Principal Geotechnical Engineer

Are you ready to challenge the boundaries of what's possible? We're seeking a dynamic Principal Geotechnical Engineer who brings not only deep technical expertise but also an innovative mindset. Whether you come from a traditional geotechnical engineering background or have unconventional experience that adds fresh value, we'd love to hear from you.

We’re looking for a Principal Geotechnical Engineer to join our Ground Engineering team in London; either Croydon or Aldgate.

We work for leading United Kingdom & Ireland (UK&I) and international clients and have a wide range of commissions across all sectors, some typical examples of current and past projects include National Great Grid Upgrade, High Speed rail, Network Rail CP7 and overseas work including work for the Royal Commission of Al Ula and Neom. Our Ground Engineering Practice covers all aspects of Ground Engineering serving a wide range of end markets.

• Energy
• Rail
• Highways
• Water
• Development
• Defence
• Nuclear Sectors
• Ports & Marine

Deliver: Lead and manage geotechnical projects from investigation through to design and construction ensuring high quality deliverables. We require ambitious team players with the technical and commercial skills, knowledge and experience to take day-to-day responsibility for delivery of projects, ensuring technical quality and adherence to budget and programme.

Innovate: Apply cutting‑edge approaches in ground investigation, geotechnical design, and construction including foundation design, slope stability assessment, and ground improvement.

Lead: The position will suit those who can work with a high degree of independence, who can support and develop junior team members, engage with internal and external clients developing relationships and lead the input to projects from desk study/feasibility through ground investigation and interpretation to final design.

To be successful candidates must have a proven track record in the delivery of ground engineering projects in the UK and be fully conversant with the technical standards that apply.

We develop projects from concept through to operation, providing engineering and construction services for large‑scale projects for major rail and transit agencies. Our specialists provide analytical and strategic expertise for every stage of a project.

What we’re looking for:

• Degree in Geotechnical Engineering (BSc or MSc), or a related field.
• Chartered status (Engineer) preferred.
• Ability to collaborate closely with our Technical Directors and Associates in project delivery, work winning and maintaining high levels of client satisfaction.
• Actively input to team and client meetings, being prepared to own decisions and put forward alternative ideas and concepts.
• Provide on‑the‑job mentoring of junior staff and support them towards achieving chartered status.
• Prepare, check and review a wide range of technical documents, including desk studies, interpretative reports, specifications, construction drawings and design reports.
• Prepare fee bids and proposals for internal and external clients.
• Demonstrable understanding of current design codes, standards, and best practices in geotechnical design, but also open to exploring new methods and innovations.
• Proven leadership experience in similar roles, with an ability to inspire and lead teams.
• Willingness to travel throughout the UK.
• Clean driving licence.

• You’re not just technically proficient—you’re passionate about pushing the field forward.
• You thrive on solving complex challenges and enjoy thinking outside the box to deliver sustainable and innovative solutions.
• You value teamwork, mentoring, and leadership, and you’re keen to help shape the future.
• While you’re familiar with established methodologies, you’re also eager to embrace new tools, technologies, and ways of thinking.

We celebrate diversity, including neurodiversity, and believe it enriches our team. We welcome applications from all backgrounds and abilities. If you are an applicant with a disability that requires reasonable accommodation to complete the application process, please contact us at Reaso

Interested in the…