FAQ
Frequently asked questions
124 answers about me, my work and how to hire me, in 10 topics. Pick a topic to read its questions and answers.
About me
All 10 questions →Backend development
- Which backend technologies do you use?
- Are you a Node.js developer?
- Do you build REST APIs?
- Do you work with MongoDB?
Performance and scaling
- Can you fix a slow API?
- How did you scale CV Maker from 200K to 1M users?
- How do you fix high MongoDB CPU usage?
- What did you build for DOP?
AI agents and automation
All 12 questions →AI engineering and cloud
- Do you build LLM and GenAI systems for production?
- Do you build RAG systems with embeddings?
- What is an agentic workflow, and do you build them?
- How do you evaluate and monitor LLM features?
Mobile and desktop apps (SwiftUI)
All 16 questions →Web apps and websites
- Do you build web apps?
- Do you know React?
- Can you build a website or landing page?
- Can you build a multilingual website?
Web3 and blockchain
- Do you write Solidity smart contracts?
- What did you build for Tomi?
- Have you worked on token sales?
- Can you index blockchain events?
QA and testing
- Do you test your own code?
- What QA experience do you have?
- Can you do manual and regression testing for my product?
- Can you find the root cause of a bug?
Working with me
- Are you available for hire?
- Do you build apps that are ready for production?
- Do you work freelance or full-time?
- What is your hourly rate?