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Senior Applied Scientist, Inference (MCM)

Join to apply for the Senior Applied Scientist, Inference (MCM) role at Moloco.

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!

Impact You’ll Be Contributing to Moloco

Moloco Commerce Media (MCM) enables marketplaces to leverage the recent advances in AI for delivering tailored ads to relevant users, driven by first‑party data. We’ve established MCM’s product‑market fit with strong interest in our product. MCM is an important product that is key to Moloco’s continued success and is in a high‑growth phase.

The Data Science & Applied Science team supports MCM's growth by supporting the launch of new features through modeling, algorithmic and analytical excellence. As a Senior Applied Scientist focused on Inference, you will be the primary architect of our experimentation platform and will develop the statistical methodologies that power business‑critical decisions across the entire MCM product. You will have the opportunity to work on and improve various components of our ad‑tech stack including ranking, retrieval, auction/bidding and budget pacing.

What You’ll Do

• Methodology Development: Develop and implement advanced statistical methodologies (e.g., variance reduction techniques, such as CUPED) to improve the validity, power, and generalizability of MCM experiments as the primary owner of MCM’s experimentation platform.
• Platform Innovation: Partner with Product and Engineering to drive the development of an automated experimentation platform from ideation to productionalization. Identify opportunities to improve platform functionality like automated power analysis.
• Cross‑Functional Leadership: Guide and assist partner teams (ML, Product, and Sales) through the experimentation lifecycle. Help them define the right business questions, choose appropriate metrics, and interpret results.
• Culture & Education: Act as the internal champion for experimentation best practices. Educate peers on statistical pitfalls (e.g., network effects, p‑hacking) through documentation, presentations, and mentorship.
• Strategic Deep Dives: Use Python/SQL and work at scale with large datasets to conduct analysis and identify improvements to our ML models. Validate and quantify the efficiency and performance gain from hypotheses with advanced statistical methods and rigorous A/B testing.

Basic Qualifications

• Ph.D. in Statistics, Economics, Mathematics, Operations Research, or another quantitative field with exposure to advanced modeling and statistical techniques.
• Proficient in Python and SQL. Experienced working efficiently with large datasets, including model prototyping and statistical simulations.
• Deep understanding of experimental design, causal inference and advanced statistical methods.
• Excellent verbal and written communication skills, with the ability to communicate complex technical concepts to non‑technical stakeholders.
• Ability to build positive relationships within the DS team and with our stakeholders, and work effectively with cross‑functional partners in a global company.
• Willingness to both teach others and learn new techniques.

Preferred

• 2+ years of experience (industry or postgraduate) in Data Science, with a heavy focus on experimentation and causal inference in a high‑growth tech environment (AdTech preferred).
• Prior experience developing experimentation methodology, building experimentation platforms and designing large‑scale online experiments.
• Demonstrated leadership and self‑direction. Able to seek out new business questions and effectively scope projects to improve our ML model performance.

Compensation and Benefits (for United States Residents Only)

In accordance with various state laws, the range provided is a reasonable estimate of the base compensation for this role. The actual amount may be higher or lower based on non‑discriminatory factors such as experience, knowledge, skills, and abilities. We also offer a competitive benefits package.

Base Pay Range: $184,000—$230,000 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. 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

Equal Opportunity

Creating a diverse workforce and a culture of inclusion and belonging is core to our existence. To reach our goals, diversity of talent and thought is a critical component of how we operate as an organization. Our workforce is our superpower, and we know that fostering a culture of inclusion, authenticity, and belonging gives us the greatest opportunity to achieve our vision to become the scaling engine for the Internet economy.

Moloco is an equal opportunity employer. We highly value diversity in our current and future employees and do not discriminate (including in our hiring and promotion practices) on the basis of race, color, creed, religion, national origin, age, sex and gender, gender expression and identity, sexual orientation, marital status, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by law.

Candidate Privacy Notice

Your privacy matters to us. By applying, you acknowledge that you’ve reviewed our Candidate Privacy Notice.

Job Details

• Seniority Level: Mid‑Senior level
• Employment Type: Full‑time
• Job Functions: Research, Analyst, and Information Technology
• Industries: Advertising Services

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