Hire expert back end developers in Sunnyvale, US

"Jimmy Pham was great to work with. They really listened to my needs and all work was delivered on time. Great work and great product delivered. I look forward to continuing to work with Jimmy and the team."

"I highly recommend Darricl for any software engineering role or project. He demonstrates strong technical expertise, a rigorous approach to design and development, and an excellent ability to analyze and solve complex problems. Reliable and dedicated, Darricl consistently delivers efficient, maintainable solutions tailored..."

"I highly recommend Darricl for any software engineering role or project. He demonstrates strong technical expertise, a rigorous approach to design and development, and an excellent ability to analyze and solve complex problems. Reliable and dedicated, Darricl consistently delivers efficient, maintainable solutions tailored to client needs. His attention to detail, responsiveness, and clear communication make him a trusted partner for successfully executing demanding technical projects."

"I hired Princewill to work on the AI-Powered Medical Consultation System (HealthBridge), and I was genuinely impressed by his technical depth and commitment to delivering quality work. He played a key role in building the MVP architecture, implementing backend microservices, and integrating AI driven consultation logic...."

"I hired Princewill to work on the AI-Powered Medical Consultation System (HealthBridge), and I was genuinely impressed by his technical depth and commitment to delivering quality work. He played a key role in building the MVP architecture, implementing backend microservices, and integrating AI driven consultation logic. Beyond his technical skills, he was proactive, solution oriented, and consistently communicated progress clearly. He approaches problems with a strong system design mindset and takes ownership of his work. I would confidently recommend him for any backend or full stack development project, especially those involving AI driven systems."

"Luthfi was the core developer behind Web3 Cianjur, our community learning platform for Web3 education. He single-handedly built the entire platform from scratch — including a gamified reward system, a trading simulator, and real-time community features — all using Next.js, TypeScript, and Tailwind CSS. What impressed me..."

"Luthfi was the core developer behind Web3 Cianjur, our community learning platform for Web3 education. He single-handedly built the entire platform from scratch — including a gamified reward system, a trading simulator, and real-time community features — all using Next.js, TypeScript, and Tailwind CSS. What impressed me most was his speed of delivery and ability to work independently. He managed the full development cycle without supervision, consistently shipped features on time, and maintained clean, well-structured code throughout the project. He also handled multiple projects simultaneously during our collaboration and never dropped the ball. I would highly recommend Luthfi to anyone looking for a reliable, skilled full-stack developer who can take ownership and deliver real results."

"Working with Alex on justmay.co.uk was a seamless experience from start to finish. They quickly understood the vision and delivered a build that mirrors the designs exactly, whilst being technically robust. What really stood out was their attention to detail. Every interaction, transition and layout felt carefully..."

"Working with Alex on justmay.co.uk was a seamless experience from start to finish. They quickly understood the vision and delivered a build that mirrors the designs exactly, whilst being technically robust. What really stood out was their attention to detail. Every interaction, transition and layout felt carefully considered and thoughtfully executed. Nothing felt overlooked. This was coupled with an impressive speed at which everything came together. They worked efficiently without ever compromising on quality, which made a huge difference to the overall process. They consistently went above and beyond to ensure the end result was the best it could possibly be, bringing an extra level of care and craft that elevated the final product beyond expectations. Beyond the build itself, they were incredibly easy to work with. Alex was communicative, proactive, and calm throughout. They made what can often be a complex process feel straightforward and enjoyable, always finding solutions and keeping things moving. The end result is a website that truly reflects the original vision, brought to life with a high level of precision and quality. I’d absolutely work with them again and wouldn’t hesitate to recommend them."

"I have worked with Sahibzada(Sahib) for over 5 years on many Shopify projects. He was great to work with. Sahib is an exceptional Shopify developer who not only understands the technical side of the platform inside and out — from Liquid and theme customization to app integration and performance optimization - but also..."

"I have worked with Sahibzada(Sahib) for over 5 years on many Shopify projects. He was great to work with. Sahib is an exceptional Shopify developer who not only understands the technical side of the platform inside and out — from Liquid and theme customization to app integration and performance optimization - but also takes the time to understand the business goals behind every project, which makes him a true partner rather than just a service provider."