0, Payment Gateways, Large Language Models (LLMs), LangChain, Artificial Intelligence (AI), Prompt Engineering, WhatsApp API, OpenAI GPT-3 API, OpenAI GPT-4 API, UI Design, DevOps, Startups, React Server Components, Sentry, Software Engineering, ChatGPT API, Go, reCAPTCHA, Dashboards, GitHub Actions, SaaS, HTTPS, Ruby on Rails (RoR), AI Chatbots, React Query, Version Control, NPM, Cross-browser Compatibility, Lambda Functions, Responsive, Tailwind UI, Single-page Applications (SPAs), OpenAI API, Web Content Accessibility Guidelines (WCAG), Database Management, Retrieval-augmented Generation (RAG), App Development, Web App Development, LLM Integration, OpenAI, AI Agents, Cloud Platforms, Python, MacOS, Shadcn, AI Integration, RESTFul APIs, Radix UI, Role-based Access Control (RBAC), Relational Database Design, Cloudflare, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Vector Databases, Code Auditing, OAuth, Authorization, Application Architecture, Cloud Architecture, Data Modeling, System Design, Security, Server-side Rendering (SSR), Solution Architecture, React Hooks

Senior Full-stack Developer

2023 - 2023

MOTI Technologies LLC

Helped the client launch the Electron app MVP for a video recording platform.
Included modern technologies in the tech stack like SvelteKit, Vite, and Electron.
Implemented the auto-update feature for the Electron app, leading to a better user experience.

Technologies: TypeScript, JavaScript, Front-end, Electron, Vite, Node.js, Svelte, API Development, Reverse Engineering, Redux Toolkit, Vue 3, Application State Management, Pinia, MERN Stack, Stripe, Chatbots, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Amazon RDS, Jira, Front-end Design, Front-end Build Tools, Zustand, Web Applications, Google Cloud Platform (GCP), GitHub, UI Development, Full-stack Development, Database Management Systems (DBMS), Google Analytics, UI Design, Startups, Sentry, Software Engineering, reCAPTCHA, GitHub Actions, HTTPS, Version Control, NPM, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), App Development, Web App Development, Cloud Platforms, MacOS, Shadcn, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, WebRTC, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Code Auditing, Authorization, Application Architecture, Data Modeling, System Design, Security, React Hooks

React Full-stack Developer

2023 - 2023

Growthware

Converted and matched the designs from Figma into React and TypeScript UI code and followed the best coding practices using linting and formatting for a business growth app.
Led the development of back-end APIs for four portals — Merchant, Partner, Bookings, and Admin. These APIs were built using advanced technologies such as GraphQL, Fastify, Node.js, and TypeScript. We used a PostgreSQL database to manage the data.
Built AWS infrastructure by using AWS CDK. This allowed us to scale based on traffic. Used AWS services like Cognito, S3, CloudFront, AppSync, Lambda, Certificate Manager, Route 53, and CloudFormation. Used level 1 and 2 constructs.
Engineered a highly modular and maintainable codebase by adopting a Turborepo-based monorepo structure. This innovative approach featured a collection of apps and reusable packages, streamlining code organization, readability, and future maintenance.
Developed a CI/CD pipeline using GitHub Actions and AWS CDK. This pipeline enabled us to deploy changes to AWS automatically without manual intervention. As a result, we significantly improved our development efficiency and reliability.
Built integration with 3rd-party APIs like the Twilio API, Yext API, Stripe API, SendGrid API, etc.

