Sumit Kumar

Software Engineer

Hyderabad, Telangana, India2 yrs 7 mos experience

Key Highlights

Built high-performance backend systems in Fintech.
Achieved significant optimizations in transaction processing.
Passionate problem solver with 1500+ LeetCode challenges solved.

Stackforce AI infers this person is a Backend Developer with expertise in Fintech and system optimization.

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Skills

Core Skills

JavaSpring Boot

Other Skills

Apache KafkaC++Coding ExperienceDockerGitGitlabGo (Programming Language)HTMLJiraKubernetesPostgreSQLPostmanProblem SolvingProgramming LanguagesRedis

About

I’m a Backend Developer with over 2 years of experience building scalable and efficient systems using Java and Spring Boot. My work is driven by a strong understanding of system design (LLD & HLD), design patterns, and data structures and algorithms. At Tata Consultancy Services, I’ve contributed to backend development projects involving asset and visitor management, event-driven architecture, focusing on performance optimization and clean, maintainable code. Beyond my professional work, I’m deeply passionate about problem-solving — having solved 1500+ challenges on LeetCode (Knight rank) — which reflects my persistence, analytical mindset, and love for continuous learning. I’m currently exploring new opportunities where I can contribute to impactful backend systems, learn from talented teams, and grow into a strong system design engineer.

Experience

Techmojo solutions

Member of Technical Staff

Nov 2025 – Present · 4 mos · Hyderabad, Telangana, India

JavaSpring BootRedisPostgreSQLDockerKubernetes+2

Tata consultancy services

System Engineer

Aug 2023 – Nov 2025 · 2 yrs 3 mos · Mumbai, Maharashtra, India

Working on a fintech and banking project for State Bank of India (SBI), focused on scalable backend development, API integrations, and performance optimization in a microservices-based architecture.
Key Highlights:
Built RedisBloom-based uniqueness system: 5x faster lookups, 3x throughput, 80% less memory, scaled to 10M+ usernames.
Reduced transaction time by 40% via PostgreSQL query & index optimization.
Integrated Spring Cloud Gateway for 15+ microservices; cut latency by 25%.
Developed Data Reusability API enabling 80% dataset reuse, reducing storage by 20%.
Tech Stack: Java, Spring Boot, Redis, PostgreSQL, Docker, Kubernetes, Git, Postman