Senior Blockchain Developer

Please note: as a remote-first company, we are prepared to conduct all of our recruitment processes remotely.

Have you ever wanted to work as a DeFi developer in a professional team with international clients? If you already have some experience with Solidity or Vyper, it is a great opportunity for you to take a big step further and advance your career!

Our expectations are that you will be passionate about what you do and want to catch up with the latest trends in the crypto industry - if you feel confident enough then don’t hesitate to apply and we will see you in the Clouds!

Your role and responsibilities

• Architecting and implementing the blockchain solutions we build.
• Working with the team, client and project manager to efficiently deliver projects.
• Translating business needs to technical solutions and communicating with the client.
• Writing smart contracts in Solidity / Vyper for EVM compatible blockchains or Rust/Ink for Solana / Polkadot.
• Supporting the pre-sales team with your expertise, participating in workshops with potential clients, estimating projects.
• Supporting other team members (backend/frontend/mobile/qa/etc) with blockchain expertise and advisory.
• Tech interviews with potential employees and helping to build teams appropriate for given projects.
• Maintaining internal knowledge and know how.

Requirements

What you bring to the table

• 5+ years of experience in programming / 2+ years of Solidity/Rust development.
• Familiarity with EVM compatible or Rust-based blockchains.
• English at least B2, C1 preferred.
• Knowledge of tools of the trade (e.g. Hardhat/Brownie/DappTools).
• Deep knowledge about blockchain security and best practices writing decentralized code.
• Knowledge and experience working with existing popular DeFi protocols and their forks (DEXes - like Uniswap V2/V3 or Balancer, borrowing/lending protocols - like Compound or AAVE, yield farming protocols - like Yearn).
• Ability to design and implement architecture for new DeFi products (utilizing knowledge of AMMs, liquidations, bonding curves, liquidity mining, tokenomics design and building incentivisation frameworks).
• Ability to write unit tests and maintain high quality of test coverage.

It’s great if you also have

• Hands-on experience with protocols or forks of Alchemix, Abracadabra, Olympus or Tokemak
• Experience with ZK-Proof, Decentralized identifiers.
• Experience with Python, Node.JS or JavaScript.
• Knowledge of Docker.
• Experience with web3.py / ethers.js.
• Good understanding of ABI specification.
• Hands-on experience with crypto wallets, exchanges, bridges and bots.
• Experience with solutions like TheGraph, IPFS, ChainLink, Keep3r, Gelato.
• Familiarity with Layer 2 blockchains is a plus.
• Familiarity with Solana / Polkadot is a plus.
• Familiarity with modern Token Standards and your own deployments / listings on DEXes and marketplaces is a plus.
• Polish language skills.

Benefits

What you can expect from us

• Salary depending on your skills and experience PLN 20 000 - 30 000 net + VAT on a B2B contract with a minimum of 10 days of paid time off (alternative forms of employment are also possible).
• All necessary equipment such as laptop, additional monitor and accessories.
• Flexible working hours.
• You can work 100% remotely or in one of our offices (Warsaw, Poznan).
• Private healthcare (employee’s package covered by the company).
• Additional grant for more advanced educational projects (given twice a year for more than 1 000 PLN).
• Multisport card and other benefits of your choosing from the MyBenefit cafeteria system
• Co-financing of English & Polish classes.
• Mental health support on Wellbee platform.
• Individual career path and professional development initiatives.
• Co-financing of team building initiatives (remote and offline).
• Unique welcome pack.

Want to know more about us?

10Clouds is a place created by software developers for all who want to join our mission to change the world through technology. We are a team of around 140+ people, working on exciting projects with a team of ambitious professionals and with clients located all around the world.

We focus on services related to web & mobile development and product design. We’ve won a number of awards for our work and have worked for a huge range of global clients, from start-ups to large corporations such as Pinterest, Facebook and Orange. We take extreme ownership of our work, working together to produce outcomes. In practice, this means you will have influence over what technologies are used and how a project is approached.

We’ve practiced remote work since the company was first established, approaching all projects with an agile mindset. Our cross-functional teams can work from anywhere but we also have office space in 3 main locations in Poland: Warsaw and Poznan. We believe wellbeing at work starts with trust, good relationships and having the right processes in place so that each and every Cloud can take joy in their work.