online · taking work 0xVault ⬡ ETH ◎ SOL

i build onchain tools.

anon dev. bots, dashboards, smart contracts, MEV, whatever touches a chain. nothing goes out unless it works on mainnet.

9+
chains
$269M
monitored
24/7
live bots
anon
but shipping

// about

anon. not quiet about it.

i'm 0xVault. anon dev, been building onchain for a while. right now i'm running a 9-chain liquidation bot watching ~$269M in open debt, plus a pile of private stuff i don't talk about. i also ship public tools when i feel like it (see $PUNK).

no linkedin. no portfolio of dead tutorials. if you need something built and want it on mainnet by next week, hit me on telegram. pay in ETH, SOL, or USDC. NDA is fine.

// builds

things i shipped. mainnet or it didn't happen.
● PRIVATE

multi-chain liq bot

live liquidation engine running on 9 chains. tracks ~$269M of open borrow positions in real time. plugged into Aave, Navi, Evaa, Silo. flash-loan execution baked in.

9 Chains $269M Monitored Flash Loans Aave Python
● PRIVATE

polymarket signal bot

streams the polymarket orderbook live, flags liquidity shifts and thin-book opportunities. built because 84% of polymarket traders lose and i wanted to not be one of them.

Polymarket WebSocket Python CLOB
● WIP

custom block explorer

lightweight block explorer i built from scratch. indexes txs, traces contract calls, no ads, no bloat. for when etherscan just won't cut it.

Node.js EVM Indexer RPC
● PRIVATE

btc backtest engine

multi-strategy backtester for BTC. signal detection, equity curves, full trade logs. v1 through v3 already shipped. over 1M candles chewed through.

Python pandas Backtesting BTC
● PRIVATE

solana arb bot

cross-DEX arb on Solana. watches Raydium, Orca, Jupiter for price gaps. Jito bundles for atomic execution and MEV cover.

Solana Jito Raydium Jupiter
● PRIVATE

pump bundler

token launch bundler for pump.fun and EVM. multi-wallet coordination, LP seeding, Jito bundle execution so your entries don't eat slippage.

pump.fun Solana EVM Jito bundles

// what i build

anything that touches a chain.

smart contracts

Solidity, gas-tight, audit-ready. ERC-20/721/1155, vaults, staking, custom logic. foundry or hardhat.

MEV & bots

arb, liquidation, sniping, market-making. flashbots, jito, private mempools. works across chains.

dashboards & indexers

live analytics, whale feeds, holder trackers. sub-second updates, actually holds up in prod.

defi infra

SDKs, backends, multi-chain wallets, settlement flows. railgun and privacy stuff if you need it.

token launches

deploy, LP seed, bundler setups. EVM or solana. pump.fun, raydium, uniswap, whatever you want.

quant & research

backtests, signal detection, fair-value models. python, pandas, live strategy pipelines.

// stack

what actually runs this stuff.
Chains
Ethereum Solana Arbitrum Base Optimism BSC TON +3 more
Languages
Solidity Python TypeScript Rust (basic)
Libraries & Protocols
ethers.js viem web3.py Uniswap V2/V3 Aave Flashbots Jito Railgun DexScreener GoPlus
Tooling
Node.js Next.js pandas Hardhat Foundry Telegram API

// contact

TG is fastest. don't DM on X for work.