Part-Time iOS Developer (m/f/d) - Mission-Critical App Development

We’re looking for an experienced iOS Developer (part-time) to take technical ownership of a security- and mission-critical mobile application. If you have 3+ years of native iOS development experience and enjoy building high-reliability software that truly matters, this role offers meaningful impact and autonomy in a focused team environment.

Our app is used by thousands of recipients during real-time alerting situations—from critical infrastructure operators and emergency coordinators to on-call teams in hospitals and manufacturing plants. Your work will directly support fast, secure, and reliable communication in moments when every second counts.

• Design, develop, and maintain native iOS apps using Swift
• Take end-to-end ownership of the iOS release cycle (App Store submissions, updates)
• Debug and resolve performance, stability, and usability issues
• Build and manage CI/CD pipelines with Xcode Cloud.
• Ensure top-tier reliability, security, and adherence to iOS best practices
• Stay on top of the latest iOS tools, SDKs, and security standards

• 3+ years of hands-on iOS development experience
• Track record of shipping and maintaining apps in the Apple App Store
• Solid grasp of mobile security and app hardening techniques
• Experience with CI/CD workflows and automated delivery pipelines
• Deep knowledge of Swift (SwiftUI, SwiftConcurrency and SPM), Xcode, and iOS SDKs
• A proactive mindset, able to work independently and take full ownership

• Part-time position (~20–30 hours/week) with flexible scheduling
• Competitive compensation and performance incentives
• Modern equipment of your choice (macOS, Linux, or Windows)
• Collaborative, on-site working environment with a skilled international team
• Opportunity to build software with real-world impact in emergency communication

You'll help build and maintain a mobile app used in critical real-world situations such as:

• Notifying and coordinating emergency response teams
• Mobilizing crisis teams in hospitals and enterprises
• Escalating outages and security incidents in real time

From stability to speed, your contributions will ensure that critical messages reach the right people—fast, securely, and reliably.

Interested?

Apply now and help us deliver software that truly makes a difference.

Note: Salary range reflects full-time equivalent (FTE) compensation. Part-time salary will be prorated accordingly.