Senior Data Scientist

Harnham - Data & Analytics Recruitment
Manchester, United Kingdom
Today
£70,000 – £90,000 pa

Salary

£70,000 – £90,000 pa

Job Type
Permanent
Work Pattern
Full-time
Work Location
On-site
Seniority
Senior
Education
Degree
Posted
30 Apr 2026 (Today)
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Senior AI Engineer - Manchester

We are working on an exciting role with a scale up SaaS company who are focused on helping clients eliminate wasteful and fraudulent ad traffic.

The Role
We are looking for an experienced Data Scientist with strong ML & NLP expertise to build and improve models that detect invalid traffic (IVT) and protect ad spend. You'll work with large-scale data, design production-ready ML systems, and collaborate closely with engineering to keep models performant and reliable.

Responsibilities

  • Develop and deploy ML models to detect bot and fraudulent traffic
  • Lead research and prototyping of new detection methods
  • Monitor model performance and address drift or false positives
  • Collaborate across teams to turn insights into product features
  • Ensure compliance, scalability, and reliability of ML systems

What We're Looking For

  • Proven experience with ML in production environments
  • Strong skills in Python, SQL, and AWS (SageMaker, Lambda, etc.)
  • Experience with NLPs or LLMs
  • Familiarity with MLOps and real-time data applications
  • A pragmatic mindset and strong problem-solving ability
  • Background in adtech or fraud detection is a bonus

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