Leidos

Leidos

Defense, intelligence, and civil IT solutions

Security Architecture & Engineering Lead

Full-TimePosted on 7/21/2026
$107.9k - $195.1k/yr
Senior, Expert
Bachelor's
Remote in USA
Remote
No H1B Sponsorship

About the job

Requirements
  • A bachelor's degree and 8–12 years of prior relevant experience are required.
  • Demonstrated experience leading security architecture and engineering activities throughout the system development life cycle for complex Department of Defense systems is required.
  • Demonstrated experience developing and implementing cybersecurity architectures integrating hardware, software, networking, and operational technology components into existing Department of Defense enterprise or tactical network environments is required.
  • Demonstrated experience planning and executing the Risk Management Framework process, including development of artifacts required to obtain an Interim Authority to Test, Interim Authority to Operate, and/or Authorization to Operate, is required.
  • Demonstrated experience developing, maintaining, and managing Risk Management Framework documentation and artifacts, including System Security Plans, Security Assessment Plans, Security Assessment Reports, Plans of Action and Milestones, eMASS packages, and supporting accreditation documentation is required.
  • Demonstrated experience developing, reviewing, and implementing Security Technical Implementation Guides, Assured Compliance Assessment Solution scanning requirements, vulnerability remediation plans, and security compliance documentation for Department of Defense information systems is required.
  • Demonstrated experience identifying, assessing, and mitigating cybersecurity risks associated with integrating commercial, government, and third-party vendor systems into existing Department of Defense network environments is required.
  • Demonstrated experience leading technical integration efforts involving multiple engineering disciplines, subcontractors, vendors, and government stakeholders while ensuring compliance with Department of Defense cybersecurity policies, Risk Management Framework requirements, and accreditation objectives is required.
  • Demonstrated experience executing systems engineering activities including technical planning, system architecture, technical design, development, integration, verification, validation, and transition to operational use is required.
  • Demonstrated experience designing, engineering, implementing, integrating, maintaining, and continuously improving secure hardware, software, communications, and infrastructure components supporting mission-critical systems is required.
  • Demonstrated experience serving as a cybersecurity engineering lead or technical authority responsible for security accreditation activities supporting operational assessments, developmental testing, field demonstrations, or system deployment is required.
Responsibilities
  • Develop the cybersecurity integration strategy for incorporating multiple original equipment manufacturer sensing technologies into the Rock Island Arsenal Increased Access Prototype while balancing mission effectiveness, interoperability, operational usability, and cybersecurity compliance within the existing Rock Island Arsenal enterprise environment.
  • Plan, coordinate, and execute cybersecurity engineering activities throughout the prototype lifecycle, including security architecture development, Risk Management Framework implementation, Security Technical Implementation Guide compliance, Assured Compliance Assessment Solution vulnerability management, and development of accreditation artifacts.
  • Serve as the program's primary cybersecurity engineering lead and technical authority for integration, accreditation, testing, and operational assessment of force protection sensing technologies.
  • Ensure cybersecurity requirements are integrated into system design, development, integration, verification, and operational validation activities.
  • Oversee the secure integration of multiple vendor solutions into an existing Department of Defense enterprise environment.
  • Identify and mitigate cybersecurity risks associated with integrating commercial off-the-shelf, government off-the-shelf, and prototype technologies.
  • Collaborate with government stakeholders, engineering teams, subcontractors, commercial technology providers, systems engineering, software engineering, networking, integration and test, and program management organizations to resolve technical issues, manage cybersecurity risks, support operational assessments, and enable fielding of a secure prototype.
Desired Qualifications
  • Experience obtaining Interim Authorities to Test or Interim Authorities to Operate for prototype systems supporting operational assessments, user evaluations, or developmental testing.
  • Experience supporting Army, Joint, or other Department of Defense rapid prototyping and capability demonstration efforts.
  • Experience integrating commercial off-the-shelf, government off-the-shelf, and third-party vendor technologies into accredited Department of Defense environments.
  • Experience with Zero Trust Architecture, DevSecOps, Continuous Authorization to Operate, and cloud-enabled security architectures.
  • Professional cybersecurity certifications such as Certified Information Systems Security Professional, Certified Associate of Security Professional Plus, Security+, Certified Cloud Security Professional, or equivalent.

