Overview

A leading infrastructure consultancy is seeking a skilled and experienced Principal Geologist to manage the technical delivery of complex ground investigation projects. This is a senior leadership role focused on project oversight, technical assurance, client engagement, and team development. You’ll be responsible for shaping investigation strategies and ensuring the highest standards of geotechnical data, analysis, and reporting across a portfolio of infrastructure schemes.

Key Responsibilities

Technical Leadership

Lead the planning and delivery of ground investigation (GI) works

Provide technical guidance to teams on logging, in-situ testing, sampling, and AGS data management

Review and approve factual and interpretative reports to ensure accuracy and compliance with standards

Manage reporting in accordance with BS5930, EC7, and project specifications

Act as technical lead on multi-disciplinary project teams

Project & Client Oversight

Scope and manage GI packages, ensuring timely and cost-effective delivery

Oversee subcontractors and ensure H&S compliance on all active sites

Support tendering and proposal writing for new project bids

Attend client meetings, provide briefings, and act as a key point of contact throughout project life cycles

Mentoring & Development

Mentor junior and mid-level staff, supporting Chartership and RoGEP progression

Lead internal CPD sessions and promote knowledge sharing within the team

Help shape and grow technical standards, best practice processes, and quality frameworks

Requirements

Degree in Geology, Engineering Geology, or Geotechnical Engineering

Chartered status (CGeol or CEng)

Minimum 10 years’ experience in ground investigation or geotechnical consultancy

Proven experience leading and delivering GI works on major civil engineering or infrastructure projects

Strong understanding of UK GI standards (BS5930, EC7) and AGS data formats

Excellent communication and leadership skills

Familiarity with HoleBASE, gINT, or other logging/reporting platforms

Full UK driving licence

CSCS card or equivalent certification