RAJ KUMAR DUTTA
Backend Developer | Scalable Microservices | Kafka | Spring Boot
Bengaluru
Summary
Backend Engineer with 4+ years of experience designing and delivering high-performance, fault-tolerant microservices for e-commerce, fintech, and enterprise domains. Proven track record of reducing API latency by up to 40%, scaling distributed systems to millions of transactions/day, and implementing event-driven architectures using Kafka & Saga Orchestration. Adept in Java 8/17, Spring Boot, PostgreSQL, GCP, and cloud-native DevOps.
Overview
5
5
years of professional experience
Work History
Senior Analyst (Backend Developer)
Accenture
09.2024 - Current
- Engineered global e-commerce backend using Spring Boot & PostgreSQL, cutting API latency by 40% and improving checkout reliability.
- Designed and led development of an event-driven order processing platform with Kafka & Saga orchestration, achieving 99.99% uptime.
- Integrated SonarQube into Azure DevOps CI/CD pipelines, reducing code smells by 40% and enforcing clean code standards across the team.
- Collaborated with cross-functional teams to optimize database queries and service design, improving throughput by 30% during peak loads.
Cloud Application Consultant
OpenText
11.2021 - 07.2024
- Built and deployed scalable backend microservices for healthcare, insurance, and public transport domains, serving multi-million user bases.
- Implemented Kafka for real-time ETL streaming, cutting data processing times from hours to seconds.
- Enhanced backend responsiveness with caching layers (Redis) and asynchronous event handling.
- Designed & documented RESTful APIs with Swagger, improving onboarding speed for new developers by 25%.
- Mentored 3+ junior engineers in Spring Boot & microservices best practices.
Software Engineer
Test Yantra
10.2020 - 10.2021
- Delivered microservice-based policy & claims management system with GCP Pub/Sub & EhCache, enabling secure, sub-second insurance claim processing.
- Developed automated JUnit test frameworks to boost test coverage by 35%.
- Implemented RBAC and JWT authentication, enhancing system security for sensitive financial transactions.
Education
B.Tech - Computer Science & Engineering
Asansol Engineering College (MAKAUT)
Asansol, West Bengal07.2019
Skills
Languages: Java 8/17, Kotlin
Frameworks: Spring Boot, Spring Cloud, JPA, Resilience4j
Tools: Azure DevOps, Docker, Jenkins, GitHub, SonarQube, Postman, Datadog, New Relic, JWT, RBAC, Swagger, REST APIs, Maven, Data Structures and Algorithms, IntelliJ
Platforms: GCP
Databases & Caching: Postgres DB, Redis, Datastore, EhCache, SQL
Messaging & Architecture: Apache Kafka, GCP Pub/Sub, Microservices
Timeline
Senior Analyst (Backend Developer)
Accenture
09.2024 - Current
Cloud Application Consultant
OpenText
11.2021 - 07.2024
Software Engineer
Test Yantra
10.2020 - 10.2021
B.Tech - Computer Science & Engineering
Asansol Engineering College (MAKAUT)