Senior Blockchain Engineer

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3 days ago

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Nethermind

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Crypto • Enterprise • Security

Nethermind is a blockchain engineering and research company that provides institutional-grade Blockchain-as-a-Service, core client implementations, security audits, formal verification, and developer tooling for Ethereum and Starknet. They offer infrastructure management, dApp and enterprise engineering, biometric identity solutions, and AI agents, and publish active research in cryptography, DeFi, and protocol design. Nethermind serves enterprises, protocols, and developers with open-source clients, node tooling, and security services to support scalable, compliant, and secure decentralized systems.

201 - 500 employees

Founded 2017

₿ Crypto

🏢 Enterprise

🔐 Security

📋 Description

• Design, develop, and maintain applications and services built on blockchain infrastructure. • Build, test, and deploy secure smart contracts for Institutional Grade protocols (primarily in Solidity). • Debug, profile, and optimize on-chain and off-chain components. • Integrate blockchain data and transactions into enterprise-grade systems. • Develop tooling and automation scripts for blockchain operations. • Collaborate closely with cross-functional teams and external partners. • Keep abreast of evolving blockchain protocols, tooling, and standards.

🎯 Requirements

• 5+ years of professional software development experience, including 3+ years of Solidity or equivalent smart contract programming. • Proven track record in building, testing, and deploying complex, production-grade smart contracts using toolchains such as Foundry, Hardhat, or Remix. • Strong programming skills in one or more general-purpose languages such as Go, Rust, Python, TypeScript/JavaScript, C#, Java, or Kotlin. • Solid understanding of algorithms, data structures, and computational efficiency. • Strong grasp of software architecture, design principles, and modern engineering processes. • Ability to write clean, testable, and maintainable code that balances simplicity and scalability. • Deep understanding of Ethereum architecture, including its execution model, transaction lifecycle, and core components. • Practical knowledge of the Institutional DeFi ecosystem — lending/borrowing protocols, AMMs, perpetuals, vaults, tokenization, and stablecoins. • Experience building off-chain services and integrations that interact with web3 protocols using libraries such as ethers.js or web3.js.

🏖️ Benefits

• Flexible Work Options: Remote-first culture with the opportunity to work from anywhere. • Global and Diverse Workforce: You'll work with people from various backgrounds and cultures. • Learning and Development: You'll work on innovative, challenging projects and have access to experts and mentors to enhance your skills. • Career Growth: Access to training, mentorship, and opportunities to contribute to open-source initiatives. • Global Events and Conferences: Opportunities to attend the industry events. • Collaborative and Innovative Culture: We foster teamwork and encourage new ideas. • Unlimited Time Off: Enjoy the freedom to structure your working hours in a way that suits you best, with the flexibility to take unpaid time off whenever needed to maintain a healthy work-life balance.