Lead Data Scientist - Consulting

Harnham - Data and Analytics Recruitment; Royal Borough of Greenwich; On-site; GBP 80,000 - 90,000; Full time

Job summary

Harnham is a London-based data and analytics recruitment consultancy seeking a senior Data Scientist to join their growing team. You will deliver ML and AI solutions for high-impact client problems and collaborate with senior stakeholders to embed data-driven decision making.

The role involves leading technical workstreams, translating analytics into actionable recommendations, and mentoring peers. The successful candidate will combine technical depth with strong client-facing communication in a

Qualifications

• Strong commercial experience in Data Science, ML, or Advanced Analytics.
• Experience building end-to-end analytical solutions in Python.
• Experience deploying models into production and working with clients.

Responsibilities

• Design and deliver machine learning, advanced analytics, and AI solutions for client challenges.
• Build production-ready data science solutions that create measurable impact.
• Work with senior stakeholders to identify opportunities where data and AI drive value.
• Lead technical workstreams across client engagements, from discovery through implementation.
• Translate complex analytical findings into clear and actionable recommendations.
• Mentor colleagues and contribute to data science best practices.
• Stay current with developments in AI, ML, and analytics to bring innovative approaches to client projects.

Skills

Data Science & ML

Python programming

Stakeholder management

Consulting experience

Model deployment

Tools

Python

Job description

London | £80,000-90,000

This is an opportunity to join a growing digital and analytics consulting team delivering high-impact machine learning and AI solutions for some of the UK's most complex operational challenges. You'll work closely with senior stakeholders, helping organisations move beyond proof of concepts and embed data science into real-world decision-making.

The Company

They are an established consultancy that partners with organisations across both public and private sectors to deliver measurable business outcomes. Their work focuses on solving complex operational challenges through data, analytics, AI, and digital transformation. As their digital capability continues to expand, they are seeking experienced Data Scientists who can combine technical expertise with strong stakeholder engagement.

The Role

• Design and deliver machine learning, advanced analytics, and AI solutions for a wide range of client challenges
• Build production-ready data science solutions that create measurable operational and commercial impact
• Work directly with senior stakeholders to identify opportunities where data and AI can drive value
• Lead technical workstreams across client engagements, from discovery through to implementation
• Translate complex analytical findings into clear and actionable recommendations
• Mentor colleagues and contribute to data science best practices across the wider team
• Stay current with developments in AI, machine learning, and analytics to bring innovative approaches to client projects

Your Skills & Experience

• Strong commercial experience in Data Science, Machine Learning, or Advanced Analytics
• Advanced Python skills and experience building end-to-end analytical solutions
• Experience taking models and analytical products from concept through to deployment
• Exposure to modern AI technologies, including LLMs and generative AI applications
• Strong stakeholder management and communication skills
• Experience working within consulting, client-facing, or cross-functional environments
• Ability to manage multiple priorities and deliver solutions in fast-paced project settings