Suraj S Bhagat

Summary

Results-driven Backend Developer with 3.8 years of experience in building scalable applications using Java and Spring Boot. Expertise in designing microservices, developing RESTful APIs, and implementing distributed systems with Kafka and Redis. Focused on optimizing performance, securing applications with JWT and OAuth2, and deploying services using Docker and CI/CD pipelines.

Overview

years of professional experience

Work History

Java Backend Developer

HUDL India

Mumbai

07.2021 - Current

Designed and developed scalable microservices using Java and Spring Boot for high-traffic sports analytics platforms
Developed and maintained REST APIs for web and mobile applications, enhancing user access for thousands
Implemented asynchronous communication using Apache Kafka, improving system decoupling and throughput
Reduced API response time by ~30% using Redis caching and query optimization
Designed secure authentication and authorization mechanisms using Spring Security, JWT, and OAuth2 to protect user data
Enhanced system resilience with Resilience4j, implementing circuit breakers and retries for reliable third-party integrations
Worked on high-availability systems, ensuring minimal downtime during peak match traffic
Containerized services using Docker and automated deployments via Jenkins CI/CD pipelines
Collaborated with frontend teams (React/Angular) and participated in Agile ceremonies

Education

B.E. - Computer Engineering

Mumbai University

Mumbai, MH

06-2021

Skills

Languages:
Java (8/11), SQL, JavaScript (ES6)

Backend & Frameworks:
Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate, REST APIs

Databases & Storage:
MySQL, SQL Server, PostgreSQL (if used), Redis (Caching)

Distributed Systems & Messaging:
Apache Kafka, Microservices Architecture, Saga Pattern

Distributed Systems & Messaging:Apache Kafka, Microservices Architecture, Saga Pattern

Security & Authentication:
JWT, OAuth2, Role-Based Access Control (RBAC)

DevOps & Tools:
Docker, Jenkins, Git, GitHub, Maven

Testing & Debugging:
Mockito, Postman, Unit Testing

Concepts:
Data Structures & Algorithms, OOP, SOLID Principles, Design Patterns, REST API Design

Projects

Real-Time Core Banking Transaction Engine

Tech Stack: Java, Spring Boot, Apache Kafka, MYSQL, HikariCP

Developed high-throughput payment processing services for Peer-to-Peer (P2P) transactions and ledger updates
Implemented Saga Pattern to ensure data consistency across distributed microservices
Designed and optimized PostgreSQL schemas to handle high-volume transactions with strict ACID compliance
Integrated Apache Kafka for asynchronous event-driven communication between transaction, notification, and audit services
Improved system scalability using database sharding and connection pooling (HikariCP) for high-concurrency operations
Built secure APIs using Spring Security, JWT, and OAuth2 with role-based access control (RBAC)
Ensured exactly-once processing semantics, minimizing risk of duplicate or failed financial transactions

Hospitality Property Management System (PMS) API

Tech Stack: Java, Spring Boot, Redis, Resilience4j, Docker, Kubernetes, Jenkins

Architected a multi-tenant microservices platform supporting multiple hotel properties with data isolation
Built a real-time availability & inventory system using Redis caching to prevent overbooking during peak demand
Integrated external systems including OTAs (e.g., Expedia, Booking.com) and payment gateways
Implemented Resilience4j for circuit breaking and retries, improving system stability during third-party failures
Designed and documented APIs using OpenAPI (Swagger) for seamless frontend and partner integrations
Automated deployments using Docker, Kubernetes, and Jenkins, enabling zero-downtime releases
Improved system responsiveness and reliability under high traffic conditions

Timeline

Java Backend Developer

HUDL India

07.2021 - Current

B.E. - Computer Engineering

Mumbai University