Hello, I'm Sephin

Java Developer | Problem Solver

About Me

Sephin George

I am a Senior Java Developer with over 9 years of experience, specializing in building and deploying microservices using industry-standard technologies. My expertise in Java, Spring, and related frameworks enables me to develop high-quality, scalable, and maintainable solutions tailored to client needs. Beyond development, I have hands-on experience in cloud infrastructure configuration, release upgrades, and optimizing deployment workflows. While I have a working knowledge of DevOps, UI development, and IaaS, my core strength lies in backend application development. I am always eager to learn, adapt, and enhance my skills, particularly in emerging technologies like AI. A proactive team player, I continuously seek ways to improve processes and drive efficiency. Passionate about staying ahead of industry trends, I thrive on tackling new challenges and contributing to impactful projects.

Technical Skills

  • Java
  • Spring Boot
  • Microservices
  • AWS
  • Docker
  • Kubernetes

Professional Experience

Specialist - Java Developer

Nasdaq

2024 - Present

  • Development work on the clearing product, including client-specific customizations
  • Active participation in development, cloud environment configuration, and setup
  • Involvement in release upgrade activities to ensure smooth deployments

Senior Java Developer

Accenture

2021 - 2024

  • Developed a configuration-driven framework for report generation, utilizing AWS EventBridge, Lambda, and SES for data export and email delivery
  • Developed a hash function-based identifier shortening mechanism for payment transactions.
  • Created an in-house solution for IBAN validation, leveraging Redis cluster with sentinel configuration for caching and scalability.
  • Implemented certificate-based authentication for secure access to external APIs, minimizing the risk of unauthorized access and data breaches.

Java Developer

TCS

2015 - 2021

  • Developed and maintained Spring Batch applications to process large files, achieving a 50% performance improvement with multi-threading and parallel processing
  • Developed a Java agent for real-time analysis of user behavior and application responses, uncovering new code execution paths resulting from unexpected user behavior not covered by existing test cases.

Latest Blog Posts

Building Websites with Windsurf AI

May 18, 2025 7 min read

Learn how Windsurf AI can help you create professional websites quickly and efficiently, from project setup to responsive design.

Spring Boot Performance Optimization

May 10, 2025 6 min read

Explore various techniques to optimize Spring Boot applications for better performance, including database optimization, caching strategies, and monitoring tools.

Contact Me