About Aztec At Aztec, our goal is to add privacy to Ethereum. In the current public blockchain paradigm, users and entities unknowingly broadcast data in the public, compromising privacy and security to get trustlessness. Not only are unencrypted blockchains inherently privacy-exposing, they require significant redundancy to compute and verify the legitimacy of transactions. Implementing scalable encryption in a public blockchain paradigm requires cutting-edge math and engineering. Thankfully, our team of scientists and engineers invented Plonk, the industry-standard zkSNARK, and Noir, the universal language of zero knowledge. Now, we’re building a first of its kind Layer 2 with private smart contracts. This requires new cryptographic primitives, a zero-knowledge DSL for writing contracts, a privacy-friendly execution environment, a carefully designed set of circuits that prove the validity of the chain to L1, a decentralized block-building and proving mechanism, and a top-tier user and developer experience. And it’s now time to bring it to market. We’ve raised $125 million from industry-leading investors including a16z crypto, Paradigm, Variant, Consensys, and a_capital, and we’re growing quickly.The Role We’re looking for a DevOps Engineer with deep Linux expertise and a passion for building developer-centric tooling. You’ll work closely with our CTO and engineering teams to enhance our internal infrastructure, CI systems, and productivity pipelines. This is a hands-on, high-impact role - ideal for someone who thrives on owning the tools that engineers rely on every day. What You’ll Do

Take ownership of Aztec’s custom CI system and internal build tools. Enhance and build CI dashboards to improve observability of engineering workflows. Harden CI infrastructure using least privilege principles and robust sandboxing. Implement productivity enhancements across C++, Rust, Solidity, and TypeScript build systems. Investigate and resolve low-level bugs related to Linux processes, signals, memory, and IPC. Collaborate face-to-face during your ramp-up phase in our London office. Optionally grow into a leadership role as the internal infrastructure team expands.

💡 Explore our CI system in action: http://ci.aztec-labs.com and the code here. About You You might be a great fit if you:

Prefer scripting custom Bash over fighting YAML in legacy CI systems. Experience with cgroups, kernel namespaces, virtual memory, /proc, and tracing syscalls. Extensive experience with terraform and AWS cloud infrastructure. Know Docker intimately, from minimizing image sizes to how it leverages kernel features. Have experience maintaining complex software stacks and CI systems at scale. Are comfortable with debugging process groups, signals, and build failures at the OS layer. Take pride in building secure, reliable, and fast developer infrastructure.

What We Offer:

Flexible, remote-first culture with HQ in London. Competitive salary + equity/token options. 25 days annual leave + bank holidays. Health, dental, and retirement benefits (based on location). Quarterly offsites for team collaboration and bonding. Conference and learning budget for continual professional development.

A chance to work on truly cutting-edge zero-knowledge infrastructure with some of the best minds in the field.Aztec Labs is an equal opportunity employer and we value creativity, diversity, and intellectual curiosity. If you're passionate about leveraging your creative talents to make a real-world impact, and if you want to be part of a team that's shaping the future of digital privacy, then we would love to hear from you.

Apply Now:

About Aztec

At Aztec, our goal is to add privacy to Ethereum.In the current public blockchain paradigm, users and entities unknowingly broadcast data in the public, compromising privacy and security to get trustlessness.Not only are unencrypted blockchains inherently privacy-exposing, they require significant redundancy to compute and verify the legitimacy of transactions.Implementing scalable encryption in a public blockchain paradigm requires cutting-edge math and engineering. Thankfully, our team of scientists and engineers invented Plonk, the industry-standard zkSNARK, and Noir, the universal language of zero knowledge.Now, we’re building a first of its kind Layer 2 with private smart contracts. This requires new cryptographic primitives, a zero-knowledge DSL for writing contracts, a privacy-friendly execution environment, a carefully designed set of circuits that prove the validity of the chain to L1, a decentralized block-building and proving mechanism, and a top-tier user and developer experience. And it’s now time to bring it to market.We’ve raised $125 million from industry-leading investors including a16z crypto, Paradigm, Variant, Consensys, and a_capital, and we’re growing quickly.What You’ll Do

We’re looking for entrepreneurial, impact-driven engineers who thrive in fast-paced environments and want to be at the forefront of privacy-first decentralized applications. You’ll be part of a highly collaborative team working on the client-side stack that powers Aztec's zero-knowledge execution environment.You Will

• Design and build tools & SDKs that enable developers to build powerful, privacy-preserving dApps on Aztec.
• Develop a secure client-side execution environment, used by wallets and applications to produce and handle encrypted transactions.
• Architect reusable patterns and libraries for writing auditable and verifiable Aztec smart contracts.
• Collaborate cross-functionally with protocol, cryptography, and product teams to build end-to-end privacy-preserving applications.
• Refactor, document, and test existing code for maintainability, performance, and correctness.
• Identify and reduce technical debt, while continuously improving architecture and developer ergonomics.

What We’re Looking For

• 3+ years of professional software engineering experience, ideally in blockchain or cryptography-related systems.
• Deep proficiency in TypeScript, with strong software architecture and API design skills.
• Working knowledge of system-level concerns such as performance tuning, memory management, and secure data handling.
• Able to provide thoughtful code reviews and mentor other engineers.
• Comfortable working autonomously and asynchronously within a distributed team.
• Located in or able to work within GMT to EST time zones.

Bonus Points

• Experience with Rust, Solidity, or other smart contract languages.
• Contributions to open source projects, especially in the Web3 or cryptography space.
• Familiarity with zk systems like ZCash or other privacy-preserving protocols.
• Exposure to modern web development frameworks and tooling.
• Passion for zero-knowledge cryptography and its role in reshaping the internet.

What We Offer

• Flexible, remote-first culture with HQ in London.
• Competitive salary + equity/token options.
• 25 days annual leave + bank holidays.
• Health, dental, and retirement benefits (based on location).
• Quarterly offsites for team collaboration and bonding.
• Conference and learning budget for continual professional development.
• A chance to work on truly cutting-edge zero-knowledge infrastructure with some of the best minds in the field.

Aztec Labs is an equal opportunity employer and we value creativity, diversity, and intellectual curiosity. If you're passionate about leveraging your creative talents to make a real-world impact, and if you want to be part of a team that's shaping the future of digital privacy, then we would love to hear from you.

Apply Now: