Machine Learning Engineer

About the Role & Team 
The Data Science & Machine Learning team is responsible for building models and APIs to help improve all of Penn Entertainments digital offerings. Our team values creativity, collaboration, ingenuity, and ownership.   

As a Machine Learning Engineer, you'll be instrumental in crafting the next generation of user experiences. You will design, build, and deploy sophisticated machine learning models and infrastructure that directly impact how users discover content, engage with our community, and explore the full spectrum of Penn Entertainment's offerings. This role offers a unique chance to contribute to high-impact projects while helping to advance our cutting-edge ML platform. 

About the Work  
We’re focused on projects that directly improve user engagement and satisfaction. Some examples include: 

• Personalized Recommendation Engines – Help users discover the games, promotions, and content they care about most through behavioral, contextual, and collaborative filtering models.
• Chat Toxicity Detection – Ensure a safe and welcoming community environment with NLP-based classification.
• Cross-sell Propensity Modeling – Predict which offerings resonate with each user and surface the right experience at the right time.
• Dynamic Personalization – Enable real-time decision-making in product features, content feeds, and user journeys using machine learning. 

You’ll also be instrumental in scaling our ML platform to support these future efforts. 

As part of the Machine Learning Engineering team, you will: 

• Build and optimize end-to-end machine learning pipelines from data ingestion to deployment.
• Work closely with Product, Marketing, and Operations teams to align ML solutions with business goals.
• Improve our ML platform and deploy infrastructure using MLOps best practices.
• Evaluate and integrate new tools, models, and frameworks to enhance scalability and performance.
• Clearly communicate technical concepts to both technical and non-technical stakeholders.
• Document your systems and workflows using Git, Confluence, and related tools. 

About You 

You’re someone who’s passionate about putting machine learning into production and making personalization work at scale. You bring: 

• 3+ years of professional experience as a Machine Learning Engineer or in a similar role.
• A background in Computer Science, Data Science, Engineering, or a related technical field.
• Strong programming skills in Python and SQL. Bonus for Go, Rust, Scala, R, or C++.
• Experience with Docker, Kubernetes, Terraform, and scalable deployment tools.
• Hands-on experience building CI/CD pipelines for ML systems.
• Proficiency in orchestration tools like Airflow, Kubeflow, or Dagster.
• Experience working on or contributing to dbt projects.
• Comfort working in cloud environments like AWS, GCP, or Azure.
• Familiarity with ML frameworks such as PyTorch, TensorFlow, Keras, or similar. 

Nice to have: 

• Experience building real-time personalization or recommendation systems at scale.
• Familiarity with virtual feature stores like Feast or Featureform.
• Exposure to working with or deploying large language models (LLMs) in production. 

What We Offer : 

• Competitive compensation package 
• Fun, relaxed work environment 
• Education and conference reimbursements. 
• Parental leave top up 
• Opportunities for career progression and mentoring others  
  #LI-REMOTE