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I’m a full-stack developer who enjoys building reliable, high-performance products across web, mobile, and backend systems. I work mainly with React, TypeScript, Next.js, and Tailwind CSS on the frontend, and with Node.js, NestJS, and Go on the backend, while also delivering mobile apps using React Native, Swift, and Kotlin. I focus on performance and polish—things like faster load times, solid API design, and clean, maintainable architecture.…I’m a full-stack developer who enjoys building reliable, high-performance products across web, mobile, and backend systems. I work mainly with React, TypeScript, Next.js, and Tailwind CSS on the frontend, and with Node.js, NestJS, and Go on the backend, while also delivering mobile apps using React Native, Swift, and Kotlin. I focus on performance and polish—things like faster load times, solid API design, and clean, maintainable architecture.

Supinder Singh

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I’m a full-stack developer who enjoys building reliable, high-performance products across web, mobile, and backend systems. I work mainly with React, TypeScript, Next.js, and Tailwind CSS on the frontend, and with Node.js, NestJS, and Go on the backend, while also delivering mobile apps using React Native, Swift, and Kotlin. I focus on performance and polish—things like faster load times, solid API design, and clean, maintainable architecture.…I’m a full-stack developer who enjoys building reliable, high-performance products across web, mobile, and backend systems. I work mainly with React, TypeScript, Next.js, and Tailwind CSS on the frontend, and with Node.js, NestJS, and Go on the backend, while also delivering mobile apps using React Native, Swift, and Kotlin. I focus on performance and polish—things like faster load times, solid API design, and clean, maintainable architecture.

Available to hire

I’m a full-stack developer who enjoys building reliable, high-performance products across web, mobile, and backend systems. I work mainly with React, TypeScript, Next.js, and Tailwind CSS on the frontend, and with Node.js, NestJS, and Go on the backend, while also delivering mobile apps using React Native, Swift, and Kotlin. I focus on performance and polish—things like faster load times, solid API design, and clean, maintainable architecture.

Skills

Experience Level

Expert

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Intermediate

Language

English

Advanced

Work Experience

Consultant Software Developer at Technossus

September 1, 2025 - Present

Develop and maintain cross-platform mobile applications using React Native. Design and integrate AWS Lambda serverless functions for backend business logic and APIs. Work with PostgreSQL for schema design, optimized queries, and data integrity/performance. Collaborate with cross-functional teams to deliver features, troubleshoot production issues, optimize reliability and application performance, and support agile ceremonies. Conduct client meetings and product demos; participate in technical interviews and maintain coding standards through reviews and architectural decisions.

Freelancer

July 1, 2024 - July 31, 2025

Delivered end-to-end web and mobile applications for international clients. Built RESTful APIs using Node.js, Go, PostgreSQL, and JWT authentication. Developed responsive SPAs with React, TypeScript, and Tailwind CSS with mobile-first and accessibility considerations (WCAG). Built native iOS (Swift) and Android (Kotlin) apps with offline sync and push notifications, with an emphasis on scalability, performance optimization, and full-stack delivery.

Senior Software Engineer at Ajackus

January 1, 2024 - July 31, 2024

Collaborated with a global team to build scalable applications. Focused on code quality, consistency, and performance optimization. Improved the development lifecycle through automation and process enhancements.

Tech Lead / Full Stack Developer at Codeferns Technologies Pvt. Ltd.

October 1, 2019 - November 30, 2023

Led agile cross-functional teams (6+ developers) to design and ship React/Angular mobile and web applications. Provided technical mentorship, code reviews, and architectural guidance. Delivered client solutions with a focus on innovation, maintainability, and quality from planning through delivery.

Frontend Developer at Focal Code

May 1, 2019 - October 31, 2019

Built responsive web applications using Angular, HTML, CSS, and JavaScript. Enhanced user experience through performance optimization and feature-rich frontend development.

Graphics Designer at ITConnectUS

January 1, 2019 - April 30, 2019

Designed marketing and web materials aligned with brand identity. Contributed to user engagement through creative design solutions.