Senior iOS Engineer (f,m,d)

Job description

What if we could actually do something about climate change? Immediately. Effectively. Collectively. That’s our vision: Make powerful, measurable climate action available to everyone — and then scale it up!


We are a team of mission-driven designers, engineers, and changemakers with a track record of building category-defining products, backed by Berlin’s top early-stage funders. In 2020, we launched our groundbreaking solution to empower millions to act as one united force for the planet. Now we’re building on that strong foundation.


Climate change is the biggest challenge humanity has ever faced. Join the fight and put your talent to work for good! We are right now looking for an experienced and product-oriented developer to complement our iOS dev team. With multiple best-in-class mobile products on the team record, we’re looking for top talent to match this high standard and push things even further together. The ability to work fully self-sufficient in a rapidly changing environment is equally core to the position as adjusting roles through the company’s life cycle.


What we offer 

  • Ownership of a product with social impact and global reach.
  • Competitive salary and equity package
  • High degree of autonomy
  • State of the art work station… you tell us what you need!
  • Free gym membership, metro ticket, and compensation of your personal CO2 footprint
  • Flexible hours and a remote-friendly environment
  • Relocation assistance
  • Become part of a creative, friendly and purpose-driven team
  • These are the early days — your input will make a real difference!

Job requirements

What we’re looking for

  • You have an engineering background and at least 5 years of relevant experience, ideally in a Start-up environment.

  • You have excellent knowledge of Swift, and a good understanding of design patterns and software architectures.

  • You have deep understanding of UIKit in code

  • You love pairing on daily base with your colleagues

  • You have a passion for detail and clean code, but are pragmatic at the same time

  • Mentoring younger developers and letting them benefit from your experience

  • You know how to handle media playback. Experience with handling multiple video players simultaneously is a plus.

  • You are passionate about pushing the envelope on great UX, and understand the role of tech in a holistic framework.

  • You are calm and focused under pressure and re-orient quickly in changing environments. When you don't fully understand something, you take it as an opportunity to learn and grow.

  • You believe in clear and honest communication as the basis for effective and joyful teamwork. You consider work-life balance essential to long-term happiness and productivity.

What you’ll do

  • Work closely with the product team on existing and new app features

  • Collaborate on architecture design and help shaping our iOS ecosystem tech stack

  • Ensuring a high standard when it comes to product quality and backing it up with a solid test infrastructure

  • Help shaping a stellar app experience with a sense for detail on smooth transitions and animations

  • Cooperate in depth with your teammates to teach and learn something new every day

  • Working closely together with our Android and backend teams and collaborating on shared code (Kotlin multiplatform mobile)

  • Take ownership of the whole app including CI, App Store Distribution and external services and tools


What our tech stack looks like

  • A modern, Swift powered project without legacy code :-)

  • MVVM pattern powered by Redux style data layer

  • The backend runs on a Spring Boot Stack (Kotlin)

  • Our Web stack utilizes Plain Vanilla HTML/JS and React

  • Furthermore, we work with GitLab CI/CD, Fastlane, Docker and everything that helps us get the job done.


We are committed to diversity and equity and seek to build an inclusive workplace that welcomes people from all different backgrounds.


If you’re looking for an incredible opportunity, a great place to work, and a chance to make a difference, we’re excited to consider your application!

A note on Covid-19 and WFH

We want you to stay safe during the Covid-19 pandemic! Therefore we are currently working from home and will provide all the office equipment you need to make your home office experience as productive and enjoyable as possible.


Once everything is back to normal we are looking forward to meeting you at our beautiful office in Berlin Mitte, featuring unlimited fresh fruits, delicious coffee, and a canteen with daily veggie options. Wanna make remote working a long term thing? We’re open to discussing that too.