Technologies: React, JavaScript, Amazon Web Services (AWS), TypeScript, Microservices, GraphQL, Monorepos, Sass, Flux, Tailwind CSS, Integration, Axios, SQL, Firebase, Authentication, Cloud Firestore, Google Cloud Storage, Google Cloud, Pixel Perfect, Deployment, Cloud, Cache, Search Engine Optimization (SEO), User Experience (UX), Vite, Chromium, Minimum Viable Product (MVP), Software Architecture, Kubernetes, Figma, Agile, Swagger, OpenAPI, Design, Stripe Payments, Mobile First, REST, MariaDB, AWS Lambda, Storybook, Back-end, Yarn, WebSockets, DOM, Asynchronous I/O, Strapi, Contentful, Vanilla JS, Web Usability, Stripe API, ECMAScript (ES6), API Development, Reverse Engineering, Redux Toolkit, Application State Management, MERN Stack, Stripe, Chatbots, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Amazon RDS, Jira, Google Ads API, Prisma, Front-end Design, PayPal API, Front-end Build Tools, Zustand, FastAPI, Test-driven Development (TDD), Amazon DynamoDB, Web Applications, AWS Cloud Development Kit (CDK), GitHub, Next.js, UI Development, Full-stack Development, Architecture, Database Management Systems (DBMS), Fastify, Amazon S3 (AWS S3), Hygraph (GraphCMS), Google Analytics, Payment Gateways, AWS Amplify, AmplifyJS, UI Design, Startups, Object-relational Mapping (ORM), Sentry, Software Engineering, reCAPTCHA, Dashboards, Highcharts, GitHub Actions, HTTPS, Terraform, React Query, Version Control, NPM, Google Cloud Platform (GCP), Responsive, Tailwind UI, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), Amazon Cognito, App Development, Web App Development, Cloud Platforms, Python, MacOS, PWA or Progressive Web Apps, Shadcn, RESTFul APIs, Infrastructure as Code (IaC), Role-based Access Control (RBAC), Relational Database Design, Infrastructure, Front-end Architecture, Proof of Concept (POC), Continuous Delivery (CD), Continuous Integration (CI), Refactoring, Code Auditing, Authorization, Application Architecture, Cloud Architecture, Data Modeling, System Design, Server-side Rendering (SSR), Solution Architecture, React Hooks

Senior Full-stack Developer

2023 - 2023

Twilio

Worked on the Internal Advisory portal with 6.9 million USD ROI. Led the architecture efforts for the advisory project.
Led the effort of infrastructure development using AWS CDK for advisory projects. Leveraged AWS services like ECS, Cognito, S3, CloudFront, AppSync, Route 53, Lambda, and Cloud Formation. We used level 1 and 2 constructs thoroughly.
Contributed towards lessening the reliance on 3rd-party applications for cost savings.
Collaborated with cross-functional teams, including designers, product managers, and QA engineers, to deliver high-quality products on time and within budget.
Developed a CI/CD pipeline using GitHub Actions, Jenkins, Twilio's Admiral platform, and AWS CDK. This pipeline enabled us to deploy changes to AWS automatically. As a result, we were able to improve our development efficiency significantly.

Technologies: JavaScript, Node.js, React, Next.js, Vue, Nuxt.js, HTML5, CSS3, Redis, APIs, Unit Testing, GitHub, PostgreSQL, NoSQL, MongoDB, Jest, Webpack, API Integration, Code Review, Design Patterns, Front-end Development, Back-end Development, Front-end, Amazon Web Services (AWS), React Router, REST APIs, JSON, Databases, CI/CD Pipelines, WCAG 2, Full-stack, Full-stack Development, Responsive Web Design (RWD), Web Development, User Interface (UI), Integration Testing, Redux, Context API, Git, AWS Cloud Development Kit (CDK), Express.js, Architecture, Microservices, Integration, Axios, Authentication, JSX, Pixel Perfect, Deployment, Cloud, Cache, User Experience (UX), Vite, Software Architecture, Kubernetes, Vue 2, Agile, Swagger, OpenAPI, Design, Mobile First, REST, Airtable, Storybook, Back-end, Yarn, DOM, Asynchronous I/O, Vercel, Contentful, Vanilla JS, Netlify, Web Usability, GraphQL, ECMAScript (ES6), API Development, Reverse Engineering, Redux Toolkit, Application State Management, MERN Stack, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Amazon RDS, Jira, Serverless, Prisma, Front-end Design, Front-end Build Tools, Zustand, Test-driven Development (TDD), Amazon DynamoDB, Web Applications, D3.js, UI Development, i18n, Database Management Systems (DBMS), Fastify, Amazon S3 (AWS S3), AWS Amplify, AmplifyJS, Apache Kafka, UI Design, DevOps, Object-relational Mapping (ORM), Software Engineering, reCAPTCHA, Highcharts, HTTPS, Terraform, Twilio API, Version Control, NPM, Cross-browser Compatibility, Lambda Functions, Responsive, Single-page Applications (SPAs), Event-driven Architecture, Web Content Accessibility Guidelines (WCAG), PagerDuty, API Design, Database Management, App Development, Web App Development, Cloud Platforms, Python, MacOS, Shadcn, Email Integration, RESTFul APIs, Socket.IO, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Continuous Delivery (CD), Continuous Integration (CI), Refactoring, Code Auditing, OAuth, Authorization, Data Modeling, System Design, Server-side Rendering (SSR), Solution Architecture, React Hooks

Full-stack Developer

2022 - 2023

ROSETTA.AI HOLDING PTE. LTD.

