Liftoff is the leading growth acceleration platform for the mobile industry, helping advertisers, publishers, game developers and DSPs scale revenue growth with solutions to market and monetize mobile apps.

Liftoff’s solutions, including Accelerate, Direct, Influence, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence.

Liftoff is the leading growth acceleration platform for the mobile industry, helping advertisers, publishers, game developers, and DSPs scale revenue growth with solutions to market and monetize mobile apps.

Liftoff’s solutions, including Accelerate, Direct, Influence, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence.

At Liftoff, we’re solving one of the core problems faced by every mobile app: growth. To do so, we build Machine Learning and Big Data-driven technology that can accurately predict which apps a user will like, and connect them in a compelling way. Our systems operate at a scale unseen outside of the largest Internet companies – processing over 4 million requests per second and interacting with over a billion users a week. Our technology is innovative and we have strong product-market fit; as a result, we're profitable and seeing tremendous growth.

Across our engineering teams, we offer a wide range of opportunities for different skill levels and experiences.

About the Bidding Policy team:

Liftoff bids in millions of auctions per second, relying on various bidding modules to make the right decision in each auction. The Bidding Policy team at Liftoff sits at the intersection of these modules, exploring new approaches that harness the collective output of the Liftoff ML ecosystem to accurately and efficiently help mobile users discover new apps. This is a senior role that will work autonomously on a continuous process of experimentation, analysis, and deployment.

As a Staff Machine Learning Engineer on the Bidding Policy team, you will:

• Work with an experienced team of ML and Software Engineers
• Build state-of-the-art ML models to make accurate bidding decisions in millions of auctions per second
• Have end-to-end ownership of the design and implementation of reliable, scalable, and cost-efficient systems
• Monitor the latest ML research for practical ideas
• Utilize in-house tooling, open source technologies (PyTorch, PySpark, etc.), and vendor-based products (AWS, Weights & Biases, etc.)

Desired qualities and experiences:

• 5+ years of industry experience applying Machine Learning (including neural networks) to large scale problems
• B.S. or higher in Machine Learning, Math, Physics or similar
• Very strong coding ability
• Solid team communication and collaboration skills
• A passion for quality and excellence

Nice to have:

• Previous experience in ad-tech
• Experience building machine learning tooling and/or platforms
• Experience with Golang and/or Python

Location:

This role is eligible to work out of any of our below North America office locations or is eligible for full-time remote work in one of our entities.

US office locations: Redwood City (HQ), San Francisco, Los Angeles, New York City, Seattle. Additionally, Liftoff recently announced approved North American locations from which some employees may request to work from any city and county: California, Colorado, Idaho, Illinois, Georgia, Missouri, Nevada, New Jersey, New York, Oregon, Rhode Island, Texas, Utah and Washington in the US, and Canada.

Compensation: 

Liftoff offers all employees a full compensation package that includes equity and health/vision/dental benefits associated with your country of residence. Base compensation will vary based on candidate location and experience. SF Bay Area, NYC, Los Angeles/Orange County: $215,000 - $260,000Seattle/Olympia, Austin, San Diego, Santa Barbara, Boston: $200,000 - $240,000All other cities and towns in our approved states: $185,000 - $225,000

Working at Liftoff is fast-paced, fun, and challenging, and we thrive on innovation. Come join the rocket ship and help shape the future of the mobile app ecosystem with us! 

#LI-EL1

#LI-Remote

We use Covey as part of our hiring and / or promotional process for jobs in NYC and certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on January 22, 2024.

Please see the independent bias audit report covering our use of Covey here.

Liftoff is committed to providing and maintaining a work environment where all employees and candidates are treated with dignity and respect and that is free of bias, prejudice, and harassment. Liftoff is further committed to providing an equal employment opportunity for all employees and candidates for employment free from discrimination and harassment on the basis of sex, gender (including sexual harassment, gender harassment, and harassment due to pregnancy, childbirth, breastfeeding, and related conditions), sexual orientation, gender identity, gender expression, gender nonconformity, race, creed, religion, color, national origin, ancestry (including association, affiliation, or participation with persons or activities related to national origin, English-proficiency or accent, or immigration status), physical or mental disability, medical condition(s), genetic information of an individual or family member of the individual, marital or domestic partner status, age, veteran or military status, family care status, requesting or taking pregnancy, parental or disability leave, requesting an accommodation, or any other characteristic protected by federal, state, or local law, regulation, or ordinance. All such discrimination and harassment is unlawful and will not be tolerated. Liftoff maintains a continued commitment to equal employment opportunity and expects the full cooperation of all personnel.

Liftoff's Compensation Strategy

Liftoff's compensation strategy includes competitive market rate along with equity and benefits and perks that will give our employees what they need to do their best work. In order to ensure teams are compensated fairly for the work performed, we map out specific levels and take into consideration the cost of labor within each location. Liftoff provides employees a total compensation package of competitive market salaries, equity, health and wellness stipends, medical benefits associated with your country of residence. The base compensation will vary based on location, experience as well as level.

Agency and Third Party Recruiter Notice:

Liftoff does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or Recruiting Team. All candidates must be submitted via our Applicant Tracking System by approved Liftoff vendors who have been expressly requested to make a submission by our Recruiting Team for a specific job opening. No placement fees will be paid to any firm unless such a request has been made by the Liftoff Recruiting Team and such a candidate was submitted to the Liftoff Recruiting Team via our Applicant Tracking System.