Senior Machine Learning Engineer

Senior Machine Learning Engineer at Expedia Group’s Machine Learning Engineering team.

Responsibilities

• Architect and own end‑to‑end ML infrastructure for training, deployment, and serving across batch and real‑time environments.
• Define and drive technical standards for ML systems, including reliability, observability, and performance benchmarks.
• Lead the design and implementation of scalable data pipelines for large‑scale feature engineering and model training.
• Own system performance and reliability across the ML platform, proactively identifying and resolving bottlenecks.
• Establish and evolve ML Ops practices, including CI/CD pipelines, monitoring, alerting, and A/B testing frameworks.
• Serve as a senior technical partner to ML scientists, leading the model development‑to‑production workflow for critical systems.
• Mentor junior and mid‑level engineers, lead design and code reviews, and raise the technical bar across the team.
• Evaluate and integrate emerging technologies, contribute to roadmap decisions, and communicate technical strategy to diverse stakeholders.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related technical field.
• 5+ years of experience in Software, Data, or ML engineering roles with a clear track record of delivering production ML systems.
• Strong problem‑solving skills and deep proficiency in Python.
• Hands‑on experience with ML frameworks such as TensorFlow or PyTorch.
• Deep understanding of ML algorithms, model architectures, and the infrastructure required to build scalable, reliable ML systems.
• Proficiency with cloud platforms (AWS, GCP), containerization (Docker, Kubernetes), and distributed data systems (Spark, Kafka).
• Proven experience with ML model serving technologies (MLflow, TensorFlow Serving), CI/CD tooling, and ML platform design.
• Demonstrated ability to mentor engineers, lead technical discussions, and drive cross‑functional alignment.

Salary: €70,000.00 to €98,000.00, with potential up to €112,000.00 based on performance.

Benefits and perks include medical, dental, vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network membership.

Expedia Group is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment regardless of race, religion, gender, sexual orientation, national origin, disability or age.