Developed new features for a GTM-based plugin used by 50+ stores generating over $3 million.
Extended user behavior tracking capabilities and data were gathered to enhance the internal AI models. This helps serve customers exciting, relatable products they're more inclined to buy.
Led the architecture overhaul changes to lessen the cost of operations, resulting in more revenue.

Technologies: React, TypeScript, Redux, Node.js, Sass, Flux, Tailwind CSS, Integration, Axios, Authentication, Google Cloud Storage, Google Cloud, JSX, Pixel Perfect, Deployment, Cloud, Cache, Search Engine Optimization (SEO), User Experience (UX), Vite, Chromium, Minimum Viable Product (MVP), Software Architecture, Kubernetes, Agile, Swagger, OpenAPI, Design, Stripe Payments, Mobile First, REST, MariaDB, AWS Lambda, Back-end, Yarn, WebSockets, DOM, Asynchronous I/O, Strapi, Contentful, Vanilla JS, Web Usability, ECMAScript (ES6), API Development, Reverse Engineering, Redux Toolkit, Application State Management, MERN Stack, Chatbots, Amazon RDS, Jira, Prisma, Front-end Design, Front-end Build Tools, Zustand, Web Applications, GitHub, UI Development, Full-stack Development, Database Management Systems (DBMS), Google Analytics, Payment Gateways, Content Management Systems (CMS), UI Design, Sentry, Software Engineering, reCAPTCHA, GitHub Actions, SaaS, HTTPS, Version Control, NPM, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), App Development, Web App Development, Cloud Platforms, MacOS, PWA or Progressive Web Apps, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Continuous Integration (CI), Code Auditing, Authorization, Data Modeling, System Design, Solution Architecture, React Hooks

Senior Full-stack Developer

2021 - 2023

Twilio

Headed the design and execution of technical projects. Delivered the Partner Showcase portal launched at Twilio's annual conference SIGNAL 2021 and used by more than 200 Twilio partners worldwide.
Led the UI effort and focused on providing a responsive and accessible experience to Twilio partners and their customers.
Took Twilio partners' engagement to another level by building state-of-the-art applications to showcase and onboard their products smoothly.
Contributed to CI/CD pipeline automation, Cypress.io E2E tests, and Jest unit tests, and single-handedly carried out all DevOps responsibilities for the team.
Saved more than 125 hours of developer's time by optimizing the project deployment pipeline from over 35 minutes to under five minutes.

Technologies: JavaScript, Node.js, React, Next.js, Vue, Nuxt.js, Docker, Docker Compose, TypeScript, Cypress, CSS, HTML, HTML5, CSS3, Redis, APIs, Unit Testing, GitHub, PostgreSQL 10, NoSQL, MongoDB, Jest, Webpack, API Integration, Code Review, Design Patterns, Front-end Development, Back-end Development, Front-end, Amazon Web Services (AWS), React Router, REST APIs, Databases, CI/CD Pipelines, WCAG 2, Full-stack, Responsive Web Design (RWD), Web Development, User Interface (UI), Integration Testing, Redux, Context API, JSON, Git, Express.js, Integration, Axios, Authentication, JSX, Pixel Perfect, Deployment, Cloud, Cache, User Experience (UX), Vite, Software Architecture, Kubernetes, Vue 2, Agile, Swagger, OpenAPI, Design, Mobile First, REST, Airtable, Storybook, Back-end, Yarn, DOM, Asynchronous I/O, Vercel, Contentful, Vanilla JS, Web Usability, GraphQL, ECMAScript (ES6), API Development, Reverse Engineering, Redux Toolkit, Application State Management, MERN Stack, Jira, Serverless, Prisma, Front-end Design, Front-end Build Tools, Zustand, Test-driven Development (TDD), Amazon DynamoDB, Web Applications, Data Visualization, D3.js, UI Development, i18n, Full-stack Development, Architecture, Database Management Systems (DBMS), Fastify, Amazon S3 (AWS S3), AWS Amplify, AmplifyJS, UI Design, DevOps, Object-relational Mapping (ORM), Software Engineering, reCAPTCHA, Highcharts, HTTPS, Version Control, NPM, Cross-browser Compatibility, Lambda Functions, Responsive, Single-page Applications (SPAs), Event-driven Architecture, Web Content Accessibility Guidelines (WCAG), PagerDuty, API Design, Database Management, App Development, Web App Development, Cloud Platforms, Python, MacOS, Email Integration, RESTFul APIs, Role-based Access Control (RBAC), Relational Database Design, Front-end Architecture, Continuous Delivery (CD), Continuous Integration (CI), Refactoring, Code Auditing, Authorization, Data Modeling, System Design, Server-side Rendering (SSR), Solution Architecture, React Hooks

