Hire expert back end developers in Chicago, US

"Working with DormarioTech was an exceptional experience from start to finish. I hired them to develop my Ordering App, and they delivered a flawless, fully functional, and user friendly application that perfectly matched my business needs. Every feature was implemented with precision, the design was clean and professional,..."

"Working with DormarioTech was an exceptional experience from start to finish. I hired them to develop my Ordering App, and they delivered a flawless, fully functional, and user friendly application that perfectly matched my business needs. Every feature was implemented with precision, the design was clean and professional, and the performance exceeded expectations. Their communication, professionalism, and commitment to quality made the collaboration smooth and stress-free. They didn’t just build an app they built the right solution tailored to my goals. If you're looking for a reliable developer who delivers top-tier results, I highly recommend DormarioTech. They are worth every penny, and I’ll gladly work with them again."

"Victor is an exceptional developer! He turned our vague concept into a fully functional, intuitive fitness app. His expertise with Flutter and Supabase made the process smooth, and the app runs flawlessly. Highly recommended!"

"Abimbola Abdulramon did a great work for me"

"Irtaza gave us excellent advice on how to improve our application for delivering bulk emails. Throughout the discussion, it was clear that he had extensive knowledge of Node.js, React JS and email service providers including multiple Email service providers. He meticulously looked over our current setup, found any..."

"Irtaza gave us excellent advice on how to improve our application for delivering bulk emails. Throughout the discussion, it was clear that he had extensive knowledge of Node.js, React JS and email service providers including multiple Email service providers. He meticulously looked over our current setup, found any bottlenecks and offered feasible fixes to improve the performance of our email sending. His suggestions on future scalability, load management and handling large email volume were quite helpful. Following Irtaza's suggestions, our application performed far better, leading to improved reliability and effectiveness of email process. Irtaza is highly recommended due to his remarkable problem-solving abilities and knowledge."

""Working with Lorenzo Esposito has been an absolute pleasure. Their expertise in frontend development is outstanding — they have a keen eye for design, write clean and efficient code, and consistently deliver responsive, user-friendly interfaces. Beyond their technical skills, they communicate clearly, collaborate..."

""Working with Lorenzo Esposito has been an absolute pleasure. Their expertise in frontend development is outstanding — they have a keen eye for design, write clean and efficient code, and consistently deliver responsive, user-friendly interfaces. Beyond their technical skills, they communicate clearly, collaborate effectively with the team, and proactively solve problems before they become issues. Their dedication and creativity have greatly improved our projects, and I highly recommend [Developer’s Name] for any frontend development role.""

"Cheng Zhang is an exceptional frontend developer with a deep mastery of JavaScript and TypeScript. Their attention to detail, clean architecture, and ability to translate complex requirements into elegant, scalable UI solutions are truly impressive. They consistently deliver high-quality work, communicate clearly, and..."

"Cheng Zhang is an exceptional frontend developer with a deep mastery of JavaScript and TypeScript. Their attention to detail, clean architecture, and ability to translate complex requirements into elegant, scalable UI solutions are truly impressive. They consistently deliver high-quality work, communicate clearly, and elevate every project they touch."