Service
Blockchain & Web3
Production-grade crypto backends - wallets, chains and on-chain exchange.
I build the backend and integration layers behind crypto products: wallet services, custom chain modules and the bridges between apps and smart contracts - with the caching and reliability real users need.
What I can build
Wallet & chain backends
Microservice backends for wallets, with caching in front of node reads to cut load and latency. Custom Cosmos SDK (Go) modules for logic the standard SDK doesn't cover.
Smart-contract integration
Integration layers between apps and Ethereum or Cosmos contracts - bids, transfers, NFT minting (including batch) and on-chain exchanges (e.g. Wyvern).
Performance for on-chain data
Read-through caches over node calls. I cut direct node requests ~60% and brought balance reads from ~600ms to ~150ms.
Exchanges & tokenomics
On-chain exchange modules and token mechanics - for example, converting a native token into usage credits.
Proven in production
I designed a wallet backend whose cache cut node load ~60% and made balance reads 4× faster, extended a Cosmos SDK chain with 2 custom modules, and earlier built NFT minting and a Wyvern-based marketplace exchange.
See the wallet case study →Stack
- Go
- Cosmos SDK
- Solidity
- Ethereum
- NestJS
- gRPC
- React
- Docker
Start a project
Open to contract and advisory work - and full-time roles. Tell me what you're building.