iOS Researcher

Fingerprint
Remote$174k – $235kPosted 24 February 2026

Job Description

<div class="content-intro"><p><strong>Fingerprint</strong> empowers developers to stop online fraud at the source.</p> <p>We work on turning radical new ideas in the fraud detection space into reality. Our products are developer-focused and our clients range from solo developers to publicly traded companies. <strong>We are a globally dispersed, 100% remote company</strong> with a strong open-source focus. Our flagship open-source project is <a class="c-link c-link--focus-visible" href="https://github.com/fingerprintjs/fingerprintjs" target="_blank" data-stringify-link="https://github.com/fingerprintjs/fingerprintjs" data-sk="tooltip_parent">FingerprintJS</a> (20K stars on GitHub).</p> <p><a class="c-link c-link--focus-visible" href="https://www.crunchbase.com/organization/fingerprintjs" target="_blank" data-stringify-link="https://www.crunchbase.com/organization/fingerprintjs" data-sk="tooltip_parent">We have raised $77M </a>and are backed by Craft Ventures (previously invested in <a class="c-link c-link--focus-visible" href="https://www.tesla.com/" target="_blank" data-stringify-link="https://www.tesla.com/" data-sk="tooltip_parent">Tesla, </a><a class="c-link c-link--focus-visible" href="https://facebook.com/" target="_blank" data-stringify-link="https://facebook.com/" data-sk="tooltip_parent">Facebook, </a><a class="c-link c-link--focus-visible" href="https://www.airbnb.com/" target="_blank" data-stringify-link="https://www.airbnb.com/" data-sk="tooltip_parent">Airbnb </a>), Nexus Venture Partners (previously invested in <a href="https://www.postman.com/">Postman</a>, <a href="https://www.apollo.io/">Apollo.io,</a> <a href="https://min.io/">MinIO</a>, Druva) and Uncorrelated Ventures (previously invested in <a class="c-link c-link--focus-visible" href="https://redis.io/" target="_blank" data-stringify-link="https://redis.io/" data-sk="tooltip_parent">Redis, </a><a class="c-link c-link--focus-visible" href="https://rollbar.com/" target="_blank" data-stringify-link="https://rollbar.com/" data-sk="tooltip_parent">Rollbar </a><a class="c-link c-link--focus-visible" href="https://gradle.org/" target="_blank" data-stringify-link="https://gradle.org/" data-sk="tooltip_parent"> Gradle</a>).</p> <p><em>We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Fingerprint recruiting email communications will always come from the @fingerprint.com domain. Any outreach claiming to be from Fingerprint via other sources should be ignored.</em></p> <p> </p> <hr> <p> </p> <p> </p> <p> </p></div><h2>Why We Need This Position:</h2> <p>We are a forward-thinking company dedicated to enhancing our capabilities in mobile fraud detection and prevention. Our goal is to stay ahead of competitors, ensuring our ongoing relevance in the market. We are looking for a passionate iOS Security Researcher to join our team and help us push the boundaries of what's possible in this field.</p> <p>As we aim to continuously improve our fraud prevention techniques, we need an innovative individual who can develop and enhance signals for our native iOS mobile SDK. The role involves collaborating with web and Android researchers to improve iOS Web identification accuracy and other Smart Signals, including VPN detection within iOS/Android browsers. The ideal candidate will continually explore new possibilities and develop unconventional methods to tackle fraud-related challenges.</p> <h2>Responsibilities:</h2> <ul> <li><strong>Extract Raw Information</strong>: Utilize iOS developer APIs to extract data artifacts for better and stable device posture and VPN detection.</li> <li><strong>Innovation and Security</strong>: Apply expertise to innovate and enhance our fraud prevention products, SDKs, and APIs. Develop methods to ensure competitors cannot reverse-engineer our findings.</li> <li><strong>Documentation and PoC Code</strong>: Docu ... (truncated, view full listing at source)