About the company

Leidos is a large technology and engineering company that serves defense, intelligence, healthcare, and civil government customers. It provides scientific, engineering, and IT solutions to help ensure safety, health, and efficiency, from upgrading air traffic control to strengthening cybersecurity for critical missions. The company delivers integrated systems and services—software, research, cyber defense, and digital modernization—through programs that span government and commercial clients. Leidos stands out through its long history as SAIC’s split-off and rapid growth via major acquisitions, creating a broad, mission-focused portfolio across defense, space, intelligence, and civilian sectors. Its overarching goal is to help customers solve hard problems with advanced technology, enabling safer operations and better public services.

Company Size

10,001+

Company Stage

IPO

Headquarters

Reston, Virginia

Founded

1969

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Simplify's Take

What believers are saying

  • Q2 2026 revenue rose 7% to $4.6 billion, with $5 billion booked awards.
  • Leidos raised 2026 guidance to $18.2 billion-$18.4 billion and $12.20-$12.50 EPS.
  • New contracts for Military OneSource and CBP MEM Systems broaden Homeland growth beyond Navy work.

What critics are saying

  • August 2022 DOJ antitrust subpoena remains open, keeping legal overhang alive in 2026.
  • Health revenue fell 7.6% in Q2 2026, signaling weakness inside a high-margin segment.
  • Entrust integration and NorthStar 2030 restructuring hit margins; Q2 adjusted EBITDA margin dropped to 13.8%.

What makes Leidos unique

  • Leidos owns entrenched Navy network operations since 2020, now renewed at $926 million.
  • Kudu Dynamics powers Parcata, Leidos' DARPA-validated AI platform for autonomous vulnerability remediation.
  • Leidos combines defense, intelligence, and civil mission software with $48.7 billion backlog.

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Benefits

Medical, dental, & vision insurance

Health Savings account

Income protection

PTO

Paid parental leave

Jury duty pay

Bereavement leave

401(k) Retirement Plan

Employee Stock Purchase Plan

Family Benefits

Growth & Insights and Company News

Headcount

6 month growth

8%

1 year growth

8%

2 year growth

8%
GovCon Wire
Sep 16th, 2026
Brooke Pierce joins DLH as president of health business group.

Brooke Pierce joins DLH as president of health business group. * Brooke Pierce will oversee technology, scientific research, AI, data analytics and mission-support services at DLH * Pierce previously served as Leidos' defense enterprise vice president and cyber operations division manager * Her Leidos experience included AI-driven modernization, cloud and cybersecurity services DLH Holdings has named Brooke Pierce president of its health business group, effective Sept. 14. The Atlanta-based company announced the appointment on Monday. Commenting on Pierce's appointment, DLH President and CEO Kathryn JohnBull said, "Brooke's experience building high-performing health and technology organizations that deliver operational excellence to customers, profitable growth, and organizational development at scale will be invaluable as we advance DLH's health strategy." The appointment comes as federal health agencies prepare for FY27 priorities involving AI, digital tools and healthcare technology. The Potomac Officers Club's 2026 Healthcare Summit will bring senior leaders from HHS, the Defense Health Agency and the Veterans Health Administration together to discuss these priorities. Register today! Who is Brooke Pierce? Pierce is a former Leidos executive with nearly two decades of experience leading federal programs and global operations. Before joining DLH, she served as vice president of the defense enterprise and cyber operations division manager at Leidos, where she supported artificial intelligence-driven modernization initiatives and oversaw the delivery of cloud and cybersecurity services. Previously, Pierce led Leidos' Marine Corps and international portfolio. She also served as deputy program executive for the Department of the Navy's Next Generation Enterprise Network Service Management, Integration and Transport program, supporting more than 4,500 personnel at more than 1,500 locations. Earlier in her tenure at Leidos, Pierce led efforts to recover high-risk federal programs, including a $1 billion infrastructure and hosting contract. She also helped establish Leidos' Independent Program Assessment framework for evaluating program health and informing executive decision-making. Prior to Leidos, Pierce held leadership roles at Cotiviti, ARDX and FEI Systems, where she oversaw government services operations, program delivery and business development for federal health portfolios. Her earlier career included program management roles at Northrop Grumman, CORMAC and other organizations focused on health IT and technology. What will Pierce oversee? As head of DLH's health business group, Pierce will drive growth and strategic direction spanning technology, scientific research, AI, data analytics and mission-support services for the company's federal health customers. She will also oversee day-to-day execution, manage customer relationships and build up staff. Pierce's responsibilities align with DLH's focus on health IT strategy and digital transformation. The company named Jess Berrellez vice president of health IT strategy and operations in November 2025 to support those areas, including data strategies and AI adoption.

