About Us

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.

About the Role

We are seeking a Senior Application Security Engineer with a strong background in applied cryptography to join our security team.

In this role, you will be instrumental in securing our extensive codebase, which includes:​

• The proving system backend library Barretenberg
• The zero-knowledge proofs DSL Noir
• Our node software
• Our Private Execution Environment
• And more

Responsibilities

• Conduct comprehensive security assessments of our applications and infrastructure.
• Develop and implement security tools and processes to detect and mitigate vulnerabilities.
• Collaborate with development teams to integrate security best practices into the software development lifecycle.
• Assist in the design and implementation of secure coding standards and practices.
• Lead and participate in internal and external security audits.
• Stay abreast of the latest security threats and technologies to ensure our systems remain secure.​

Qualifications

• Minimum 3 years of experience in application security within a software engineering context.
• Proficiency in low-level programming languages such as Rust or C++.
• Strong understanding of applied cryptography and discrete mathematics, including fields and elliptic curves.
• Excellent written and verbal communication skills on technical topics.
• Experience with compiler development and web security is a significant plus.
• Participation in Capture The Flag (CTF) competitions in a cryptography role is advantageous.