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AztecAZ

Application Security Engineer

Aztec Network is a privacy-focused Layer 2 solution on Ethereum, utilizing zero-knowledge proofs to enable confidential transactions and private smart contract interactions.

Aztec

Employee count: 51-200

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.

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:​Greenhouse

Your responsibilities will include identifying potential security issues, developing and applying tools to detect bugs, and assisting both internal software teams and external contractors with security audits.​

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.​Built In

What we offer:

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.

About the job

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Job type

Full Time

Experience level

Mid-level
Senior

Location requirements

Open to candidates from all countries.

Hiring timezones

Worldwide

About Aztec

Learn more about Aztec and their company culture.

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At the heart of Aztec Network lies a profound commitment to reshaping the digital landscape by embedding privacy into the fabric of the internet. The team believes that the future of blockchain technology, and indeed the internet itself, hinges on the ability of users to control their data and interact without pervasive surveillance. Blockchains, in their current transparent state, present a significant challenge to user privacy, exposing every transaction and interaction to public scrutiny. This transparency, while crucial for verifiability, inadvertently creates what Aztec's CEO, Zac Williamson, describes as a 'massive trap for users'. Aztec Network was born out of the conviction that the financial rails of the future cannot and should not operate under such conditions. The mission is to build an open, encrypted blockchain network that doesn't compromise on the core tenets of decentralization or security, empowering developers to build privacy-preserving applications on Ethereum.

The cultural ethos at Aztec Network is one of innovation, rigorous research, and a dedication to open-source principles. They are pioneering the use of cutting-edge zero-knowledge proof technology, specifically zk-SNARKs and their own industry-standard PLONK proving mechanism, to enable confidential transactions and private smart contract interactions on Ethereum. This isn't just about shielding financial data; it's about unlocking a new realm of possibilities for applications across finance, identity, gaming, and more, where privacy is a fundamental building block, not an afterthought. By developing tools like Noir, a programming language designed to make writing privacy-preserving smart contracts more accessible, Aztec is lowering the barrier to entry for developers. The vision extends to a fully decentralized stack, where every component, from sequencers to provers, operates without a single point of control, fostering a truly trustless and user-centric ecosystem. This dedication to building in public and fostering a collaborative community underscores their belief that privacy is not just a feature, but a creative force essential for the maturation and mainstream adoption of Web3 technologies.

Claim this profileAztec logoAZ

Aztec

Company size

51-200 employees

Founded in

2017

Chief executive officer

Zac Williamson, Joe Andrews

Employees live in

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