Kishor Sarkar
Full Stack Engineer & Software Architect
Professional Summary
I'm a full-stack software engineer with 5 years of hands-on experience designing and shipping production systems — from greenfield SaaS platforms to complex enterprise migrations. My work sits at the intersection of engineering excellence and product thinking. I don't just build features; I architect outcomes.
Work Experience
Senior Full Stack Engineer
Global Tech Solutions
Leading frontend and backend architecture for a B2B SaaS platform serving 25,000+ monthly active users.
- Architected a multi-tenant Next.js 14 application with role-based access and SSO integration.
- Reduced page load time by 62% by migrating to React Server Components and optimizing bundle splits.
- Built a real-time notification system using WebSockets and Redis Pub/Sub.
- Mentored 4 junior engineers on TypeScript, testing, and code review best practices.
Full Stack Developer
Innova Digital
Delivered end-to-end web products for mid-market clients across fintech, edtech, and logistics sectors.
- Engineered a real-time logistics tracking dashboard using WebSocket, Mapbox GL, and PostgreSQL.
- Built payment orchestration layer integrating Razorpay, Stripe, and PayU with 99.9% uptime.
- Implemented CI/CD pipelines on GitHub Actions reducing deployment cycle from 3 hours to 18 minutes.
- Achieved 96+ Lighthouse score across all client projects through performance budgeting.
Frontend Developer
CodeCraft Agency
Built responsive, conversion-optimized marketing and product interfaces for early-stage startups.
- Developed 15+ production React applications from Figma designs.
- Integrated REST and GraphQL APIs with robust error handling and loading states.
- Maintained 95%+ test coverage using Jest and React Testing Library.
Education
Bachelor of Computer Application (BCA)
University of Calcutta · Kolkata, IN
First Class
References available upon request · Contact me