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

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

The ideal candidate must demonstrate strong technical leadership in mobile app development, with a focus on quality, performance, and maintainability. They should effectively collaborate across teams, mentor peers, and drive a culture of testing and continuous delivery.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mobile App DevelopmentAutomated TestingContinuous DeliveryAPI DesignCloud ExperienceDevOpsCross-Platform DevelopmentPerformance OptimizationRelease ManagementDebugging

Soft Skills

Open CommunicationProactive CollaborationMentorshipTeam BuildingCraftsmanshipAdaptabilityProblem SolvingEmpathyWritten CommunicationSpoken Communication

Tools & Technologies

Google CloudFlutterBackend TechnologiesFrontend TechnologiesInfrastructure ToolsTesting FrameworksVersion Control SystemsCI/CD ToolsMobile FrameworksDevelopment Environments

Industry Keywords

Climate TechHardware-Connected AppsUser ExperienceField FeedbackNon Digital-Native UsersRemote WorkAsynchronous CommunicationSoftware QualityMobile FeaturesTechnical Direction

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