Lead Data Scientist - Defence Sector (Weekly Client Onsites)

Are you ready to apply data science where it matters most? Do you want your models to drive real-world outcomes in mission-critical settings? Do you enjoy working onsite with a variety of invested clients? A leading UK consultancy is building a dedicated AI \& Data Science team to strengthen its delivery capability in Defence. They’re known for outcome-driven transformation work and operate a genuinely hands-on model where technical teams embed with client stakeholders to make change stick. The business has a strong track record across complex, high-stakes environments, and is now scaling its DS capability to deliver ML, GenAI and simulation solutions end-to-end. For high performers, there’s clear progression and the chance to shape the direction of a growing AI practice. You’ll work directly with end users and senior stakeholders to shape solutions from concept through to embedded impact. This is a high-trust, high-autonomy role where you’ll own both technical delivery and stakeholder engagement - all within a deeply collaborative consulting environment. They're hiring at Lead (3-5 years of experience) to Principal level (5-10+ years of experience). Key Responsibilities * Build and deploy machine learning models and simulation tooling in secure environments * Lead technical delivery across multi-disciplinary teams, including consultants and engineers * Work closely with client stakeholders on-site to co-design and iterate on solutions * Translate complex analytics into strategic business outcomes with measurable value Key Details • Salary: £80,000 - £150,000 • Working model: On-site 4–5 days/week across UK client locations (travel and accommodation expensed) • Tech Stack: Python, MLflow, Databricks, Docker, Azure OpenAI, simulation frameworks • Clearance: British citizenship / Security Clearance eligibility required • Visa: This role cannot sponsor Interested? Please apply below.