Ajith Kumar A
Chennai
Summary
Results-driven Java Backend Developer with 5 years of experience in building and maintaining scalable enterprise applications using Spring Boot, REST APIs, and microservices. Experienced in agile development, code optimization, security remediation, and delivering high-quality solutions. Skilled in leveraging AI technologies to improve application performance and drive innovation.
Overview
5
5
years of professional experience
Work History
Senior Software Engineer
HCL - CISCO(Client)
Bangalore
09.2025 - Current
- UBA (User Behavior Analytics) – Data Engineering Project
- Contributed to a data engineering maintenance project by upgraded dependencies (JARs), fixed production bugs, improved automated unit test coverage and on-call client support.
- Demonstrated rapid learning and ownership, contributing effectively to the successful release of UBA version 5.4.5.
- Understood the UBA application and took complete ownership. Currently working as a lead for UBA 5.4.6 release tasks and ensuring timely delivery.
Software Engineer 2
FIS Global (Fidelity Information Solutions)
Chennai, India
07.2021 - 09.2025
- Driving License ID Integration for SAS Applications (Spring Boot Microservice): Designed and developed a standalone Spring Boot microservice to support Driving License (DL) scanning and automated customer verification for a monolithic SAS application. Implemented RESTful APIs to receive Base64-encoded DL images from the SAS UI/backend and integrated with the Accuant verification service for real-time identity validation. The microservice processed customer verification responses, including customer name and demographic details, and sent the validated data back to the SAS application to enable automatic field prefilling during customer onboarding and KYC workflows. Worked closely with the Architect to deliver the solution within tight timelines, significantly reducing manual data entry and improving onboarding efficiency.
- Vulnerability remediation for all SAS Apps: Successfully remediated vulnerabilities across all SAS applications—including APT, Checkmarx and CX-1 issues—to achieve PCI certification, a critical requirement for production releases.
- Java and 3rd Party Jars upgrades: Upgraded Java and several outdated third-party JARs to newer versions, which required extensive code modifications.
- Defect fixes and Maintenance for SAS: Independently delivered the majority of defect fixes and minor enhancements across all 8 SAS applications, ensuring zero impact on existing functionality.
- Proactively handled Fly-in Tasks and Environment Troubleshooting
Education
B.E. - Computer Science And Engineering - CGPA:7.85
Vel Tech High Tech Engineering College
Chennai, India06-2021
Skills
- Java
- Spring Boot
- Microservices
- Rest API
- Agile
- Maven
- DOCKER & KUBERNETES
- JSP
- SQL
- AWS
- AI - RAG
- LangChain4j
- MCP
ACHIEVEMENTS
-> Received the company’s Star Award for successfully completing the critical Driving License Integration project.
-> Hackathon Project –AI-Powered RAG Pipeline Development: Built a RAG pipeline using Spring Boot, LangChain4j, and pgvector to enhance Splunk Cloud’s AI assistant with semantic search over 500+ internal runbooks and incident reports, improving domain-specific query accuracy from ~60% to 95%.
ROLES AND RESPONSIBILITIES
-> Managed full application development lifecycle, including gathering requirements, designing, coding, testing, database management, deployment and release.
-> Conducted unit testing and data validation and Extensive experience in documentation processes in accordance with industry standards.
-> Communicated with clients through daily/weekly calls and Scheduled & prioritized tasks effectively.
-> Demonstrated strong interpersonal, communication, analytical and problem-solving skills.
-> Active participation in Scrum calls, Iteration planning and review meetings, Risk mitigation plans, Project management calls and Client communication calls.
Accomplishments
- BitBucket
- Jenkins
- Source Tree
- Jfrog
- Postman
- Soap UI
- Winscp
- Putty
- Jira
- Cursor
Timeline
Senior Software Engineer
HCL - CISCO(Client)
09.2025 - Current
Software Engineer 2
FIS Global (Fidelity Information Solutions)
07.2021 - 09.2025
B.E. - Computer Science And Engineering - CGPA:7.85
Vel Tech High Tech Engineering College