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Founding Mobile Developer

SentiLink - Remote - Remote - posted 2026-09-28

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Salary: USD 210,000 - 240,000 / annual

SentiLink is a Series B fintech company that stops over 150,000 fraud attempts and verifies 3+ million identities daily, protecting institutions and consumers. The company serves 13 of the top 15 U.S. banks and is backed by Craft Ventures, Andreessen Horowitz, NYCA, and Max Levchin. SentiLink was named to the Forbes Fintech 50 and won the 2026 FICO Industry Vanguard Decision Award. You will join the Engineering team as a Founding Mobile Developer, working closely with the NOVA squad spanning Product, Engineering, Data Science, Fraud Intelligence, and Sales. Your mission is to bring mobile device intelligence into SentiLink's products and establish the company's mobile engineering capabilities from the ground up. Key responsibilities include: - Own the design and implementation of SentiLink's mobile SDKs across native iOS and Android platforms - Develop deep technical understanding of device behavior, signals, and capabilities available across both mobile platforms, including networking and system-level functionality - Evaluate technical approaches and make decisions balancing reliability, platform constraints, performance, and maintainability - Partner with Product and Engineering to define and deliver mobile capabilities for the NOVA initiative - Collaborate with Data Science to make relevant mobile device signals available for fraud detection models - Independently investigate ambiguous mobile engineering problems using rigorous analysis and experimentation - Contribute mobile expertise and technical direction as SentiLink evaluates longer-term mobile product opportunities - Over time, help enable a mobile-optimized experience for SentiLink's dashboard This is a remote, US-based role offering the opportunity to establish mobile engineering as a foundational capability at a well-capitalized, fast-growing fintech company. REQUIREMENTS: - 5+ years of professional software engineering experience with extensive experience developing for both native iOS and native Android - Deep systems-level understanding of both iOS and Android, including networking, device APIs, operating system behavior, and platform internals - Demonstrated ability to build technically complex mobile software with emphasis on systems-level engineering rather than primarily UI development - Strong ability to independently explore and solve ambiguous technical problems with high degree of ownership and autonomy - Excellent analytical, problem-solving, communication, and interpersonal skills - Preferred: Experience building mobile SDKs, libraries, or other reusable mobile infrastructure - Preferred: Experience partnering with data scientists to provide signals or capabilities used in machine learning models

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