Some projects started with my own idea; on others, I led the technical side. I have a good eye for design and branding, and contribute to both. I lead teams and remain hands-on in development.
11 years in commercial software, coding since 15
$13.75M raised by projects I helped build
$30M peak TVL of a DeFi protocol based on my idea and architecture
2 acquisitions companies I helped build, including one successful exit
20 people largest team I have led
Open to Senior/Staff Product Engineer, Tech Lead and hands-on CTO roles. Betting, Web3/DeFi and AI products first, fintech and SaaS too. Remote, hybrid or on-site, and open to relocation. Based in Wrocław, Poland. Polish JDG for long-term B2B, full-time employment works as well.
Experience
· Remote
CTO & Co-founder
Crypto Venture Studio (NDA)
A venture group building betting, exchange, DeFi and infrastructure products. Hands-on CTO, with product ideas, design and community engagement on selected projects.
Onchain DFS betting: CTO and architect. Wrote the entire backend, relayer and risk/settlement agents. The project raised $2.5M.
Non-custodial yield protocol: my idea and architecture; wrote contracts, backend and automation. Three-person team, about $30M peak TVL, investment funds among users. The company was acquired.
BRC-20 / Ordinals exchange: co-developed the idea, designed the architecture and led the team. The project raised $8M.
AI swap chat (2023): Co-CTO for infrastructure, backend and model fine-tuning. About 1,000 DAU at peak.
A DeFi/NFT game with a hybrid onchain/offchain economy. I designed the architecture from scratch when onchain games had few good examples, then built and led a 15-person team.
Shipped web and Unity games, an NFT marketplace, staking, a custom relayer and audited contracts.
Helped design the game economy and contributed to gameplay, design and branding. Worked with technical partners and represented the project to its community.
$3M raised, 30K users, about 1K weekly active, $500K+ TVL. The WOD token passed $10M in daily trading volume.
Delivered the roadmap through the crypto winter and the start of the war. World of Defish was acquired after almost two years.
Led an existing 20-person team modernizing a scientific agtech platform. Chose an API layer around a 25-year-old Visual Basic calculation core that could not be rewritten within the project. Designed a microservice architecture around the team's existing Vue/Laravel, .NET and Node.js skills.
Worked with scientists on soil analysis, sensor data and satellite imagery.
Systems for Israeli clients: Laravel apps that held peaks of 50K+ concurrent users after Instagram campaigns, Vue visual builders, React Native apps and the infrastructure. My first distributed systems, with a team of 5.
· Odesa
Full-stack Developer
Quarnuts
Systems for large Ukrainian companies on Vue, Laravel, WordPress and Drupal. Also C++ in Unreal Engine 4 for a VR apartment showroom for Foxtrot.
· Odesa
C/C++ and web developer
Agroinvestgroup & freelance
Started getting paid for code at 15. Six months of C/C++ for STM32 controllers in an agricultural sorting terminal, and freelance web work on WordPress, Drupal and Laravel.
How I work
From idea to launch. I originated the idea and designed the architecture for a non-custodial yield protocol, then built its contracts, backend and offchain automation in a three-person team. I also contributed to product design and community engagement.
Small teams, full products. Three programmers built the onchain betting platform. As CTO, I designed the architecture, wrote the entire backend and led the team.
Agents in production. I built AI agents for risk monitoring and complex bet settlement. I also built tools that let business teams get data without asking developers, and used an agent to flag production issues.
Domain experience
Domain
Experience
Work
Blockchain / DeFi
5 years
EVM and Solana contracts, exchanges, non-custodial protocols, relayers and indexers.
web3-token (★ 368). Wallet sign-in for dApps through signed messages, EIP-4361.
chain-syncer (★ 25). Keeps an app in sync with EVM contracts in real time. A lighter alternative to The Graph for dApp backends.
PI-GPUI (★ 14). An editor I built for pi coding agent users. Yes, you can call it niche.
My own setup: pi with PI-GPUI, mostly Claude for code and design, OpenAI for research and code review. Technical writing on dev.to and Hashnode as @bytesbay.
Education & languages
BSc in Computer Science, Odesa Polytechnic National University, 2017–2019
English C2. Ukrainian and Russian native.
Interests
Agentic Ops · Military tech (served as a sergeant in the Armed Forces of Ukraine in 2024) · Betting and prediction markets · Blockchain · AR/VR, shaders and games