Senior Smart Contracts Engineer

Celo • Full-time • Remote (Remote (Berlin)) • 1d ago

At cLabs, our mission is to create financial building blocks that empower everyone in the world to save, spend, and innovate with money. cLabs is a technical powerhouse and product incubator dedicated to the Celo ecosystem.

Celo is a Layer 1 blockchain - moving to being a Layer 2 on Ethereum soon - that aims to remove the barriers for large-scale adoption of cryptocurrencies as means-of-payment. Using a novel address-based encryption algorithm, the Celo protocol makes sending money as easy as sending a text. Additionally, Celo uses stable-value tokens pegged to fiat currencies, like the US Dollar, to minimize volatility. Celo is an open protocol enabling many to participate in the system, even with a budget Android smartphone.

cLabs is seeking a Smart Contracts Engineer to join our Contracts Team. As part of the contracts team you will help design and develop Celo's core smart contracts and help develop best practices and processes to ensure those smart contracts are secure. This includes our governance, proof of stake, stability mechanisms, and the decentralized identity system.

You Will:

Write production-level code in Solidity and Typescript
Gather requirements from Engineering Partners and other key internal and external stakeholders (e.g. Celo Validators, Celo Stakeholders) in order to determine and implement changes to our core primitives, including smart contracts and tooling.
Collaborate with third party Smart Contract Auditors to ensure the quality assurance of the proposed changes as they go through our smart contract release process
Work on releases end-to-end: from specifications, to design, ship and maintain.

You Have:

At least 4 years of experience in software engineering primarily working in Javascript, Typescript.
At least 1 - 2 years of experience in Solidity programming and using development frameworks like Foundry, Hardhat or viem.
Prior experience in deploying complex smart contract systems to a public blockchain (e.g. Ethereum)
Solid knowledge of the Ethereum Virtual Machine (EVM).
Passion for blockchain technology and Celo's mission
Experience working with cloud-based platforms including AWS, Azure, or Google Cloud Platform
Experience with CI/CD pipelines and the Software Development Life Cycle (SDLC)

Nice to Have:

BONUS: low-level working experience.
BONUS: You have experience working with third party smart contract auditors such as OpenZeppelin, Certora
BONUS: You have worked on a smart contract system that have processed high dollar volume amount
BONUS: You have knowledge of past and common smart contract exploits and know how to avoid them

cLabs ("Celo Labs") started Celo in 2017 and is one of many contributors to the open source project Celo. cLabs builds financial technology to enable prosperity of all beings.

To build technology and products that are used and loved by people and solve real-world problems, we need to build a team with many different perspectives and experiences. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We encourage candidates from all backgrounds to apply and always consider qualified applicants with arrest and conviction records, in accordance with the San Francisco Fair Chance Ordinance.