Data Scientist II, MCM

SQL Python Go

Important: if an employer asks you to log into their system via iCloud or Google, send a code, an SMS or Telegram password, run some code, or install software — refuse. These are signs of fraud.

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 You Tube'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, ’s planet‑scale machine learning platform powers a suite of solutions for advertising growth and monetization.
Ads is an AI‑powered platform that delivers real business outcomes for mobile app marketers through performance‑based user acquisition.
Commerce Media enables retailers and marketplaces to build revenue‑generating ad businesses that balance user experience and advertiser performance.

is headquartered in Silicon Valley, with offices in Seattle, New York, San Francisco, Seoul, Beijing, Singapore, Gurgaon, Tokyo, Shanghai, London, Tel Aviv, and Berlin.

is a truly rewarding place to work and in an exciting period of growth, which you could be a part of.

Commerce Media (MCM) enables marketplaces to leverage recent advances in AI to deliver highly relevant ads powered by first‑party data. MCM has established strong product‑market fit and is a key growth engine for as we expand our footprint with leading global and regional commerce platforms.

As a Data Scientist on the MCM Data Science team, you will partner closely with Product, Engineering, and Go‑To‑Market teams to shape how MCM defines success, evaluates what it ships, and decides where to invest next. You will work alongside product managers from the earliest stages of a new capability through experimentation, readout, and the decisions that follow. Your work will directly inform which features MCM builds, how we know they work, and how we communicate their value to leadership and marketplace partners.

The Opportunity:

In this role, you will:

• Partner with Product on strategy: Act as an independent thought partner to product managers, proactively surfacing opportunities, sizing them with data, and informing roadmap prioritization. You will bring your own point of view on what to build and why.
• Define success metrics for new product initiatives: Establish how MCM measures new capabilities, including north star and guardrail metrics, the trade‑offs they encode, and the thresholds that guide ramp decisions. Align Product and Engineering on these frameworks before launch.
• Drive evaluation and experimentation: Design experiments and evaluation methodologies for product launches, including cases where standard A/B testing is insufficient. Analyze results rigorously and translate them into clear ship, iterate, or stop recommendations.
• Conduct deep‑dive analyses: Use large‑scale data across our ad‑tech stack (ranking, retrieval, bidding, pacing) to understand how product changes affect advertiser outcomes and marketplace dynamics, and turn findings into actionable recommendations.
• Communicate insights clearly: Distill complex analyses into narratives that product, engineering, and non‑technical stakeholders can act on. Deliver launch readouts and contribute the data narrative to product reviews.
• Uphold data science excellence: Apply best practices in analysis, modeling, and experimentation, and contribute to a strong data culture within the MCM team.

How Do I Know if the Role is Right For Me?

• You want to shape products, not just measure them
  , and are comfortable speaking up when the data disagrees with the plan.
• You operate independently in ambiguity
  , turning an open‑ended product question into a structured analytical plan without waiting for a spec.
• You are energized by fast‑moving, early‑stage product work
  , where metrics do not yet exist and evaluation methods have to be invented.
• You are a strong collaborator who builds trust with product,…