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:
Product Analytics Data Science (PDS) is the data science team that works closely with the R&D team on our core Ads product. As a Senior Applied Scientist, you will drive performance improvement in our product through a deep understanding of the ads ecosystem (supply, demand, bidding, ML) and customer needs, and provide the data driven insight and scientific solutions.
Here’s what you’ll be working on:
Our team is responsible for:
- Conducting deep-dive analysis to influence R&D decisions and strategies: analyzing large datasets with queries and scripts, extracting valuable signals out of noise, and producing actionable insights into how we could improve Moloco’s complex ML and bidding system to drive outcomes for customers.
- Building the right metrics to measure campaign health: improving campaign performance monitoring by establishing the right metric framework, and understanding cause-and-effect relationships across drivers
- Evaluating ads system health: understanding changes and drivers of our complex systems, and diagnosing issues through a set of input/output metrics of each component.
- Work with other applied scientists on projects to evaluate the health of both internal and external components to make sure the Moloco system is running safely and efficiently.
- Learn from your senior peers how to identify new areas to improve our infrastructure and machine learning components by understanding internal system changes, external changes, and data changes, and identify and suggest interesting/useful next steps for your projects.
- Complete task as part of larger projects to complete deep unbiased analyses.
- Implement, and evaluate new algorithms and features in collaboration with senior Applied Scientists, Software Engineers and Machine Learning Engineers.
- Analyze massive, high-dimensional datasets from ad auctions and user interactions to uncover insights, define success metrics, and guide modeling and product decisions.
- Collaborate closely with product, engineering, and other scientists to iterate on experiments, define roadmaps, and translate business requirements into scientifically sound solutions.
- Improve the reliability, latency, and efficiency of online prediction and decision systems by applying rigorous experimentation, monitoring, and continual model refinement.
- Advanced degree in Computer Science, Mathematics or related field, or industry experience in optimization of market prices or ML systems
- At least 4 years of engineering or applied science experience
- Proficient verbal and written English communication skills, with the ability to contribute to the creation of presentations and reports
- Quick understanding of new information and the demonstrated ability to learn new technical skills across engineering, machine learning, and data science
- Track record of building positive relationships with collaborators and stakeholders and working effectively with cross-functional partners in a global company
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:
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.
Skills Required
- Advanced degree in Computer Science, Mathematics, or a related field, or industry experience optimizing market prices or machine learning systems
- At least 4 years of engineering or applied science experience
- Proficient verbal and written English communication skills
- Ability to create presentations and reports
- Ability to quickly understand new information and learn technical skills across engineering, machine learning, and data science
- Track record of building positive relationships with collaborators and stakeholders
- Ability to work effectively with cross-functional partners in a global company
What We Do
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 built AI advertising systems at some of the world’s largest technology companies, Moloco was created to bring that same level of technology to businesses beyond the major platforms. Today, Moloco is one company with two businesses built on the same compound AI system. Moloco Ads is an AI-native performance advertising platform that helps mobile app marketers acquire, retain, and re-engage high-value users across mobile and connected TV. Moloco Commerce Media helps retailers and marketplaces build and scale their own advertising businesses using first-party data, shopper attention, and AI. Behind every Moloco product is CARA, our Compound Ad Recommendation Architecture, which continuously learns across billions of signals to make advertising decisions in real time. Headquartered in Menlo Park, California, Moloco has more than 850 employees across 13 global offices. Our teams span software engineering, machine learning, applied science, product, design, sales, marketing, customer success, and corporate functions. At Moloco, our business grows when our customers succeed. We combine advanced AI technology with hands-on expertise to help businesses create measurable growth and build for what comes next.
Why Work With Us
At Moloco, you’ll work with a global team solving world-scale problems in AI advertising. We combine deep technical expertise with curiosity, ownership, and collaboration to build frontier technology, create real value for customers, and keep pushing what’s possible.
