Hire experts in Javascript in Lisbon, PT

"Vladislav was responsible for all development from A to Z and based on his great expertise and knowledge about Blockchain development, he completed the project very perfectly and delivered on time. I believe his blockchain development skills and with him, we could complete our presale successfully with large Market..."

"Vladislav was responsible for all development from A to Z and based on his great expertise and knowledge about Blockchain development, he completed the project very perfectly and delivered on time. I believe his blockchain development skills and with him, we could complete our presale successfully with large Market Cap. Really respect his knowledge about crypto space. Thank you again"

""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."

"I had the pleasure of working with a highly skilled freelance developer for zauperfumes.com, and the results exceeded my expectations. He delivered a clean, professional, and beautifully designed website that truly reflects the essence of my brand. His communication was clear, his problem-solving was impressive, and he..."

"I had the pleasure of working with a highly skilled freelance developer for zauperfumes.com, and the results exceeded my expectations. He delivered a clean, professional, and beautifully designed website that truly reflects the essence of my brand. His communication was clear, his problem-solving was impressive, and he handled every task with dedication and expertise. I’m extremely satisfied with his work and would confidently recommend him to anyone looking for a reliable and talented developer."

"I had the pleasure of working with Lok Lee during his time as a Software Engineer at OpenPhron.ai, and I can say with confidence that he was one of the driving forces behind the progress we made in the early stages of the product. Lok demonstrated exceptional skill in full-stack development — particularly in React,..."

"I had the pleasure of working with Lok Lee during his time as a Software Engineer at OpenPhron.ai, and I can say with confidence that he was one of the driving forces behind the progress we made in the early stages of the product. Lok demonstrated exceptional skill in full-stack development — particularly in React, Redux, Web3.js, Laravel, and AI system integration. He played a crucial role in building and refining core platform features, including the AI→Solidity generation pipeline, API logic orchestration, and frontend UI implementation. His ability to break down complex technical requirements into clean, working solutions made him invaluable to the team. Beyond technical ability, Lok showed strong ownership, consistency, and curiosity. He was the kind of engineer who didn’t just complete tasks — he explored why things worked, proposed improvements, and followed through until features were polished and production-ready. Even under pressure, he stayed calm, analytical, and solution-focused. What stands out most is his passion. Lok genuinely cares about building good software — and that energy elevated the whole team. I would highly recommend Lok to any team looking for a smart, reliable, and forward-thinking developer. He grows fast, collaborates well, and brings both skill and character to the table. Guillermo Guimarães Co-Founder, OpenPhron.ai"

"Working with her was an absolute pleasure. From the start, her professionalism and ability to grasp our vision for the real estate website, social strategy, and complex 3D animation made us confident in her abilities. She handled the entire project portfolio seamlessly. We were most impressed by her clear communication and..."

"Working with her was an absolute pleasure. From the start, her professionalism and ability to grasp our vision for the real estate website, social strategy, and complex 3D animation made us confident in her abilities. She handled the entire project portfolio seamlessly. We were most impressed by her clear communication and the consistent quality of her deliverables. She didn't just complete the tasks; she added strategic value that directly improved our marketing efforts. We view her as a key partner and will certainly hire her again.""