React Native Engineer (m/w/d)
sonnen
Company Overview
Sonnen GmbH, a subsidiary of Shell
Wildpoldsried, Bavaria, Germany
2010
Over 700 employees worldwide (as of 2020) (source: wikipedia.org). Revenue data is not publicly available as the company is private.
What They Do
Sonnen GmbH is a leading company in the field of intelligent lithium iron phosphate (LiFePO4) home storage systems that are safe and sustainable. The products are designed to store excess energy from photovoltaic systems and promote energy independence for users. Key products include the modular sonnenBatterie, available in various sizes, as well as solutions like sonnenCommunity, which allows users to share renewable energy (source: sonnengroup.com). Sonnen has evolved from a battery manufacturer to an energy provider and operates one of the largest virtual power plants in the world, based on home storage systems.
Projects & Track Record
Notable projects by Sonnen include the sonnenCommunity, which connected over 50,000 households by 2020, enabling them to share renewable energy in a decentralized manner. By 2020, over 90,000 sonnenBatterien had been installed worldwide, allowing households to act as "small power plants" (source: sonnengroup.com). The production facilities in San Jose, California, and Atlanta, Georgia, support the U.S. markets and research and development. Sonnen has also partnered with companies like ES Solar and Haas Home Technologies to offer integrated solar battery solutions.
Recent Developments
In the past two years, there have been no major announcements or acquisitions; however, the acquisition by Shell in 2019 was confirmed in July 2023 (source: kfw.de). Sonnen continues to have over 90,000 installations and offers a standard 10-year warranty on its products. The ten-year anniversary celebration in 2020 highlighted the company's achievements, including connecting over 50,000 households and reaching a workforce of 700.
Working There
Sonnen offers a variety of roles in engineering, manufacturing, sales, and energy supply. The workforce has grown from 200 to over 700, indicating increasing demand in technical and expansion-oriented departments (source: wikipedia.org). The company culture fosters innovation and a decentralized team that operates in the rural environment of Bavaria while also acting globally. The headquarters is located in Wildpoldsried, where the core production of 1,000 units per month takes place.
Contact
Last updated on 2025-12-26 | Report an issue
Job Description
At sonnen, we're driven by a clear goal: creating a future powered by clean, affordable energy for everyone. That's why we make our customers independent - not only from fossil fuels, but also from rising electricity costs.
The key to this independence is our intelligent, all-in-one energy system. It combines solar panels, battery storage, energy tariffs, and wallboxes - all developed and manufactured in Germany.
As the first and only provider in Germany, we also connect thousands of home batteries into one shared network: the sonnenVPP, our industry-leading virtual power plant.
In short: every day, we're working to shape the energy future. And we'd be thrilled to have you join us!
Who are we looking for?
We are seeking a talented and enthusiastic React Native Developer to join our agile, cross-functional team. You will play a crucial role in driving the digitalization of the energy industry. If you are passionate about creating exceptional digital experiences and thrive in a collaborative, innovative environment, we want to hear from you!
What you will do to drive the energy transition
- Participate in the entire development process, including refinements, code reviews, tests, deployment and monitoring on production.
- Engineer high-quality mobile apps for iOS and Android, focusing on robust architecture and superior performance.
- Deliver well-tested, reliable products that meet our quality standards.
- Inspire and mentor your team, fostering an environment of excellence and enjoyment.
- Collaborate with cross-functional teams in a DevOps setup, adhering to our "You build it - you run it" philosophy.
What you will need on that journey
- At least five years of experience as a mobile app developer.
- At least three years of experience in different test automation strategies using test frameworks like Testing Library or Appium.
- Excellent knowledge of React Native, Typescript and GraphQL, with a solid understanding of Swift and Android Java / Kotlin.
- Strong understanding of security best practices and modern engineering methodologies.
- Commitment to quality, with experience in code reviews, extreme programming methods, and test coverage tracking.
- Experience with AWS, Fastlane, Sentry, LaunchDarkly and Firebase is a plus.
- Ability to comfortably express your ideas and arguments in good spoken and written English.
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!
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About the role
December 2, 2025
Full Time
Company
January 9, 2026
On-site
- Cairo, Egypt
5+ years in mobile app development
UTC+02:00
Apply now
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