UK
ProjectsExperience

Uttam Kumbhakar

Junior Backend Developer

Building scalable backend systems and secure APIs with clean code and attention to detail.

Uttam Kumbhakar
Open to work
Junior Backend Developer
Dhanbad (JH), India
blocksdev.pro
05:56 (Local)
mail@blocksdev.pro
he/him
GitHubLinkedInTwitterWebsite

About

Junior Backend Developer with hands-on experience building and deploying scalable APIs using FastAPI and NestJS. Skilled in authentication systems, PostgreSQL database design, and integrating third-party APIs like Pipedrive. Worked as part of a 4-person engineering team, contributing to a multi-tenant sales portal and deploying services on DigitalOcean. Passionate about backend engineering, automation, and continuously improving technical skills.

0contributions last year!
Less
More

Stack

FastAPI NestJS PostgreSQL JWT & OAuth 2.0 API Development DigitalOcean Backend Engineering Web3 Docker Git

Experience

Junior Backend Developer

March 2025 – August 2025
Async Integrations d.o.o. • Remote (Zagreb, Croatia)
  • Developed and maintained scalable REST APIs using FastAPI and NestJS.
  • Designed and optimized PostgreSQL schemas, queries, and migrations.
  • Implemented secure authentication flows including JWT and OAuth 2.0.
  • Integrated third-party services such as Pipedrive CRM into backend systems.
  • Deployed and managed backend applications on DigitalOcean infrastructure.
  • Built core backend modules for a multi-tenant sales portal platform.
  • Collaborated with a 4-person development team and participated in code reviews.

Projects

3
⚡
Production-ready background task library for FastAPI with Redis/Memory backends, smart retry logic, and distributed worker support. Built following SOLID principles with ~500 LOC.
  • ⚡ 10x faster than Celery for simple tasks
  • 📦 Zero dependencies in memory mode
  • 🔄 Exponential backoff retry mechanism
  • 📊 Real-time task monitoring & history
  • 🐳 Docker-ready with compose setup
  • 🎯 100% test coverage with pytest
PythonRedisAsync/AwaitTask QueueDocker
🥗
Snap photos of meals and get instant nutritional breakdowns. AI-powered platform converting visual data into macro feedback with smart journaling and analytics.
  • 📸 Instant food recognition from photos
  • 🤖 AI-powered macro calculation
  • 📊 Smart journaling with progress tracking
  • ⚡ Sub-2 second image analysis
  • 🔐 Privacy-first with local storage option
Next.jsFastAPIComputer VisionPostgreSQLOpenAI
💎
Fully automated Crypto Deposit & Webhook System built to solve limitations of existing gateways. Supports TRX and TRC-20 tokens with complete flexibility.
  • 💸 Real-time blockchain monitoring
  • 🔔 Instant webhook notifications
  • 🔐 HD wallet generation (BIP39/BIP44)
  • ⚡ Sub-second confirmation detection
  • 📈 99.9% uptime SLA
FastAPIBlockchainTron/TRC-20WebhooksRedis

Education

Binod Bihari Mahto Koyalanchal University

B.Com

Feb 2028 (Expected)

Languages

English

Basic

Hindi

Native
UK