Field Data Acquisition: Lead and support geophysical surveys using in-house survey equipment such as ERI, GPR, EM and HVSR.
Site Investigation: Assist in the design of survey programmes to identify subsurface risks like voids, utilities, or varying bedrock depth and integrate findings with geotechnical and geoenvironmental teams planning intrusive investigations.
Support the design of third party onshore surveys such as MASW, 2D reflection and refraction, wireline and cross-hole seismic, providing field supervision.
Support the design of third party near-shore marine surveys such as SBP, Magnetometer, 2D reflection and refraction, providing field supervision (offshore certification and training provided).
Data Processing and interpretation: Utilise industry-standard software (e.g. Res2DInv, Geolitix) to process raw field data into actionable models.
Assist with the interpretation of 2D and 3D seismic datasets (IHS Kingdom). Conduct structural analysis and fault mapping using geophysical, borehole, and field data and integrate with other datasets to support subsurface evaluations.
Develop an understanding of the underlying requirements of our clients, and how we can meet those requirements.
Reporting: Technical writing of factual and interpretive reports, ensuring high-quality visualisations and clear recommendations.
Safety & Logistics: Manage field equipment maintenance and uphold strict Health & Safety standards on-site.

We are looking for a motivated Junior Geophysicist with at least two years of professional experience to join our Subsurface Solutions team within the Earth and Environmental Operations Area. You will bridge the gap between complex data collection and practical engineering solutions, supporting environmental, defence and energy projects.
Education: A degree in Geophysics, Geology, or Civil Engineering (MSc preferred).
Experience: 2+ years in a commercial engineering or environmental geophysics environment.
Technical Skills: Proficiency in GIS (ArcGIS/QGIS) and geophysical processing software.
Field Readiness: Willingness to travel to remote sites across the UK and overseas when required, and work outdoors in varying weather conditions.
Licensing: A full, clean driving licence is essential.
Communication: Excellent written and verbal communication skills, including tailoring outputs to the requirements of different stakeholders.
Ability to manage time and priorities while working on several varied projects.
Ability to autonomously develop critically thought-out solutions and bring work scopes to the team, including the ability to show/communicate critical thinking in assessing other solutions.

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.

Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance

2 Part time Engineering / Technical jobs in Henley-On-Thames, Oxfordshire