Mobile Developer

Development and maintenance of our native Android app in Kotlin, from design to Play Store release

• Hands-on experience integrating mobile applications with embedded devices
• Implementation of adaptive user interfaces based on Figma designs
• Contribution to key technical decisions, clean code and code reviews
• Stay updated with the latest Android development trends and technologies
• Close collaboration with the iOS, backend, hardware and QA teams, An attractive package: In addition to the gratifying salary, we offer a robust company pension plan to help you build a secure financial future and a Company Health Insurance Plan with a coverage that goes beyond the basics, providing you with additional benefits to support your health journey.
• Access to Top-notch IT and Office Equipment: Operating system and hardware of your choice, additional tech equipment that you need, screens, you name it - we want to enable you to do your best work.
• Stay Active and Healthy with our Gym partner: Maintain your well-being with our health and sports offer.
• Feeling hungry? We’ve got you covered! Fuel your workday with a delicious lunch from our diverse menu selection. Enjoy fresh fruit and cereal anytime you need a snack. Plus, you’ll find chocolates in every corner of our office to satisfy your sweet tooth.
• Personal Development: Expand your skills and knowledge through workshops, conferences, language courses, advanced training, and webinars.
• Convenient Location and Transportation Options: Our office is conveniently located in the woods and easily accessible by public transport, car, or bicycle, making your commute a breeze and we’ve got you covered with covered bicycle parking and warm showers available onsite.
• Enjoy 30 days of annual vacation, giving you ample time to relax, recharge, and explore new experiences.
• Stay Active and Eco-Friendly with Bike Leasing: Stay active with our bike leasing program, offering a convenient and sportive commuting option.
• Hybrid/Onsite Working: We offer flexible hybrid/onsite working arrangements allowing you to work remotely and dedicating three days to onsite
• Discounted Public Transport Tickets: Save money on public transportation with our discounted public transport tickets, making you wanting to travel more.
• Make an impact! Work in an innovative, deep tech product that adds value to the telecommunication world! Become a crucial part of something new, big and exciting where you can truly make an impact!

At least 3 years of professional experience in native Android development with Kotlin

• Solid knowledge of Jetpack Compose, Material3, Coroutines/Flow and modern architecture patterns
• Experience in using tools such as Android Studio, Git, Jenkins Pipelines
• Confident in testing (unit) and agile development methods (Scrum)
• Experience with AI-assisted development tools (e.g. Copilot, Claude) and critical evaluation of their output
• Advantageous: Kotlin Multiplatform, Firebase, Java, iOS/Swift familiarity
• Strong language skills - German at A1 and English at C1 level in written and spoken. What matters most is confident communication in both languages, in writing and speaking

At Flexoptix GmbH, we’re more than just a workplace - we’re a community dedicated to fostering growth, well-being, and success. When you join our team, you become part of a supportive environment where your contributions are valued, and your potential is nurtured. Here’s why you’ll love being part of our team, Would you like to find out more about Flexoptix GmbH as an employer? Then take a look at LinkedIn, Kununu, Instagram or Facebook., Flexoptix is a telecommunications company based in Darmstadt. Since 2008, Flexoptix has been successfully developing and marketing solutions for network transceivers under the motto “Less Bullshit more Engineering”. We offer a high-end range of products, services and applications for transceivers tailored to meet the specific needs of our customers. Known for our innovation with many industry-first solutions, Flexoptix continually invests in research and development to stay ahead of industry trends. At Flexoptix, we don’t just provide solutions-we engineer success.

Our Flexoptix team is international and welcoming with around 100 colleagues from over 15 countries, we cherish and foster different viewpoints and experiences each person brings.