Decommissioning Engineer / Manager (Multiple Levels)

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.

About the opportunity
Amentum delivers programme, engineering and technical support services across complex infrastructure and environmental projects, including nuclear decommissioning, waste management, and large-scale capital programmes.
Our teams support clients across Europe through provision of technical expertise, project management and programme support services, working in highly regulated and multidisciplinary environments.
We are expanding our capability in Central and Eastern Europe and are seeking Decommissioning Engineers / Managers to support a range of projects, including nuclear decommissioning programmes and infrastructure projects delivered under PMU and FIDIC-based frameworks.

Role overview
We are seeking Decommissioning Engineers / Managers across multiple experience levels to support the planning, coordination and technical delivery of complex projects.
The role involves providing engineering and project support services to clients, including development of technical solutions, coordination across disciplines, and support to safe, compliant and efficient project delivery.
This is a client-facing role focused on technical oversight, coordination and advisory support rather than direct execution of construction or decommissioning works.

You may be based in Czechia, Slovakia, Poland or Lithuania.

Key responsibilities

• Support planning and coordination of technical project activities, including: 

o    development and review of technical strategies and methodologies 
o    definition of work sequences, phasing and delivery approaches 
o    identification of constraints, risks and interfaces 

• Provide technical input into: 

o    engineering solutions and methodologies 
o    material and waste flows (where applicable) 
o    site logistics, constructability and sequencing 

• Support preparation and review of technical documentation, including: 

o    engineering studies and reports 
o    method statements and technical notes 
o    project and work package documentation 

• Coordinate interfaces across technical disciplines, including: 

o    engineering design 
o    environmental and waste considerations 
o    health, safety and regulatory compliance 
o    project and construction management 

• Support clients in oversight of project delivery, including: 

o    monitoring progress against scope, schedule and deliverables 
o    identifying and managing technical risks and issues 
o    providing technical guidance and recommendations 

• Contribute to project and programme reporting, including: 

o    progress updates and technical inputs 
o    contribution to dashboards and reports 
o    participation in technical and coordination meetings 

• Operate within a multi-stakeholder environment, supporting coordination between: 

o    clients and funding institutions 
o    contractors and suppliers 
o    multidisciplinary project teams 

Level and experience alignment
This role is open to candidates across different experience levels:

• Junior / early career: up to ~6 years experience 

• Mid-level: typically 6–12 years experience 

• Senior level: typically 12–20 years experience 

• Expert level: 20+ years experience 

Responsibilities and scope will be aligned to experience level and project requirements.

Requirements

• Experience in decommissioning, engineering, infrastructure or environmental projects 

• Experience working in regulated or complex project environments 

• Understanding of: 

o    engineering project delivery and methodologies 
o    construction or decommissioning sequencing and planning 
o    health, safety and environmental considerations 

• Ability to contribute to technical documentation and engineering deliverables 

• Experience working in multidisciplinary teams 

• Relevant degree (engineering or related discipline) or equivalent experience 

• Strong communication skills and ability to work in client-facing roles 

• English language proficiency (minimum B2 level) 

Desirable

• Experience in nuclear decommissioning or radioactive waste management 

• Experience working under FIDIC contracts or PMU environments 

• Experience supporting international financing institutions (e.g. EBRD, EIB, World Bank) 

• Experience in Central and Eastern Europe projects 

• Experience interfacing with regulators or permitting processes

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.