Experienced Blockchain Engineer

We’re looking for an experienced blockchain engineer to help us bring the benefits of Ethereum to millions more people. Our Layer 2 offering is smooth, secure and has radically lower gas - all while keeping the unique UX Argent is known for.

On Layer 2, we’ve built the first mobile wallet for zkSync, and the first wallet for StarkNet alpha.

On both platforms you’ll be responsible for the specification, development and deployment of the smart-contracts of the Argent wallet. This includes working closely with the Matter Labs and StarkWare teams to understand their roadmap and make sure our contracts are the forefront of innovation, as well as contributing to the ecosystem to understand the latest smart-contract trends.

On zkSync you will work in Solidity while on StarkNet you will write your contracts in Cairo.

We’re fortunate to be backed by Paradigm, Index Ventures and Creandum and have been building since 2017.

Requirements

Essential

• 5+ years as a software engineer
• 2+ years experience developing top tier smart contracts on mainnet
• Deep understanding of Solidity, Assembly, and the EVM
• An eye for security with a strong knowledge of the main smart contract attacks and vulnerabilities
• Writing code that’s clean, easy to audit, yet efficient in terms of deployment, execution and maintenance.
• Experience with smart-contract patterns such as upgradability, proxy wallets, meta-transactions, and counterfactual deployment
• Good knowledge of the L2 ecosystem, with a deep understanding of ZK rollups.

Nice to have

• Being an active member of the dev community (e.g. experience contributing to EIPs)
• Ability to work well with design, mobile platform and backend teams
• Enjoys working on unfamiliar problems, challenging others and being challenged in turn
• Knowledge of Rust, Javascript or Typescript is a plus

Benefits

• Work remotely: anywhere in Europe (but Europe only). No commute. Lots of flexibility. Plenty of time to care for your kids or cats.
• Equity in a high growth startup backed by the investors of Spotify and Slack.
• Autonomy: you decide how to achieve your best work.
• Trips across Europe: for one week every three months we collaborate in person, explore new solutions and have fun. So far we’ve stayed in Nice, Toulouse, Brussels, Lisbon and Barcelona. We’ll resume these when safe following COVID.
• Equipment: pick the tech setup of your choice.
• Parental leave: generous package for new parents.
• Build a new industry: help define the future of the web.

Our values

You can find more information on each of our values here.