Frontend Flutter Developer: 50–80% (m/f/d)

Permanent employee, Part-time · Remote, Konstanz

Background
Join Next Level Coffee, the trailblazers behind nunc., our cutting-edge IoT coffee ecosystem. We're on a mission to revolutionize home coffee experiences with our premium products—coffee machine, grinder, app, and more. Launching in 2025, nunc. combines innovation and convenience for coffee lovers everywhere. With strong financial backing and a dynamic team, we're poised for rapid growth. Ready to transform the way the world enjoys coffee? Join us!
So what is the role?
You support our team by developing and refining user interfaces for our cutting-edge IoT applications across various platforms, including web, mobile, and machine-embedded interfaces:
  • Your daily tasks include implementing pixel-perfect designs in Flutter and contributing to the user interfaces of our Angular or Next.js-based web applications.
  • You are responsible for creating intuitive and engaging user experiences that delight our customers.
  • You take on technical challenges in UI/UX optimization, performance enhancement, and cross-platform compatibility.
  • In the area of feature implementation, you assist with maintaining a high-quality codebase, ensuring scalable and maintainable solutions.
  • You collaborate closely with a small, dedicated team of 2–3 developers to drive the evolution of our IoT products.
This is the next level you achieve after 6 months:
  • You have successfully implemented key features for our IoT machine, grinder, and web app interfaces.
  • Significantly improved UI performance and responsiveness on all platforms.
  • You know our architecture by heart and confidently contribute across the Flutter and web stack.
  • You have grown into a vital member of the team, delivering consistently high-quality work.
What you need for this role:
  • A strong technical background, whether through a degree in Computer Science, a completed apprenticeship, or a proven self-taught track record with hands-on projects.
  • You have more than 2 years of practical experience with Flutter and Dart.
  • Proficiency in UI/UX principles and creating responsive, user-friendly interfaces is essential.
  • Experience with frontend frameworks like Angular or Next.js is a strong plus.
  • You have strong verbal and written communication skills in English (German is a plus).
What we deliver on:
  • We want to do great stuff with a great team – this only works with a #nofilterand #nobullshitattitude.  
  • Huge opportunity to join early stage and build a company – you work on our common vision, product and values!  
  • You are best in class – and are enabled to make best in class decisions.   
  • We love working visually and with the end result in mind, then get there by building fast and learning fast.
  • We love humans, we love coffee and working with the coffee community, from farm to cup.
  • Hybrid working - you work remotely, but once a month we meet for 2-4 days in Konstanz, the Alps, or Mallorca. 
  • Your home office setup tailored to your workday needs.
  • Fitness programs, childcare subsidies, a home coffee supply, and many more benefits await you. 
About us
Next Level Coffee aims to bring the best coffee to the best place: Home. In 2025, we plan to launch the nunc. system (machine, grinder, app, etc.). We have strong supporters, so our financial funding is secured for all necessary activities. Join and create a fantastic brand, product & company!
Your application!
We are very happy about your interest in a cooperation! Please fill in the corresponding fields and we will contact you as soon as possible.
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