App Developer (C#, Flutter) – Remote (Germany) (m/f/d)

Your mission

As an App Developer (Flutter & C#) at NeuroNation, you will play a central role in our mobile technology transition. You’ll help shape the future of our platform by building new features with Flutter, maintaining existing systems in C#, and contributing to an engaging, smooth user experience for millions of users worldwide. This is a chance to combine technical expertise with purpose-driven work that improves lives.

Key Responsibilities

• Build and maintain mobile app features using Flutter and C#
• Drive our mobile technology transition with your Flutter expertise
• Collaborate with product, design, and engineering teams to deliver seamless solutions
• Monitor app health and performance to ensure reliability and user satisfaction
• Contribute ideas and improvements that reach millions of users

Your profile

Must-have Skills• Proven experience in Flutter mobile development

• Strong knowledge of C# and object-oriented programming
• Experience developing games with complex logic (e.g., state machines, deep rule sets, dynamic gameplay mechanics)
• 3+ years of professional experience in software development
• Degree in Computer Science or related field
• Located in Germany (remote within Germany or hybrid in Berlin)



Nice-to-Have Skills

• Familiarity with Xamarin.Android or Xamarin.iOS
• Background in Unity or game development
• Experience with quality management systems (e.g., ISO 13485, MDR)

Why us?

• Work on something that truly creates value for people
• Make a significant impact on a platform used by millions worldwide
• Take on meaningful, exciting projects instead of routine corporate or agency work
• Help revolutionize health and education systems through technology and innovation
• Enjoy flexible working hours (core hours: 9:30–16:30 CET)
• Receive a BVG ticket to support sustainable and convenient commuting
• Access an Urban Sports Club membership for your well-being and work-life balance
• Be part of an open, supportive culture that values learning, growth, and collaboration

About us

For 15 years, we have been developing digital training programs that are proven to enhance cognitive performance and are easily accessible to people worldwide. Today, our health app NeuroNation is available in 13 different languages and is used by over 30 million people. Our cognitive therapy program, NeuroNation MED, has been permanently approved as a digital health application by the Federal Institute for Drugs and Medical Devices and supports approximately one-quarter of all patients with mild cognitive impairment (ICD-10 F06.7) in Germany. Our long-term goal is to establish the first virtual clinic for cognitive and mental health.

Why You Should Join NeuroNation We build science-backed brain-training and digital cognitive therapy that reaches millions of people. Your work here will shape how people care for their minds every day.

Impactful Work: Working with us means contributing to a product that profoundly impacts cognitive health. Our brain training programs, backed by cutting-edge neuroscience and cognitive psychology, are designed to enhance cognitive functions, improve working memory, and elevate our users' quality of life.

Inspiring Environment: At NeuroNation, you'll join a vibrant team of passionate and innovative professionals. We believe that collaboration and creativity thrive in a fun and inclusive environment. From team-building activities to spontaneous brainstorming sessions, we make sure that work is both productive and enjoyable.

Flexible hours: Our flexible working hours and remote work policy let you tailor your work schedule to fit your lifestyle, ensuring you can perform at your best.