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Principal EC&I Engineer

Oxford, GBR; Oxford; Oxford,; United Kingdom
Full Time On-site

Summary

Job Description

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 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 talent.

In addition to the benefits you’d 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. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.

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 are recruiting a Principal EC&I Engineer to join our Fusion team, which has recently won several important projects and has a host of exciting new opportunities in research, engineering, operations and decommissioning.

As one of the newest departments in Amentum, we are regularly involved in delivering on exciting bids and projects with several different fusion clients and as such the ideal candidate needs to be someone with an engineering background, who has a demonstrable track record of contributing to and leading projects effectively.

This role will be based in our Culham and Harwell offices and there may be a need for periodic visits to client sites, as projects require.

The Fusion Principal EC&I Engineer will be responsible for contributing to and leading delivery of fusion projects for multiple customers in the UK and internationally, moreover they will:

  • Lead the technical delivery of engineering solutions with accountability for EC&I engineering activities on projects, and fostering a collaborative and inclusive team environment
  • Develop and substantiate electrical systems, control systems and instrumentation as part of broader engineering solutions applying relevant codes, standards, guidelines and best practices
  • Perform sizing calculations, specification and selection of EC&I equipment and systems, for example power distribution, cabling, instrumentation and control systems
  • Delivery of high quality technical documentation, for example calculations, specifications, datasheets and reports
  • Ensure that EC&I engineering solutions meet functional, performance and safety requirements including active involvement in verification and validation activities
  • Apply functional safety lifecycle management and execution in accordance with IEC-61508 and relevant industry standards
  • Conduct fault analysis and reliability assessments using recognised techniques, for example FMEA, FTA, HAZID and HAZOP
  • Review EC&I deliverables produced by others, providing constructive feedback in a supportive and respectful manner
  • Support, mentor and supervise engineers and students, promoting knowledge sharing, inclusiveness and personal development

Here’s What You’ll Need

  • Degree in relevant engineering discipline or demonstrable equivalent underpinning knowledge and understanding with relevant industry experience, apprenticeships or other non-traditional routes. Ideally working towards or attained chartered engineer status with an appropriate professional institution
  • Awareness of software based control systems, for example PLCs, FPGAs, SCADA, HMIs, DCSs, DPSs and SMART components
  • Health and safety focus with experience of relevant EC&I regulations, standards, guidelines and best practices
  • Proactive and collaborative approach to work, with the ability to take ownership of tasks and contribute effectively to team goals
  • Strong communication and interpersonal skills, with the ability to work with people from diverse backgrounds and disciplines
  • Competent technical report writing skills: clearly and concisely reporting findings

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 and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, we’re 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 you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centered on inclusion and diversity.

We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit www.vercida.com 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

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .

About Amentum

Amentum

Amentum is one of the largest government services and engineering companies supporting the U.S. military, intelligence community, and federal agencies. Headquartered in Virginia with more than 50,000 employees worldwide, Amentum delivers mission-critical support across defense, cybersecurity, engineering, logistics, intelligence, aviation, nuclear, and space operations. The company plays a major role in helping government agencies solve complex national security and infrastructure challenges.

For job seekers, Amentum offers a wide variety of career opportunities across engineering, cybersecurity, intelligence, logistics, IT, aviation maintenance, program management, and cleared government support roles. The company is especially attractive to veterans, transitioning military personnel, and security-cleared professionals looking to continue supporting national security missions while building long-term career stability. Amentum also has a strong reputation for career mobility, education support, and mission-focused work across hundreds of federal programs.

Unlike many companies focused on a single niche, Amentum supports a broad range of high-impact missions—from military readiness and intelligence operations to NASA programs, cyber modernization, and critical infrastructure support. Employees often work on programs that directly support the Department of Defense, intelligence agencies, and federal civilian missions, creating opportunities to build diverse experience while contributing to meaningful national security outcomes.

As government investment continues to grow in cyber, space, engineering, and mission modernization, Amentum remains one of the strongest employers in the government contracting sector. For professionals seeking a stable, mission-driven career with opportunities for advancement, technical growth, and meaningful impact, Amentum continues to stand out as a top employer in defense and federal services.

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