

Senior Backend Engineer (Python) · Ex-CTO at GRI
Senior Backend Engineer (Python) · Ex-CTO at GRI
Hi, I'm Viktor — a senior backend engineer and former CTO with 10+ years in Python. I've built systems in logistics, medtech, fintech, and e-commerce, co-founded two tech companies, and as a CTO I hired and grew developers from junior to senior level. Mentoring was my favorite part of that job, and ADPList is my way to keep doing it. What I can help you with: Python and Django (my strongest side), FastAPI, backend architecture and system design, PostgreSQL and query optimization, third-party API integrations, working with legacy code, and preparing for backend interviews. If you're moving toward a tech lead role, I can also share what actually changes when you stop just writing code. My style: I won't just give you the answer — I'll show you how to find it, so next time you can solve it yourself. We can debug your code together, review your project or architecture, or plan your learning path. No pressure, no stupid questions