Kunal Chakraborty
BACKEND DEVELOPER
Leiden,Zuid Holland
Summary
Experienced IT professional with 10 years across backend development and software quality engineering. In the last 5+ years, focused on building scalable Java backend systems, while leveraging prior QA expertise to deliver reliable, high-performance solutions. Strong skills in Java, Spring Boot, REST APIs, relational databases, and cloud-native deployments. Proven ability to take ownership of backend services from design to deployment, with hands-on experience in CI/CD pipelines, containerization, and microservices architecture.
Overview
10
10
years of professional experience
1
1
Language
Work History
IT Specialist (Backend Developer)
TRANSAVIA
Amsterdam
05.2023 - Current
- Designed and developed Spring Boot microservices with RESTful APIs
- Implemented database schemas and queries using Hibernate with MySQL for operational efficiency.
- Leveraged Maven/Gradle, Git, and Jenkins to enable build automation, version control, and CI/CD deployment pipelines.
- Conducted unit and integration testing with JUnit and Postman to ensure reliability and maintainability.
- Integrated services with Azure API Management and NGINX gateways for secure API exposure and routing.
Java Backend Developer
Freelancer
12.2019 - 05.2023
- Built Spring Boot microservices for scalable applications, exposing secure REST endpoints.
- Optimized relational database operations with Hibernate, MySQL, and PostgreSQL.
- Configured CI/CD pipelines with Jenkins and Git for continuous deployment.
- Worked with Azure API Gateway and NGINX to manage API traffic and exposure.
Software Engineer
BACKBASE INDIA LLP
Hyderabad
08.2022 - 05.2023
- Collaborated with clients to gather backend requirements and translate them into scalable Java solutions.
- Implemented clean, maintainable code following OOP principles and design patterns in backend modules.
- Contributed to bug fixing, release management, and incident handling for production systems.
- Improved test coverage for backend components, ensuring robust functionality across microservices.
Test Automation Engineer Senior Analyst
ACCENTURE SOLUTIONS PVT. LTD.
Hyderabad
12.2019 - 07.2022
- Took initiative to transition from automation to backend engineering, contributing to the design and development of Java-based microservices in the Ecommerce domain.
- Built and optimized REST APIs using Spring Boot and Java, enabling secure transaction validation and reconciliation workflows.
- Designed SQL queries in PostgreSQL/MySQL to handle high-volume payment data.
- Developed test automation frameworks in parallel, ensuring end-to-end validation of backend services.
- Collaborated with cross-functional teams to integrate services into CI/CD pipelines using Jenkins and Azure DevOps.
- Mentored junior engineers on Java coding best practices and automation strategy.
Test Analyst (Java Automation & Backend Support)
INFOSYS LTD.
Pune
11.2015 - 10.2019
- Developed and maintained Java-based frameworks for web and mobile applications in cards & payments domain.
- Enhanced backend data validation by implementing SQL queries and stored procedures in PostgreSQL/MySQL.
- Maintained CI/CD pipelines and resolved failures, ensuring smooth test and deployment cycles.
- Collaborated with developers to identify and resolve backend defects early in the SDLC.
Education
Bachelor of Technology - Computer Science Engineering
Dehradun Institute of Technology
Dehradun 04.2001 -
Skills
Java
Spring Boot
Hibernate
Postgresql
MySQL
Git
Maven/Gradle
CI/CD Pipelines (Azure & Jenkins)
JavaScript
HTML
Interests
Gym & Fitness, Cooking, Travelling
Timeline
IT Specialist (Backend Developer)
TRANSAVIA
05.2023 - Current
Software Engineer
BACKBASE INDIA LLP
08.2022 - 05.2023
Java Backend Developer
Freelancer
12.2019 - 05.2023
Test Automation Engineer Senior Analyst
ACCENTURE SOLUTIONS PVT. LTD.
12.2019 - 07.2022
Test Analyst (Java Automation & Backend Support)
INFOSYS LTD.
11.2015 - 10.2019
Bachelor of Technology - Computer Science Engineering
Dehradun Institute of Technology
04.2001 -