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Amentum

Government engineering and technical services provider

Contract Engineering Lead

Full-TimeUpdated on 10/6/2026
No salary listed
Mid
Bachelor's
London, UK
Hybrid

About the job

Requirements
  • Proven experience managing design delivery within nuclear safety and/or high-security environments.
  • Demonstrated capability designing facilities to withstand internal and external hazards.
  • Strong experience leading multidisciplinary design coordination on large infrastructure projects.
  • Solid technical understanding of building design, construction, and UK standards.
  • Detailed knowledge of RIBA Plan of Work (2013 or equivalent).
  • Awareness of nuclear safety constraints, UK regulatory and Construction (Design and Management) requirements.
  • Ability to work independently, maintain discretion, and manage sensitive information.
  • High level of information technology literacy and confidence with engineering software tools.
  • A degree or equivalent in Civil, Structural, Architectural, Mechanical, Process, or a related Engineering discipline.
  • Good knowledge of UK nuclear regulations and legislation.
  • Ability to obtain or hold National Security Vetting – Counter Terrorism Check (NSV CTC).
Responsibilities
  • Hold technical and design delivery accountability for the SZC2203 and SZC2205 contract buildings within the Design Delivery Management – Site Buildings team.
  • Manage end-to-end design delivery from basic design through detailed design, ensuring outputs meet time, cost, quality, safety, and scope requirements in a nuclear-regulated environment.
  • Act as Responsible Designer for the SZC2203/2205 contracts.
  • Provide day-to-day technical leadership, planning, coordination, and risk mitigation across a complex, multidisciplinary supply chain.
  • Lead design accountability, contract and design management, coordination and technical assurance, planning and deliverables control, reviews and change and risk management, commercial and programme interface, and discipline leadership.

About the company

Amentum provides technical and engineering services to government agencies to support high-stakes missions such as space launch, nuclear cleanup, and military operations. Its offerings combine workforce, engineering, and mission-support capabilities across the full lifecycle—from planning and design to operations and sustainment—delivered as contracted services. The company differentiates itself through scale and breadth: formed from a spin-off and expanded by acquiring DynCorp and PAE, and later merging with Jacobs’ Critical Mission Solutions and Cyber & Intelligence units, making it one of the largest government services contractors with about 53,000 employees and a public listing (AMTM). Its main goal is to help the U.S. and its allies achieve mission success for critical national programs by providing comprehensive, reliable government-focused technical services.

Company Size

10,001+

Company Stage

Post IPO Equity

Headquarters

Chantilly, Virginia

Founded

2020

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Simplify's Take

What believers are saying

  • On September 29, 2026, Amentum won a $572.3 million NORAD sustainment contract.
  • On October 1, 2026, Sellafield named OneAxIoM preferred supplier for a $2.78 billion framework.
  • On September 1, 2026, SSEN Transmission selected Amentum for cyber upgrades across Britain's grid.

What critics are saying

  • Maryland WARN notices cut 382 Hanover jobs by November 2026 after intelligence-contract transitions.
  • A January 23, 2026 False Claims Act case against Amentum adds reimbursement and reputational risk.
  • Protests, schedule slips, or safety incidents can crush backlog conversion and trigger catastrophic contract loss.

What makes Amentum unique

  • Amentum controls mission-critical nuclear, cyber, and defense infrastructure across the US and UK.
  • Its 2024 Jacobs merger created a 50,000-employee scale advantage in cleared programs.
  • Incumbency at Sellafield, Sizewell C, and Cheyenne Mountain deepens switching costs.

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Benefits

Hybrid Work Options

Company News

Amentum
Oct 1st, 2026
One Amentum: celebrating two years as a public company.