Senior Full-stack Developer

2020 - 2021

LearningMate

Worked on converting a Lambda function into native Node.js code for an Edge search function, reducing cost and time taken.
Developed an application written in Angular and React for the client, Macmillan Education.
Optimized an Electron-based multi-platform application resulted in better load and startup time.
Optimized PowerShell scripts for better EPUB and JSON processing, reducing the manual validation step.
Integrated Segment.io tracking in their back-end application to better understand the customer behavior and system actions, which helped them generate valuable metrics to show to their investors.

Technologies: JavaScript, Node.js, Express.js, Electron, React, AWS Lambda, SQLite, PostgreSQL, CSS, HTML, HTML5, CSS3, TypeScript, APIs, Unit Testing, NoSQL, MongoDB, i18n, React Redux, Redux, Webpack, API Integration, Code Review, Design Patterns, Front-end Development, Back-end Development, Front-end, React Router, REST APIs, Databases, WCAG 2, Full-stack, Responsive Web Design (RWD), Web Development, User Interface (UI), Integration Testing, Context API, JSON, Git, Integration, Axios, SQL, Firebase, Authentication, Google Cloud, JSX, Pixel Perfect, NestJS, Cache, User Experience (UX), Chromium, Minimum Viable Product (MVP), Agile, Swagger, OpenAPI, Mobile First, REST, MariaDB, Back-end, MySQL, DOM, Asynchronous I/O, Contentful, Vanilla JS, SCSS, Web Usability, ECMAScript (ES6), API Development, Reverse Engineering, Vue 3, Application State Management, Google SEO, MERN Stack, Jira, Front-end Design, Front-end Build Tools, Web Applications, GitHub, UI Development, Full-stack Development, Database Management Systems (DBMS), Amazon S3 (AWS S3), UI Design, Object-relational Mapping (ORM), Software Engineering, reCAPTCHA, GitHub Actions, HTTPS, Version Control, NPM, Cross-browser Compatibility, OAuth, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), API Design, App Development, Web App Development, Cloud Platforms, React Native, Mobile Development, RESTFul APIs, Mobile App Development, Role-based Access Control (RBAC), Relational Database Design, WebRTC, Front-end Architecture, Code Auditing, Authorization, Data Modeling, System Design, Solution Architecture, React Hooks

Software Engineer

2019 - 2020

MachineSense

Assisted in migration to microservices container architecture of the whole stack using Docker.
Parsed and visualized high-speed data using Azure Functions to reduce calculation time consumption by 10%.
Established a secure API proxy layer to enable clients to access APIs securely and quickly.
Developed a data access object (DAO) layer to seamlessly fetch data from various database systems in diverse formats as needed.
Contributed to developing a single sign-on (SSO) platform to enable better UX.
Developed a reverse SSH platform for ease of access to the industrial Internet of Things (IIoT) data hubs located in remote locations.
Implemented scheduled job microservices using Node.js, Express.js, and MongoDB to automate the manual process of the data sync and notification service and an app to display the success or failure of jobs.

