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Sudhanshu Singh

@sudhanshusingh3

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I’m a full stack developer building scalable PHP/Laravel and React/Next.js web apps.

India

Message

What I'm looking for

I’m looking to build scalable full-stack products where I can own REST API integrations, payment flows, and performance tuning, collaborating to ship secure, high-quality experiences that keep users and clients confident.

I’m a Full Stack Developer with 3+ years of experience specializing in PHP, Laravel, WordPress, React.js, and Next.js. I’ve consistently ranked among the Top 1% of freelancers with a 100% Job Success Score and consistent 5-star feedback, delivering 14+ projects and 1000+ hours of development work for global clients.

I build scalable web applications with REST APIs, third-party API integrations (Stripe, PayPal, Google APIs, and OpenAI), and performance optimization that improves backend systems and load times. From secure authentication systems to clean, responsive UIs, I focus on reliable delivery, maintainable code, and strong user outcomes.

Experience

Work history, roles, and key accomplishments

Freelance Full Stack Dev

Upwork

Delivered 14+ projects with a 100% Job Success Score and consistent 5-star ratings, completing 1000+ hours for global clients. Built scalable web applications using Laravel, React.js, Next.js, and WordPress, integrating APIs (Stripe, PayPal, Google, OpenAI) and optimizing performance and secure authentication.

PHP Laravel React Next.js WordPress PayPal MySQL Performance Optimization