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Careers - Jobs List

Work on Celo and join us in building a financial system that creates the conditions for prosperity for all.

<div>cLabs is seeking a Blockchain Core Developer (Senior Distributed Systems Engineer) to join our Blockchain Team. Our team is responsible for the Celo's blockchain node. </div><div><br></div><div>Our node is based on go-ethereum software with several transformations (like the consensus engine) that make the Celo blockchain unique. Our main challenges are scaling the network; improving its security and resiliency; and adding new features to the Celo ecosystem that can only be done at the node's level (like paying gas with an ERC20 token).</div><div><br></div><div>We work alongside other engineering teams within cLabs. This includes other platform teams such as the Primitives team, as we constantly access smart contracts as part of our operations, and collaborate with other teams to design and implement the right incentives for our validators and full nodes. We also partner with user-facing teams such as the Developer Tools teams, as a big part of our job is to make end users' and contributors' lives easier. </div><div><br></div><div>This is a role with wide exposure to many areas of the stack, and you'll quickly get acquainted with all the moving parts in a modern blockchain project.</div>

cLabs is seeking a Blockchain Core Developer (Senior Distributed Systems Engineer) to join our Blockchain Team. Our team is responsible for the Celo's blockchain node. 

Our node is based on go-ethereum software with several transformations (like the consensus engine) that make the Celo blockchain unique. Our main challenges are scaling the network; improving its security and resiliency; and adding new features to the Celo ecosystem that can only be done at the node's level (like paying gas with an ERC20 token).

We work alongside other engineering teams within cLabs. This includes other platform teams such as the Primitives team, as we constantly access smart contracts as part of our operations, and collaborate with other teams to design and implement the right incentives for our validators and full nodes. We also partner with user-facing teams such as the Developer Tools teams, as a big part of our job is to make end users' and contributors' lives easier. 

This is a role with wide exposure to many areas of the stack, and you'll quickly get acquainted with all the moving parts in a modern blockchain project.


<li>Collaborate with teammates and design the Celo protocol</li><li>Contribute to the Celo blockchain client (L1 and L2), making sure it works as expected</li><li>Perform load testing and performance optimization, identifying bottlenecks and optimal parameters for healthy functioning of the chain</li><li>Write documentation outlining the specifics of the Celo protocol</li>

<li>Prior blockchain knowledge and development experience</li><li>Golang, ideally familiar with geth / optimism / erigon or other golang-based Ethereum clients</li><li>Distributed systems design skills and development experience</li><li>Good debugging skills, have a good understanding of how to figure out why things behave in an unexpected way</li><li>Good communication skills, both written and verbal</li><li>Responsible attitude to work, strong work ethics</li><li>BONUS: Solidity knowledge</li><li>BONUS: Rust knowledge</li>

cLabs is dedicated to pushing boundaries and driving impactful change in the blockchain space.

Blockchain