Rezaul Khan

Associate Software Engineer

India 65 · Good

About

Software Engineer with 1+ year of hands-on experience in Java, Spring Boot, Spring Security, MySQL, and AWS. Skilled in designing scalable microservices, secure RESTful APIs, and database-driven backend systems following Agile and CI/CD practices. Passionate about writing clean, maintainable code and delivering high-performance, production-ready software.

Skills & Expertise

No skills listed yet

Work Experience

Associate Software Engineer

HatSynk Software Private Limited

July 2025 - Present

• Engineered scalable Java and Spring Boot microservices for restaurant and order management platforms, implementing secure business workflows with Spring Security and JWT, optimizing service-layer logic, and supporting Android applications through reliable RESTful APIs and MySQL-backed operations. • Diagnosed and resolved recurring API, database, and application-level issues through systematic log analysis, debugging, and root cause investigation, strengthening backend reliability and reducing production defects. • Designed, integrated & tested 20+ REST APIs (Postman) for authentication, restaurant, menu, seller dashboard & order management, enabling secure communication between Android clients and backend services, improving maintainability. • Optimized backend processing, SQL queries, and business workflows using Spring Data JPA to enhance application performance, improve data consistency, and support scalable service operations across multiple functional modules. • Collaborated with cross-functional teams using Git, GitHub Actions CI/CD, and Agile/Scrum methodologies to deliver production-ready features, participate in code reviews, and ensure high-quality software releases.