Senior Software Engineer - SDK

About Moloco:

Moloco is an AI-native performance advertising company, bringing the power of AI advertising to the open internet. Founded in 2013 by machine learning engineers who had built AI advertising systems inside the world's largest technology companies, Moloco began from a shared mission: to build that same engine for the open internet.

Today, Moloco is one company with two businesses, built on the same compound AI system. Moloco Ads is our AI-native performance advertising platform, helping mobile app marketers acquire, retain, and re-engage high-value users across the open internet. Moloco Commerce Media is our AI-native retail media platform, enabling retailers and marketplaces to turn their platforms into thriving ad businesses. Both are powered by CARA (Compound Ad Recommendation Architecture) , the AI system behind every Moloco product.

At Moloco, we bring together those who've already solved hard problems and those with the drive to. Here, we work on some of the complex problems in AI advertising, at a scale and level of sophistication very few companies can offer. Come build what's next.

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

Supporting Your Best Work and Your Best Life:

Our benefits are designed to support our people in doing their best work and living well, at work and beyond. Benefits vary by country, employment type, and eligibility. Connect with a recruiter to learn more about benefits in your region.

Moloco Values:

• Lead with Humility: Everyone’s voice is respected, valued, and heard. 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 intensity and rigor. 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 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 .