Principal Engineering Geologist​/Geotechnical Engineer

At Amentum
, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed - today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships.

Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

As part of our continued growth, we are expanding our UK Ground Engineering capability to support a growing portfolio of diverse projects across the Defence, Nuclear, Environment and government-owned critical infrastructure sectors.

We are seeking Engineering Geologists and Geotechnical Engineers at a Principal level
, particularly those with experience spanning one or both of the following areas:

• Ground investigation, characterisation, engineering geological assessment, and
• Geotechnical analysis and design

As a Ground Engineering Professional within Amentum, you will work across the project lifecycle, applying sound engineering geological and geotechnical judgement to identify and manage ground-related risks while supporting our clients and multidisciplinary project teams in delivering safe, sustainable and cost-effective solutions.

We offer a flexible hybrid working environment, combining office, site and home-based working.
Harwell, Oxfordshire is our preferred base, although opportunities are available at other Amentum UK offices depending on the successful candidate.

As an Engineering Geologist or Geotechnical Engineer within Amentum, you will lead and support the identification, investigation and management of ground-related risks across a diverse range of projects.

Your work may include:

• Leading and managing the delivery of geotechnical and engineering geological desk studies, including the review and interpretation of historical information, geological mapping, development of ground models and preliminary ground risk assessments.
• Leading the planning, specification and delivery of land and overwater ground investigations, including preparation and review of scopes, specifications, schedules and supporting documentation, including specifications prepared in accordance with the ICE Specification for Ground Investigation (Yellow Book), where appropriate.
• Field mapping, geomorphological assessment and engineering geological walkovers.
• Interpretation and review of soil and rock descriptions and field and laboratory test data, including derivation and selection of appropriate geotechnical parameters for assessment and design.
• Managi…