Five Binaries

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Senior Frontend Developer

  • Software Development
  • Full-time
  • Remote friendly

About us

We are Five Binaries, an infrastructure development company with the mission to continuously improve the Cardano infrastructure ecosystem and accelerate its adoption.

Our flagship product is, an instant, public and freely accessible API. removes infrastructure obstacles for developers so that they can develop (d)apps on Cardano without the need for running and maintaining additional infrastructure and tooling themselves.

With thousands of developers onboarded, we take pride in supporting some of the most prominent Cardano projects using our mission-critical infrastructure.

About the role

Five Binaries are looking for a Frontend Developer responsible for improving frontend, mainly user dashboard and overall UX.

Technologies we use and love (and sometimes hate, too):

  • TypeScript

  • Yarn 3

  • React

  • Next.js

  • Styled JSX

  • Jest

  • Cypress

  • ESLint

  • Prettier

  • GitHub Actions

  • Git

  • Nix(OS)

In this role you will collaborate with other members of our engineering team.


  • Are fully proficient in English language

  • Have experience with most aforementioned technologies

  • Have some degree of blockchain experience, exposure or curiosity

  • Have strong affinity towards learning new things and concepts

  • Additional bonus points if you can create/edit simple graphics (we have a dedicated designer)

  • Have examples of your previous work (ideally on GitHub)

What we offer

Open and friendly working environment. Contribute to a project with a huge social impact and ecological awareness.

We are a start-up, but we offer competitive salary (up to  $7,000 monthly) based on your skills and experience.