Harnham
Machine Learning Engineer
HarnhamIreland13 days ago
Full-timeRemote FriendlyEngineering

Senior Machine Learning Engineer

Dublin, Ireland

Up to 140k annually


Are you ready to shape the future of personalized digital experiences? This is your chance to join a high-impact Machine Learning team building cutting-edge models that power a global digital platform used by millions.


Key Skills: Personalization, recommendation systems, Search Ranking, PyTorch, TensorFlow, AWS, A/B Testing, Python


Location & Work Model: Dublin, Hybrid (½ day per month in office – must be Dublin-based, open for relocation)


Salary: €120,000–€140,000 + 15% bonus + 10% pension


You’ll work on large-scale personalization projects that directly impact millions of users worldwide — from optimizing in-platform search and rankings to hyper-personalized recommendations and pricing. This is a hands-on senior role where you’ll collaborate with a growing team, influence technical strategy, and deliver ML systems at scale.


The Company

They are a global leader in digital entertainment and technology, known for creating innovative products and experiences that reach a vast user base. With a strong focus on personalization and inclusivity, they strive to make digital platforms more engaging and user-centric.


The Role

  • Design and deploy large-scale search retrieval and ranking algorithms.
  • Develop machine learning and deep learning models for personalization, recommendations, and content optimization.
  • Drive A/B testing strategies to evaluate performance in real-world scenarios.
  • Mentor junior engineers while remaining hands-on in design and coding.
  • Partner with product, data, and engineering teams to deliver impactful ML solutions.


Your Skills & Experience

  • 4+ years as an ML Engineer, with proven expertise in search ranking.
  • Strong track record in recommendation systems or personalization.
  • Hands-on experience with PyTorch, TensorFlow, Python (AWS or other cloud experience also valued).
  • Knowledge of A/B testing and exposure to LLM applications is a plus.
  • Excellent problem-solving skills, able to deliver at scale in consumer-facing environments.
  • Strong communicator with experience collaborating across technical and business teams.


What They Offer

A highly competitive package of €120,000–€140,000 plus 15% bonus and 10% pension, hybrid working (Dublin-based), sponsorship support if needed, and the chance to be part of a rapidly growing ML team working on some of the most exciting personalization projects in the industry.


How to Apply

Apply now to explore this opportunity to shape the future of digital experiences.

Key Skills

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