Abhijeet Karmakar

Software Engineer

Bengaluru, Karnataka, India3 yrs 3 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Expert in modernizing legacy systems with Spring.
Achieved 20% performance boost in microservices.
Passionate about Generative AI solutions.

Stackforce AI infers this person is a Backend-heavy Fintech Engineer specializing in Java and Spring technologies.

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Skills

Core Skills

JavaSpring

Other Skills

Java 21Spring AIJakarta EEAOPSQL ServerApache SparkSpring WebFluxDockerKubernetesKafkaJava 17Spring BootAngularOracleShell Script

About

Experienced Software Engineer specializing in high-performance Java applications and system modernization. My expertise lies in the Spring ecosystem (Spring Boot, WebFlux, Spring AI) and building scalable, reactive systems using Kafka and microservices. At Sapiens, I am currently modernizing legacy services using the Strangler Pattern and resolving critical API performance issues. Previously at LTIMindtree, I led the migration of 10+ microservices to Spring Boot 3 and Java 17 and achieved a 20% performance boost by adopting Spring WebFlux. I have hands-on experience deploying to cloud-native environments like OpenShift and Kubernetes. I am passionate about applying Generative AI to solve developer-focused challenges. I designed and built an "Autonomous PR Review Agent" using LangGraph and a RAG pipeline to automate code quality and security vulnerability checks. Core Competencies: Languages: Java (Core, 17/21), Golang, Python, Shell Script Backend: Spring Boot, Spring WebFlux, Spring Security, Microservices, Jakarta EE AI/ML: Generative AI, RAG, LangGraph, LangChain, Spring AI Data & Messaging: Kafka (Reactive), Redis (Caching, Distributed Locks), SQL Server, Oracle DevOps & Cloud: Docker, Kubernetes, OpenShift, CI/CD, AWS, Git Observability: Prometheus, Grafana, Splunk, Profiling

Experience

3 yrs 3 mos

Total Experience

1 yr 6 mos

Average Tenure

2 mos

Current Experience

Visa

Senior Software Engineer

Mar 2026 – Present · 2 mos · Bengaluru, Karnataka, India · Hybrid

Sapiens

Developer

Apr 2025 – Feb 2026 · 10 mos · Bengaluru, Karnataka, India · Hybrid

Resolved API timeouts by implementing pagination, reducing latency to 500ms, and fixed 20+ critical bugs across Presentation Layer and Service Layer.
Modernized legacy services using the Strangler Pattern, introducing a microservice handling 40% of traffic, improving scalability and maintainability.
Automated comparative testing with Change Data Capture (CDC) and Aspect-Oriented Programming (AOP) across versions and databases.
Tech Stack: Java 21, Spring, Spring AI, Jakarta EE, AOP, SQL Server, Apache Spark

Java 21SpringSpring AIJakarta EEAOPSQL Server+2

Ltimindtree

Senior Software Engineer

Dec 2022 – Mar 2025 · 2 yrs 3 mos · India

Project: Netting Engine - Citi Bank (Nov 2024 - Mar 2025)
Configured CI/CD pipelines on Red Hat OpenShift for auto-build and on-demand deployment.
Implemented Reactive Kafka consumers and publishers for asynchronous messaging.
Added automated purge jobs using shell scripts to minimize DB storage.
Tech Stack: Java 21, Spring WebFlux, SQL Server, Docker, Kubernetes, Kafka

Java 21Spring WebFluxSQL ServerDockerKubernetesKafka+2

Lti - larsen & toubro infotech

2 roles

Senior Software Engineer

Oct 2022 – Nov 2022 · 1 mo

Project: Global Cash Management System - Citi Bank (Jun 2022 - Oct 2024)
Migrated 10+ microservices to Spring Boot 3 and Java 17, improving performance and resolving GeM violations.
Achieved 20% faster response time by migrating to Spring WebFlux.
Deployed API Gateway with Spring Cloud Gateway, enabling DDoS prevention and rate limiting.
Resolved 50+ critical issues, automated workflows using Autosys jobs and shell scripts.
Tech Stack: Java 17, Spring Boot, Angular, Oracle, Shell Script

Java 17Spring BootAngularOracleShell ScriptJava+1