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Javascript Developer - Smart Contract Tooling (m/f/d)

Parity Technologies

Smart contracts in Substrate are designed with safety, efficiency and conciseness in mind. Having WebAssembly as a compilation target, Parity developed a Rust-based smart contract language called  ink! while giving developers the option to write contracts in other languages, as well. A range of contract examples in ink!, Rust, AssemblyScript and Solang can be found in the `pallet-contracts-waterfall` repo.

Have a look at our current documentation to see what you’ll be working with:

Polkadot-JS API and toolset docs: https://polkadot.js.org/

Smart Contract Tutorial: https://substrate.dev/substrate-contracts-workshop/

Getting Started with Smart Contracts on Substrate: https://www.youtube.com/watch?v=-EJHu0u6hT8

ink! Smart Contracts on Substrate: https://www.youtube.com/watch?v=CZH5bGG761U&t=3

Your Background:

  • Experience in working with a range of different JavaScript APIs and Frameworks

  • Ability to learn new technologies and concepts quickly

  • Ability to come up with technical solutions and application architecture

  • Ability to work autonomously, be proactive, prioritize, communicate, and function in a distributed team.

  • Passionate about bringing the Web 3 vision of a decentralized web to the world.


  • Former involvement in Open Source Projects

  • Knowledge in blockchain technologies or Smart Contract development.

  • Knowledge in another programming language than JavaScript/ TypeScript

  • Experience with working on the Node database layer (eg. Express, MongoDB, CouchDB, GraphQL)

Relevant tech-stack we’re currently using:

JavaScript (ES2015+), TypeScript, WebAssembly, Node, React, Electron, RxJS, Jest, GitHub, GitLab, Vuepress


  • Working at Parity means focusing on the stuff that counts: building of the most cutting-edge technology for the future web. Our teams enjoy a high degree of trust, freedom and autonomy to achieve that goal.

  • Because we value initiative and learning, we've defined a generous personal budget to attend conferences or skills courses of your own choosing. We think you know what's best for you!

  • Parity is a diverse company with people from various countries and we will support you with German language courses and relocation where needed.

  • Many of us who collaborate do not work in the same place. We have a remote-friendly company setup.

  • Bringing the team together is something we value a lot, so we used to regularly go on team retreats and are planning to do so again, once the international health regulations allow it,  

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