Grigoriy V.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.

Senior Full-Stack Engineer | Reliable Backend Architecture & Long-Term Product Development 12+ years building backends that other developers can safely inherit, maintain, and grow. I work best as a long-term partner - someone who understands your product deeply, writes code with the next developer in mind, and stays consistent across months and years, not just sprints. I'd rather decline a project than take one I can't deliver well. If your project isn't right for me, I'll say so up front. I focus on the backend decisions that affect your product long-term - architecture, integrations, and keeping complexity under control as systems grow. Where I add the most value: 🔹 OpenAI and Claude API integration into WordPress and custom platforms 🔹 Backend architecture & business logic 🔹 REST API design & integrations 🔹 Refactoring fragile or legacy codebases 🔹 Automation and data processing workflows 🔹 Custom platforms and long-term product development 🔹 Performance optimization & debugging ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ CORE TECHNOLOGIES Backend: 🔹PHP (WordPress, REST API, custom plugins, custom themes, platform logic) 🔹Python (Django, DRF, FastAPI, Flask) 🔹MySQL / PostgreSQL database design 🔹Authentication & permissions (JWT, sessions) Frontend: 🔹ReactJS, NextJS 🔹Modern JavaScript 🔹Clean responsive interfaces 🔹Tailwind, Bootstrap, CSS, SCSS, LESS 🔹HTML Engineering workflow: 🔹Git workflows & code review 🔹Debugging complex production issues 🔹Performance optimization 🔹Long-term maintainability practices How I work: 🔹 I treat client projects like products I'm personally responsible for - not tasks to complete and move on from. 🔹 Clear communication, predictable delivery, and code that doesn't create problems six months later. 🔹 I ask the right questions early so we don't rebuild things twice. Good fit projects: 🔹 SaaS or custom platforms 🔹 Complex business logic 🔹 API integration into existing product 🔹 Stabilizing problematic projects 🔹 Long-term collaboration 🔹 Clients looking for a reliable long-term developer, not a one-off hire