Software Engineer

Summary

Join Aztec, a company focused on adding privacy to Ethereum, and be part of a team building a first-of-its-kind Layer 2 with private smart contracts. You will work on the client-side stack, designing and building tools and SDKs for developers to create privacy-preserving dApps. Responsibilities include developing a secure client-side execution environment, architecting reusable patterns for smart contracts, collaborating with cross-functional teams, and improving existing code. The ideal candidate has 3+ years of software engineering experience in blockchain or cryptography, deep proficiency in TypeScript, and a working knowledge of system-level concerns. Bonus points for experience with Rust or Solidity and contributions to open-source projects. Aztec offers a flexible, remote-first culture, competitive salary and equity, generous leave, health benefits, quarterly offsites, and a learning budget.

Requirements

• 3+ years of professional software engineering experience 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

Responsibilities

• 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

Preferred Qualifications

• 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

Benefits

• 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