Be at the heart of actionFly remote-controlled drones into enemy territory to gather vital information.

Apply Now

Machine Learning Specialist

Expedia Group
City of London
6 days ago
Create job alert

Machine Learning Specialist III


Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success.


Why Join Us?


To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win.


We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us.



The Search AI team is part of Expedia Product & Technology. We build state-of-the-art machine learning models that power search and ranking across Expedia Group, helping travelers find the right place to stay from millions of options worldwide.


We are looking for a Machine Learning Scientist III to join our Search AI team and help shape the next generation of ranking systems. You’ll be working on cutting-edge applications of Large Language Models (LLMs) and Generative AI, combining them with proven machine learning techniques to improve personalisation and traveler experience at scale.


In this role, you will:


  • Research and design innovative ML and GenAI approaches for large-scale ranking and personalisation.
  • Build, test, and deploy ML models into production with performance validated through online experimentation.
  • Collaborate with engineers, analysts, and product partners to deliver robust, scalable, and business-driven solutions.
  • Translate complex technical results into clear insights and recommendations for both technical and non-technical audiences.
  • Stay current with advances in ML and GenAI to drive innovation within the team.



Minimum Qualifications:


  • Master’s degree or Ph.D. in Computer Science, Statistics, Math, Engineering, or a related technical field; or equivalent related professional experience.
  • 4+ years of applied Machine Learning experience, with models built and maintained in a production environment.
  • High proficiency in Python and modern ML frameworks such as PyTorch or TensorFlow.
  • A strong foundation in Machine Learning fundamentals, statistics, and experimentation.


Preferred Qualifications:


  • Experience with ranking or recommender systems.
  • Experience with recent Large Language Models (LLMs), including fine-tuning, efficient deployment, and architectures.
  • Comfortable working with large-scale data and distributed systems (e.g., Spark).
  • Effective communication skills and experience working across disciplines to solve complex problems


Location expectations


This role is based in London, in alignment with our flexible work model which requires employees to be in-office at least three days a week. Relocation assistance may be considered for qualified candidates.

Related Jobs

View all jobs

Machine Learning Specialist

Machine Learning Specialist (Computer Vision & Object Detection)

Machine Learning Specialist (Computer Vision & Object Detection)

Machine Learning Specialist

Machine Learning Performance Engineer, London

Machine Learning Manager, London

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Machine Learning Recruitment Trends 2025 (UK): What Job Seekers Need To Know About Today’s Hiring Process

Summary: UK machine learning hiring has shifted from title‑led CV screens to capability‑driven assessments that emphasise shipped ML/LLM features, robust evaluation, observability, safety/governance, cost control and measurable business impact. This guide explains what’s changed, what to expect in interviews & how to prepare—especially for ML engineers, applied scientists, LLM application engineers, ML platform/MLOps engineers and AI product managers. Who this is for: ML engineers, applied ML/LLM engineers, LLM/retrieval engineers, ML platform/MLOps/SRE, data scientists transitioning to production ML, AI product managers & tech‑lead candidates targeting roles in the UK.

Why Machine Learning Careers in the UK Are Becoming More Multidisciplinary

Machine learning (ML) has moved from research labs into mainstream UK businesses. From healthcare diagnostics to fraud detection, autonomous vehicles to recommendation engines, ML underpins critical services and consumer experiences. But the skillset required of today’s machine learning professionals is no longer purely technical. Employers increasingly seek multidisciplinary expertise: not only coding, algorithms & statistics, but also knowledge of law, ethics, psychology, linguistics & design. This article explores why UK machine learning careers are becoming more multidisciplinary, how these fields intersect with ML roles, and what both job-seekers & employers need to understand to succeed in a rapidly changing landscape.

Machine Learning Team Structures Explained: Who Does What in a Modern Machine Learning Department

Machine learning is now central to many advanced data-driven products and services across the UK. Whether you work in finance, healthcare, retail, autonomous vehicles, recommendation systems, robotics, or consumer applications, there’s a need for dedicated machine learning teams that can deliver models into production, maintain them, keep them secure, efficient, fair, and aligned with business objectives. If you’re hiring for or applying to ML roles via MachineLearningJobs.co.uk, this article will help you understand what roles are typically present in a mature machine learning department, how they collaborate through project lifecycles, what skills and qualifications UK employers look for, what the career paths and salaries are, current trends and challenges, and how to build an effective ML team.