Assistant Project Manager (Nuclear) | Asystent/Asystentka Kierownika Projektu (Energetyka Jądrowa)

OCONUS-Poland-Warsaw, Poland

Full Time

Posted October 2, 2026

Application opens on company website

Source: Workday View original listing
Freshness: Open in the current public read path; this is not an employer guarantee.Last observed October 7, 2026
Classification: Modern power-system classification not yet published for this listing.Legacy source industry field: Nuclear Energy
Pay provenance: Pay not available

We know that if we are inclusive, we’re more connected — and if we are diverse, we’re more creative.

Amentum is the Technical Advisor to PEJ Sp z o.o. (PEJ), which is the state-owned entity responsible for delivering Poland’s first nuclear power programme. The Technical Advisor’s (TA) role is that of an “Owner’s Engineer”, which is not involved directly in any NPP design or construction activity, but rather acts as an advocate for the Client, applying technical due diligence to all aspects of the process, along with supply chain and contract management support for plant and equipment vendors engaged by the Client. The TA fulfils this function through the delivery of engineering and technical packages of work (referred to as Service Authorisations, SA’s) which require the development, approval, implementation and reporting of a diverse range of engineering and technical methods by suitably qualified and experienced team members. The role of Assistance Project Manager is to support the Project Manager with the management of assigned multidiscipline projects within the engineering and technical programme of work through all phases, from inception to completion. The Assistant Project Manager collaborates with other project functions and may need to support certain administration tasks as necessary. We are happy to consider candidates available to work out of our Warsaw office.
You will be required to work from the office 3 days per week.

Bachelor’s degree (or equivalent qualification) in Engineering, Business, Project Management or a related discipline.
Minimum 4 years of professional experience in an engineering or technical environment.
Experience supporting projects and working within multidisciplinary teams is an advantage.
Proficient in Microsoft Office applications, including Excel, Word, PowerPoint and Outlook.
Strong interpersonal and communication skills, with the ability to build effective working relationships with stakeholders at all levels.
Ability to work collaboratively within project teams and in a fast-paced, multidisciplinary environment.
Strong organisational skills with the ability to manage priorities and meet deadlines.
Proactive, detail-oriented and capable of working independently when required.
Willingness and ability to obtain BPSS security clearance (or equivalent), if required for project delivery.

International working environment and unique company culture fostering individual career growth and work-life balance
Personal development opportunities and training in industry-leading tools
Friendly and supportive team atmosphere
Participation in global projects and process improvements
Full-time employment contract with competitive salary
Benefits package including medical care, life insurance, My Benefit cafeteria with co-financing for sports activities, employee wellbeing support program
Flexible working hours (start between 8:00–9:30)
Short Fridays (Monday to Thursday we work 8,5h. Friday is a 6-hour workday)
Modern office in an attractive location
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.