Senior Software Engineer - SDK

About Moloco: Moloco builds some of the most powerful AI advertising solutions in the world. Our name—short for "machine learning company"—reflects our core mission: democratizing access to the advanced AI that has historically been reserved for tech giants. Led by machine learning pioneers who built some of the most successful ad systems at Google, including YouTube's monetization engine and key search advertising technologies, we're transforming how businesses grow and compete in the digital economy. Built with AI from day one, Moloco’s planet-scale machine learning platform powers a suite of solutions for advertising growth and monetization. Moloco Ads is an AI-powered platform that delivers real business outcomes for mobile app marketers through performance-based user acquisition. Moloco Commerce Media enables retailers and marketplaces to build revenue-generating ad businesses that balance user experience and advertiser performance. Moloco is headquartered in Silicon Valley, with offices in Seattle, New York, San Francisco, Seoul, Beijing, Singapore, Gurgaon, Tokyo, Shanghai, London, Tel Aviv, and Berlin. Moloco is a truly rewarding place to work and in an exciting period of growth, which you could be a part of. Join us today and apply now! The Impact You'll Be Contributing to Moloco: You will be building Moloco's mobile Ads SDK that enables publishers (app developers) to monetize their mobile applications. Your work will make a direct impact on Moloco's revenue. This role is highly cross-functional, spanning client SDK, backend integrations, and cross-platform tooling. You may work directly with external customers and collaborate closely with our engineering teams. The Opportunity: Design, architect, and build a state-of-the-art Ads SDK for Moloco's supported platforms. Keep up to date with the latest iOS updates, and maintain the SDK. Follow and lead technology evolution and requirements across prominent app platforms, contributing to shared logic and architecture decisions that span iOS and Android. Partner with backend and infrastructure teams on the APIs, telemetry, and services that power the SDK end-to-end. Help customers with SDK integrations in various ways, including maintaining customer-facing SDK documentation. Help grow our team by providing valuable feedback and by mentoring junior engineers. Work with cross-platform teams located across our global offices including Seattle, Seoul, London, Beijing, and San Francisco to come up with new features and functionality for our customers. How Do I Know if the Role is Right For Me? Bachelor's degree or above in Computer Science or an equivalent technical degree 5+ years of experience as a software engineer, including strong experience with iOS Proficiency in Swift and/or Objective oriented programming Expert-level understanding of multithreading and networking Understanding of the internals of iOS, compilers, and optimization for lower-power devices Full-stack curiosity — comfortable working across client, server, and tooling layers, not just native UI code Experience with agile methodologies and high-level design principles A passion for mobile platforms, and staying up-to-date with the latest platform developments Preferred Skills: Experience with Android development (Kotlin/Java) or cross-platform frameworks (React Native, Flutter, Kotlin Multiplatform) — dual iOS/Android fluency is a strong plus Experience building and distributing Cocoapods, Carthage, and/or Swift Package Manager libraries Experience publishing apps to the App Store and/or Google Play Experience with MRAID and/or VAST Experience building and distributing React Native and/or Unity plugins Backend or full-stack experience is a plus Compensation & Benefits U.S.-based employees have access to medical, dental, and vision insurance, a 401(k) plan with company match, short-term and long-term disability coverage, basic life insurance, and well-being benefits and perks. U.S.-based employees also receive up to 12 scheduled paid holidays per calendar year and one Thrive Day off per quarter. Additionally, all employees have Flexible Time Off (FTO). The successful candidate may be eligible for a bonus and equity awards. Eligibility and amounts are determined by performance and the terms of the applicable plans. The location for this role is listed above. For base pay range purposes, location-based compensation is grouped into the following regions. Your region is determined by your assigned work location. Region A: Menlo Park Office, New York Office, SF Bay Area, New York Metro Area Region B: Seattle Office, Seattle, Los Angeles/Orange County, San Diego, Austin, Boston, Washington DC Metro Area, Miami Region C: All other U.S. locations Salary Ranges: Region A: $188,000 — $235,000 USD Region B: $169,200 — $211,500 USD Region C: $159,800 — $199,750 USD Moloco Thrive: Benefits and Well-Being: We take care of you and create the conditions for you to do the best work of your career. Through a lens of inclusion, we offer innovative benefits that empower our employees to take care of themselves and their families so they can do the best work of their lives. Moloco Values: Lead with Humility: Everyone’s voice is respected, valued, and heard. With humility, we become more open and accessible to each other. We win, lose, and learn together. Accountability and feedback are essential to our success. Uncapped Growth Mindset: We see all situations as opportunities to learn, grow, and improve as individuals and as an organization. We seek diverse perspectives, encourage curiosity, and promote experimentation to push the boundaries of what’s possible. Create Real Value: We pursue the most impactful opportunities with rigor and integrity. We take intelligent risks and make disciplined trade-offs to maintain deep focus. We help our customers win by delivering durable value. Go Further Together: We’re one team working towards one mission and vision. We collaborate proactively and inclusively, involving the right people at the right time and in the right way. We strive to create a more equitable workplace. We won’t let each other fail. Additional Resources: Moloco Company Blog Moloco Leadership Moloco Newsroom AI Use in Interviews Our interview process is designed to get to know the real you. Unless a round specifically includes AI as part of what's being assessed, we ask that candidates engage without AI assistance. Please review our AI Use in Interviews Policy before your interview to understand what to expect. Failure to comply with this policy may impact your candidacy. Candidate Privacy Notice: Your privacy matters to us. By applying, you acknowledge that you’ve reviewed our Candidate Privacy Notice .