About
Frontend-focused Full Stack Developer with 1 year of production B2B SaaS experience at Konnectify. Building SystemMapper, a repository analysis platform with code visualization, AI-driven bug detection, and automated PR generation. Strong in React, TypeScript, Node.js, and end-to-end product development.
Experience3
Frontend Developer (Full Stack)
Jun 2025 — May 2026Konnectify · Chennai, Tamil Nadu, India
Built core B2B SaaS features across full stack (React/Next.js frontend, Node.js backend, PostgreSQL/MongoDB databases) as part of a 5-person engineering team. Led migration of billing platform to Stripe, architected third-party integration framework, and engineered a sophisticated workflow automation engine.
- Contributed to two major product revamps.
- Implemented subscription plans and multi-currency support for international customers.
- Built Freshsales and Freshdesk integrations as proof-of-concept.
- Optimized database queries using PostgreSQL indexing and caching patterns.
Independent Full Stack Developer
Oct 2023 — Jun 2025Independent Projects · Freelance · Remote
Architected and shipped full-stack applications using React, Next.js, Node.js, Express.js, MongoDB, and PostgreSQL. Owned complete development lifecycle: requirements gathering, architecture design, implementation, testing, and deployment. Implemented secure authentication systems (JWT tokens, OAuth flows) with role-based access control for multi-tenant applications. Designed scalable database schemas with query optimization and indexing strategies. Set up CI/CD pipelines using GitHub Actions; deployed applications on Vercel and cloud infrastructure. Built reusable component libraries using React hooks and TypeScript for type safety.
- Deployed 4+ production applications with 99.5% uptime
- Implemented JWT and OAuth authentication for 3+ applications
- Designed database schemas supporting millions of records with sub-100ms query times
- Set up GitHub Actions CI/CD pipelines reducing manual deployment time by 80%
- Built TypeScript component libraries reducing development time by 30%
Junior Software QA Engineer
Jul 2022 — Sep 2023Chella Software · Madurai, Tamil Nadu, India
Executed comprehensive testing of enterprise financial software across complex multi-module workflows. Performed functional testing, regression testing, and production issue debugging. Identified, reproduced, documented defects and verified fixes. Collaborated with development and product teams to investigate root causes, validate solutions, and ensure stable releases. Developed deep expertise in debugging production issues, understanding business workflows, and communicating technical problems to non-technical stakeholders.
- Tested 20+ financial modules across interconnected workflows
- Identified and debugged 150+ production issues with 98% fix verification rate
- Maintained comprehensive regression test suite reducing rework by 35%
- Reduced time-to-production-fix from 48 hours to 12 hours through improved debugging
- Achieved 99.2% software quality score across all releases
Projects3
SystemMapper
Built a repository analysis platform that scans public GitHub repositories and visualizes their code structure and dependencies through an interactive interface.
Open on systemmapper.netlify.app- React.js
- TypeScript
- Node.js
- GitHub API
ZapCart (eCommerce)
Built MERN eCommerce platform with role-based admin dashboard, dynamic product filtering, and centralized cart state, driving a 25% user engagement increase.
Open on zapcart.netlify.app- React.js
- Node.js
- Express.js
- MongoDB
- ShadCN
- PayPal API
Python Interview Cookbook
Open-source reference guide covering language concepts, standard library, and algorithmic patterns for interview preparation.
Open on ajaykumar-drb.github.io- Python
- Algorithms
Education1
Bachelor of Engineering
2018 — 2022K.L.N. College of Engineering
Mechanical Engineering
Certifications2
MERN Stack Web Development Bootcamp
2024GUVI Zen
SQL Certification
2023HackerRank