Technologies: JavaScript, Node.js, Express.js, Electron, Docker, Docker Compose, TypeScript, Azure Functions, Vue, MongoDB, Redis, InfluxDB, MQTT, CSS, HTML, HTML5, CSS3, APIs, GitHub, NoSQL, jQuery, Progressive Web Applications (PWAs), Webpack, API Integration, Code Review, Design Patterns, Front-end Development, Back-end Development, Amazon Web Services (AWS), REST APIs, Databases, CI/CD Pipelines, Full-stack, Amazon EC2, Responsive Web Design (RWD), Web Development, User Interface (UI), Context API, JSON, Git, Leadership, Tailwind CSS, Integration, Axios, Visualization, Dashboards, Authentication, Vue Router, Vuetify, JSX, Pixel Perfect, NestJS, Deployment, Cloud, Internet of Things (IoT), Cache, Embedded Systems, Search Engine Optimization (SEO), User Experience (UX), Minimum Viable Product (MVP), Django, Python, Vue 2, Agile, Swagger, OpenAPI, Google Sheets, Mobile First, REST, Back-end, PHP, WebSockets, MySQL, DOM, Chrome Extensions, AWS IoT, Asynchronous I/O, Strapi, Elasticsearch, Contentful, Vanilla JS, SCSS, Web Usability, ECMAScript (ES6), API Development, FastAPI, Reverse Engineering, Vue 3, Application State Management, Google SEO, Jira, Front-end Design, Front-end Build Tools, Maps, Web Applications, Data Visualization, D3.js, UI Development, Full-stack Development, Database Management Systems (DBMS), Material UI, UI Design, DevOps, Startups, Chart.js, Object-relational Mapping (ORM), Software Engineering, Amazon Elastic Container Service (ECS), reCAPTCHA, Raspberry Pi, AWS Step Functions, GitHub Actions, HTTPS, Twilio API, Version Control, NPM, Lambda Functions, OAuth, Flask, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), API Design, Database Management, App Development, Web App Development, Cloud Platforms, RESTFul APIs, Socket.IO, Role-based Access Control (RBAC), Relational Database Design, Infrastructure, Front-end Architecture, Code Auditing, Authorization, Azure, Cloud Architecture, Data Modeling, System Design, Laravel, Solution Architecture

Software Developer

2018 - 2019

MachineSense

Developed a MongoDB migration utility web app to help with data administration tasks using Vanilla JS.
Worked on scripts for automating the database backup and restore as necessary.
Developed a high-speed data visualizer and OTA portal to enable better visualization and automated workflow.

Technologies: JavaScript, Node.js, Express.js, Pug, Docker, MQTT, CSS, HTML, AWS Lambda, Azure, APIs, jQuery, Progressive Web Applications (PWAs), Webpack, API Integration, Front-end Development, Back-end Development, Front-end, Amazon Web Services (AWS), REST APIs, Databases, CI/CD Pipelines, Full-stack, Amazon EC2, Responsive Web Design (RWD), Web Development, User Interface (UI), Context API, JSON, Git, Tailwind CSS, Axios, Visualization, Dashboards, Authentication, Vue Router, Vuetify, JSX, Pixel Perfect, NestJS, Deployment, Cloud, Internet of Things (IoT), Cache, Embedded Systems, Search Engine Optimization (SEO), User Experience (UX), Minimum Viable Product (MVP), Django, Python, Vue 2, Agile, Swagger, OpenAPI, Google Sheets, Mobile First, REST, Back-end, PHP, WebSockets, MySQL, DOM, Chrome Extensions, AWS IoT, Asynchronous I/O, Strapi, Elasticsearch, Contentful, Vanilla JS, SCSS, Web Usability, ECMAScript (ES6), API Development, FastAPI, Reverse Engineering, Vue 3, Application State Management, Google SEO, Jira, Front-end Design, Front-end Build Tools, Maps, Web Applications, Data Visualization, D3.js, GitHub, UI Development, Full-stack Development, Database Management Systems (DBMS), Material UI, UI Design, DevOps, Startups, Chart.js, Object-relational Mapping (ORM), Software Engineering, Amazon Elastic Container Service (ECS), reCAPTCHA, Raspberry Pi, AWS Step Functions, GitHub Actions, HTTPS, Twilio API, Version Control, NPM, Lambda Functions, OAuth, Flask, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), API Design, Database Management, App Development, Web App Development, Cloud Platforms, RESTFul APIs, Socket.IO, Role-based Access Control (RBAC), Relational Database Design, Infrastructure, Front-end Architecture, Code Auditing, Authorization, Cloud Architecture, Data Modeling, System Design, Laravel, Solution Architecture

Junior Software Developer

2018 - 2018

Tenpi Technologies Pvt Ltd

Developed MQTT Broker web platform to help manage IoT devices and visualize data transfer on topics of interest.
Worked on a full-stack solution for systematic garbage collection and staff monitoring in Kolkata and Jamshedpur City.
Led a team of two interns for the license plate capture image recognition model.