PR Newswire
Sep 14th, 2026
Leidos wins $875M to secure networks for 650,000 Navy and Marine Corps personnel

The US Department of the Navy has awarded Leidos $875 million for the second option year of a contract to manage critical military networks worldwide. The company will support more than 650,000 Navy and Marine Corps personnel by managing over 425,000 devices at more than 2,500 sites globally. Leidos is responsible for all aspects of user support, operations and IT transformation on the Navy Marine Corps Intranet, Outside the Continental United States Navy Enterprise Network and Marine Corps Enterprise Network. Since winning the initial contract in 2020, the company has introduced automation that delivers patches to network devices 93% faster and accelerates enterprise-wide patching by 94%. The award supports Leidos' NorthStar 2030 strategy, focusing on digital modernisation, cyber capabilities and mission software.

QUASA
Sep 11th, 2026
Creoir gets seed funding - but fielded voice AI is still the milestone.

Creoir gets seed funding - but fielded voice AI is still the milestone. September 11, 2026 at 10:41 AM | Updated: September 11, 2026 at 12:51 PM | Author: QUASA Editorial Team | 4 min read | 2 Finnish defence-technology company Creoir secured a seed investment from Swedish venture fund Gungnir Capital through its September 3, 2026 funding notice, issued from Stockholm and Oulu. The capital is intended to commercialise EdgeVUI and Operator Assistant for European defence customers, but the notice gives no investment amount, valuation or other financial terms. The amount committed by Gungnir therefore remains unknown. EU-Startups' September 4 coverage identifies Gungnir as the lead investor in an ongoing seed round targeting €2 million; that target is not evidence of a completed €2 million raise. The investment supports two offline voice products. EdgeVUI is designed to let defence operators control complex systems through hands-free speech in their native language. Operator Assistant is an AI-powered knowledge-base product for retrieving mission-critical information by voice. The disclosed use cases include command-and-control and combat-management systems, vehicles, sonar equipment and radios. Both products run on the device without a cloud connection and are intended for noisy, security-sensitive settings. The proposition is consequently narrower than a general-purpose conversational assistant: Creoir is developing an interface for systems in which connectivity may be unavailable or unsuitable and operators may need to keep their hands on controls and their attention on operational displays. The financing is directed at commercial delivery, rather than presented as proof that wide operational deployment has already been achieved. The stated transition runs from validated pilot projects toward fielded capability, making fielding the next commercial and technical milestone even though the investor uses broader deployment language elsewhere. Projects, pilots and fielded systems remain distinct. The available disclosures establish customer activity but do not provide enough detail to classify every engagement by procurement stage or operational status. Separating the claims produces a more precise evidence map: * Named customer projects: Public materials identify ongoing work involving Saab, Leidos and ThyssenKrupp Marine Systems, or TKMS. They do not identify the programmes, end users, contract values, delivery volumes or acceptance milestones. * Validated pilots: The disclosed transition begins with validated pilot projects, but no public document maps individual pilots to the three named companies. Test methods, acceptance criteria, performance results and completion dates are also absent. * Live integrations and deployment claims: Gungnir's Creoir portfolio entry calls EdgeVUI and Operator Assistant integrated into live projects with Saab, Leidos and TKMS and also labels the technology deployed in naval and mission-critical environments. It does not classify each engagement as a pilot, development integration, production contract or accepted operational system. * Fielded systems: No receiving unit, named platform, installation count or operational-acceptance milestone is disclosed. The public record therefore cannot establish the scope, permanence or repeatability of fielded capability. These descriptions are not necessarily contradictory. Software can be deployed within a bounded trial or customer integration while its supplier continues working toward repeatable fielding across programmes. The unresolved question is whether any disclosed installation has passed from technical validation into an accepted, sustained operational role. The cheque size and final round total are still open. Gungnir invests in early-stage European defence, security and resilience companies, covering stages from pre-seed through Series A. In Creoir's case, the available financing materials identify Gungnir as the new backer and lead investor but do not name additional participants or describe the ownership acquired. Dealroom's September 4 report records a Gungnir-led seed round and explicitly notes that Creoir did not disclose the amount. It does not establish how much has closed, whether other investors have participated or whether the continuing round has reached the separately published €2 million target. The defensible financial conclusion is limited: Creoir received seed capital from Gungnir, while Gungnir's cheque size, the round's closed total and the company's valuation remain undisclosed. Treating the fundraising target as money already secured would overstate the available evidence. Fielding would materially change the evidence. The products address a concrete operational constraint. Hands-free interaction could reduce the need to shift attention between controls and displays, while local processing removes dependence on remote cloud infrastructure for the core voice workflow. Those characteristics help explain the investment case, but product design, customer projects and investor backing do not independently demonstrate operational adoption at scale. A named programme, production order, customer-acceptance milestone or deployment tied to a defined platform and scope would clarify the commercial stage. Published measurements for the complete system under specified noise, hardware and operating conditions would provide stronger evidence of technical maturity. None accompanied the financing disclosure. The established facts are therefore narrower than the broadest deployment language: Gungnir has made a seed investment to support commercialisation of Creoir's offline EdgeVUI and Operator Assistant products, and customer work involving three named defence companies is public. The amount invested, the final round size and the precise operational maturity of those projects are still unknown, leaving repeatable fielded capability as the milestone to watch.

