Senior iOS Engineer

Summary

Join Fingerprint as a Senior iOS Engineer and play a key role in shaping the future of mobile device intelligence and fraud prevention. Lead the development and evolution of iOS products, including the Fingerprint iOS PRO SDK, OSS SDK, and Showcase App. Build cutting-edge detection signals, optimize performance, and deliver an exceptional developer experience. Collaborate with product managers, backend engineers, and data analysts. Research and prototype new methodologies to enhance fraud prevention capabilities. Conduct post-deployment analysis and improve server-side logic and detection systems. Work cross-functionally to deliver impactful features. This is a high-impact role at the intersection of mobile engineering and security for our EMEA team.

Requirements

• 5+ years of hands-on iOS development experience in a senior-level capacity
• Located in EMEA
• Strong foundation in Information Security, with prior experience as an iOS engineer in a security-focused organization or on a security-centric product
• Demonstrated ability to build native iOS applications and SDKs from the ground up
• Proficiency in Swift and the iOS SDK; hands-on experience with SwiftUI for UI development
• Data-savvy mindset with a comfort level working with product and data teams
• Excellent written and verbal communication skills; thrive in a remote-first, async team environment

Responsibilities

• Lead the development and evolution of our iOS products
• Fingerprint iOS PRO SDK – Design and implement detection signals; improve performance, stability, and reliability
• Fingerprint iOS OSS SDK & Showcase App – Maintain and advance our open-source offerings
• Fingerprint Device Intelligence Demo App – Build new features and implement UI screens from Figma designs using SwiftUI
• Research and prototype new methodologies that enhance our fraud prevention capabilities, efficiency, and technical edge
• Conduct post-deployment analysis on collected data and collaborate on improving server-side logic and detection systems
• Work cross-functionally with backend engineers, PMs, and security researchers to deliver impactful features end-to-end

Preferred Qualifications

• Experience with GitHub Actions
• Familiarity with obfuscation techniques
• Open-source contributions—share your GitHub profile if applicable
• Interest in expanding into backend development, such as writing backend detection logic
• Engagement in the InfoSec community through conference speaking, writing, or active participation