Vyper · DeFi · Ethereum
Production-grade smart contracts built in Vyper — provably-fair on-chain games, DeFi primitives, and security-hardened protocol engineering.
⚔️ NodeJackPot
Provably-fair on-chain elimination raffle with Chainlink VRF 2.5. Players buy tickets at quadratic cost, VRF eliminates participants until 3 survivors split the pot (70/20/10). Pull-payment pattern, 24-hour vesting, reentrancy guards, rolling jackpots.
🔄 Coil DEX
Off-chain intent DEX with batch auction settlement and partial fills. EIP-712 typed-data signing, EIP-1271 smart wallet support, EIP-2612 permit integration, EIP-7702 EOA support, per-intent allowance guards. 95 tests across 8 modules.
🏦 KhomDev Keep
ERC-4626 multi-strategy yield vault for USDC with senior/junior tranching. Smart strategy router across Aave V3, Compound V3, and Morpho Blue. HWM performance fees, Senior/Junior risk tiers, EIP-2612 permit.
🗳️ KhomDev VeForge
Vyper 0.4 reference implementation of vote-escrowed tokenomics — VotingEscrow, GaugeController, and BribeDistributor. Modernized for the Vyper 0.4 module system, Snekmate-hardened, Moccasin + Hypothesis tested.
⚖️ TARE Stablecoin
Overcollateralized, ETH-backed stablecoin pegged to USD. Every TARE is minted against 2× locked ETH; positions carry an on-chain health factor and permissionless liquidators restore solvency when collateral falls below the threshold. No governance token, no admin keys on the engine, no rebasing.
Deployed Tools
Production AI-powered tools on Google Cloud Run — on-chain intelligence, DeFi analytics, and DAO automation.
Real-time on-chain intelligence terminal monitoring $1M+ transactions with AI-driven behavioral analysis.
Institutional-grade asset monitoring with real-time price history and automated market risk reviews.
Multi-stage security protocol for Vyper 0.4+ and Solidity. Integrates SAST with AI semantic synthesis.
Contributor intelligence portal scoring on-chain identity and governance participation for DAOs.
Sentiment engine for Twitter & Discord with predictive FOMO analysis and batch data processing.
Autonomous trading bot with CRT terminal UI and high-fidelity Gemini AI market intelligence.
Tools of the Trade
Smart Contracts
DeFi Protocols
Dev Tooling
Security
AI / Backend
Infrastructure
Hire Me, Paid in Crypto
Vyper 0.4 is a narrow expert pool. If you ship on Ethereum and need security-hardened contracts, integrations, or AI-driven content — these are productized engagements with fixed scope, fixed price, USDC settlement.
Vyper Code Review
Targeted review of a Vyper contract or module (≤500 LOC). Severity-ranked findings, suggested patches, PDF report.
- Written PDF report
- Severity-ranked findings
- Suggested code patches
Snekmate Migration
Port a Solidity ERC-20 / ERC-721 / vault contract to Vyper 0.4 using Snekmate modules — gas-optimized, fully tested.
- Vyper 0.4 port
- Test parity with original
- Moccasin project scaffold
Aave V3 / Uniswap V3 Integration
Atomic position-management contract wiring Aave V3 lending, Uniswap V3 swaps, and Chainlink valuation. Mainnet-fork tested.
- Custom helper contract (Vyper)
- Chainlink oracle wiring + slippage guards
- Mainnet-fork test suite
Chainlink Oracle Adapter
Custom Chainlink price-feed adapter with staleness checks, fallback logic, and decimals normalization. Comes with fork-pinned tests.
- Adapter contract (Vyper)
- Staleness + heartbeat guards
- Mainnet-fork tests
TWAP / MEV-Hardening Pass
Drop-in TWAP integration and sandwich-resistance audit for an existing swap path. Includes gas report and mitigation patch.
- TWAP integration code
- Sandwich-attack risk report
- Gas diff + mitigation patch
PHOSPHOR Trading Bot
Custom fork of PHOSPHOR — mainnet Uniswap V2 trading bot with your strategy module, TWAP pricing, nonce-safe execution, Prometheus metrics.
- Custom strategy module
- Backtest report
- Prometheus dashboard + kill switch
Growth Engine — Web3 Narrative
One topic in, four platform-native drafts out: X thread, LinkedIn post, blog, newsletter. Auto-audited and refined through a 5-stage Gemini pipeline.
- 4 platform drafts per topic
- Sentiment + narratives research note
- Word-level edit diff (signal vs. noise)
Pick a package
Tap "Request invoice" — I reply within 24h with a 1-page Statement of Work (scope, deliverables, timeline).
50% in USDC, work begins
Sign SOW, send 50% to my treasury wallet (Base / Arbitrum / Mainnet — your call). Daily progress updates over Telegram / email.
Delivery + final 50%
Code, tests, and report shipped. Final 50% on acceptance. 7 days of post-delivery support included.
Jobs over $5k? Use a Safe multisig with a neutral signer or Kleros Escrow — your choice, no extra cost.