Principal/Senior Land Quality Consultant in Didcot

At Amentum, we are driven by an unyielding commitment to innovation, integrity, and collaboration, tackling significant challenges in science, security, and sustainability. If you are 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.

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 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 would 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 are happy to discuss hybrid, part-time, and flexible working hours, patterns, and locations to suit you and our business.

Amentum provides client-oriented solutions across our environment, energy, and defence businesses. With a strong order book and a diverse, exciting portfolio of projects across the UK and internationally, we need to expand our team of environmental specialists across multiple disciplines required to deliver a project lifecycle—from new build and operations through to decommissioning and site end use. We offer opportunities for significant career advancement, attractive remuneration, and flexible working, as well as leadership and client relationship role development.

We are seeking a Principal or Senior Land Quality Consultant to join our established team working across our environment, energy, and defence businesses. In this role, you will serve as a technical lead on contaminated land projects and contribute to project management, client liaison, and mentoring of junior colleagues. You will help ensure our projects meet the highest standards of health, safety, and environmental compliance.

We offer flexible working arrangements (a mix of office-based and home working). This role can be based in Harwell, Rotherham, Cumbria, or Birchwood.

Key Responsibilities

• Technical Leadership: Act as a technical authority on land quality projects, guiding investigations, risk assessments, and remediation strategies.
• Project Management: Plan and deliver projects on time and within budget, including scheduling, resource allocation, and co-ordination with clients and subcontractors.
• Client & Stakeholder Engagement: Build and maintain strong relationships with clients, regulators, and other stakeholders, providing clear updates on project progress, risks, and potential solutions.
• Regulatory Compliance: Ensure all works adhere to UK environmental legislation and best practice for contaminated land management, particularly in high-hazard industrial contexts.
• Team Collaboration & Mentorship: Support junior staff by offering technical guidance and feedback; foster a positive working environment that promotes knowledge sharing and professional growth.
• Business Development: Contribute to proposals and bids, identifying opportunities to expand our land quality services and strengthen client relationships.

Here's What You'll Need

• Contaminated Land Experience: Demonstrable (5+ Years) experience in the investigation and remediation of contaminated land, with strong knowledge of risk assessment methodologies (qualitative and quantitative) for human health and controlled waters. Experience of applying the Environment Agency’s Remedial Targets Methodology would be advantageous.
• Regulatory Knowledge: Familiarity with relevant UK legislation, including Part 2A of the Environmental Protection Act and Environmental Permitting Regulations, and experience applying the CL:AIRE Definition of Waste Code of Practice (DoWCoP).
• Project Delivery: Proven record of successfully delivering medium-sized projects, including budgeting, scheduling, and team co-ordination.
• Education: Degree in Environmental Science, Geoscience, Engineering or a related subject (MSc or higher desired).
• Professional Qualifications: Progress towards (or attainment of) a relevant chartership (CGeol, CEnv) and/or Specialist in Land Condition (SiLC) accreditation is advantageous.
• Communication & Interpersonal Skills: Able to build rapport with clients and regulators, present complex information clearly, and work effectively in multidisciplinary teams.
• HSE Focus: Strong commitment to health, safety, and environmental excellence.
• Other: Willingness to travel to project sites across the UK and hold a valid UK driving licence.

This role provides an excellent opportunity for an experienced consultant looking to advance in technical leadership, project management, and client-facing responsibilities.

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration. We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.

When we embrace different perspectives and work together, we become more innovative, more agile, and more successful. We partner with VERCIDA for greater online accessibility. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process, please contact the team.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy, age, ancestry, United States military or veteran status, colour, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law.