Demo

Lead Civil Engineer - TS/SCI Polygraph Required

Leidos Inc
Reston, VA Full Time
POSTED ON 8/18/2026
AVAILABLE BEFORE 10/17/2026

Description

Leidos has an exciting opportunity for an experienced Civil Engineer to support highly specialized mission requirements in Reston, Virginia. In this role, you will assess, reverse engineer, and characterize the physical, architectural, and functional attributes of complex above-ground and subterranean facilities located in denied-access environments.

The successful candidate will leverage deep engineering expertise to reconstruct facility layouts, operational workflows, and supporting infrastructure associated with chemical, biological, radiological, and nuclear (CBRN) industrial processes. You will evaluate facility vulnerabilities, identify potential threat vectors, and provide critical insights that support national security objectives.

This position requires a creative yet disciplined problem solver who can develop sound engineering assessments when complete information is not available. Success in this role demands exceptional attention to detail, intellectual curiosity, and a commitment to analytical rigor. You will work as part of a multidisciplinary team of government and contractor professionals in a fast-paced, mission-focused environment within a government facility.

Primary ResponsibilitiesReverse Engineering & Characterization

Analyze and characterize complex industrial processes, equipment layouts, and facility designs to determine functional attributes, operational capacity, and mission relevance.

Subterranean & Hardened Facility Analysis

Evaluate the structural design, geological overburden, and survivability of underground facilities (UGFs) and deeply buried hardened structures.

3D Modeling & Simulation

Utilize advanced CAD and engineering simulation tools to develop accurate 3D models of facilities, underground structures, floor plans, utility networks, and supporting infrastructure.

Vulnerability & Resilience Assessments

Conduct detailed structural and functional analyses to identify systemic weaknesses, single points of failure, and the operational resilience of critical infrastructure against a variety of threat vectors.

Workflow & Infrastructure Analysis

Assess facility support systems and operational workflows, including specialized HVAC systems, power distribution networks, and structural integrity considerations.

Technical Reporting & Briefing

Produce comprehensive engineering assessments and technical products in accordance with Intelligence Community standards. Present findings and recommendations to senior government and Department of Defense stakeholders.

Required Qualifications
  • Candidates for consideration must possess an in-scope and active TS/SCI Polygraph clearance and the ability/willingness to maintain this clearance while holding this position. U.S. Citizenship is required.

  • Requires an in-depth understanding of engineering principles, theories, concepts, and their practical application across a range of programs.

  • Bachelor's degree and 8 years of relevant experience, OR a Master's degree and 6 years of relevant experience.

  • Relevant experience includes facility analysis, infrastructure vulnerability assessments, and structural engineering within commercial, Department of Defense, or Intelligence Community environments.

  • Industrial & Facility Focus: Proven experience analyzing chemical, nuclear, or biological industrial processes and their associated facility footprints, including both above-ground facilities and subterranean environments.

  • MEP Systems Knowledge: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment, filtration, and backup power systems.

Preferred Qualifications
  • Weapons Effects & Survivability: Experience or training in blast mitigation, weapons effects, or structural hardening principles.

  • Geotechnical Engineering: Knowledge of rock mechanics, tunneling engineering, or geomechanics as applied to deeply buried underground facilities (UGFs).

  • BIM Expertise: Experience with Autodesk Revit or other Building Information Modeling (BIM) platforms for multidisciplinary coordination, MEP integration, and advanced facility visualization.

  • Advanced Simulation: Experience utilizing BIM data to support engineering simulations, blast effects analysis, or vulnerability assessment workflows.

  • Infrastructure Modeling: Experience with VENTSIM, ETAP, or similar infrastructure modeling and simulation tools.

  • All-Source Information Evaluation: Demonstrated ability to research, assess, and synthesize diverse intelligence and technical sources, including classified intelligence, open-source information, and grey literature (e.g., foreign technical journals, patents, and equipment catalogs) to support facility and infrastructure characterization.

  • Professional Engineer (PE) certification.

  • Military or defense-related experience.

#ASBA
#Snakehead

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:August 14, 2026






For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.


Pay Range:Pay Range $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

 

Salary : $92,300 - $166,850

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Lead Civil Engineer - TS/SCI Polygraph Required?

Sign up to receive alerts about other jobs on the Lead Civil Engineer - TS/SCI Polygraph Required career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$123,335 - $160,476
Income Estimation: 
$151,655 - $195,046
Income Estimation: 
$103,075 - $132,729
Income Estimation: 
$123,335 - $160,476
Income Estimation: 
$110,906 - $139,379
Income Estimation: 
$117,606 - $144,658
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Leidos Inc

  • Leidos Inc Omaha, NE
  • Description Targeting Analyst / Instructor Location: Offutt AFB, NE Clearance: TS/SCI required Organization: 363rd ISRW / 20 IS Leidos and the 363rd Intell... more
  • 1 Day Ago

  • Leidos Inc Oklahoma, OK
  • The Leidos digital modernization NISC IV team is looking to hire a skilled Hardware Engineer to support engineering, integration, and sustainment of critic... more
  • 1 Day Ago

  • Leidos Inc Gaithersburg, MD
  • Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are ded... more
  • 1 Day Ago

  • Leidos Inc Bethesda, MD
  • Join Our Innovative Team at Leidos! At Leidos, you'll be part of a team that creates innovative solutions for the Navy, directly contributing to the readin... more
  • 1 Day Ago


Not the job you're looking for? Here are some other Lead Civil Engineer - TS/SCI Polygraph Required jobs in the Reston, VA area that may be a better fit.

  • Leidos Inc Reston, VA
  • Description Leidos is seeking an accomplished Principal Civil Engineer to support high-priority national security missions in Reston, Virginia. This role f... more
  • 16 Days Ago

  • Leidos Inc Reston, VA
  • Description Leidos is seeking an experienced Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on t... more
  • 16 Days Ago

AI Assistant is available now!

Feel free to start your new journey!