Technologies: JavaScript, Node.js, Bootstrap, HTML, CSS, Pug, Python, Google Maps API, Google Maps SDK, jQuery, Webpack, Front-end Development, Back-end Development, Front-end, REST APIs, Gatsby, Full-stack, Amazon EC2, Responsive Web Design (RWD), Web Development, User Interface (UI), JSON, Git, Integration, Axios, Visualization, Dashboards, Authentication, Cloud Firestore, Vue Router, Vuetify, Pixel Perfect, NestJS, Deployment, Cloud, Internet of Things (IoT), Cache, Embedded Systems, Search Engine Optimization (SEO), User Experience (UX), Minimum Viable Product (MVP), XML, Django, Agile, Swagger, OpenAPI, Google Sheets, Mobile First, REST, Back-end, PHP, MySQL, DOM, AWS IoT, Asynchronous I/O, Strapi, Contentful, Vanilla JS, Web Usability, ECMAScript (ES6), API Development, FastAPI, Reverse Engineering, Google SEO, Jira, Front-end Design, Front-end Build Tools, Maps, Web Applications, GitHub, UI Development, Full-stack Development, Database Management Systems (DBMS), UI Design, DevOps, Startups, Object-relational Mapping (ORM), Software Engineering, Amazon Elastic Container Service (ECS), reCAPTCHA, Raspberry Pi, AWS Step Functions, HTTPS, Version Control, NPM, Flask, Responsive, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), API Design, App Development, Web App Development, Cloud Platforms, RESTFul APIs, Socket.IO, Navigation, Role-based Access Control (RBAC), Relational Database Design, Infrastructure, Front-end Architecture, Code Auditing, Authorization, Data Modeling, System Design, Laravel, Solution Architecture

Experience

S3 Bucket Downloader

Created an S3 Bucket downloader to enable downloading data from S3. It has three modes, including a CLI mode, interactive mode, and download-all mode. These modes allow users to download AWS S3 Bucket files into a default or custom path. It also syncs changes if users choose the same directory as the last time. It now supports the setting of AWS configurations like AWS access key ID, AWS secret key, and AWS region and output format in the interactive mode.

AI Playground

An AI playground where you can try out different AI models side by side, add new models, and change model parameters and settings. You can try chat and completion features, copy their responses, and save and edit chat histories. You can manage billing, teams, organizations, and privacy control, among other things.

Fastify TypeScript Generator

Developed a generator to get started with Fastify projects. This extension generates a boilerplate code for the fastest web server framework in Node.js and Fastify. It comes with different configurations.

Relax-a-little Extension

https://marketplace.visualstudio.com/items?itemName=open-devs.relax-a-little

Developed this extension to remind users to relax. It reminds them to look somewhere else, drink water, walk, do some lunges, or, best of all, slowly fades out the colors until they take their hands off the keyboard for a moment. It has many configurations to control the reminder time, water drinking intervals, generic break alerts, and more.

Vue Horizontal List Auto-scroll

Developed a Vue horizontal list auto-scroll, which allows auto-scrolling a vertical card reusable component. This is the pure Vue horizontal list implementation with minimal dependencies and SSR support. It is also mobile-friendly, touch-friendly, and responsive. I tested it on Chrome, Edge, and Safari, and it needs minimal configuration to set up. Its other features include:

• Lightweight implementation with one dependency.
• An invisible scroll bar for consistent Windows and macOS browsing experience.
• An auto-scroll feature with a return-to-start or repeat feature.
• A slideshow feature with a return-to-start or repeat feature.
• A snap-to-the-nearest-item feature in the horizontal list when scrolling.
• A windowed mode that respects the container and does not show overflowing items.
• A full-screen mode that shows overflowing items. It is best for small screens.
• Dynamic, responsive breakpoint configuration.
• A navigation control that shows up dynamically for larger screens.
• Custom preview and next icon support.

