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Hi, I'm Anuj Singh, a Full Stack JavaScript developer focused on building high-performance web applications, robust backend services, and efficient CI/CD pipelines. Over the years I’ve freelanced and built scalable microservices using Node.js, React, Next.js, and TypeScript. I enjoy optimizing system reliability and performance, collaborating across teams, and delivering scalable solutions that make a real impact.…Hi, I'm Anuj Singh, a Full Stack JavaScript developer focused on building high-performance web applications, robust backend services, and efficient CI/CD pipelines. Over the years I’ve freelanced and built scalable microservices using Node.js, React, Next.js, and TypeScript. I enjoy optimizing system reliability and performance, collaborating across teams, and delivering scalable solutions that make a real impact.

Anuj Singh

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

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Hi, I'm Anuj Singh, a Full Stack JavaScript developer focused on building high-performance web applications, robust backend services, and efficient CI/CD pipelines. Over the years I’ve freelanced and built scalable microservices using Node.js, React, Next.js, and TypeScript. I enjoy optimizing system reliability and performance, collaborating across teams, and delivering scalable solutions that make a real impact.…Hi, I'm Anuj Singh, a Full Stack JavaScript developer focused on building high-performance web applications, robust backend services, and efficient CI/CD pipelines. Over the years I’ve freelanced and built scalable microservices using Node.js, React, Next.js, and TypeScript. I enjoy optimizing system reliability and performance, collaborating across teams, and delivering scalable solutions that make a real impact.

Available to hire

Hi, I’m Anuj Singh, a Full Stack JavaScript developer focused on building high-performance web applications, robust backend services, and efficient CI/CD pipelines.

Over the years I’ve freelanced and built scalable microservices using Node.js, React, Next.js, and TypeScript. I enjoy optimizing system reliability and performance, collaborating across teams, and delivering scalable solutions that make a real impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

MERN Stack Developer at Asten Solution

November 1, 2024 - April 1, 2025

Built an AI-powered PDF/PPT text extraction tool using Claude API, improved data processing by 35%; achieved 30% faster load times and 15% higher SEO scores through Lighthouse optimization; implemented CI/CD workflows with GitHub Actions, Vercel & Netlify; reduced deployment cycles by 40%.

Full Stack Developer at Truck Mind

April 1, 2025 - November 1, 2025

Optimized web performance using Lighthouse, focusing on image formats to reduce large PNGs; created a user-friendly UI for Truck Mind and improved Lighthouse performance scores; prioritized and organized tasks to efficiently achieve service goals.

Freelance Full Stack Developer (Remote) at Freelance

November 1, 2025 - Present

Developed and scaled backend microservices for a US-based financial client; improved system reliability; built Node.js/TypeScript microservices with Jest tests; performed performance testing with NeoLoad; identified bottlenecks and improved throughput; collaborated via Git & GitLab; contributed to CI/CD pipelines; ensured confidentiality and compliance; contributed to migration from Angular v2 to Angular v2.0, modernizing legacy architecture; improved session management, exception handling, and application stability; implemented multi-language support (i18n) and environment-based configurations.