Abhi is available for hire
Hire AbhiAbhi Arora
Verified Expert in Engineering
Full-stack Developer
Hyderabad, Telangana, India
Toptal member since April 7, 2025
Bio
Abhi is a senior full-stack engineer with 10+ years of experience building scalable SaaS platforms, enterprise dashboards, integrations, and AI-assisted workflows. He specializes in React, React Native, Next.js, Node.js, TypeScript, PostgreSQL, and cloud services. Abhi has built systems that handle 10,000+ daily transactions and have automated 500,000+ store documents. He helps teams ship reliable products faster using strong engineering fundamentals and tools like Claude Code and Cursor.
Portfolio
PepsiCo Global - DPS - Fieldglass
React, Distributed Systems, GitLab, Web Development, Agentic Engineering...
Walmart
JavaScript, Node.js, React, Next.js, TypeScript, Microservices, RESTFul APIs...
Gemini Solutions
JavaScript, React, Next.js, Express.js, GraphQL, Redux, TypeScript...
Experience
- Next.js - 8 years
- JavaScript - 8 years
- Java 9 - 8 years
- Node.js - 8 years
- Distributed Systems - 7 years
- React - 7 years
- Microservices - 6 years
- TypeScript - 6 years
Work Experience
Full-stack AI Engineer
2025 - 2026
PepsiCo Global - DPS - Fieldglass
- Architected and optimized enterprise B2B applications using React, Next.js, Node.js, improving application performance and API response times by up to 40%.
- Built and maintained scalable microservices, APIs, and integration workflows supporting multi-region business operations and enterprise platform use cases.
- Developed full-stack platform features across front-end, back-end, database, and cloud services, improving system reliability and release efficiency by 30%.
- Applied SQL optimization, API design, and service-level improvements to improve scalability, maintainability, and production performance.
- Leveraged AI-assisted development tools, including Claude Code, Cursor, Windsurf, MCP integrations, and sub-agent patterns, to speed up implementation, debugging, and test coverage while maintaining engineering quality.
- Implemented an AI document parsing system using instructor.js for LLM orchestration and Zod for structured output validation, comparing top-tier and mini models across providers (GPT-4/3.5, Claude Opus/Haiku, Gemini Pro/Flash, and Grok).
Technologies: React, Distributed Systems, GitLab, Web Development, Agentic Engineering, Claude Code, Codex, Cursor AI, Windsurf, Next.js, JavaScript, AI Architecture, AI Agent Orchestration, Dashboards, Vite, API Design, API Development, API Documentation, System Integration, Multitenancy, GraphQL API, Cloud Deployment, Authentication, Amazon RDS, Amazon Simple Queue Service (SQS), Claude API, Google Cloud Platform (GCP), Front-end Development, Technical Architecture, PEP 517, CPython, Cargo, Monorepos, Python 3
Software Development Engineer III
2021 - 2024
Walmart
- Architected and developed a full-stack AI-powered merchant platform using Next.js, Node.js, MongoDB, and React, deployed to internal cloud with a complete CI/CD pipeline implementation.
- Designed and built scalable microservices and React micro-frontends delivering real-time sales and inventory insights, reducing data retrieval latency by 60% through optimized APIs and database queries.
- Developed merchant engagement and inventory management capabilities using FastAPI, Node.js, Express, Next.js, and REST APIs, improving merchant satisfaction by 40% while streamlining operational workflows.
- Architected an event-driven PDF generation pipeline using Node.js producers, Java Spring Boot Kafka consumers, and Azure Blob Storage, successfully generating 500,000+ store PDFs with 99.9% processing reliability.
