About Ontwikkelaars
Ontwikkelaars delivers software for clients with high expectations. Mobile apps are a growing part of our offering, and we're looking for someone who doesn't just build — they take ownership of the entire mobile experience, from UX to release.
The role
As a Mobile Developer, you build apps that people use every day. You work in React Native or native iOS/Android depending on the project. You contribute to the technical approach, align with designers and backend engineers, and make sure every release goes smoothly — including App Store and Play Store submissions.
What you'll do
- Build cross-platform or native mobile apps for clients across diverse industries
- Collaborate with backend teams to implement API integrations
- Optimize performance, load times, and memory usage on mobile devices
- Manage app releases, versioning, and deployment through the stores
- Write automated tests and participate in code reviews
What you bring
- At least 3 years of experience with React Native or native iOS/Android (Swift/Kotlin)
- A proven track record: at least one published app in the App Store or Play Store
- Knowledge of mobile performance patterns, offline-first design, and push notifications
- Experience with REST API integrations and authentication flows
- Bonus: experience with Expo, Fastlane, or CI/CD for mobile builds
What we offer
- Salary: €4,000–€6,000 per month, depending on experience
- Hardware budget: €1,500 at start — including test devices as needed
- Learning budget: €1,000 per year for courses and conferences
- 25 vacation days
- Fully remote with flexible hours
How to apply
Send your CV and a link to apps you've built (App Store or Play Store) to careers@ontwikkelaars.nl. Tell us briefly about the most challenging technical decision in that project.
Department
Engineering