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 and diverse 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.
About the Opportunity
Our Energy Division is leading to support positive change and help shape the future of Clean Energy.
Operational throughout the UK and across continental Europe, we are seeking to expand our team on a variety of clean energy projects, which range in technologies and that find themselves at different stages of their development. To do this, we are seeking to continuously employ talented individuals to join our team that are excited about nuclear projects and are committed to Net Zero, and Energy Security.
In both client facing and internal roles we are delivering major programme and project management capabilities throughout the project lifecycle. We are driving to deliver safe, high quality and to time solutions by thinking innovatively and working collaboratively.
Amentum are recruiting for a Senior Planner who will report to the Programme Planner and support the PMO function in providing Schedule and Planning Management expertise to the Client PMO & Programme teams.
In this role you'll develop, manage and maintain the delivery schedule for several of the Workstreams on the Project. Key responsibilities of the role include:
Coordinating and facilitating of Schedule workshops and reviews with Project Stakeholders
Liaising with Project Managers develop, manage, and maintain the Integrated Schedule
Producing periodic schedule reports to inform Senior Leadership
Ensuring suitable management and maintenance of Supply Chain schedules is being applied
Escalating schedule issues and concerns that may require senior level management or key stakeholder engagement for resolution or mitigation
Actively encouraging and embedding a Schedule Management culture by providing guidance to improve competency across the Project
Collaborating with the other Project Controls functions to ensure alignment is maintained
Maintaining alignment of all Project Stakeholders with best practice guidelines and recommend continuous process improvements as and when required.
Here's What You'll Need
Knowledge of project planning principles and techniques with experience of major infrastructure projects, ideally within a nuclear construction environment
Ability to time manage self and organize work priorities
Able to create a schedule from first principles
Expert knowledge of Primavera P6
MS Project and Excel experience to a high level
Mentoring &/or Coaching experience
Good communication and interpersonal skills including influencing
Ability to work in a team as well as on own initiative, with the capability to take responsibility for problems within their own capability and responsibility
Results focused with the ability to meet commitments and deadlines
Logical thinking, highly organised with attention to detail, high level of analytical and numerate skills
Will be required to travel to Project locations in Europe
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 the team.
Compensation Details:
GBP
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
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
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
03/18/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
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 (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, 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. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.
