Typescript SDK Developer

Job Description The company offers one of the most trusted decentralized custody protocol, smart wallet infrastructure and platfom, as well as a flagship wallet for the ecosystem on Ethereum and the EVM. With 25 Millions transactions handled worth 65 Billion dollars they are on a mission to unlock digital ownership for the world b y continuing building robust and accessible tools that adress web3’s biggest challenges. Size : 50 people Location : Berlin (Germany) Other locations : team s in the UK, Switzerland , Spain and Portugal TECH STACK : Smart contracts: Written in Solidity Backend services: Written in TypeScript and Python, hosted at AWS, orchestrated via Kubernetes Web app: Modern web tech stack with React.js and Next.js Mobile apps: Currently Kotlin and Swift, potentially ReactNative or similar in the future Extensive test suites: E2E via Cypress, Postman, Unit tests in TypeScript/Jest MISSIONS You will help the company design and evolve their set of Typescript developer tools. Specifically, you will work on creating tools that enable other developers to build on top of the existing. This includes improving the current existing kits and creating new ones from scratch. The goal is to create production-ready kits enabling account abstraction features to be easily used when developers create applications that interact with the company's protocol : Create new SDK kits to enable easier interaction when using account abstraction features. Create integrations to interact with third party providers. Iterate on existing kits, adding new providers and improvements Evaluate and ideate value capture opportunities on integrations level Support external developers on SDK usage (e.g. StackExchange) Document the Product SDK integrations Collaborate with product, engineering and design teams on third party integrations to improve UX Requirements Experience with Typescript and Node.js development environments (package managers, linters, code cov, testing, etc.) Solidity/Smart contract experience Experience analyzing third party libraries being able to create a report with pros and cons Experience maintaining 3rd party libraries Experience building a SDK for multiple and interconnectedness of apps and libraries used in other live projects Experience debugging and testing reported issues Experience maintaining a project that is used by several other projects You have worked on projects that have been used in production Testing knowledge (coverage, automation, integration) Nice to have : Experience with React Experience with Web3 tools (Web3js, Ethers.js, Hardhat) Experience with Tenderly (Blockchain transactions simulation) Experience with Cypress (E2E testing) Benefits Full time permanent role Based in Berlin - Germany - Hybrid remote Open to relocation (relocation packages / VISAs are available) Hardware and home working budget Personal education and conference budgets 30 annual vacation days (on top of National holidays) Friday afternoons on research or on a side project in the company’s ecosystem Flexible working schedules and hybrid work policies