Digital Advertising Optimization Engineer

1 month ago


Beijing, Beijing, China Liftoff Full time
About Liftoff

Liftoff is a leading growth acceleration platform for the mobile industry, providing innovative solutions to market and monetize mobile apps. Our cutting-edge technology supports over 6,600 mobile businesses across 74 countries, including gaming, social, finance, ecommerce, and entertainment sectors.

Focused on optimizing the digital advertising landscape, our Traffic Management Team ensures strategic allocation and efficient flow of ad traffic across our platform. We aim to enhance user experiences for both publishers and advertisers through advanced traffic throttling, machine learning models, and cutting-edge fraud detection strategies.

Job Overview

We are seeking an experienced Digital Advertising Optimization Engineer to join our team in Beijing. This role will be responsible for owning ML models and underlying software tooling and infrastructure, combining classic 'ML Scientist' and 'Data Engineer' roles.

The ideal candidate will have a strong background in Python, coding ability, and experience applying Machine Learning to large-scale problems in Recommendation, Advertising, or Search. They should also possess a passion for quality and excellence, with the ability to balance it with shipping timelines.

Responsibilities
  1. Develop and maintain ML models for optimal ad delivery, ensuring precision and effectiveness.
  2. Collaborate with the Traffic Management Team to optimize ad traffic allocation and minimize friction.
  3. Work on unique modeling challenges not covered in scientific literature, such as extreme positive sample sparsity and labeling delay.
  4. Become proficient in state-of-the-art probability prediction techniques and other relevant ML areas.
  5. Stay up-to-date with the latest open-source technologies to maximize development velocity.
Requirements
  1. Strong experience in Python programming language.
  2. Very strong coding ability (experience in Go, C, C++, or Rust is a plus).
  3. 8+ years of total software engineering/relevant experience, with at least 4+ years of industry experience applying Machine Learning to large-scale problems.
  4. Strong core CS fundamentals (data structures, algorithms, architecting systems).
  5. A passion for quality and excellence, with the ability to balance it with shipping timelines.
  6. Sets ego aside in pursuit of finding the best solution.
  7. B.S. or higher in Computer Science or Mathematics. PhD a big plus.
  8. Fluent Mandarin and English language ability.
Compensation Package

We offer a competitive salary range of RMB 500,000 - 1,225,000 annually, along with equity and benefits that cater to your needs. The base compensation varies based on location, experience, and level. Additionally, we provide health and wellness stipends, medical benefits associated with your country of residence.



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