01
ETHGlobal · ETHOnline 2026
SwipeFi
Swap and stake in one swipe — a Telegram Mini App on 1inch Aqua + Lido.
- Problem
- Staking from a stablecoin takes three separate transactions — swap, approve, stake. On mobile, that friction kills conversion.
- Engineering call
- Collapsed it into a single atomic transaction: USDC → ETH through 1inch Aqua liquidity, staked straight into Lido via
executeAtomic(), with calldata ABI-encoded in viem against the official @1inch/aqua-sdk.
- Result
- One swipe instead of three transactions, validated end-to-end on a local Ethereum mainnet fork (Hardhat) before touching real funds.
02
Risk engineering · Python
Crypto Agent
An autonomous trading platform designed around failure, not optimism.
- Problem
- Most trading bots assume orders succeed — and blow up accounts when the exchange says otherwise.
- Engineering call
- Execution reconciliation that never trusts an order until the exchange confirms it, mandatory stop-loss / take-profit, a consecutive-loss circuit breaker and a daily-loss kill switch. API keys are zero-withdrawal and Fernet-encrypted per user.
- Result
- A multi-user Flask platform where every user runs an isolated Binance Spot bot (MA crossover + RSI, gated by a scikit-learn filter) with a live dashboard and Telegram alerts.
03
SaaS backend · TechNova
Urbanix
A residential-management SaaS, from paper and chat groups to one platform.
- Problem
- Residential complexes run visitors, residents, bookings and documents on paper and chat groups — no audit trail, no single source of truth.
- Engineering call
- A modular REST API (Node.js, Express, Prisma) over PostgreSQL with JWT-secured sessions, so each module — visitors, residents, common areas, documents, notifications — evolves independently.
- Result
- A full-stack SaaS (React + Tailwind) covering the day-to-day operations of a residential complex on one consistent data model.
