Ruslan B.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 Mar 30, 2026.

Hi, I am a full-stack developer with hands-on experience in mobile apps, desktop software, firmware, and embedded systems. Most of my work has been on products that need to function reliably on real hardware, not just in ideal test environments. Ihave taken part in projects at very early stages and stayed involved through development, fixes, and long-tem use. I am comfortable moving between different layers of a system, from low-level embedded code to application logic and user-facing features. I have worked with hardware interfaces, operating systems, and backend services that all needed to work together smoothly. A lot of my time has been spent understanding existing systems and improving what is already there rather than starting from scratch. When problems appear in production, i am concentrating on finding the real cause and fixing it properly. I prefer straightforward solutions that are easy to understand and maintain. I pay attention to performance, stability, and how software behaves under real usage. I have integrated AI into projects where it clearly helped solving a problem, but i can avoid adding complexity without a clear reason. I think that i should take requirements seriously and ask questions early to avoid misunderstandings later. Communciation and expectations matter to me as much as the technical work. I have also experience for PLC programming.(ex : 180 cubic meters Oxygen Separator Control Systems) Thanks for taking look my profile. I am open to discussing your project and seeing if my experience is good match.