One Amentum: celebrating two years as a public company. October 1, 2026 - October 1, 2026, marks an exciting milestone for Amentum: two years as a publicly traded company on the New York Stock Exchange under the ticker symbol AMTM. It has been a transformative journey since its debut in 2024, not just for its company but for the missions Amentum Holdings, Inc. support, the partnerships Amentum Holdings, Inc. has built, and the communities Amentum Holdings, Inc. serve. Two years ago, Amentum became One Amentum by bringing together the combined expertise of approximately 50,000 employees in more than 70 countries. A strategic merger combination allowed Amentum Holdings, Inc. to become a global leader in advanced engineering and innovative technology solutions. Guided by its mission-focused mindset, Amentum aligned its deep technical capabilities and global reach with the pressing needs of its customers: spanning global markets in defense, intelligence, national security, energy, and space. Together, Amentum Holdings, Inc. forged an organization with agility, technical expertise, and innovation needed to tackle its customers' toughest challenges in an evolving world. Milestones Safety remained a top priority, with more than 400 of its global programs recognized for outstanding safety performance by the National Safety Council. Amentum Holdings, Inc. is proud of its recognition as the No. 1 Military Friendly(R) Employer in 2026 and its ongoing support of military families and veterans. This commitment extends to the United Kingdom, where Amentum Holdings, Inc. earned the Ministry of Defence Employer Recognition Scheme Gold Award for supporting the Armed Forces community. Amentum Holdings, Inc. celebrated another major milestone - its debut on the Fortune 500 list at No. 313. Just a month later, TIME named Amentum one of America's Best Companies, citing its financial strength, sustainability practices, and employee satisfaction. These accomplishments underscore the ongoing dedication of its workforce and its commitment to delivering value to customers, stakeholders, and communities. Innovation At Amentum, Amentum Holdings, Inc. know that the future requires constant innovation. Over the past two years, Amentum Holdings, Inc. has expanded its investments in technologies such as AI-powered systems, autonomous capabilities, and smart infrastructure. These tools are helping Amentum Holdings, Inc. deliver cutting-edge solutions for customers on missions ranging from modernizing defense systems and logistics in the Indo-Pacific to advancing U.S. space exploration efforts under NASA programs like Artemis to sustainably powering data centers. Building the Future At the heart of Amentum's success is its people. Their expertise, commitment, and drive are what fuel its ability to anticipate and solve its customers' most complex problems. More than 24,000 employees participated in its first global engagement survey to shape its collective vision for the future. As Amentum Holdings, Inc. look ahead, Amentum is focused on accelerating growth in emerging markets like global nuclear energy, space systems, and critical digital infrastructure. These sectors are critical to tackling some of today's biggest challenges, including energy security, technological advancement, and sustainability. Two years in, Amentum Holdings, Inc. is proud of what Amentum Holdings, Inc. has accomplished, from delivering game-changing solutions for its customers to becoming a recognized leader in multiple sectors. But this is just the beginning. As technology advances and global demands evolve, Amentum is building solutions to advance the future together, for tomorrow.

Washington Technology
Sep 30th, 2026
Trax loses White Sands protest, but judge hits government over AI disclosures.

Trax loses White Sands protest, but judge hits government over AI disclosures. Stay Connected Find opportunities - and win them. By Nick Wakeman , Editor-in-Chief, Washington Technology September 30, 2026 10:28 AM ET The Army tested an artificial intelligence tool on the $450 million competition, and its outputs reached evaluators and the contracting officer. The government did not provide many details on that until the judge pressed. Trax International Corp. may have lost its protest at the U.S. Court of Federal Claims, but the government's lawyers may be in some hot water for not being forthcoming with the judge. Over the summer, Trax challenged the Army's decision to award a $450 million mission support services contract at the White Sands Missile Range in New Mexico to the Southwest Range Services joint venture. SA-Tech, Amentum and EWA Warrior Services are partners in the JV. TRAX laid out several challenges to how the Army conducted evaluations, including the fact that the service branch used artificial intelligence to evaluate proposals. Trax argued that the Army's Fast Track AI tool committed several hallucinations that gave the impression that the proposal by Southwest Range Services was superior to Trax's bid. Judge Carolyn Lerner denied that argument because TRAX could not identify any actual errors in the evaluation that could be traced to the AI tool. Lerner wrote in her Sept. 22 ruling that while she "cannot entirely rule out the use of AI," TRAX needed to show more. But at the same time, the Army drew the judge's ire because their story about how they used the AI tool changed over the course of the case. The judge has written a still-sealed show cause order to force the government to explain itself on the record. The show cause order will not change the outcome for TRAX, but it could result in some sanctions for the attorneys representing the Army. Lerner wants the government to "explain the errors and misrepresentations in its briefing" on TRAX's motion to add the AI evaluations to the record. The dispute over the record began when Trax asked the court to add the AI outputs to the administrative record. The government said a procurement analyst had run the proposals through Fast Track to test whether the tool could be used in future source selections. According to the government, the evaluation board saw only one output from a third unnamed bidder and only on a screen. Board members judged it unusable and none of the outputs were entered into the contract file or used in the decision, the government said. That account did not hold up. When Lerner ordered the Army officials to answer specific questions in supplemental declarations, the procurement analyst acknowledged for the first time that he had also sent the AI evaluations of the TRAX and Southwest Range proposals to three people. Two were members of the evaluation board and the third person was the contracting officer. Lerner called it a "belated admission." She ruled that the AI evaluations need to be in the administrative record because they are "relevant to the process" and bear directly on "Trax's claim that AI-assisted review introduced errors that infected its technical evaluation." Once the AI outputs were in the record, it became clear the board's evaluation of the third bidder contained passages that were nearly sentence-for-sentence identical to the AI-generated evaluation. Lerner has written her show cause order, but the government has asked for more time to submit redactions to the order. Redactions were due Sept. 30 (today) and the judge's response is expected Oct. 13.

