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I am a highly skilled JavaScript developer with deep expertise in React.js and Next.js. I build scalable microservices and optimize high-performance APIs using Node.js and NestJS. I am passionate about maintainable, data-heavy applications and performance optimization. My experience spans frontend and backend development, cloud platforms, and modern architecture patterns. I have delivered high-traffic systems for gaming and fintech projects, using PostgreSQL, MongoDB, Redis, AWS, and CI/CD pipelines to drive reliability and efficiency.…I am a highly skilled JavaScript developer with deep expertise in React.js and Next.js. I build scalable microservices and optimize high-performance APIs using Node.js and NestJS. I am passionate about maintainable, data-heavy applications and performance optimization. My experience spans frontend and backend development, cloud platforms, and modern architecture patterns. I have delivered high-traffic systems for gaming and fintech projects, using PostgreSQL, MongoDB, Redis, AWS, and CI/CD pipelines to drive reliability and efficiency.

Athul Rajk

Full Stack Developer, Back-End Developer, Web Developer, +2

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I am a highly skilled JavaScript developer with deep expertise in React.js and Next.js. I build scalable microservices and optimize high-performance APIs using Node.js and NestJS. I am passionate about maintainable, data-heavy applications and performance optimization. My experience spans frontend and backend development, cloud platforms, and modern architecture patterns. I have delivered high-traffic systems for gaming and fintech projects, using PostgreSQL, MongoDB, Redis, AWS, and CI/CD pipelines to drive reliability and efficiency.…I am a highly skilled JavaScript developer with deep expertise in React.js and Next.js. I build scalable microservices and optimize high-performance APIs using Node.js and NestJS. I am passionate about maintainable, data-heavy applications and performance optimization. My experience spans frontend and backend development, cloud platforms, and modern architecture patterns. I have delivered high-traffic systems for gaming and fintech projects, using PostgreSQL, MongoDB, Redis, AWS, and CI/CD pipelines to drive reliability and efficiency.

Available to hire

I am a highly skilled JavaScript developer with deep expertise in React.js and Next.js. I build scalable microservices and optimize high-performance APIs using Node.js and NestJS. I am passionate about maintainable, data-heavy applications and performance optimization.

My experience spans frontend and backend development, cloud platforms, and modern architecture patterns. I have delivered high-traffic systems for gaming and fintech projects, using PostgreSQL, MongoDB, Redis, AWS, and CI/CD pipelines to drive reliability and efficiency.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Work Experience

MERN Stack Developer at 9x Technology

February 1, 2024 - Present

Contributed to Node.js backend development across multiple projects focused on real-time data processing and performance optimization using third-party integrations. Designed and optimized backend systems for a Flutter project, reducing API calls by 30% and cutting database costs by $5K over 6 months. Identified and resolved critical security vulnerabilities and implemented a comprehensive logging system for real-time debugging. Enhanced website performance by 37% using code splitting, lazy loading, and caching strategies. Developed backend services for a high-traffic gaming platform handling over 10K daily users and built blockchain modules for a cryptocurrency trading platform using Ethers.js.

Node.js Developer at UITech Solution

January 31, 2024 - August 27, 2025

Designed and built backend systems for innovative web applications in a fast-paced environment. Collaborated with frontend teams and founders to develop scalable MVPs using modern JavaScript and clean architectural practices. Built secure and modular RESTful APIs for a digital game asset marketplace focusing on user wallets, inventory tracking, and transaction handling. Developed backend modules using Mongoose ODM for a hotel booking platform handling real-time room availability and booking workflows. Emphasized data modeling and API consistency for smooth frontend integration and rapid iteration.

MERN Stack Developer at 9x Technology

February 1, 2024 - Present

Contributed to Node.js backend development with a focus on real-time data processing and performance optimization. Designed and optimized backend systems for a Flutter project, reducing API calls by 30% and database costs by $5K over 6 months. Enhanced website performance by 37% through code splitting, lazy loading, and caching. Developed backend services for a high-traffic gaming platform handling 10K+ daily users and built blockchain modules for secure cryptocurrency transactions and portfolio management.

Node.js Developer at UITech Solution

January 31, 2024 - August 27, 2025

Designed and built backend systems for innovative web applications in a fast-paced environment. Collaborated with frontend teams and founders to develop scalable MVPs using modern JavaScript and clean architectures. Built secure and modular RESTful APIs for digital game asset marketplace including features like user wallets and transaction handling. Developed backend modules for hotel booking platform with real-time room availability and booking workflows, emphasizing data modeling and API consistency.

MERN Stack Developer at 9x Technology

February 1, 2024 - Present

Contributed to Node.js backend development across multiple projects, focusing on real-time data processing and performance optimization with third-party integrations. Achieved a 30% reduction in API calls and saved approximately $5,000 in database costs over six months. Implemented security enhancements and a comprehensive real-time logging and rollback system. Improved frontend–backend performance by 37% through code splitting, lazy loading, and caching strategies. Worked on a high-traffic online gaming platform (10K+ daily users) and a cryptocurrency trading platform, including integration of Ethers.js for secure transactions and portfolio management.

Node.js Developer at UITech Solution

January 31, 2024 - September 16, 2025

Designed and built backend systems for modern web applications in a fast-paced, product-driven environment. Collaborated with frontend teams to develop scalable MVPs using modern JavaScript and clean architectural practices. Key projects included MarketOfGames (Digital Game Asset Marketplace) with secure, modular RESTful APIs for user wallets, inventory tracking, and transactions, emphasizing clean architecture and extensibility for third‑party payment integrations; and iStay (Hotel Booking Platform) with backend modules using Mongoose ODM for real-time room availability, bookings, and user-generated content in MongoDB, focusing on data modeling and API consistency to streamline frontend integration and rapid iteration.