JavaScript Explorer

Developed the JavaScript Explorer as a resource to help developers figure out what JavaScript methods would be best to use at any given time. The goal is to find a relevant method using a simple sentence without reading whole documents.

Open Devs Website

Built this Nuxt.js application as a homepage for open devs. Its UI is written in Gridsome, and its content is in a mark-down form. It is entirely serverless, and it scales following requirements. Additionally, it has a blog section showcasing our creations.

Care for the Living Portal

Created Care for the Living as a donation portal. People can request any sort of donations, including plasma, oxygen, medicine, blood, money, and more. This portal has already helped many people in need.

Express.js Boilerplate Generator

Developed an Express.js boilerplate generator as a tool that generates new Express.js applications in TypeScript with various options to choose from based on users' project needs. It is highly customizable and helps to support an app idea quickly.

Superfill.ai

https://superfill.ai

Store your information once. Let AI fill job applications, dating profiles, rental forms, and surveys instantly.

Superfill is a browser extension that stores your information locally. When you encounter a form, our AI reads the form fields, matches them to your stored memories, and fills everything in with one click. You bring your own OpenAI, Anthropic, Groq, Gemini, and Deepseek API key for complete privacy.

Learn With AI

https://learn-with-ai-topaz.vercel.app/

Learn With AI is an edtech platform that empowers students to design their own learning experiences by generating personalized lessons around any topic they choose. Instead of relying on static, pre-made content, learners can input a subject and receive structured lessons that adapt to their level of understanding. The system creates explanations, examples, practice questions, and quizzes, encouraging self-directed exploration and deeper engagement. Built with modern frameworks like Next.js, React, and Tailwind CSS, it’s scalable, fast, and accessible across devices. By combining adaptive learning paths with interactive formats, Learn With AI empowers students to take ownership of their education, fostering curiosity, autonomy, and future-ready skills, while making lesson creation accessible to anyone, anywhere.

Education

2020 - 2021

Postgraduate Diploma in Software Development

International Institute of Information Technology Bangalore - Bengaluru, India

2015 - 2019

Bachelor's Degree in Information Technology

MCKV Institute of Engineering - Kolkata, India

NPTEL

Skills

Libraries/APIs

Node.js, React, Vue, React Router, REST APIs, Context API, Vue 2, OpenAPI, API Development, Vue 3, Highcharts, React Query, OpenAI API, Socket.IO, React Redux, Vuex, Google Maps API, jQuery, Stripe, D3.js, AWS Amplify, AmplifyJS, Twilio API, GitHub API, Google Calendar API, WebRTC, Google Maps SDK, Stripe API, Google Ads API, PayPal API, WhatsApp API, Chart.js, Recharts, TanStack Table, Chrome API, GraphQL API, Apollo Client, React Native for Web, Python API

Tools

GitHub, Git, JSX, Redux Toolkit, Jira, Prisma, NPM, Expo, Shadcn, Webpack, AWS Cloud Development Kit (CDK), Figma, ChatGPT, Google Sheets, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Front-end Build Tools, Google Analytics, Sentry, Amazon Elastic Container Service (ECS), Terraform, n8n, Docker Compose, MQTT, Lerna, Plaid, Hygraph (GraphCMS), Auth0, AWS Step Functions, Bubble, TanStack Router, Amazon Cognito, AI SDK, React Apollo, GitLab CI/CD, AWS IAM, Vitest, Shadcn UI, Coverage.py

Languages

JavaScript, TypeScript, HTML, CSS, Python, HTML5, GraphQL, ECMAScript (ES6), CSS3, Sass, SQL, PHP, SCSS, Go, Ruby, Pug, XML, Modern JavaScript, Python 3

Frameworks

Next.js, Nuxt.js, Express.js, Electron, Material UI, Fastify, Redux, Tailwind CSS, Swagger, Vanilla JS, Svelte, React Native, Jest, Flux, Vuetify, NestJS, Django, Yarn, i18next, Ruby on Rails (RoR), Flask, Agentic Frameworks, gRPC, Laravel, Cypress, Bootstrap, tRPC, Nuxt 3, LangGraph, Next.js 14

