Senior AI Engineer - Manchester or London
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