Baseline & Change Engineer

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 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 addition to the benefits youd 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. Were happy to discuss hybrid part-time and flexible working hours patterns and locations to suit you and our business.

About the Opportunity

Nuclear Power Programmes has been formed with the vision to support positive change and help shape the future of Nuclear Power. Operational throughout the UK and across continental Europe we are seeking to expand our team on a variety of nuclear 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 diverse 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.

About the Role

Join the Sizewell C (SZC) Project Controls team and help deliver one of the UKs most significant infrastructure programmes. As a Baseline & Change Engineer youll play a key supporting role in ensuring that all project changes are effectively captured assessed and governed. Working alongside the Baseline & Change Manager within the Programme Management Office (PMO) youll support the coordination and implementation of change control processes that ensure the project is delivered safely on time and within budget.

This is an excellent opportunity for someone with early to mid-level experience in project controls PMO or commercial management to develop their career on a major programme.

Key Responsibilities

• Support the effective application of the change management process

• Assist in developing and maintaining change strategies and governance frameworks

• Support the facilitation of programme change committees

• Support the management of the programme baseline (scope cost schedule)

• Assist in producing monthly Baseline & Change reports

• Validate and maintain high-quality change data and reporting outputs

• Support Project Managers and Change Owners in applying change control procedures

• Work with delivery teams and PMO functions to ensure effective change implementation

• Provide guidance to improve understanding and compliance with governance standards

• Review and challenge change submissions

• Ensure all impacts (cost schedule risk) are properly assessed

• Support robust decision-making through high-quality data and documentation

• Ensure approved changes are correctly implemented across project systems

• Maintain consistency and integrity of programme-wide data

Heres What Youll Need

• Degree (or equivalent experience) in a relevant discipline

• Experience in: Project Controls PMO Programme or Commercial environments

• Understanding of: Change control processes Governance frameworks WBS / CBS structures

• Strong organisational and analytical skills

• Ability to manage multiple priorities in a fast-paced environment

• Effective communication and stakeholder engagement skills

Our Culture

Our values stand on a foundation of safety integrity inclusion and diversity. We put people at the heart of our business and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

We aim to embed inclusion in everything we do. We know that if we are inclusive were more connected and were more creative. We accept people for who they are regardless of age disability gender identity gender expression marital status mental health race faith or belief sexual orientation socioeconomic background and whether youre pregnant or on family leave. This is reflected in our wide range of Global Employee Networks.

We partner with VERCIDA to help us attract and retain diverse talent. 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

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