Mrigank Mridul
Verified Expert in Engineering
Full-stack Developer
Hamburg, Germany
Toptal member since April 19, 2022
Mrigank is an accomplished and adaptable senior full-stack developer with over a decade of experience. He also gained valuable experience working at startups, launching new projects from scratch. His expertise includes designing and implementing programs incorporating robust unit testing, efficient debugging, and streamlined code maintenance. Additionally, he excels in overseeing and guiding teams of developers, managing the product lifecycle, and building both front and back-end components.
Portfolio
Experience
- Node.js - 10 years
- JavaScript - 10 years
- React - 9 years
- TypeScript - 4 years
- Express.js - 4 years
- Next.js - 3 years
- Redux - 3 years
- GraphQL - 3 years
Availability
Preferred Environment
Web Project Management, Visual Studio Code (VS Code), Web Development, Jira, Trello, Git, MacOS, Docker, Slack
The most amazing...
...project I've done was revamping a decade-old web app to a PWA using React and Node.js, despite high traffic and complexity posing a challenge.
Work Experience
Lead Developer
Confidential
- Developed a multi-country eCommerce app with Commercetools and Storyblok, provided a scalable backend for managing products, and localized content, enabling seamless updates and personalized experiences across regions.
- Built user management, product listing, product details, and order flow, including payment integrations, ensuring a seamless shopping experience from browsing to checkout.
- Developed multiple back-end queue workers that executed tracking using Amazon SQS and SNS subscriptions, enabling customer data platform integration and marketing automation across devices.
Senior Full-stack Engineer
Zymego
- Collaborated with the CTO to define product requirements and design implementation in an early-stage healthcare startup.
- Designed and developed the adapter system using Node.js, PostgreSQL, and React to ensure compatibility with different EHR systems. Integrated with a 3rd- party and government APIs.
- Conducted exhaustive testing and research to ensure that the appointment management system was compatible with different EHR systems and could automate the appointment management process.
Senior Full-stack Engineer
NotiBet
- Created a React Native app with authentication that lists sports leagues and matches, enabling users to set up alerts for various values.
- Integrated the app with Firebase Auth for authentication and a database (Firestore) for the back end.
- Developed Google functions for scheduled jobs to track data and send notifications to iOS and Android users with Expo notifications.
- Managed the release of the initial versions to both the App Store and Google Play Store.
Senior Full-stack Engineer
Jimdo
- Developed an add-on marketplace using React and Node.js that allowed existing customers to buy add-ons without upgrading their packages.
- Migrated projects to GitHub Actions to speed up deployment and introduced branch deployments.
- Created self-service upgrades for customers to switch to better packages.
- Worked towards creating reusable front-end architecture and components, utilizing a UI library and starter project, conducting A/B testing, and implementing E2E test automation across multiple projects.
- Developed a monthly subscription flow to improve conversion rates.
Full-stack Developer
Monedo
- Served as a team leader and oversaw five individuals in charge of creating a client-side application using React and Node.js back-end middleware.
- Developed a shared architecture for multiple projects to allow clients across various countries to manage their loans easily.
- Conceptualized a business idea and brought it to fruition. I created a Node.js REST API server with a RabbitMQ queue worker to produce offers for loyal customers.
- Implemented structured logging using Elasticsearch Kibana and utilized Lambda functions to alert microservices based on logging metrics.
- Was involved in stakeholder management, collecting requirements, and conducting the POC for new ideas.
Full-stack Developer
BookMyShow
- Implemented React on the front end and Koa on the back end with PostgreSQL, and Redis caching and RabbitMQ for queue jobs for different booking flows.
- Architected the rewrite of a 10-year-old app to optimize performance, reduce infrastructure costs, and increase booking conversion.
- Managed technical hiring rounds, mentoring developers and QAs.
- Maintained a 10-year-old legacy system in PHP to serve the business as usual for different booking flows.
Senior Software Engineer
GeekyAnts India Pvt
- Developed social networking, eCommerce, and IoT applications for clients like Mortgagecs, Assured Pharmacy, and Spinalpedia.
- Led multiple teams and managed numerous projects concerning the complete project lifecycle.
- Used various frameworks and libraries from the PHP and JavaScript family for different projects based on project requirements and client's preferences.
- Started as a back-end engineer and moved to the front end, DevOps, and project management.
Experience
BookMyShow: Web App and Progressive Web App (PWA) | 2017
https://in.bookmyshow.comI designed a configuration-based workflow to integrate existing booking flows and maintain the old PHP and jQuery-based application. The pages were optimized for quick schedule access and easy bookings with minimal steps.
Payments and Checkout
I created self-service upgrades for current customers to switch to better packages. To improve conversion rates, I designed a monthly subscription flow. Additionally, I built an add-on marketplace that enabled existing customers to buy add-ons without upgrading their packages.
Microlending Web App
I created a shared architecture for multiple projects to provide clients in various countries with easy access to loan management. I led a team of five, responsible for designing the client-side application using React and Node.js middleware. Additionally, I implemented structured logging and reusable lambda functions for alerting based on logging metrics for microservices.
Education
Engineer's Degree in Computer Science
Visvesvaraya Technological University (VTU) - Bengaluru, India
Skills
Libraries/APIs
Node.js, React, jQuery, Stripe
Tools
Jira, Confluence, Git, GitHub, RabbitMQ, Slack, Webpack, JavaScript Testing, Amazon Simple Queue Service (SQS), CircleCI, Travis CI, Jenkins, Kibana, Bamboo, Trello, Expo, Firebase Authentication, Cron, Figma, Amazon Simple Notification Service (SNS), Braze, Amazon CloudWatch
Languages
JavaScript, TypeScript, HTML, GraphQL, CSS, PHP
Frameworks
Express.js, Jest, Next.js, Hapi.js, Redux, Cypress, Material UI, Laravel, Koa, NestJS, Apache Thrift, TestCafe, React Native
Paradigms
Agile, Test Automation, REST, E2E Testing, Kanban, Scrum, Requirements Analysis, Objectives & Key Results (OKRs), Code Refactoring, Automation
Platforms
Visual Studio Code (VS Code), AWS Lambda, MacOS, Docker, New Relic, Firebase, Amazon Web Services (AWS), Google Cloud Platform (GCP), Commercetools, Tealium
Storage
Relational Databases, MySQL, PostgreSQL, Elasticsearch, Datadog, Cloud Firestore
Other
Web Project Management, Web Development, Software Development, Sprints, APIs, Front-end Development, Front-end, Full-stack, Full-stack Development, GitHub Actions, Client Management, Technical Requirements, XState, MVP Design, System Architecture, A/B Testing, Architecture, Stakeholder Management, User Experience (UX), Prometheus, Progressive Web Applications (PWAs), Payment APIs, Card Payments, Release Management, App Store, Google Play Store, Google Cloud Functions, Job Schedulers, PostGraphile, ClickUp, Code Review, Team Mentoring
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