Technologies: JavaScript, Node.js, React, Next.js, TypeScript, Microservices, RESTFul APIs, HTML, Redux, MongoDB, Elasticsearch, GitHub, Express.js, APIs, PostgreSQL, Git, SQL, GitHub Actions, CSS, HTML5, Tailwind CSS, Figma, MySQL, Data Scraping, REST APIs, OpenAI, OpenAPI, Prompt Engineering, OpenAI API, Front-end, AI Design, Django, Amazon Web Services (AWS), AI Agents, Artificial Intelligence (AI), Full-stack, API Integration, Back-end, Full-stack Development, NestJS, SaaS, Software Architecture, Distributed Systems, DevOps, GitLab, Web Development, Claude Code, Codex, Cursor AI, Windsurf, Material UI, Vite, API Design, API Development, System Integration, GraphQL API, Cloud Deployment, Google Cloud Platform (GCP), Front-end Development, Technical Architecture, PEP 517, CPython, Cargo, Monorepos, Python, Python 3
Senior Software Engineer
2019 - 2021
Gemini Solutions
- Owned full-stack development of an insurance platform across 2-wheeler, 4-wheeler, and health insurance domains using Python, React, Node.js, and AWS, supporting 50,000+ monthly policy journeys and improving policy workflow completion by 25%.
- Designed modular React and Next.js micro-frontends, and integrated them with Node.js microservices, reducing cross-domain dependencies by 35% and improving feature delivery speed by 30%.
- Implemented Kafka-based asynchronous post-purchase notification workflows, improving notification delivery reliability to 99%+ and reducing communication processing latency by 40%.
- Built automated test coverage using Jest and JUnit, increasing front-end and back-end test coverage to 80%+ and reducing regression defects by 30% before production releases.
Technologies: JavaScript, React, Next.js, Express.js, GraphQL, Redux, TypeScript, Microservices, RESTFul APIs, HTML, Playwright, SQL, MongoDB, Git, Slack, APIs, AWS IoT, MacOS, Jest, PostgreSQL, GitHub, GitHub Actions, CSS, HTML5, Tailwind CSS, Figma, MySQL, Python, Data Scraping, iOS, Algorithmic Trading, Angular, REST APIs, Front-end, Django, Amazon Web Services (AWS), Java, Supabase, OAuth, AI Agents, Artificial Intelligence (AI), Full-stack, Machine Learning, Linux, API Integration, Back-end, E-learning, Learning Management Systems (LMS), Google Material Design, Full-stack Development, AI Integration, NestJS, WebSockets, Chart.js, CI/CD Pipelines, SaaS, Supabase Auth, Software Architecture, Server-side Rendering (SSR), Static Site Generators, Java 9, Distributed Systems, Integration, Twilio, DevOps, SQLite, Web Development, Backups, OpenStack, Dashboards, Material UI, API Design, API Development, API Documentation, System Integration, Single Sign-on (SSO), Multitenancy, GraphQL API, Cloud Deployment, Security, Authentication, Amazon Simple Queue Service (SQS), Front-end Development, Technical Architecture, PEP 517, CPython, Cargo, Monorepos, Python 3
Full-stack Developer
2018 - 2019
Revinfotech
- Developed the cryptocurrency trading web application using React, Next.js, and Node.js.
- Implemented socket programming to enable real-time communication of trade orders between the UI and back-end systems.
- Collaborated with cross-functional teams to facilitate design and architecture discussions.
Technologies: JavaScript, TypeScript, Node.js, React, Express.js, Next.js, MongoDB, Git, Microservices, GraphQL, Jest, PostgreSQL, Docker, Kubernetes, Slack, APIs, AWS IoT, MacOS, SQL, GitHub, HTML, GitHub Actions, CSS, HTML5, Tailwind CSS, Figma, MySQL, Redux, Python, Data Scraping, iOS, Algorithmic Trading, Angular, REST APIs, Front-end, Amazon Web Services (AWS), Java, Supabase, OAuth, AI Agents, Machine Learning, Linux, API Integration, Back-end, E-learning, Learning Management Systems (LMS), Google Material Design, Full-stack Development, AI Integration, NestJS, WebSockets, Chart.js, CI/CD Pipelines, SaaS, Supabase Auth, Software Architecture, Server-side Rendering (SSR), Static Site Generators, Java 9, Distributed Systems, Front-end Development, PEP 517, CPython, Cargo, Monorepos, Python 3
Full-stack Developer
2016 - 2018
Lenovo
- Developed an intuitive admin dashboard for comprehensive analysis of user interactions on the primary cryptocurrency web platform.
