Principal Consultant

83zero; Plymouth; On-site; GBP 80,000 - 100,000; Full time

Job summary

A consulting firm is seeking a Principal Data Science Consultant to lead complex data science and AI projects. This role involves providing technical leadership, mentoring juniors, and engaging with clients at all levels. A strong background in machine learning and consulting experience is required. Candidates must hold SC Clearance and be comfortable in a results-driven environment.

Qualifications

• Strong background in Machine Learning, Deep Learning, and Large Language Models.
• Solid understanding of mathematics, statistics, and data modelling fundamentals.
• Proven consulting experience and able to engage clients.

Responsibilities

• Lead and deliver complex data science and AI engagements from proof of concept through MVP phases.
• Act as a trusted advisor to clients for defining their digital vision.
• Design and implement machine learning and deep learning solutions.

Skills

Machine Learning

Deep Learning

Large Language Models

Mathematical Reasoning

Consulting experience

Job description

Overview

We’re looking for a Principal Data Science Consultant who combines deep technical capability with a strong consulting mindset. You’ll help clients unlock the value in their data, applying advanced AI, ML, and mathematical modelling techniques to drive measurable business outcomes.

This role is ideal for someone who thrives in client-facing environments, enjoys shaping data science solutions from idea to implementation, and is comfortable leading both technically and commercially.

Location: Plymouth and beyond

Clearance: SC Cleared

Package: Up to £100,000 base + benefits

My consulting client seeks

Responsibilities

• Lead and deliver complex data science and AI engagements, from proof of concept (POC) through MVP, alpha, and beta phases.
• Act as a trusted advisor to clients – helping them define their digital vision, identify opportunities, and translate data science into tangible value.
• Design and implement machine learning, deep learning, and large language model (LLM) solutions for real-world business challenges.
• Bring strong mathematical reasoning and estimation skills to build robust, scalable models.
• Provide technical leadership and mentor junior data scientists and consultants within the team.
• Manage stakeholder relationships at all levels, ensuring communication and delivery excellence.
• Work collaboratively within multi-disciplinary teams – often embedded onsite with clients.
• Drive delivery outcomes with a self-starter mindset, ensuring pace, quality, and client satisfaction.

About You

• Strong background in Machine Learning, Deep Learning, and Large Language Models
• Solid understanding of mathematics, statistics, and data modelling fundamentals.
• Proven consulting experience – able to engage clients, manage ambiguity, and deliver under pressure.
• Confident leading small teams and influencing stakeholders up to C-level.
• Comfortable working in a digital-first, fast-moving environment.
• Must hold SC Clearance.