Senior Mobile Engineer - React Native/ Expo (F/M/D)

Workload: 80–100%
Help us shape intuitive mobile experiences for a leading Swiss energy brand. Join a cross-functional team in Madrid, build with a modern stack, and make an impact for millions of users.
What you will do:
Architect, develop, and maintain scalable mobile apps with React Native (0.79+), TypeScript (5+), and Expo
Lead features end-to-end from concept to deployment with strong product context
Collaborate with product, UX/UI, and backend to craft great user experiences
Ensure code quality with clean architecture, testing (Jest), and maintainable patterns
Integrate REST APIs (e.g., Axios/React Query) and monitor performance with Sentry
Leverage modern tooling, including AI assistants (e.g., GitHub Copilot), to boost productivity
What you bring & who you are:
Must-have: 5+ years in software development, incl. 3+ years building complex React Native apps
Must-have: Strong TypeScript skills; solid ES6+, HTML5, CSS3 fundamentals
Must-have: Experience with Jest and REST API integration (Axios or React Query)
Must-have: Collaborative, proactive mindset; comfortable in agile teams; fluent in English
Ideally: Experience with Zustand state management and monitoring tools like Sentry
Ideally: German or another European language; experience in energy or utilities We encourage you to apply even if you don’t meet every single point.

Benefits:
At our company, we strive to create a culture of continuous learning, personal growth, and international community involvement. We're passionate about providing our employees with the tools and resources they need to succeed, and we're confident that you'll love being part of our team!
Working Hours
We offer flexible working hours to accommodate your work schedule. 60% on remote and 40% at our offices in Madrid, Torre Europa.

Meal allowances

You can enjoy delicious meals on us, no matter if you are working remotely or on-site.

Option to use it for public transportation or childcare instead.
Internet Compensation
We cover the cost of your home internet connection, as we understand how essential connectivity is in the modern workplace.

Microsoft ESI Certifications
Access to the ESI (Enterprise Skills Initiative) program certification, provides hands-on training for learning and enhancing technical skills and knowledge of Microsoft and Azure technologies.

Training courses
Our company is committed to helping our employees grow and develop their skills, which is why we offer a variety of industry specific training courses and a learning channel.

Gym Coverage
Stay active and healthy with our 90% coverage benefit, which provides access to the nearby gym: Forus Selection to keep you energized throughout the day

Health Insurance
We take the health and wellbeing of our employees seriously, which is why we offer a comprehensive health insurance plan and the option to extend it to your spouse and children.

About the team:

We’re a diverse, supportive, and product-focused team that values open communication, learning, and pragmatic engineering. We celebrate different perspectives and build together.
At Axpo Group, we are dedicated to fostering a culture of non-discrimination, tolerance, and inclusion. As an equal opportunity employer, we welcome applications regardless of race and ethnicity, gender identity and expression, sexual orientation, age, disability, as well as socioeconomic, cultural, and religious background. We are committed to ensuring a respectful and inclusive recruiting process and workplace for everyone.
Department
IT / Technology
Role
Permanent position
Locations
Madrid
Remote status
Hybrid
Employment type
Full-time