Principal Mobile Engineer

You're not looking to just keep things running — you want to build something that matters. As our Principal Mobile Engineer, you'll shape the future of our mobile apps and lead the greenfield build of our iOS app with Kotlin Multiplatform (KMP). You'll turn complex challenges into intuitive, secure, and delightful experiences that help fight greenhouse gas emissions.

Key Responsibilities

• Lead the development of our new iOS app with KMP, setting the technical direction and foundations.
• Own and drive product features from ideation to deployment.
• Ensure operational stability by troubleshooting incidents and resolving issues.
• Communicate effectively with customers to understand their needs.
• Actively contribute to team processes and foster a positive, collaborative work culture.

This role is right for you if you...

• Are driven by excellence and enjoy working autonomously while staying aligned with team goals.
• Enjoy collaborating with customers and stakeholders, simplifying technical challenges into actionable solutions.
• Value balancing technical and economic constraints to meet project goals.
• Have a passion for mentoring and fostering a collaborative, high-performance work environment.
• Appreciate direct feedback and are skilled at giving constructive input to your team.
• Want to make a tangible, positive impact on our planet .

Requirements

Skills & experience you will need

• Strong Android native development skills using the latest tech stack (Kotlin, Jetpack Compose, …)
• Strong iOS experience
• Solid understanding on different API formats and data storage technologies
• Ability to independently drive product features from concept to production.
• Excellent communication skills for collaborating with customers and internal stakeholders.

Great to have

• Experience using Kotlin Multiplatform
• Experience working with IoT devices
• Experience shipping mobile Apps in B2B environments
• Skills with DevOps & CI/CD pipelines

Benefits

• Remote Working: Work from our hubs in Hamburg or Munich, or remote from Germany
• Unlimited Vacation: Take as many holidays as you need — we trust you to recharge when it matters most.
• Flexible Working Hours: Work during the hours that align with your peak performance and lifestyle.
• Mental Health Matters: Access 1:1 psychologist sessions and workshops through our Bloom partnership.
• Professional Growth: Use a dedicated development budget to enhance your skills and career.
• Stock Option Plan: Receive virtual stocks as a reward for your trust, effort, and vision alignment.
• Unite, Recharge, Celebrate: Join in-person team retreats to connect and have fun.
• Explore Germany: Enjoy the Deutschlandticket for flexible public transportation access.