Open to opportunities

Shivansh Agarwal

@shivanshagarwal1

Message

Backend-focused developer building scalable APIs and workflow automation for real-world products.

India

Message

What I'm looking for

I’m looking for a backend-focused role where I can build scalable APIs, improve reliability, and automate workflows—using Java/Spring and FastAPI—to deliver measurable performance gains and a strong engineering culture.

I’m a backend-focused full-stack developer who builds reliable services with Java/Spring Boot and FastAPI, pairing clean API design with performance and stability. I’ve worked across learning platforms, healthcare workflow automation, and real-time AI streaming experiences.

In freelance work, I designed backend APIs for users, courses, payments, videos, and learning content management, and I optimized content-fetching and video-access flows to reduce loading time by 20%. I also improved backend architecture, validation, and error handling—cutting system error rates by 30% during high-traffic sessions.

I also implemented 15+ client-specific healthcare automation workflows, debugging 50+ workflow issues and improving processing rates by 25–30%. Earlier, I delivered production-ready Java/Spring backend systems (99.99% uptime), migrated MySQL to a sharded architecture for higher write throughput, and developed secure REST APIs using JWT authentication.

Experience

Work history, roles, and key accomplishments

AI Full Stack Developer

MarConPra TM / DainikBhaskar.ai

Mar 2026 - May 2026 (2 months)

Designed and developed backend APIs for courses, payments, and learning content management using FastAPI and Clerk authentication. Built scalable payment and multimedia workflows and optimized content-fetching/video-access flows to improve loading time and reliability during peak usage.

Fastify fastAPI Python Clerk Authentication Video Content Management Workflow Automation Performance Optimization Error Handling REST APIs WebSockets React Native Expo LLM Tone Classification Real Time Updates Speech Streaming Backend AssemblyAI Audio Pipelines

Implementation Engineer

Tennr

Dec 2025 - Mar 2026 (3 months)

Implemented healthcare automation workflows across multiple client environments, improving referral processing efficiency and reducing processing errors. Built JSON-based workflows with conditional logic and performed log-based debugging to resolve workflow failures and stabilize processing rates.

Workflow Automation JSON Log Analysis Debugging Conditional Branching Error Resolution System Integration Healthcare Automation data transformation

Application Developer

MarConPra TM

Oct 2025 - Dec 2025 (2 months)

Architected a FastAPI and WebSocket backend to stream speech, AI responses, and real-time updates for product demos. Integrated AssemblyAI transcription with LLM tone classification and built multi-role conversation flows in a React Native/Expo console.

fastAPI WebSockets React Native Expo AssemblyAI LLM Tone Classification

Application Dev → AI Full Stack Dev

MarConPra TM / DainikBhaskar.ai

Oct 2025 - Dec 2025 (2 months)

Designed backend APIs for users, courses, payments, videos, live lectures, recordings, and learning content management using Fastify/FastAPI and Python with Clerk authentication. Built FastAPI/WebSocket services for streaming speech and AI responses and optimized content access and AI processing pipelines for reduced loading and processing time.

Fastify fastAPI Python Clerk Authentication Backend Payments Video Streaming WebSockets React Native Expo AssemblyAI LLM Tone Classification

Backend Developer

Euonus IT

Jan 2025 - May 2025 (4 months)

Built server-side applications using Java and Spring to improve uptime and reduce response times under peak traffic. Transitioned a legacy MySQL database to a sharded architecture and implemented REST APIs with Spring Boot to improve latency and scalability.

Java Spring Framework Spring Boot MySQL Query Optimization REST APIs Performance Optimization

Full Stack Developer Intern

Euonus IT

Jan 2025 - May 2025 (4 months)

Built server-side applications with Java and Spring to improve uptime and reduce response time under peak load. Implemented REST APIs with Spring Boot and migrated a legacy MySQL database to a sharded architecture to increase write throughput and scalability.

Java Spring Framework Spring Boot REST APIs MySQL API Development Performance Optimization

Web Developer Intern

Indian Institute of Technology Jammu

May 2023 - Jul 2023 (2 months)

Developed an immersive 3D portfolio using JavaScript, React, and Vite to increase user session duration. Worked on backend projects including a job portal with JWT authentication and REST APIs for payment/contact management using Spring Boot and MySQL.