Senior Front-End Developer (React)

Aleph Zero was established in early 2018 with a vision to provide the first truly scalable, decentralized, and open-sourced DLT ecosystem. After 6 years on the market, we’re confident that we’re going in the right direction.

We're building a new blockchain platform using novel protocols published in scientific papers. We work on problems in the fields of cryptography, concurrent algorithms, and distributed systems. We use a mixture of technologies, with Rust for our backend systems and TypeScript for our frontends. We have a flat hierarchy and we make collective decisions where everyone is equally heard and listened to.

If you want to build with us…

You will work in a cross functional team, along with fellow engineers, mathematicians, cryptographers designers and product people.

You will have ample opportunities to learn - from your colleagues, during our learning and technical sessions, on conferences.

You will be able to contribute to how we architect, deploy and monitor our systems.

You will be given full autonomy in how to reach your goals. With great autonomy comes great responsibility!

If that sounds exciting you might just have found the right place and we welcome you!

• At least 3 years of experience in React or at least 5 years of experience in any other front-end (FE) environment (with at least 1 year of recent experience in React)
• At least 3 years of experience writing in TypeScript
• Experience in various state management, data fetching methodologies, and libraries
• Experience with setting up FE projects from scratch
• Deep experience in writing automated tests with module mocking
• Understanding of how the event loop works
• Understanding of how browsers render content
• Knowledge of factors influencing performance and loading times, and how to address related issues
• Ability to execute performance profiling in browser DevTools
• Deep understanding of REST with at least a basic understanding of GraphQL
• Familiarity with Node.js
• Deep knowledge of CSS with responsive web design (RWD), including modern CSS APIs
• Ability to set up a frontend CI pipeline
• Teamwork experience, including task management and code collaboration, and ease in sharing knowledge
• Ability and eagerness to learn new concepts and catch up with new technologies
• At least B2/C1 written and spoken English 

• Experience with, knowledge of or demonstrated interest in blockchain and cryptography fundamentals.

• Overlook the frontend work for our wallet team
• Setup greenfield project including CI/CD
• Synchronizing information with project stakeholders to make sure that technological and functional requirements are met
• Being a proactive member of the team

• Competitive salary and Aleph Zero tokens from the team token allocation
• Ability to work from offices in Poland, Switzerland, Warsaw, or remotely
• Private health insurance; 26 paid holidays on a B2B contract, in case of an employment contract dependent on the country that you reside in
• Sports package (depending on your location)
• Flexible working hours and a flexible vacation policy
• A fast-paced tech startup working environment
• Involvement in an original, innovative, and well-funded project
• New challenges and growth opportunities are waiting for you
• A culture of inclusion: everyone is heard, and their opinion counts

We want you to bring your whole human self to work. We do accept everybody as they are on an equal opportunity basis without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, marital status, or disability status