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Director, Machine Learning

ironSource

ironSource

Software Engineering
Beijing, China
Posted on Dec 12, 2025
Requisition ID: JOBREQ-2515365

Director, Machine Learning

Beijing, China, Full-time
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The opportunity

At Unity, we’re committed to building a culture grounded in Empathy, Respect, and Opportunity. Within our fast-paced and collaborative environment, we’re tackling complex challenges that drive meaningful impact for creators and users across our ecosystem. Our Ads Applied Research team plays a crucial role in shaping the future of Unity’s monetization products through cutting-edge machine learning and optimization strategies.

We are seeking a Director, Machine Learning to help define and implement the next generation of ML systems for Unity. In this senior role, you will lead the design, development, and deployment of machine learning models that power our ad network, marketplace, and audience targeting tools. You’ll also play a key role in building and shaping our overall ML strategy, collaborating closely with product, engineering, and research teams in China.

What you'll be doing

  • Collaborate with Executive Leadership to conceptualize, strategize, and develop new products centered around AI/ML
  • Lead the team to advance the state-of-the-art of machine learning to improve our core product offerings in China
  • Support the team in building and operating revenue-generating machine learning services and collaborate closely with internal stakeholders and external partners (e.g. game studios) to evangelize and position AI/ML products and services
  • Drive the technical direction of ML initiatives—identifying key opportunities, defining roadmaps, and mentoring team members across disciplines.
  • Partner cross-functionally with data science, product, and engineering teams to align ML capabilities with strategic business goals.

What we're looking for

  • Advanced degree (Ph.D. preferred) in Computer Science, Machine Learning, Statistics, or a related field—or equivalent practical experience.
  • Proven track record of delivering impactful ML solutions in production, particularly in large-scale, high-throughput systems (e.g., ad tech, recommendation systems, marketplaces).
  • Deep expertise in machine learning frameworks and tools (e.g., PyTorch, TensorFlow, etc.) and a strong understanding of modern model architectures.
  • Experience leading ML initiatives and managing the engineers, researchers and product management teams.
  • Familiarity with data pipelines, model ops, and cloud ML deployment

Additional information

  • Relocation support is not available for this position
  • Work visa/immigration sponsorship is not available for this position

Life at Unity

We offer a wide range of benefits designed to support employees' well-being and work-life balance. You can read more about them on our career page.

Unity [NYSE: U] is the leading platform to create and grow games and interactive experiences. Creators, ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more, use Unity to bring their imaginations to life across multiple platforms, from mobile, PC, and console, to spatial computing.

As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month. For more information, please visit Unity.

Unity is an equal opportunity employer committed to fostering an inclusive, innovative environment with the best employees. Therefore, we provide employment opportunities without regard to age, race, color, ancestry, national origin, disability, gender, or any other protected status in accordance with applicable law. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.

This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. Unity does not accept unsolicited headhunter and agency resumes. Unity will not pay fees to any third-party agency or company that does not have a signed agreement with Unity.

Your privacy is important to us. Please take a moment to review our Prospect and Applicant Privacy Policies. Should you have any concerns about your privacy, please contact us at DPO@unity.com.

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