Senior Planner

At Amentum were not just solving problems; were 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 youre 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.

Well 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.

Work-life balance and flexibility is a key focus area for us. Were happy to discuss hybrid part-time and flexible working hours patterns and locations to suit you and our business.

About the Opportunity

We are recruiting a Senior Planner - the role will support key project deliverables across our nuclear project portfolio at an exciting time in the project to join an established team of Planners.

Accountable to the Planning Lead and Senior Project Controls Manager you will be responsible for creating maintaining and managing the Programme of Work for your responsible area. This includes but is not limited to:

• Establish project activities logic calendars and milestones.

• Coordinate programme inputs with respective stakeholders.

• Monitor actual progress against planned progress through weekly and monthly programme planning cycles.

• Support impact assessment of scope changes variances delays and dependencies on the programme.

• Maintain integrity of the programme via routine health checks (DCMA etc).

• Provide detailed analysis of programme progress to scope owner in support of variance narrative.

Heres What Youll Need

• Planning & Scheduling Expertise: Advanced knowledge of scheduling methodologies tools and techniques.

• Analytical Thinking: Ability to interpret complex schedule data and provide actionable insights.

• Systems Proficiency: Skilled in Primavera P6 MS Project Excel

• Experience managing and administering Oracle Primavera P6 Experience in multi-user project environments including configuration of EPS OBS calendars resources and activity codes would be an advantage

• Experience with implementing and executing Earned Value Management.

• Demonstrative experience of integrating subcontractor programmes into the Integrated Master Schedule.

• Communication: Strong written and verbal communication skills; able to present schedule data clearly to stakeholders.

• Collaboration: Experience working in cross-functional and international teams to develop and maintain programme.

• Quality & Accuracy: High attention to detail and commitment to data integrity.

• Leadership: Ability to lead planning efforts and support less experienced colleagues across various functions.

• Several years of experience in project planning and scheduling roles.

• Understand the inter-relationship between time cost and commercial aspects of the project life cycle.

• Exposure to Defence Nuclear Engineering or Consulting sectors is a plus.

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 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