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1KOMMA5°

Senior Software Engineer – Mobile

1KOMMA5°

Senior Software Engineer developing the Installation Manager mobile app for energy startup 1KOMMA5°. Join a cross-functional team to build scalable software for renewable energy solutions.

Posted 6/27/2026full-timeRemote • 🇩🇪 GermanySeniorWebsite

Tech Stack

Tools & technologies
CloudFlutter

About the role

Key responsibilities & impact
  • Shape the technical direction of the Installation Manager: architecture, release quality, performance, and long-term maintainability
  • Ship reliable, well-tested mobile features and help the team build a strong automated-testing and continuous-release practice
  • Mentor and grow the engineers around you, sharing what you know across team boundaries (not just within your own role)
  • Work closely with product, design, and backend to turn real field feedback into a better product
  • Help debug the messy, interesting problems that come with hardware-connected apps in the real world

Requirements

What you’ll need
  • Solid experience building, shipping, and maintaining mobile apps in production (any stack; Flutter not required)
  • A genuine testing mindset: you've built or driven automated testing and continuous delivery
  • You communicate openly and proactively, and you thrive in a remote, async team
  • You lift the people around you, and you care about the craft as much as the outcome
  • Good spoken and written English
  • Nice to have (truly optional, please apply without these):
  • Flutter, or other cross-platform mobile experience
  • Experience building for non digital-native users (our users are out in the field, not at a desk)
  • Cloud / DevOps experience, ideally Google Cloud
  • API design experience, or breadth beyond mobile (backend, frontend, infra)
  • Interest in climate tech

Benefits

Comp & perks
  • You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen
  • With your work, you accelerate the "energy transition" and hence have a direct impact on our climate
  • Work with and learn from other super-smart colleagues
  • You will enjoy direct contact with core decision-makers
  • You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups
  • You work remotely (Germany-wide), with offices in Hamburg, Berlin, or Munich
  • Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass
  • Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time

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Hard Skills & Tools
Mobile App DevelopmentAutomated TestingContinuous DeliveryAPI DesignCloud ExperienceDevOpsCross-Platform DevelopmentPerformance OptimizationRelease ManagementDebugging
Soft Skills
Open CommunicationProactive CollaborationMentorshipTeam BuildingCraftsmanshipAdaptabilityProblem SolvingEmpathyWritten CommunicationSpoken Communication