Portfolio Scheduler

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. 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

Amentum Technology have some exciting opportunities with our Independent Assurance and regulations team and are looking for a talented and enthusiastic portfolio scheduler who is keen to cement our existing expertise in delivering projects to our key clients and encouraging the growth of our business in this sector. The role is hybrid working with travel to Abbey wood, Bristol around 3 times per week. Consideration can also be given in respect to part time & flexible working hours.

The Portfolio Scheduler will be responsible for the creation, maintenance, and management of portfolio schedules, ensuring effective planning, monitoring, and delivery of project and programme objectives. The role requires intermediate to advanced expertise in Primavera P6, with a focus on managing dependencies, reporting, and analysis at both project and portfolio levels.

Key Responsibilities

The Portfolio Scheduler will be expected to:

• Develop, manage, and maintain portfolio-level schedules using Primavera P6, ensuring alignment with programme objectives and timelines across multiple projects.
• Create and manage schedule baselines, ensuring all changes are controlled and documented through baseline change control processes.
• Perform regular updates to live schedules, ensuring accuracy and reflecting the latest project and portfolio status.
• Conduct Schedule Variance Reporting to identify deviations from the baseline and provide insights into potential impacts at both project and portfolio levels.
• Perform Critical Path Analysis to identify key milestones and activities that may impact delivery timelines.
• Collaborate with project teams to ensure schedules are realistic, achievable, and aligned with resource availability.
• Provide regular schedule updates and reports to stakeholders, ensuring clear communication of progress, and schedule risks.
• Support the integration of schedules with other portfolio management tools and processes as required.

Here’s What You’ll Need

• Proven experience as a Primavera P6 planner, with the ability to create, manage, and analyse complex schedules at both project and portfolio levels.
• Intermediate-level proficiency in Microsoft Excel, including the ability to create and manipulate data for reporting purposes.
• Strong understanding of schedule baseline creation and management, including baseline change control processes.
• Experience in maintaining live schedules and ensuring their accuracy.
• Proficiency in Schedule Variance Reporting and Critical Path Analysis.
• Excellent organisational and time management skills, with the ability to prioritise tasks in a dynamic and changing environment.
• Strong communication and interpersonal skills, with the ability to engage effectively with stakeholders at all levels.

Desirable Skills and Experience (Training Provided)

• Experience using Microsoft SharePoint for document management and collaboration.
• Beginner to intermediate-level skills in Microsoft Visio for process mapping and diagram creation.
• Beginner to intermediate-level skills in Microsoft Planner for task and project tracking.

Reporting and Governance

The Portfolio Scheduler will report to the Change Programme Manager and will be required to provide regular updates on schedule status, risks, and issues. They will also participate in project and portfolio-level meetings and contribute to the overall success of the programme delivery objectives.

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 the team.

Requests for accommodation will be considered on a case-by-case basis.

If you need assistance, please reach out to

For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at

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