Sr. Software Engineer, Supply

Moloco•Menlo Park, CA

About The Position

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 and Streaming Monetization solutions enable retailers, marketplaces, and streaming platforms 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, Bangalore, 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: As a Senior Software Engineer on the Supply and Ads Platform team at Moloco, you will own and drive measurable improvements in supply quality and performance across our ads ecosystem. Your work will directly influence how we optimize supply–demand matching, enhance advertiser outcomes, and scale our platform’s impact.

Requirements

5+ years of experience in software engineering, with a focus on ads performance optimization, supply–demand matching, or exchange integrations.
Demonstrate a strong understanding of supply, exchanges, and demand dynamics within digital advertising.
Apply working knowledge of data analysis and basic modeling (deep ML expertise not required).
Utilize experience extracting signal from noisy data and converting insights into tangible actions.
Leverage familiarity with ads inventory management and performance tradeoffs.
Collaborate effectively across cross-functional teams, including ML, Product, Creative, and Business stakeholders.
Thrive in ambiguous environments, making clear decisions from incomplete or messy data.
Communicate technical and business concepts clearly to both internal and external partners.

Nice To Haves

Preferred direct experience working with publishers or external partners (e.g., X/Twitter, Pinterest).
Preferred experience in “control tower” or system-ownership roles, or familiarity with ML systems and creative optimization workflows.

Responsibilities

Analyze large-scale supply and demand data to uncover high-impact opportunities for performance optimization.
Determine and prioritize which supply paths deliver the most value, using data-driven frameworks and heuristics.
Improve supply quality through path-level optimization, lightweight modeling, and the development of simple, actionable mechanisms.
Define and implement clear processes to classify, monitor, and act on supply path quality.
Enhance supply–demand matching by designing smarter routing and prioritization strategies.
Serve as a key connector across Machine Learning, Creative, Product, Business, and Customer Engineering teams to operationalize and scale new ideas.
Partner with ML and Creative teams to improve the quality of inputs, ensuring collaboration rather than replacement.
Engage directly with external partners and publishers as a technical and business decision guide.
Own initiatives end-to-end: from identifying opportunities, proposing solutions, implementing changes, to measuring impact.
Translate ambiguous, messy data into actionable insights and decisions that ship to production