Senior ML Engineer — Real-Time Bidding & AI Optimization

Unity Technologies; United States; Remote; USD 149,000 - 230,000; Full time

Benefits offered by this job

Health insurance

Stock options

Retirement plan

Generous vacation

Parental leave

Job summary

Unity Technologies is seeking a Senior Machine Learning Engineer for the Vector Bidding Science team to define the technical vision and architect scalable real-time bidding systems powered by AI and optimization frameworks.

You will advance Unity’s high-scale ads engine, developing state-of-the-art bidding and pacing algorithms using massive datasets and rich signals to maximize advertisers’ returns.

Qualifications

• Hands-on experience on state-of-the-art machine learning, reinforcement learning, and control theory to complex, real-world bidding or pricing problems.
• Strong software engineering skills in Python and experience with deep learning frameworks, preferably PyTorch.
• Solid understanding of metric design, online experimentation frameworks (A/B testing), and large-scale data analysis.
• Proven ability to lead projects end-to-end and deliver measurable business impact in an ambiguous technical landscape.

Responsibilities

• Design, implement, and optimize core bidding algorithms and auction mechanisms.
• Architect and scale bid landscape forecasting capabilities.
• Analyze large-scale marketplace dynamics to uncover deep insights and deliver algorithmic improvements.
• Drive offline evaluations and online A/B experiments to validate model performance and deliver measurable business impact.
• Collaborate cross-functionally with product, infrastructure, and engineering teams.

Skills

Machine learning

Reinforcement learning

Python

Deep learning

PyTorch

A/B testing

Online experimentation

Tools

Spark

Ray

BigQuery

Flink

Job description

Unity Technologies is seeking a Senior Machine Learning Engineer for the Vector Bidding Science team to define the technical vision and architect scalable real-time bidding systems powered by AI and optimization frameworks.

You will advance Unity’s high-scale ads engine, developing state-of-the-art bidding and pacing algorithms using massive datasets and rich signals to maximize advertisers’ returns.