Lead Blockchain Engineer

Description

We believe that the future of money and the internet should be more open and fair. That everybody should have equal access to economic opportunities, and that this brave new future is possible. It can be realised through crypto. That's why we started Argent: the world's first super app for crypto. Empowering you to control and prosper from your digital assets and identity. We launched in 2018 and are fortunate to be backed by Silicon Valley and Europe's top investors, including Paradigm,Index Ventures, Creandum and firstminute capital. It's a particularly exciting time to join us as our new wallet gives people the best of Ethereum at up to 100X lower fees. (Check out people's reaction here).

Overview of the role

We're looking for an experienced blockchain engineer to lead our blockchain team as we build the first mobile wallet on zkSync and the first wallet on StarkNet. You'll also continue to develop Argent Vault, the first Ethereum wallet with multisig security and no seed phrase (which Vitalik discussed as being vital for mass adoption). On both zkSync and StarkNet 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'll write your contracts in Cairo. In doing this you'll become one of the world's leading experts on blockchain scaling and make self-custody a viable option for millions more people. You'll work closely with our co-Founder and Chief Science Officer, while overseeing a team of 2-3 outstanding blockchain engineers.

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.