https://jobs.co.uk/job/principal-data-scientist-fine-tuning-and-model-optimisation-experis-it--37b9e08d-9ab2-46d1-93e3-baa2837d92ef RSS feed for Principal Data Scientist (Fine-tuning and Model Optimisation) at Experis IT. en-gb Wed, 12 Aug 2026 13:52:39 GMT https://jobs.co.uk/job/principal-data-scientist-fine-tuning-and-model-optimisation-experis-it--37b9e08d-9ab2-46d1-93e3-baa2837d92ef https://jobs.co.uk/job/principal-data-scientist-fine-tuning-and-model-optimisation-experis-it--37b9e08d-9ab2-46d1-93e3-baa2837d92ef Wed, 12 Aug 2026 11:52:31 GMT Location: England | Salary: 110000.00-110000.00 Annual | Type: Permanent | Principal Data Scientist (Fine-tuning andamp; model optimisation) - AI Models LeadHybrid: RemotePaying up to £130,000 + BenefitsPermanentExperis are delighted to be partnering with a highly successful and growing software organisation as they invest heavily in building a cutting-edge AI capability at the heart of their product suite.We are supporting them in the search for an AI Models Lead, a key foundational hire who will own the development, fine-tuning, and production delivery of domain-specific AI models within a large-scale programme.This is a rare opportunity to join at an early stage and build a fine-tuning capability from first principles, shaping how AI models are developed, evaluated, and deployed in real-world, regulated environments. Looking for someone who has moved beyond prompt engineering and RAG into genuine model adaptation, evaluation, optimisation and fine-tuning.What You''ll Be DoingDesigning and leading the end-to-end model fine-tuning strategy, such as SFT, LoRA/QLoRA, and optimisation approachesSelecting and evaluating base models (eg Mistral, Qwen, PHI, Falcon) based on performance, cost, and use caseDefining evaluation frameworks and standards to ensure m... Permanent