Smart Contracts Engineer

Remote /
Engineering /
Full-time
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 one blockchain 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.

At cLabs, the team working on the open source platform Celo, our mission is to build a financial system that creates the conditions for prosperity for all.

Celo 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. The first application incubated by the internal team at cLabs and successfully spun-out on the Celo platform, Valora, is a social payments and money transfer app, aimed at developing markets.

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:

    • You'll be writing production-level code in Solidity and Typescript
    • You'll be gathering requirements from Product Managers, 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 Smart Contracts
    • You'll facilitate the guiding of the proposed changes to the core Smart Contracts
    • You'll 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

You Have:

    • You have at least 4 years of experience in software engineering primarily working in Javascript, Typescript, and React
    • You have 1 - 2 years of experience in Solidity programming and using development frameworks like Truffle or Hardhat
    • You have prior experience in deploying complex smart contract systems to a public blockchain (e.g. Ethereum)
    • You are knowledgable of the Ethereum Virtual Machine.
    • You have passion for blockchain technology and Celo's mission
    • You have experience working with cloud-based platforms including AWS, Azure, or Google Cloud Platform
    • You have experience with CI/CD pipelines and the Software Development Life Cycle (SDLC)
    • 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

Nice to Have:

    • You have prior experience in deploying complex smart contract systems to a public blockchain (e.g. Ethereum).
    • You have experience in smart contract release processes
    • You have experience working with third party smart contract auditors such as OpenZeppelin, Certora
    • You have worked on a smart contract system that have processed high dollar volume amount
    • 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.

cLabs is a Teal organization, a method of decentralized management and organizational governance. Roles are defined around the work, not people, and there is a high degree of autonomy. As such, we're all proud to hold the job title of "Partner." For more information on our culture, we encourage you to check out our blog at https://medium.com/celohq/the-future-is-teal-cc264a5d51d3.

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.

Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us by sending an email to assistance(at)celo.org. We will treat your request as confidentially as possible. In your email, please include your name and preferred method of contact, and we will respond as soon as possible.