Subha Saurav Swain
Software Engineer
Summary
Dynamic Java Backend Engineer with over 1.6 years of experience in developing robust Spring Boot microservices and REST APIs for high-availability, low-latency systems. Proficient in production debugging and Root Cause Analysis (RCA), with a strong focus on performance optimization across SQL and persistence layers, including indexing, query tuning, caching, and pagination. Expertise in scalable service design utilizing event-driven workflows with Kafka and distributed caching strategies using Redis. Skilled in deploying and managing containerized services on AWS (EC2/S3/CloudWatch) with CI/CD automation through GitLab CI, while ensuring engineering excellence through comprehensive unit testing (JUnit/Mockito), static analysis (SonarQube), and Agile-Scrum methodologies.
Overview
2
2
years of professional experience
2
2
Certifications
Work History
Software Engineer
Azentio Software Pvt Ltd.
01.2025 - Current
- Engineered scalable microservices using Java 11 + Spring Boot, implementing Kafka for async processing of transaction audit logs and notifications to decouple core banking modules.
- Built high-performance, idempotent REST APIs with Hibernate/JPA, implementing API pagination and Redis (cache-aside) to reduce Oracle load and improve response time by 33%.
- Deployed Dockerized services on AWS EC2; utilized S3 for secure object storage and CloudWatch for application logs, alarms, and performance monitoring.
- Ensured transactional consistency and data integrity using Spring @Transactional, applying appropriate isolation levels for critical ledger operations.
- Owned features end-to-end (design → build → test → release) via GitLab CI pipelines, delivering 8+ major functional enhancements.
- Resolved 30+ critical production issues via Root Cause Analysis (RCA); maintained high code quality with JUnit/Mockito and SonarQube
Software Engineer
Alchemy Techsol India pvt Ltd.
11.2024 - 01.2025
- Developed and implemented core backend services and REST APIs using Spring Boot, facilitating seamless data exchange between financial dashboards and Oracle databases.
- Implemented JWT-based auth with Spring Security for distributed service endpoints to ensure secure authentication and authorization.
- Contributed to migrating selected legacy SOAP services to REST, improving API interoperability and reducing payload overhead for downstream systems.
- Utilized Git and Maven for version control and dependency management, collaborating within an Agile-Scrum team to meet high-priority delivery timeline
Intern Engineer
Techlmaginia Software Pvt Ltd
01.2024 - 07.2024
- Supported the backend development of the MY-PG.in e-commerce platform by building and integrating 20+ REST API endpoints using Java, Spring Boot, and JPA (MySQL).
- Contributed to database optimization by refining MySQL join queries and data access layers, resulting in a 25% improvement in data retrieval speeds for product catalogs.
- Assisted in improving system reliability through the authorship of 50+ JUnit and Mockito test cases, which identified and resolved 30+ bugs and increased code coverage from 45% to 68%.
- Facilitated API interoperability by assisting in the integration of third-party SOAP and REST services for payment gateway and notification modules, handling JSON and XML parsing. .
Education
Bachelor of Technology - Computer Science and Engineering
Vellore Institute of Technology (VIT)
04.2001 -
12th -
D.A.V. Public School
01.2019
10th - undefined
D.A.V. Public School
01.2017
Skills
Java(8/11/17)
JavaScript
SQL
NoSQL
HTML
CSS
Spring Boot
Spring Framework
Spring MVC
Spring Security
Hibernate
JPA
Oracle
Redis(Cache-aside)
Apache Kafka
INTERNSHIP
Software Development Engineer (Intern) | TechImaginia Softwares Pvt. Ltd. (Jan 2024 – July 2024) Key Result Areas: Supported backend development of the MY-PG.in e-commerce platform, catering to over 1,000 monthly users. Built and deployed 20+ REST API endpoints with Spring Boot and Oracle Database, enabling payment processing and user account management. Resolved 30+ bugs and authored 50+ JUnit test cases, increased code coverage from 45% to 68%. Operated within an agile development framework across 8 sprint cycles, contributed to daily standups and sprint planning alongside a 5-member team. Led the implementation of SLF4J logging across 15+ service classes to enhance traceability and streamline debugging in production environments.
CORE COMPETENCIES
- Backend Development
- Java Development
- Database Management
- API Design & Integration
- Unit Testing
- Enterprise Application Development
- System Performance Tuning
- Full-stack Development
- Performance Optimization Technique
- WebServices Integration SOAP/REST
Certification
Advanced Java Programming Certification - Java Technocrat (2023)
Timeline
Software Engineer
Azentio Software Pvt Ltd.
01.2025 - Current
Software Engineer
Alchemy Techsol India pvt Ltd.
11.2024 - 01.2025
Intern Engineer
Techlmaginia Software Pvt Ltd
01.2024 - 07.2024
Bachelor of Technology - Computer Science and Engineering
Vellore Institute of Technology (VIT)
04.2001 -
10th - undefined
D.A.V. Public School
12th -
D.A.V. Public School