01Overview
About the company :
Sign3 is an AI-first customer intelligence platform powering fraud prevention, risk scoring, and smarter onboarding decisions for leading FinTechs, banks, and digital businesses. Our flagship SDK and APIs analyze device, behavioral, and digital footprint signals to help clients detect synthetic identities, money mule accounts, and other fraud vectorsin real time. We work with top-tier players across credit cards, lending, gaming, and neo-banking, helping them unlock trusted growth at scale. Our systems process millions of risk events per day, with millisecond-level performance and precision. At Sign3, youll get to build in a quick-paced, impact-focused workplace alongside a lean, high-ownership team.
Role Overview :
We are looking for an experienced iOS Developer with robust expertise in iOS technicals to join our engineering team. The ideal candidate will be responsible for designing, developing, optimizing, and maintaining high-performance iOS SDKs that integrate seamlessly with client applications while ensuring security, scalability, and reliability. The ideal candidate will be the one having in-depth knowledge of ios device architecture, internal device related features, ios jailbreaking and debugging tools. Experience with publishing apps to app stores is a plus.
Key Responsibilities
Design, develop, and maintain scalable, secure, and high-performance iOS SDKs using Swift and Objective-C, focused on device intelligence, risk assessment, and fraud prevention.
Build reusable and modular SDK components that seamlessly integrate into client applications while ensuring minimal integration effort and maximum reliability.
Collaborate closely with backend, Android, product, and fraud intelligence teams to deliver advanced fraud detection, device fingerprinting, and mobile security capabilities.
Optimize SDK performance, memory consumption, battery efficiency, startup time, and compatibility across a wide range of iOS devices and versions.
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