Paradigms

Design Patterns, Responsive Web Design (RWD), Agile, REST, Object-relational Mapping (ORM), Mobile Development, Responsive, App Development, Role-based Access Control (RBAC), Unit Testing, Microservices, Search Engine Optimization (SEO), Test-driven Development (TDD), UI Design, DevOps, Event-driven Architecture, Database Design, Automation, Continuous Delivery (CD), Continuous Integration (CI), Refactoring, Application Architecture, Microfrontends, Azure DevOps, Testing

Platforms

Docker, Azure, Amazon Web Services (AWS), Amazon EC2, Vercel, Contentful, MacOS, Mobile, AWS Lambda, Google Cloud Platform (GCP), Firebase, Kubernetes, AWS IoT, Raspberry Pi, PagerDuty, Azure Functions, Netlify, Apache Kafka, Clerk, CrewAI, Sanity Studio, Langfuse, Amazon

Storage

PostgreSQL, MongoDB, NoSQL, JSON, Redis, PostgreSQL 10, Databases, Cloud Firestore, Google Cloud Storage, Google Cloud, Cache, MariaDB, MySQL, Amazon DynamoDB, Amazon S3 (AWS S3), Database Management, Database Management Systems (DBMS), SQLite, InfluxDB, Elasticsearch

Other

APIs, API Integration, Code Review, Front-end Development, Back-end Development, Front-end, CI/CD Pipelines, Full-stack, Web Development, User Interface (UI), Architecture, Full-stack Development, Integration, Axios, Dashboards, Authentication, Pixel Perfect, Deployment, Cloud, Internet of Things (IoT), User Experience (UX), Minimum Viable Product (MVP), Software Architecture, Mobile First, Back-end, DOM, Chrome Extensions, Asynchronous I/O, FastAPI, Reverse Engineering, Application State Management, MERN Stack, Serverless, Front-end Design, Web Applications, Data Visualization, UI Development, Artificial Intelligence (AI), Software Engineering, Supabase, reCAPTCHA, GitHub Actions, HTTPS, AI Chatbots, Version Control, OAuth, Tailwind UI, Single-page Applications (SPAs), Web Content Accessibility Guidelines (WCAG), Web App Development, LLM Integration, AI Agents, PWA or Progressive Web Apps, AI Integration, React Hooks, RESTFul APIs, Mobile App Development, Relational Database Design, Front-end Architecture, Proof of Concept (POC), Authorization, Microsoft Entra, Data Modeling, System Design, Server-side Rendering (SSR), Solution Architecture, i18n, Progressive Web Applications (PWAs), WCAG 2, TypeORM, Integration Testing, Monorepos, Visualization, Vue Router, Vite, Chromium, Design, Airtable, Storybook, WebSockets, Web Usability, Pinia, Google SEO, Chatbots, Amazon RDS, Zustand, Maps, OpenAI, Infrastructure, Payment Gateways, Large Language Models (LLMs), LangChain, Prompt Engineering, Content Management Systems (CMS), Startups, React Server Components, ChatGPT API, Internationalization, Translation, Website Translation, SaaS, Cross-browser Compatibility, Lambda Functions, API Design, Retrieval-augmented Generation (RAG), Cloud Platforms, Machine Learning Operations (MLOps), Email Integration, Agentic AI, Infrastructure as Code (IaC), Workflow, Agentic RAG Systems, Vector Data, Radix UI, Navigation, Cloudflare, Vector Databases, Code Auditing, Audits, Cloud Architecture, Security, AI Programming, Large Language Model Operations (LLMOps), RAG Pipelines, Gatsby, Apollo Server, Stripe Payments, Leadership, Animation, Embedded Systems, Strapi, OpenAI GPT-3 API, OpenAI GPT-4 API, GitHub Marketplace, Turborepo, Hugging Face, ChromaDB, WXT, Browser extension, Anthropic, Supabase Auth, Apollo, Private NPM Modules, Bun, GitOps, Argo CD, React Native Navigation, React Native Reanimated, IT Security, Secure Coding, Brute-force Monitors (BFM), Feasibility Studies, Llama 3, Code Coverage, Concurrency Patterns, Scripting

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