Create flexible and precise queries that fit your needs exactly. Example:
React.js, -USA
×
Laravel, Vue.js, -Contract
×
will get you jobs that are
(React.js and not in USA) or
(Laravel and Vue.js and not Contract/Freelance).
You can mix and match any tags, negations and groups in any order. And don't worry about typos – the search is fuzzy.
cLabs
Europe
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.
Join Tether and Shape the Future of Digital Finance
At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with Tether
Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?
Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.Are you ready to be part of the future?About the job
The role involves working in a dynamic environment with a diverse team of senior backend developers, C++ developers, product managers and leadership to build mobile versions of our AI solutions. The applications are meant to be high performance, light-weight and highly intuitive to cater to a variety of audiences.
Key responsibilities
- Development : Design and build advanced cross platform applications for the [iOS/Android] platform using React Native. Collaborate with UI/UX designers to ensure applications are visually appealing and intuitive. - Integration: Work closely with backend developers and integrate Javascript SDKs, libraries, and backend services into mobile applications. - Collaboration: Collaborate with product managers, designers, and other developers to deliver innovative solutions.Thoroughly experienced with React, React-Native (mainly around Expo), Redux and the core principles surrounding these.
Highly proficient in JavaScript and ES6+.
Experience with CI/CD pipelines for mobile development.
Familiar with modern front-end pipelines and tools.
Experienced with Native modules (C++) , WebSockets, RESTful based APIs.
-
Experience in Swift/Objective-C (iOS) or Kotlin/Java (Android) for low level implementation.
Apply Now: