Full Stack Developer (m/f/d)

  • Qubit9 GmbH
  • Hamburg, Germany
  • Nov 11, 2021
Full time Engineering Engineering - Backend Engineering - Frontend Engineering - Mobile

Job Description

As a Full Stack Developer (m/f/d) located in Hamburg, Germany you develop from scratch a new product. You are responsible to develop and maintain a scalable tech stack. Besides that, you design and implement important and technically challenging tools/systems. You should share the same values about a clean environment, high code quality, low bug tolerance, and usage of the latest technologies with us. The core of your job is to implement new ideas, to co-develop the product, and to provide the best UX to our clients.

Your Responsibilities

  • Help to make critical decisions on the tech stack
  • Design and build tools to ensure our systems are virtually limitlessly scalable
  • Work in close collaboration with the PO and engineers on architecture questions
  • Design and build components/tools/systems such as user login systems, token custodial solutions, backend monitoring, automated testing, and much more
  • Experience in building User-Journeys
  • Building Mock-ups
  • Designing Usability-tests
  • Introduce tools and workflows for version control and code quality assurance
  • Setup a multi-level quality assurance system including automated testing, QA within the team supervision, and similar measures
  • Read documentation, source code, and consult with protocol maintainers
  • Brainstorm with the founders and the PO on how to overcome technical challenges smartly
  • Play a crucial role in the fulfillment and constant refinement of our highly ambitious vision

You should bring

  • Experience of large technological challenges
  • Background in working with large engineering teams
  • Senior-level React/Redux (or another front-end library) development experience
  • Familiarity with databases and full-stack frameworks (NodeJS/Express, CSS, HTML, Typescript)
  • Experience with Blockchain specific frameworks and languages (i.e. Solidity, EVM, and/or smart contracts)
  • Experience with BackEnd technologies such as Rust
  • Hands-on attitude, top coding skills
  • Experience in working in an agile environment
  • Ability & willingness to learn new coding skills as needed
  • You are able to succinctly & clearly communicate your ideas
  • Good design understanding, some UI/UX experience more generally
  • You stay up to date with the latest releases & best practices
  • You know how to write bug-free & secure code, and are familiar with standard ecosystem tools & security audit techniques
  • Ensuring Code Quality
  • You have excellent written and verbal communication skills


  • Being with the company from the very beginning
  • Power to influence the company’s culture and the opportunity to bring your own ideas
  • Working together with top talents to become the next big thing in blockchain
  • Experience truly fast growth - work with us on the journey to become THE next impactful player in the blockchain industry
  • A company culture which is supporting work-life balance
  • In our office, you find motivating colleagues, healthy brain foods (such as a variety of berries, nuts, yogurt, or avocados), good coffee, and no bad stuff
  • Flat hierarchy where all colleagues together work on the same mission
  • Shape our great place to work together with us

Next Steps:

  1. Please submit your Linkedin Profile or CV together with the application form
  2. After checking your application, we invite candidates fitting our requirements to a first screening during which we will also tell you about us.
  3. When passing, we will initiate further interviews to get a better picture of you and your skills albeit striving for a fast and lean process.
  4. Very soon you might get an offer call, a written offer letter, and one signature later you join the team.