Project Development Engineer leading project design and development for U.S. federal government sites. Collaborating on facility improvements predominantly in the National Capital Region with focus on HVAC and mechanical systems.
About the role
- Mobile Developer creating secure login apps using React Native for heylogin. Collaborating with cross-functional teams in a hybrid environment based in Braunschweig, Germany.
Responsibilities
- Build mobile security apps — with you as our React Native hero!
- With React Native you turn security into a smooth, mobile, and intuitive experience while meeting the highest security standards.
- Core areas: React Native features: native login flows, biometric integration, and security features — seamless across iOS/Android.
- Mobile architecture: expand our cross-platform UI and optimize performance for millions of logins.
- Security first: secure storage, app hardening, cryptography integration — your code will stand up to attackers.
- Team power: work directly with web, backend, and security teams — your apps will sync perfectly.
- UX polish: testing, debugging, and App Store optimization — guaranteeing a five-star experience.
Requirements
- Proven experience with React Native and cross-platform mobile development (iOS/Android)
- Mobile security expertise — secure authentication flows, biometrics, secure storage, and basic cryptography
- Fluent in German and English (C1+)
- Based in the Braunschweig area — regular on-site presence required (hybrid model)
- Developer mindset — structured, performance-oriented, and user-focused
Benefits
- Fair compensation, Braunschweig lifestyle, and flat hierarchies
- 30 days of vacation plus flexible working hours
- Training budget and attendance at mobile conferences (React Native meetups, etc.)
- MacBook and modern equipment
- Small, dynamic team — short decision paths and direct responsibility
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