Open to opportunities

Sachin Kumar

@sachinkumar6

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Backend Engineer specializing in Node.js and DevOps automation.

India

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What I'm looking for

I am looking for opportunities in a collaborative environment that values innovation and offers growth in backend development and DevOps practices.

I am a dedicated Backend Engineer with a strong focus on Node.js and NestJS, complemented by my expertise in DevOps and automation. My journey in technology has been marked by a commitment to building high-performance, scalable systems that meet the needs of modern applications. I have a proven track record in designing RESTful APIs and optimizing databases, ensuring efficient data management and seamless user experiences.

Throughout my career, I have co-founded a self-driven trading venture where I developed automated trading systems that significantly reduced execution latency and improved trading accuracy. My experience extends to leading teams, mentoring junior developers, and implementing best practices in security and system design. I thrive in collaborative environments where continuous learning and practical solutions are valued.

Experience

Work history, roles, and key accomplishments

Co-Founder & Backend Engineer

Self-Driven Trading Venture

Jan 2023 - Present (2 years 5 months)

Developed and optimized automated order placement systems, reducing trade execution latency by 30-40% and ensuring fast, error-free execution. Designed and deployed machine learning models, improving trading accuracy by 20-25%, and optimized PostgreSQL queries, cutting data retrieval time by 40%. Led and mentored a team of 3 junior developers, cutting bug resolution time by 35%.

NestJS PostgreSQL Machine Learning API Development Microservices DevOps Team Leadership

Full Stack Software Developer

Audio Intakes

Sep 2021 - Present (3 years 9 months)

Built a React.js based audio interview platform using WebRTC and WaveSurfer, enabling smooth recording, playback, and storage of audio blobs. Developed secure RESTful APIs for user authentication and CRUD operations, while improving frontend performance and memory usage. Implemented unit and E2E testing to boost reliability and streamline deployment cycles.

React WebRTC RESTful APIs Frontend Development Unit Testing E2E JavaScript

Tech Intern

SpeEdLabs

Mar 2020 - Present (5 years 3 months)

Developed a full stack web application to integrate their products and enhanced the codebase for two MERN stack products, e-Kart and LIVE Classes. Optimized multiple login systems to improve user experience.

MERN Stack Full Stack Web Development MongoDB