Oleksandr Y.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 8, 2026.

I am a Senior Software Engineer with 10 years of experience building scalable applications, architecting robust systems, and leading high-performing Agile teams. My expertise bridges the gap between complex full-stack architecture and cutting-edge AI integration. Beyond core development, I regularly act as a Technical Lead—translating intricate architecture diagrams into production-ready software, managing epic-level estimations, and leading weekly grooming meetings. Recently, I have been building heavily at the intersection of software engineering and AI orchestration, holding an official Claude Developer Certification and actively developing MCP (Model Context Protocol) servers and custom tools using Python. Core Technical Expertise: • Front-End Mastery: Advanced proficiency in JavaScript, TypeScript, Webpack, and SCSS, with a deep focus on Angular 2+ and modern reactive patterns (RxJS, Redux, NgRx, NgXS). • Back-End & AI Tooling: Production experience with Node.js and Python (including MCP architecture and LLM tool integrations). • Code Quality & Testing: Strict adherence to OOP, SOLID, and REST principles. Expert in setting up robust testing pipelines using Jest, Jasmine, and Karma. • Leadership & Delivery: Proven track record in Agile/Scrum environments, architecture mapping, and full-lifecycle software delivery. If you are looking for a senior engineer who can design scalable applications from scratch, write bulletproof code, and integrate modern AI capabilities into your tech stack, let’s connect.