Blockchain Engineer

Company Description

ZedAI Digital is an AI-first software company building next-generation digital solutions across AI tools, web and mobile applications, trading technology, software platforms, and selected decentralized applications. The team combines strong AI, software engineering, product development, and infrastructure experience to deliver secure, scalable, and practical technology for businesses and users.

ZedAI Digital’s mission is to empower businesses and individuals with intelligent, efficient, and reliable digital products. The company works across multiple technology areas, including AI development, custom software solutions, trading systems, and blockchain-enabled features where they add clear value. As an agile and creative company, ZedAI offers a fast-paced remote environment for talent interested in building modern technology with real product impact.

Role Description

As a Senior Blockchain Engineer at ZedAI Digital, you will help design, develop, and maintain secure blockchain components that support selected products within the company’s wider technology ecosystem. You will work on smart contracts, token-related logic, staking flows, decentralized integrations, and on-chain/off-chain communication while collaborating with AI engineers, backend developers, frontend developers, and product managers.

This role requires strong experience in blockchain engineering, secure smart contract development, and production-grade software delivery. You will help guide technical decisions, improve architecture, review code, and ensure blockchain features are reliable, scalable, and maintainable. This is a contract role and is fully remote.

What You Will Do

- Design, develop, test, and deploy secure blockchain components.
- Build smart contract systems for token, staking, swap, and DeFi-related features where required.
- Integrate blockchain functionality with backend services, frontend applications, and data systems.
- Review architecture and code for security, gas efficiency, and maintainability.
- Collaborate with AI, trading, backend, and product teams to deliver complete features.
- Evaluate blockchain tools, libraries, protocols, and infrastructure providers.
- Support audit readiness, testing coverage, deployment planning, and production troubleshooting.

Responsibilities

- Develop and maintain smart contracts using Solidity and related frameworks.
- Build integrations with wallets, RPC providers, indexers, APIs, and Web3 libraries.
- Support token management, staking interactions, liquidity flows, and selected trading-related blockchain integrations.
- Optimize contracts for gas usage, performance, and security.
- Write unit tests, integration tests, and deployment scripts.
- Review code from other developers and provide technical guidance.
- Document architecture, technical decisions, and contract behavior clearly.

Qualifications

- Strong experience with Ethereum and EVM-compatible blockchain development.
- Advanced Solidity skills and strong understanding of smart contract security.
- Experience with Hardhat, Foundry, Truffle, ethers.js, viem, or similar tools.
- Practical experience with DeFi concepts such as staking, swaps, liquidity pools, or token standards.
- Strong knowledge of ERC-20, ERC-721, ERC-1155, access control, upgradeable contracts, and contract testing.
- Experience integrating smart contracts with frontend and backend systems.
- Ability to identify security risks, edge cases, and gas optimization opportunities.
- Familiarity with Rust, Solana, Layer 2 networks, bridges, or decentralized trading protocols is a plus.
- Strong Git, CI/CD, documentation, and remote collaboration skills.
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience is preferred.