Oleksandr P.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.

Hi! I’m a full-stack developer with 5+ years of experience in frontend, backend, blockchain, and AI solutions. ✅ Frontend & Backend Development • React 19.2+, Next.js 16+, Zustand, SWR, RTK Query, Redux • Modern JavaScript (ES2025+), TypeScript • Responsive layouts (Tailwind CSS, SCSS, BEM) • WordPress CMS integrations • Project containerization with Docker for easy deployment across environments • Docker, Kubernetes, DevOps, CI/CD • Vite, Webpack, Monorepo, Turborepo • GitHub, GitLab ✅ Backend Development • Node.js, Fastify, Express • PostgreSQL, Prisma ORM • REST API & authentication • Scalable and secure server-side logic • Docker, DevOps, CI/CD ✅ AI & LLM Deployment • Deploy self-hosted GPT-like models (LLaMA, Mistral, GPT-J, GPT-NeoX, Ollama) • Fine-tune models on custom datasets • Integrate AI chatbots or assistants into web & mobile apps • Experience with Hugging Face, Ollama, LM Studio, inference endpoints 🔧 Also experienced with GitHub, CI/CD, modern JS (ES2025+), and clean scalable architecture. I focus on clarity, performance, and delivering real business value through modern technologies. Confirmation of qualification: Certificate of Microsoft and IMB and Johns Hopkins University and certificates of CyberBionic Systematics. More information in the "Education" section.