Blockchain Engineer ‑ Copy-Trade Protocol

Zignaly

Singapore

On-site

SGD 120,000 - 180,000

Full time

14 days+

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Benefits offered by this job

Hardware fund

Gas trading allowance

Health stipend

Public P&L sharing

Inflation-linked supply bonus

Job summary

Zignaly is hiring an on-chain engineer in Singapore to build gas-efficient testnets, cross-chain vaults and relay contracts across EVM chains. You will ingest master signals, absorb slippage, and architect secure commit-reveal pools with LayerZero, Wormhole, CCIP, and custom relayers.

The role requires Solidity/Rust, EIP-712, and MEV understanding, with white-hat reviews and on-call incident duties. Ideal candidates have hands-on experience with security tooling, gas profiling, and building

Qualifications

Solidity 0.8.25+ with Foundry toolchain (Forge/Anvil/Cast) or Rust on Solana.
Experience with Huff/Yul inline gas optimization techniques.
Knowledge of EIP-712 signing and EIP-1167 minimal proxies.

Responsibilities

Build gas-constrained e2e testnets atop Anvil mainnet fork for release candidates.
Coordinate cross-layer bridges and relayers for sub-2s finality.
Lead security reviews (Certora specs, Immunefi) and incident response.

Skills

Solidity 0.8.25+

Rust/Anchor

EIP-712 signing

EIP-1167 proxies

Huff / Yul inline gas

Cross-layer bridges

MEV-Geth style searchers

Price oracles (Chainlink, Pyth)

Security tooling (Slither, Mythril, Ec

Tools

Foundry (Forge, Anvil, Cast)

TypeScript

Solidity

Ethereum tooling

Ethers.js

Web3.js

Rust

Job description

Mission:Emit immutable trade clones at the speed of mempools. Engineer on-chain vault + relay contracts that ingest master signals, laser-bridge them across EVM chains, and absorb slippage, MEV, and NFL Sunday-level volatility without exposing followers to liquidation contagion.Stack & Level Requirements- Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana- Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies- Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality- MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools- Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events- Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code- Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hookHard-Check Trader DNA You have personally executed >$10 k notional on perpetuals & on-chain or cross-margined DeFi strategies with stress traces or Etherscan proof of addr. You’ve felt (or caused) impermanent loss >10 % in a single block. Optional but revered: vault or strategy on DeFiLlama/Apeboard with >$50 k TVL linked to your keys.Responsibilities- Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.- Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).- Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).- Draft governance & upgrade timelocks (OpenZeppelin UUPS).- Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.Soft Enemies – Don’t apply- ifYou only deployed ERC-20 tokens and never** felt liquidation missiles.- You ignore MEV game theory.Perks / Weapons Cache- Hardware fund: Apple M Max + 64 GB RAM, 10 Gbps fibre hookup.- Personal copy-trading gas allowance 1 k USD monthly – trade openly on testnet, share P&L in public.- Health stipend for red-eye debugging—includes premium dark-coffee & builder-milk.- Additional 1 % of inflation-scheduled supply upon achieving $100 m copy-AUM on ETH L2. Ready to ship settlement layer blood sport?

Responsibilities

Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.
Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).
Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).
Draft governance & upgrade timelocks (OpenZeppelin UUPS).
Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.

Requirements

Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana
Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies
Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality
MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools
Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events
Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code
Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hook

Tech stack