Open to opportunities

Ayush Koolwal

@ayushkoolwal

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Software Engineer (SDE-1) specializing in Node.js, MERN, and scalable backend systems.

India

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What I'm looking for

I seek backend or full-stack roles where I can build scalable, secure systems, work with modern stacks and cloud (AWS), and grow in system design and performance.

I am a Software Engineer (SDE-1) with 2.9 years of hands-on experience building scalable backend systems using Node.js, TypeScript, Express, and MongoDB. I focus on secure, high-performance REST APIs, transaction systems, and admin tooling, emphasizing clean, maintainable code.

At OneVerse Gaming Technologies, I built a complete backend ecosystem for an admin panel and website, implemented JWT authentication with dynamic role-based access control, and designed APIs for gameplay, transactions, KYC verification, and contest management. I optimized performance using data-structures-and-algorithms principles, reducing latency by 20% and improving concurrency handling.

Previously at Xebia, I contributed to five major product releases, improved code quality through reviews, and used profiling tools to achieve 20% faster response times. I value collaboration, thoughtful system design, and continuous improvement through testing, CI/CD, and cloud deployment on AWS.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (SDE-1)

Current

OneVerse Gaming Technologies Pvt. Ltd.

Feb 2024 - Present (2 years 4 months)

Built a complete backend ecosystem for admin panel and website using Node.js, TypeScript, Express, and MongoDB; implemented JWT-based RBAC and scalable REST APIs for gameplay, transactions, KYC, and contest management, reducing latency by 20%.

Node TypeScript Express MongoDB REST APIs JWT Scalability Performance Optimization

Software Engineer

Xebia

Jan 2023 - Feb 2024 (1 year 1 month)

Contributed to five major product releases, improved code quality through reviews (code quality +20%), and optimized performance to achieve 20% faster response times across modules.

JavaScript Code Review Performance Profiling REST APIs Unit Testing CI CD Microservices Git

Education

Degrees, certifications, and relevant coursework

Amity University

Bachelor of Technology, Computer Science

2019 - 2023

Grade: 8.2 GPA

Completed a B.Tech in Computer Science covering data structures, algorithms, operating systems, DBMS, and computer networks with a focus on problem solving.