Senior Data Scientist (Contract) — Customer Identity & Entity Resolution  Key responsibilities: Build ML/graph-based identity resolution where rules aren’t enough Improve customer-spine architecture and reduce identity drift Define matching-quality metrics; support golden-layer integration Deliver reusable identity-resolution frameworkMust-have: Entity resolution/record linkage + fuzzy matching ML-based identity resolution; MLOps; feature stores Customer Master/MDM experienceNice-to-have: Governed identity hierarchy; matching metrics; golden layer integration With over 90 years' combined experience, NES Fircroft (NES) is proud to be the world's leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Chemicals, Construction & Infrastructure, Life Sciences, Mining and Manufacturing sectors worldwide. With more than 80 offices in 45 countries, we are able to provide our clients with the engineering and technical expertise they need, wherever and whenever it is needed. We offer contractors far more than a traditional recruitment service, supporting with everything from securing visas and work permits, to providing market-leading benefits packages and accommodation, ensuring they are safely and compliantly able to support our clients