Sawan Kumar

Product Manager

Bengaluru, Karnataka, India0 mo experience

Key Highlights

Designed 15+ RESTful APIs for high concurrency.
Improved API response time by 30% through optimization.
Top 15% in competitive programming with 500+ problems solved.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer in Fintech with expertise in scalable systems.

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Skills

Core Skills

JavaSpring Boot

Other Skills

REST APIsJWTMongoDBReactReduxChart.jsNode.jsExpress.jsReact.jsDockerAWS EC2PythonLangChainFAISSRAG

About

I build production-grade backend systems and AI-powered applications — from high-throughput REST APIs to LLM pipelines that solve real problems. Skills: Java, Spring Boot, Node.js, Express.js, React.js, REST APIs, JWT, MongoDB, MySQL, PostgreSQL, Docker, AWS EC2, Python, LangChain, FAISS, RAG, LLMs, System Design, DSA At my current internship, I designed 15+ RESTful APIs supporting 1,000+ concurrent users, improved API response time by 30% through indexing and query optimization, and built an admin reporting system that cut manual workflows by 25%. Beyond backend, I've shipped a full-stack RAG-based resume analysis platform (Python, LangChain, FAISS), a multi-role e-commerce system with Razorpay integration (React + Spring Boot + MySQL), and a CNN-based satellite image model trained on 20,000+ images. I'm comfortable across the stack — Java Spring Boot, Node.js, React, Python — and have working knowledge of Docker, AWS EC2, and CI/CD pipelines. 500+ DSA problems solved, top 15% in competitive programming. Currently open to Software Developer, Backend Engineer, and AI/ML Engineer roles. If you're building backend infrastructure or intelligent applications, let's connect.

Experience

0 mo

Total Experience

Average Tenure

Current Experience

Unique tutorarc pvt. ltd.

Software Developer

Dec 2024 – Aug 2025 · 8 mos · Delhi, India · Remote

Designed and shipped 15+ RESTful APIs for a stock trading simulation platform — covering order execution, trade history, analytics, and user management — supporting 1,000+ concurrent users with real-time portfolio updates.
Reduced API response time by 30% through database indexing, query refactoring, and caching strategies; cut average server latency by 0.7 seconds.
Implemented JWT-based authentication and role-based access control (RBAC) to secure sensitive trading endpoints across multiple user roles.
Built admin dashboards and automated reporting modules using Chart.js, improving operational efficiency by 25% and eliminating manual data workflows.
Integrated buy/sell simulations with smart stock search using React and Redux, improving user engagement by 20%.

JavaSpring BootREST APIsJWTMongoDBReact+2