Principal Geotechnical Engineer

LSTC Group Ltd is a powerhouse in delivering full turnkey solutions that shape the future of the electricity sector. As part of the SOCOTEC Group, we are a leading infrastructure testing and asset inspection specialist serving the UK's regulated energy sector.

From initial design to inspection of assets, our work makes a real difference to clients and communities, with sustainability at the core of everything we do. With contracts across multiple sectors in the UK's power transmission and distribution infrastructure, we use our expertise to solve diverse engineering challenges, enhancing reliability and efficiency across the network.

Our extensive in-house capabilities eliminate the need for multiple suppliers and simplify processes for our clients. We provide comprehensive services including:

• Geotechnical & Foundation Engineering
• Substation Design
• Asset Inspection
• Infrastructure Projects
• Surveying and Earthing Services

We support transmission owners, distribution network operators, independent connection providers, and project developers who collectively invest billions annually in maintaining and expanding the UK's energy infrastructure.

Are you ready to take the next step in your geotechnical career and help shape the future of ground engineering at LSTC?

We're looking for an experienced Principal Geotechnical / Geoenvironmental Engineer to join our team in Tadcaster. This is a fantastic opportunity for a technically strong, commercially minded engineer to combine hands-on project leadership with a genuine influence over how our geotechnical and geoenvironmental capability grows across the business.

What you'll be doing

• Leading with expertise – Acting as a trusted technical authority, you'll guide project managers and mentor junior engineers, helping to raise the bar across the Geotechnical Reporting team.
• Owning projects, start to finish – Taking full ownership of standalone Geotechnical, Geoenvironmental and Foundation projects, from client briefs through to delivery, budget control and site/office meetings.
• Shaping the way we work – Driving forward LSTC's geoenvironmental procedures, quality systems and best practice, keeping us ahead of evolving legislation and industry standards.
• Championing safety and compliance – Leading on Health & Safety and CDM matters, ensuring every deliverable meets the highest standards of quality and regulatory compliance.
• Growing our people – Reviewing team performance, mentoring engineers, running staff reviews, and building a high-performing, engaged team.
• Winning new work – Spotting and shaping new tender opportunities, preparing costs and proposals, and advising on timescales and deliverables.

What we're looking for

• A Master's Degree (or equivalent) in Civil Engineering, Geology, Geotechnical/Geoenvironmental Engineering or a related field.
• Chartered status with a relevant Professional Institution.
• 10+ years' experience in geotechnical and/or geoenvironmental engineering and site investigation, including managing large-scale ground investigation projects.
• Advanced, up-to-date knowledge of relevant industry legislation and best practice.
• A track record of mentoring and developing junior engineers.
• Strong ability to juggle competing priorities, meet demanding deadlines, and bring together multi-disciplinary inputs into robust, risk-mitigated solutions.
• Experience in the OHL (Overhead Line) industry is a plus.
• A valid UK driving licence (or one acceptable to our insurers), and a willingness to travel to other LSTC or client offices as required.

This is more than a technical role – it's a chance to genuinely influence the direction of our geotechnical practice, mentor the next generation of engineers, and take ownership…