Web3 Backend Dev

YODL makes Web3 Payments easy like paying with credit card or mobile apps. We're building an interoperability layer for Web3 payments and build on top of existing blockchain/DeFi infrastructure (chains, wallets, stablecoins, DEXes) and make them useable in a payment context.

Our team has built successful mobile payment apps, defi protoocols, launched Uber in the German-speaking countries and a bag full of other prestige-worthy logos.

Responsibilities

As full-stack backend dev you will build and maintain our various backend systems that supplement our payment protocol.

• Payment Indexer: correctly and reliably index on-chain payments
• Worker queue: reliable job async processing and webhook callbacks
• Merchant APIs, webhook callbacks
• Pricing APIs: aggregate best prices from various DEXes
• End-user facing dashboards for payments and merchant facing tools
  
  

Required Skills

• Excellence in operations, uptime, monitoring and debugability of these systems. Tolerance for failures is very low in payments
• Ability to read and access EVM smart contracts. Most of our systems interact at some point with our and other smart contracts
• You can not just quickly build MVPs, but also take code to the next level and build solid and maintainable systems
  
  

Tech-stack

• TypeScript, React 18, Next.js 14, Viem, Wagmi, etc all in their latest versions
• Currently looking to adopt a new UI framework.
• PaymentRouter in Solidity, deployed to EVM chains (others coming)
  
  

Teamwork & Remote Policy

• We passionately hate scrum, so no daily bore-ups and other scrum madness
• We're striving towards a model inspired by 'Shape Up' and Linear.app team
• Broadly defined stories that leave product responsibility to builders
• We work remote. With occasional meetups throughout the year.
• Team is based in Europe and SE Asia
• Timezones: Europe and SE Asia strongly preferred. Occasional US timezones can be accomodated.
• Mandatory onboarding week with a team mate on-site (expenses paid)
  

Your application progress

• CV/Resume/Cover letter Screen.
• Initial video call/interview with founder, second with frontend dev to check for frontend skills
• Case study/take home test (2h)
• Trial week on-site at one of our hubs