- Designed reusable React and Next.js components for smooth development and ensured responsive design across platforms.
- Integrated RESTful APIs and implemented secure authentication flows using JWT, improving platform performance and user data protection.
Technologies: Node.js, React, AWS IoT, Microservices, Express.js, GraphQL, JavaScript, Next.js, Kubernetes, Docker, Jest, Redux, MongoDB, GitHub, Slack, APIs, MacOS, PostgreSQL, Git, SQL, HTML, GitHub Actions, CSS, HTML5, Tailwind CSS, Figma, MySQL, Python, Data Scraping, iOS, Algorithmic Trading, Angular, REST APIs, Front-end, Java, Supabase, Machine Learning, Linux, API Integration, Back-end, Full-stack Development, Software Architecture, Server-side Rendering (SSR), Static Site Generators, Java 9, Distributed Systems
Project History
Opendoor.com – Real Estate Platform
http://opendoor.comI worked on Opendoor’s core web platform, which helps users buy and sell homes entirely online. The focus was on creating a fast, intuitive, and scalable experience that lets users explore listings, get home valuations, and manage the full transaction journey without traditional agents.
SKILLS
Front end: React, TypeScript, Tailwind CSS, Next.js, Redux Toolkit
Back end and APIs: Node.js, Express, GraphQL
Others: AWS, Docker, Playwright, OAuth2, GitHub Actions, Figma
WORK DONE
• Built and maintained key modules like map-based home search, listing filters, and offer management flows.
• Worked with design and product teams to implement clean, responsive UI using Tailwind and Figma designs.
• Integrated GraphQL APIs to fetch real-time listing data, pricing insights, and customer offer statuses.
• Focused heavily on performance—used SSR/ISR in Next.js, optimized image loading, and reduced TTI.
• Led authentication and RBAC improvements using OAuth2 and custom role management.
• Implemented automation testing using Playwright to ensure end-to-end flows worked as expected.
• Worked on caching strategies and incremental static regeneration for better data freshness and SEO.
SKILLS
Front end: React, TypeScript, Tailwind CSS, Next.js, Redux Toolkit
Back end and APIs: Node.js, Express, GraphQL
Others: AWS, Docker, Playwright, OAuth2, GitHub Actions, Figma
WORK DONE
• Built and maintained key modules like map-based home search, listing filters, and offer management flows.
• Worked with design and product teams to implement clean, responsive UI using Tailwind and Figma designs.
• Integrated GraphQL APIs to fetch real-time listing data, pricing insights, and customer offer statuses.
• Focused heavily on performance—used SSR/ISR in Next.js, optimized image loading, and reduced TTI.
• Led authentication and RBAC improvements using OAuth2 and custom role management.
• Implemented automation testing using Playwright to ensure end-to-end flows worked as expected.
• Worked on caching strategies and incremental static regeneration for better data freshness and SEO.
Cron Parser
https://drive.google.com/file/d/1lMMBUJmLgH6B3ZThSeSQDshQxn-nwp9u/view?usp=sharingThis project is a simple tool that takes a cron expression as input and breaks it down into a readable schedule format. It helps users understand what a cron job does by showing the exact minutes, hours, days, months, and weekdays when it will run. It supports standard 5-field cron syntax and handles ranges, steps, and wildcards. This tool is useful for developers and system admins who schedule background tasks and want a quick way to verify or explain cron expressions.
TataAig.com - Tata AIG Insurance Website
I worked on the Tata AIG website, which allows users to explore, compare, and purchase insurance plans such as health, motor, and travel. The goal was to improve the overall user experience, speed up the platform, and smooth the journeys, especially for quote generation, policy renewals, and claims.
SKILLS
Front end: React, TypeScript, Tailwind CSS, Redux
Back end and APIs: Node.js, Express
Others: AWS, Docker, Jenkins, JWT, Postman, Cypress, Git
WORK DONE
• Built and improved major front-end journeys like motor insurance flow, claims submission, and policy renewal.
