Featured capability
API Development
Modular REST APIs with validation, filtering, pagination, documentation and third-party integrations.
GET /api/users
POST /api/auth
PATCH /api/users/:id
< Backend Developer />
I build dependable backend systems for real products.
Node.js, NestJS, TypeScript, PostgreSQL, MongoDB and Redis.
const
ideas =
realProducts();// Keep Building
Better Solutions< About Me />
Backend-focused.
Product-minded.
I'm a Backend Developer at KGN INFOTECH LLP, building production-ready APIs and systems using NestJS, TypeScript, PostgreSQL, MongoDB, Prisma and Redis. I also work with React and Next.js when end-to-end delivery is required.
At a glance
1+
Year of professional experience
4
Major production projects
Full-cycle
Build, deploy and support
Currently building production systems at KGN INFOTECH LLP
< About Me />
Backend-focused.
Product-minded.
Backend Developer building reliable APIs and production systems with NestJS, TypeScript, databases and Redis.
1+
Year of professional experience
4
Major production projects
Currently building production systems at KGN INFOTECH LLP
< Backend Capabilities />
What I Build
End-to-end backend development from API design to production deployment, focused on reliability, security and scale.
I work across the complete backend lifecycle—from designing data models and secure APIs to caching, background processing, integrations and production deployment.
Engineering approach
- Modular architecture
- Performance by design
- Production ownership
< Backend Capabilities />
What I Build
Backend systems designed for security, performance and production reliability.
Modular REST APIs with validation, filtering, pagination, documentation and third-party integrations.
GET /api/users
POST /api/auth
PATCH /api/users/:id
Secure authentication, token management and permission-based access.
JWT access tokens
Refresh-token rotation
PermissionsGuard
Reliable schemas, relationships, indexes and optimized database queries.
Prisma transactions
Compound indexes
Relation modelling
Caching and asynchronous processing for faster, reliable applications.
Redis cache keys
queue.add("email")
@Cron("0 * * * *")
Live communication, events, notifications and webhook workflows.
socket.emit("message")
Webhook handlers
Push notifications
External services connected through secure and maintainable APIs.
ZeptoMail
Cloudflare Turnstile
Pencil Spaces
Deployment, process management, logging and production support.
Nginx reverse proxy
PM2 process management
Docker services
< Experience />
Backend in practice.
Building and supporting real products from API design to production deployment.
01
KGN INFOTECH LLP
Backend Developer
Jul 2024 — PresentIndia
Building and maintaining production-ready backend services across EdTech, CMS and real-estate products.
- Built modular NestJS and TypeScript APIs for production products.
- Designed MongoDB and PostgreSQL models using Prisma.
NestJSTypeScriptPrismaMongoDB
02
TECHFLOW LABS
Backend Developer Intern
Jan 2024 — Jun 2024Remote
Worked with the development team to build secure APIs and improve application performance.
- Developed REST APIs using Node.js, Express and TypeScript.
- Added JWT authentication and role-based authorization.
Node.jsExpressTypeScriptMongoDB
03
INDEPENDENT PROJECTS
Freelance Full-stack Developer
Aug 2023 — Dec 2023Remote
Delivered small business applications from planning and development through deployment.
- Created responsive products using React and Next.js.
- Integrated email, payment and third-party API services.
Next.jsReactNode.jsPostgreSQL
< Projects />
Projects in production.
Real products where I worked on APIs, data flows, background processing and production delivery.
View all projects
EdTech Platform
< Selected Work />
Projects in production.
A selection of products built across education, CMS, real estate and publishing.
EdTech Platform
EduSphere
Backend Developer
A learning platform supporting classes, assignments, quizzes, recurring schedules and teacher workflows.
NestJSTypeScriptPrisma+3
View case study< Technical Skills />
Tools I use to build.
A backend-first toolkit shaped by production work, from data design to deployment.
Backend
Backend Development
Scalable server-side applications and maintainable APIs.
< Education />
Academic foundation.
Formal education that developed my programming fundamentals, technical thinking and approach to software engineering.
LearnBuildImprove
Master of Computer Applications
PostgraduateExample Institute of Technology
Software engineering, backend systems and databases.
2022 — 2024Odisha, India
Bachelor of Computer Applications
UndergraduateExample Degree College
Programming fundamentals and web application development.
2019 — 2022Odisha, India
Higher Secondary Education
Higher SecondaryExample Higher Secondary School
Mathematics, computer fundamentals and problem-solving.
2017 — 2019Odisha, India
< Education />
Academic foundation.
Education that shaped my programming and software development fundamentals.
Postgraduate
Master of Computer Applications
Example Institute of Technology
2022 — 2024
Undergraduate
Bachelor of Computer Applications
Example Degree College
2019 — 2022
Higher Secondary
Higher Secondary Education
Example Higher Secondary School
2017 — 2019
< Contact />
Let's build something reliable.
Have a backend role, project or technical challenge in mind? Send me a message.
Open to backend opportunities
Prefer email?
biswojitb474@gmail.com