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Techchain AI

Blockchain Engineer

Reposted 20 Days Ago
Remote
18 Locations
180K-200K Annually
Mid level
Remote
18 Locations
180K-200K Annually
Mid level
The Blockchain Engineer will design, develop, and deploy smart contracts, ensure multi-chain interoperability, and build secure staking systems while collaborating with various teams.
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About the Role

We are looking for a skilled and innovative Blockchain Engineer to join our team and help build the core on-chain infrastructure for our Web3 gaming ecosystem. You will design smart contracts, enable multi-chain interoperability, build staking systems, and integrate wallets and NFTs across multiple EVM and non-EVM chains.

This is a key position for driving the blockchain foundation of our platform.

Responsibilities
- Design, develop, and deploy smart contracts (Solidity, Rust) supporting staking, NFTs, and in-game assets.
- Implement multi-chain integrations across EVM-compatible networks and Solana.
- Develop secure and gas-optimized staking, bridging, and token mechanisms.
- Integrate wallet functionality (MetaMask, Phantom, WalletConnect) into Web and Mobile apps.
- Build backend services that interact with blockchain nodes and smart contracts.
- Perform smart contract audits, threat modeling, and vulnerability assessments.
- Research and implement new Layer 2, rollups, and multi-chain scalability solutions.
- Collaborate with Full Stack, DevOps, and Product teams on architecture and deployment.
- Support NFT minting pipelines, metadata storage, royalties, and marketplace logic.
- Maintain blockchain documentation, SDKs, and technical specifications.

Preferred Qualifications
- 3+ years experience with Solidity, Rust, Smart Contracts.
- Strong experience with Web3.js / ethers.js, Hardhat, Truffle, Anchor, or Foundry.
- Deep understanding of EVM, Solana, NFTs, ERC-20, ERC-721, ERC-1155 standards.
- Experience with staking, liquidity pools, DeFi mechanics, and yield logic.
- Familiarity with Layer 2 technologies (zkSync, Arbitrum, Optimism, Polygon).
- Experience integrating blockchain systems with Node.js, TypeScript, or Python.
- Security-focused mindset with experience mitigating common smart contract vulnerabilities.

Top Skills

Anchor
Ethers.Js
Foundry
Hardhat
Node.js
Python
Rust
Solidity
Truffle
Typescript
Web3.Js

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