Kesley D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

👋 My name is Kesley, a passionate developer with over 14 years of experience in the world of technology, focusing for the last 8 years on JavaScript and TypeScript. As the founder of Kesley DEV, I have led innovative and challenging projects, reflecting my dedication and expertise in these languages. 💡 My career is guided by the constant search for technological solutions that transform and optimize people's lives. I specialize in translating complex problems into efficient and elegant code, always with the aim of delivering the best experience and results for clients. Recently, I've been involved in a number of challenging and varied projects, including: ✅ Video and audio streaming systems, applying advanced technologies for immersive media experiences. ✅ E-commerce development, integrating robust solutions to improve shopping experiences and optimize sales. ✅ Marketing systems, with varied integrations, requiring in-depth knowledge of digital marketing. ✅ ERP systems, contributing to operational efficiency through integrated resource planning solutions. ✅ Development of SaaS systems, creating scalable, secure and reliable solutions for various markets. 🔍 In each of these projects, I dealt with both backend and frontend aspects, including end-user interfaces and administrative dashboards. This diverse set of experiences allows me to offer a holistic view and integrated solutions in software development. 🏅 My certifications - GITLAB Certified Git Associate, Oracle Certified Foundations Associate, GitLab Certified Associate, Uncomplicating Docker, Uncomplicating Kubernetes, Container Expert, and Uncomplicating Istio - endorse my technical competence and commitment to excellence. 🚀 In addition to my specialization in JavaScript and TypeScript, I have skills in HTML, CSS, React, Next.js, Gatsby, React Native, Node.js, Serverless, Firebase, and knowledge of Linux, Docker, AWS and Kubernetes.