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.

About the Opportunity

Are you ready to shape the future of some of the UK’s most complex and nationally significant projects?

As demand for our environmental expertise continues to grow owing to positions on a number of significant multi-year frameworks, we're looking for a Principal Environmental Consultant to join our thriving Environmental Management and Permitting team. From supporting nuclear decommissioning and next-generation nuclear technologies to advising the Ministry of Defence and major industrial clients, you'll play a key role in helping projects navigate environmental challenges, regulatory requirements, and permitting obligations with confidence.

Reporting to the Environmental Management and Permitting Team Leader, you will be a senior member of a team of environmental professionals working to ensure that all environmental aspects and regulatory permitting requirements of the projects are managed effectively.

The Role

You will play a leading role in delivering complex environmental management, permitting and regulatory compliance projects across the nuclear, defence and wider infrastructure sectors. Drawing on your technical expertise and industry experience, you will lead multidisciplinary teams in developing environment cases, environmental permit applications, regulatory submissions, environmental assessments and compliance programmes that support the successful delivery of nationally significant projects.

You will work closely with clients, regulators and project stakeholders, providing trusted technical advice and helping organisations navigate complex environmental challenges and evolving regulatory requirements. The role offers the opportunity to shape projects spanning nuclear decommissioning, next-generation nuclear technologies, Ministry of Defence programmes and major infrastructure developments, ensuring environmental risks are effectively managed and compliance obligations are met.

Beyond project delivery, you will contribute to the continued growth of the business by strengthening client relationships, identifying new opportunities, supporting bids and proposals, and helping to develop our service offering. You will also play a key role in mentoring and developing colleagues, sharing technical knowledge, building team capability and fostering a collaborative, high-performing culture.

As a senior member of the Environmental Management and Permitting team, you will help drive continuous improvement across our projects and services, contributing to the development of technical standards, best practice approaches and innovative solutions that maintain our reputation for delivering high-quality environmental consultancy services.

Key responsibilities

• Provide clear environmental leadership and build strong working relationships in project teams, and across sectors within Amentum.
• Act as the primary environmental interface with key stakeholders, including environmental regulators.
• Lead and provide technical advice on regulatory compliance including production of environment permitting roadmaps and strategies. Manage the application for environmental permits for aqueous and gaseous discharges and waste management.
• Deliver environmental management on projects, including oversight of compliance and liaison across project teams with blue and white collar members.
• Lead and provide oversight of site based environmental assurance, including the development and delivery of audits (for example, in direct relation to design and construction works).

Qualifications/Education/Experience

• Extensive experience in environmental consultancy, working in teams on highly regulated projects. Evidence of work in the nuclear sector ideal.
• Strong, working knowledge of UK environmental permits, licences, and compliance arrangements. Experience working with regulators and managing regulatory commitments.
• Strong leadership, influencing, communication, and stakeholder management skills.
• High standards of organisation, detail, assurance, and professional judgement.
• Degree in Environmental discipline.

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 please visit www.vercida.com to view and access our roles. 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 (for example, you require the application form in a different format), please contact michael.oliver@global.amentum.com