Washington Technology
Sep 29th, 2026
Amentum wins $572M NORAD warning system contract.

Amentum wins $572M NORAD warning system contract. Stay Connected Find opportunities - and win them. September 29, 2026 01:49 PM ET The North American Aerospace Defense Command uses this system to determine the nature of launches and attacks from adversaries. Amentum has won a seven-year, $572.3 million contract to help the North American Aerospace Defense Command operate and maintain a system designed to assess missile launch and surveillance information. NORAD's Cheyenne Mountain Complex in Colorado is home to the Integrated Tactical Warning/Attack Assessment and Space Support system, also known as NCMC - ITW/AA. The system works to integrate and correlate information from certified sources to determine the nature of adversaries' launches and attacks, then issue warnings to military leaders. The Air Force received seven bids for the third iteration of the NORAD Cheyenne Mountain Complex-Integrated Tactical Warning/Attack Assessment and Space Support Contract, according to the Pentagon's Monday awards digest. Amentum can claim this as an incumbent win, given that Jacobs won the current NISSC II iteration in 2020 and spun off its federal services businesses to Amentum in 2024. Roughly $547 million in order volume has flowed through the current contract, according to GovTribe data. Amentum will work in areas such as system administration, vulnerability management, organizational-level maintenance and test support for the warning system. The NCMC-ITW/AA's user base includes the U.S. National Command Authority, National Military Command Center, combatant commanders and members of Canada's national leadership team.

Modular Genius, Inc.
Sep 22nd, 2026
Modular Genius awarded Modular office project for Amentum.

Modular Genius awarded Modular office project for Amentum. Amentum supports the Department of the Army with the disposal of aged munitions, and its onsite team in Huntsville, Alabama needed a dedicated place to work. To get that space in place quickly, Amentum turned to Modular Genius. Modular Genius has been awarded a 4,256 sq. ft. modular office project for Amentum, delivering a new single-story building. The layout includes 12 offices and two restrooms, an IT and storage room and a locker room. This building will give Amentums staff a fully functional working space right on the jobsite in a short window of time. Completion is scheduled for Q4 2026.

Security Journal UK
Sep 2nd, 2026
Amentum selected for upgrades to UK's energy grid.

Amentum selected for upgrades to UK's energy grid. September 2, 2026 * Mark Fletcher Amentum has been selected for strategic positions on two significant UK energy frameworks awarded by Scottish and Southern Electricity Networks (SSEN) Transmission. Amentum will be the exclusive provider of high-end cybersecurity engineering services which aim to digitize and enhance the security of the United Kingdom's energy grid. SSEN Transmission is the owner and operator of the high-voltage electricity transmission system for the north of Scotland, powering the clean-energy transition and delivering a reliable, efficient network that creates lasting benefits for communities, the economy and the environment. Secure by design. "SSEN Transmission is expanding the grid at a pace the UK's energy security depends on, and that growth must be secure by design," said Matthew Morgan, UK-based group director for Security, Systems and Integration at Amentum. "Its teams will protect critical assets, scale digital capability and turn operational data into faster, better decisions. "We are investing in our team in Scotland to deliver this work, backed by Amentum's deep UK and international experience." Working from offices in Cardiff, Glasgow, London and Warrington, Amentum will build upon existing security architecture work the company has performed for SSEN Transmission since 2022. Digital transformation. Under three-year agreements, Amentum will leverage its expertise in digital transformation, operational technology (OT) and renewable energy integration to support the UK's energy transition goals. "The Five Eyes cyber security agencies have recognized the impact of AI in accelerating the speed, scale and sophistication of cyber threats. Leveraging Amentum's proven expertise in modernizing and securing critical digital infrastructure, we can support SSEN Transmission in addressing one of the most serious challenges of our time," said Jennifer Walsmith, president of Intelligence & Cyber at Amentum. "We look forward to delivering the innovation and security needed to strengthen the UK's energy future." 92% probability of a major attack on UK battery energy storage. State of play: Europe's door intercom market. Secured by Design welcomes KYNEKT as a new member.