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Professional Summary

Results-driven Backend Engineer with strong expertise in Spring Boot, microservices architecture, and cloud deployment. Proven track record of architecting 8+ production-grade systems handling 10K+ concurrent users. Skilled in database optimization with 35-40% performance improvement and designing secure authentication systems. Passionate about building scalable, maintainable, and cost-efficient backend architectures using Java, PostgreSQL, and AWS.

Technical Skills

Programming Languages

JavaPythonC++

Backend Frameworks

Spring BootSpring SecuritySpring AIREST APIsMicroservices

Databases & Caching

PostgreSQLMySQLRedisQuery Optimization

DevOps & Infrastructure

DockerAWS EC2AzureCI/CD PipelinesLinux

Professional Experience

Backend Developer & Project Lead

2023 – Present

University Projects | Dhaka, Bangladesh

  • Architected and delivered 8 backend systems using Spring Boot, serving 10K+ concurrent users with PostgreSQL, Redis, and Docker on AWS EC2.
  • Optimized database queries by 35-40%, successfully reducing API response times from 2s to 500ms through strategic indexing and caching mechanisms.
  • Designed and implemented microservices architecture featuring REST APIs with JWT-based authentication and RBAC.
  • Deployed dockerized applications establishing CI/CD pipelines and automated testing, achieving 80%+ code coverage.
  • Mentored junior developers on best practices and conducted peer code reviews.

Key Projects

StayMate

Hostel Booking Platform

Built scalable REST API achieving 45% faster queries. Implemented property filtering, secure payments, and real-time syncing.

Spring BootPostgreSQLRedisAWS

AI Customer Support

Chatbot & Ticket System

Integrated OpenAI for intelligent responses with fallback to human tickets. Analytics dashboard for resolution rates.

Spring BootSpring AIOpenAIPostgreSQL

Hospital Management

Patient System

Complex appointment scheduling and billing with RBAC. Automated doctor availability logic and email notifications.

Spring BootMySQLJWTRBAC

Expense Tracker

Personal Finance App

Transaction CRUD, analytics, and budget alerts with <100ms response time. Recurring transaction automation.

Spring BootPostgreSQLJWT

Education

B.Sc. in Computer Science & Engineering

United International University, Dhaka

Expected 2027

Coursework: Database Systems, Software Engineering, Data Structures, Microservices Architecture