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I am a passionate Fullstack Software Engineer with 4+ years of experience, specializing in Python, Flutter, React.js, and TypeScript. I build scalable applications, custom workflow engines, and high-performance APIs, with a strong focus on system integration, data migration, and code optimization. I enjoy solving complex technical challenges, collaborating with teams, and contributing to open-source projects.…I am a passionate Fullstack Software Engineer with 4+ years of experience, specializing in Python, Flutter, React.js, and TypeScript. I build scalable applications, custom workflow engines, and high-performance APIs, with a strong focus on system integration, data migration, and code optimization. I enjoy solving complex technical challenges, collaborating with teams, and contributing to open-source projects.

Vetrichelvan B

Back-End Developer, Front-End Developer, App Developer, +2

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I am a passionate Fullstack Software Engineer with 4+ years of experience, specializing in Python, Flutter, React.js, and TypeScript. I build scalable applications, custom workflow engines, and high-performance APIs, with a strong focus on system integration, data migration, and code optimization. I enjoy solving complex technical challenges, collaborating with teams, and contributing to open-source projects.…I am a passionate Fullstack Software Engineer with 4+ years of experience, specializing in Python, Flutter, React.js, and TypeScript. I build scalable applications, custom workflow engines, and high-performance APIs, with a strong focus on system integration, data migration, and code optimization. I enjoy solving complex technical challenges, collaborating with teams, and contributing to open-source projects.

Available to hire

I am a passionate Fullstack Software Engineer with 4+ years of experience, specializing in Python, Flutter, React.js, and TypeScript. I build scalable applications, custom workflow engines, and high-performance APIs, with a strong focus on system integration, data migration, and code optimization.

I enjoy solving complex technical challenges, collaborating with teams, and contributing to open-source projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Tamil

Fluent

Work Experience

Contract Software Engineer at Coframe

August 1, 2025 - September 23, 2025

Led end-to-end integration of Stytch authentication across a Python monorepo, automating organization provisioning in both Stytch and MongoDB, improving onboarding efficiency. Implemented a proof-of-concept to migrate static type checks from Pyright/Mypy to Pyrefly, reducing type-check latency by ~70%. Refactored and formalized role-based access control with granular permission checks at every service boundary, enhancing security and maintainability.

Full Stack Engineer - Freelance at Zudu Al

May 1, 2025 - September 23, 2025

Designed and implemented backend using FastAPI, SurrealDB, OpenAI Realtime SDK, Twilio, and Plivo; completed 70% of the communication server within 2-3 weeks. Built robust CRUD workflows for agent lifecycle management and dynamic phone number assignment, reducing manual setup by 80%. Integrated OpenAI Realtime SDK with Twilio and Plivo for bi-directional voice calls, achieving ~90% transcription-to-response accuracy and automated call flows.

Full Stack Engineer - Contract at Salval

January 1, 2025 - September 23, 2025

Modernized monolithic codebase into modular FastAPI subroutes with Pydantic for Azure Cosmos DB ORM. Migrated linting/formatting to Ruff, implemented pytest with 40% test coverage, built real-time call transcription with WebSocket and OpenAI TTS, and redesigned UI with transitions to boost retention.

Software Engineer at Lyric

July 1, 2024 - September 23, 2025

Engineered robust exception handling for APIs and scripts; led end-to-end workflow integration with Airbyte API, and built Airbyte connectors to enhance data integration. Improved multiple API services and testing strategies, boosting reliability and performance.

Backend Developer at Tekion

February 1, 2023 - September 23, 2025

Restructured Asset Tracking IoT project with FastAPI and Python to improve performance; developed high-performance CRM API; migrated data from MongoDB to MariaDB; implemented camera-based attendance management using MQTT; enhanced IoT asset management features.

Full Stack Engineer at Self-Employed

February 1, 2020 - Present

Spearheaded development of the Speakeasy App with advanced voice recording, transcription, pronunciation guidance, and seamless API integration. Developed custom Flutter widgets and Python-based data tools to improve performance and enable data-driven decisions. Implemented secure authentication with Firebase and social logins, and built APIs for translating Google Sheets data to FastAPI workflows.