• Created clean, reusable UI components and ensured the experience worked great across devices.
• Integrated with multiple REST APIs to fetch policy info, handle payments, and update user data.
• Worked on optimizing performance—lazy-loaded pages, minimized bundle size, and improved Lighthouse scores.
• Focused on accessibility and ensured everything worked smoothly across browsers.
• Helped set up testing workflows using Cypress and wrote tests to catch bugs early.
• Joined daily standups, sprint planning, and client calls to stay aligned with business goals.
SKILLS
Front end: React, TypeScript, Tailwind CSS, Redux
Back end and APIs: Node.js, Express
Others: AWS, Docker, Jenkins, JWT, Postman, Cypress, Git
WORK DONE
• Built and improved major front-end journeys like motor insurance flow, claims submission, and policy renewal.
• Created clean, reusable UI components and ensured the experience worked great across devices.
• Integrated with multiple REST APIs to fetch policy info, handle payments, and update user data.
• Worked on optimizing performance—lazy-loaded pages, minimized bundle size, and improved Lighthouse scores.
• Focused on accessibility and ensured everything worked smoothly across browsers.
• Helped set up testing workflows using Cypress and wrote tests to catch bugs early.
• Joined daily standups, sprint planning, and client calls to stay aligned with business goals.
Education
2013 - 2016
Bachelor's Degree in Electronics and Communication Engineering
Chandigarh Engineering College, Landran - Mohali, Punjab
2010 - 2013
Associate's Degree in Electronics and Communication Engineering
Saint Kabir College - Fazilka, Punjab
Skills
Libraries/APIs
React, Node.js, REST APIs, OpenAI API, Chart.js, API Development, GraphQL API, Claude API, Playwright, OpenAPI, CPython
Tools
GitLab, Claude Code, Codex, Windsurf, Amazon Simple Queue Service (SQS), Git, Figma, Slack, GitHub, Auth0, Front-end Build Tools
Languages
JavaScript, Python, Java, Python 3, TypeScript, HTML, SQL, CSS, HTML5, GraphQL, Java 9
Frameworks
Django, NestJS, Material UI, Jest, Next.js, Express.js, Redux, Tailwind CSS, Angular, Cypress
Paradigms
Search Engine Optimization (SEO), Microservices, DevOps
Platforms
AWS IoT, iOS, Amazon Web Services (AWS), Linux, OpenStack, Google Cloud Platform (GCP), Docker, Kubernetes, Linkedln, MacOS, Windows, Apache Kafka, Azure, Twilio
Industry Expertise
E-learning
Storage
SQLite, Cloud Deployment, MongoDB, Elasticsearch, PostgreSQL, MySQL, Amazon S3 (AWS S3)
Other
Data Scraping, Algorithmic Trading, Front-end, Supabase, OAuth, AI Agents, Artificial Intelligence (AI), Full-stack, Machine Learning, API Integration, Back-end, Learning Management Systems (LMS), Google Material Design, Full-stack Development, AI Integration, CI/CD Pipelines, Software Architecture, Server-side Rendering (SSR), Static Site Generators, Distributed Systems, Web Development, Backups, Agentic Engineering, Cursor AI, Dashboards, Metabase, Vite, API Design, API Documentation, System Integration, Single Sign-on (SSO), Multitenancy, Security, Authentication, Amazon RDS, Front-end Development, Technical Architecture, Monorepos, Turborepo, Multi-tenanted, Adobe stock API, APIs, RESTFul APIs, GitHub Actions, Computer Skills, OpenAI, Prompt Engineering, AI Design, WebSockets, Security Audits, PEP 517, Cargo, Multilingual Language Models (MLMs), Pipelines, Figma to React, OpenAI GPT-4 API, SaaS, Supabase Auth, Large Language Models (LLMs), RAG Architecture, Integration, Cloud Infrastructure, Open Source, AI Architecture, AI Agent Orchestration
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