Team Lead Backend Engineering - Delivery Platform (m/f/d)


Berlin, BE, DE Wildpoldsried, BY, DE

Stellen-ID:  4263

At the earliest date possible we are looking for support for our #teamsonnen

Clean and affordable energy for all is one of the greatest challenges of our time. Sonnen has been committed to this mission since 2010 and is now represented in Europe, the USA and Australia with over 1,000 team members globally. In Germany, our offices are located in the beautiful Wildpoldsried (Allgäu) and the vibrating heart of Berlin Kreuzberg.

At sonnen, we are building the energy system of the future. To this end, we are developing new technologies and business models that have not existed before. Whether intelligent power storage, virtual power plants or digital services - we set the trends of a new energy world. That means, among other things, the inexpensive production and storage of renewable energy and the intelligent networking of producers and consumers. sonnen thereby gives people around the world the opportunity to become independent of fossil fuels and conventional energy supplier.

We are growing steadily and are looking for people who want to join us in our vision of clean and affordable energy for all while making a positive impact on climate change.

As the Team Lead Backend Engineering (d/f/m) you will lead a team of backend and full-stack engineers. You will guide the engineering team in making the best architectural and design decisions helping the product owners of the Delivery Platform department in developing high-end products and helping sonnen to scale. Your leadership and technical expertise will play a crucial role in shaping the future of the company and its efforts to drive the energy transition.


What you will do to drive the energy transition:


  • You'll help your team members excel by providing mentorship, guidance, and support, enabling them to reach their full potential as engineers.

  • You'll oversee the hiring process and ensure the team's growth by helping individuals chart their career paths and develop their skills.

  • You'll coach your team to improve the quality of outcomes, technical alignment, and growth, facilitating rapid iterations.

  • You'll play an active role in maintaining the quality of the software engineering process, ensuring that best practices are followed.

  • You'll provide guidance on architectural design standards and promote adherence to agile software engineering principles.

  • You’ll lead your team to foster collaboration both within the Delivery Platform department and beyond, encouraging cooperation with other teams.

  • You'll work closely with other leaders, such as the VP Delivery Platform, product owners, scrum masters, and fellow team leads, to align on strategies and goals.


What you will need on that journey:


  • You are an experienced leader who can effectively communicate, support personal growth, and mentor team members to enhance their technical skills.

  • A strong track record of developing software solutions, ideally using the technologies such as Python, Django, AWS Lambda, Terraform, PostgreSQL, Sentry, GitLab, and/or GitHub.

  • A good understanding of microservices and clean code principles will enable you to guide the team in building scalable and maintainable systems.

  • Proficiency in different testing strategies to ensure the reliability and stability of applications and components.

  • Excellent written and verbal communication skills are crucial for effective collaboration within our international team.

  • Fluency in English is required, and additional languages could be advantageous.

  • Passion for the Mission: Enthusiasm for working in a dynamic team with a vision to digitize the energy transition is essential for this role.

What you can expect at sonnen:

  • An atmosphere of openness, tolerance and mutual respect, where innovation is expected and encouraged
  • The option of working full- or part-time for every position
  • 30-32 days annual vacation with increasing team membership
  • Leasing of company (e-)bikes with up to 40% discount
  • Flexible working hours and option working mobile
  • Mental health and wellbeing offering for you and your family members
  • Free German, English as well as online yoga and body art courses
  • Soft drinks, fruits and cereals in our offices
  • Use of sports memberships (EGYM Wellpass, only €29.75/month) and discounts for other services and products 
  • Employee discount on our electricity tariff
  • Regular team and company events
  • We love dogs! You too? Feel free to bring your fellow friend to our offices


You feel we are a match? Apply now and help us to shape the energy transition together. We look forward to welcoming you to #teamsonnen!

sonnen - energy is yours!

Stellensegment: Testing, Manager, Technology, Management