Concept Plus
Sep 10th, 2026
Concept Plus welcomes Raymond Okeke as Senior Vice President, Health & Civil Sector.

Concept Plus welcomes Raymond Okeke as Senior Vice President, Health & Civil Sector. 09/10/2026 - Fairfax, VA. Concept Plus, LLC, an information technology solutions and services company supporting U.S. Government customers, is pleased to announce that Raymond Okeke has joined the company as Senior Vice President, Health & Civil Sector. Raymond brings 20 years of experience in government contracting, federal health IT, and critical infrastructure, with a proven track record of leading large-scale programs, driving growth, and delivering mission-critical solutions for federal customers. Raymond joins Concept Plus from Leidos, where he most recently served as Senior Vice President of Military Health Systems. In this role, he oversaw a Department of War Health IT portfolio exceeding $500 million annually, with responsibility for execution, growth, strategy, customer engagement, and people leadership. During his tenure at Leidos, Raymond led the $4.3 billion MHS GENESIS deployment on the Defense Healthcare Management System Modernization program through completion, delivering the program on time and within budget across 3,200 locations worldwide before transitioning it to operations and sustainment. Raymond previously held leadership roles within Leidos' energy business, where he helped grow the company's energy delivery portfolio into one of the largest in the country. Under his leadership, the organization scaled from approximately 300 to 1,500 employees. Raymond holds a Master of Science and Bachelor of Science in Electrical Engineering from Michigan Technological University. He also serves on the Executive Board of the American Red Cross, Greater Washington DC Chapter. As Senior Vice President, Health & Civil Sector, Raymond will lead growth and delivery across Concept Plus' federal health and civilian portfolio, with a focus on expanding the company's footprint within existing accounts and into new agencies. Raymond's appointment reflects Concept Plus' continued investment in strengthening its leadership team and expanding its ability to deliver innovative, mission-focused solutions across the federal health and civilian markets. About Concept Plus: Concept Plus is an information technology solutions and services company offering deep technical expertise, with a focus on Oracle, cloud computing, data analytics, artificial intelligence, and developing and modernizing mission-critical enterprise systems. Concept Plus supports civilian, defense, and health clients by solving challenging business and information technology problems. Concept Plus, LLC develop, implement, and operate mission-critical and business management solutions that leverage its deep technology expertise and industry best practices. Visit https://conceptplus.com for more information.

PR Newswire
Sep 8th, 2026
Leidos autonomous vessels complete 200,000 nautical miles across naval operations

Leidos autonomous vessels Sea Hunter and Seahawk participated in significant naval operations, demonstrating advanced maritime autonomy capabilities. Sea Hunter operated at RIMPAC 2026 as the exercise's only Medium Unmanned Surface Vessel, autonomously travelling over 2,000 nautical miles from Hawaii to California. Seahawk became the first MUSV to deploy operationally with a carrier strike group, joining the USS Theodore Roosevelt. Both vessels use Leidos Autonomous Vessel Architecture (LAVA), featuring autonomous navigation, collision avoidance, and GPS-denied operation. Across its autonomous maritime portfolio, Leidos has accumulated over 200,000 nautical miles and 14,000 hours of safe autonomous operation. The company previously demonstrated offensive capabilities in 2021 when its MUSV Ranger test-fired an SM-6 Standard Missile. Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended 2 January 2026.

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