Senior Geotechnical Engineer - TS/SCI Poly Required

Leidos Inc; Reston (VA); On-site; USD 116,000 - 210,000; Full time

Job summary

Leidos is seeking a Senior Geotechnical Engineer to join the Analysis Solutions Group in Reston, Virginia. This role focuses on advanced geotechnical analysis of underground and complex infrastructure and serving as a technical advisor across multidisciplinary teams.

You will lead field investigations, apply geotechnical methods, and communicate findings to government stakeholders while supporting technology development in geotechnical sensing and modeling.

Qualifications

• Bachelor's degree in Engineering Geology, Geology, Mining Engineering, Geotechnical Engineering or related discipline.
• 12+ years of relevant experience, or master's with 10+ years of relevant experience.
• Strong background in geomechanics, geotechnical engineering, field geophysics, computer modeling and simulation, tunnel and slope stability analysis, and rock mass characterization.
• Advanced proficiency with geotechnical software PLAXIS, SLOPE/W, Slide, LPILE, gINT.
• Experience with GIS technologies (ArcGIS Pro, ArcGIS Enterprise) and MATLAB.
• Experience conducting geotechnical investigations, field data collection, and subsurface engineering analysis.

Responsibilities

• Serve as a senior technical expert in geotechnical engineering, engineering geology, and subsurface characterization.
• Conduct advanced geotechnical assessments using diverse data sources to characterize sites and facilities.
• Analyze soil, rock, and geologic conditions for underground and hardened infrastructure assessments.
• Utilize geospatial technologies to evaluate site geology and geotechnical conditions.
• Develop technical assessments, reports, and briefings communicating findings and risks to customers.
• Support development of innovative technologies and methodologies for geotechnical conditions in challenging environments.
• Plan and execute field investigations, surveys, and data collection in the US and internationally.
• Brief senior government officials and technical stakeholders on trends and findings.

Skills

Geomechanics

Geotechnical engineering

Field geophysics

Computer modeling and simulation

Tunnel and slope stability analysis

Rock mass characterization

Education

Bachelor's degree in Engineering Geology, Geology, Mining Engineering, Geotechnical Engineering

Tools

PLAXIS

SLOPE/W (GeoStudio)

Slide

LPILE

gINT

ArcGIS Pro

ArcGIS Enterprise

MATLAB

Job description

Description

Leidos is seeking a Senior Geotechnical Engineer to join our Analysis Solutions Group in Reston, Virginia. This highly specialized role supports critical national security missions through advanced geologic and geotechnical analysis of underground, hardened, and complex infrastructure facilities.

As a senior member of a multidisciplinary team, you will apply your expertise in geology, geotechnical engineering, geomechanics, and subsurface characterization to help reverse engineer and assess facilities in some of the world's most challenging environments. You will support the development of innovative methodologies, analytical processes, and emerging technologies used to characterize, model, and assess above- and below-ground structures and their surrounding geology.

This position offers the opportunity to solve complex technical problems, conduct cutting-edge analysis, contribute to technology development efforts, and directly support high-priority government missions. The successful candidate will serve as a trusted technical advisor and subject matter expert, working in a fast-paced, mission-focused environment alongside leading scientists, engineers, analysts, and government personnel.

What You’ll Do

• Serve as a senior technical expert in geotechnical engineering, engineering geology, and subsurface characterization.
• Conduct advanced geotechnical assessments using open-source information, commercial and classified imagery, intelligence reporting, and geospatial data to characterize geological and engineering properties of sites and facilities.
• Analyze soil, rock, and geologic conditions to support the assessment of underground and hardened infrastructure.
• Utilize geospatial technologies, including ArcGIS Pro and ArcGIS Enterprise, along with vector and raster datasets, to evaluate and document site geology and geotechnical conditions.
• Develop technical assessments, reports, and briefings that clearly communicate findings, risks, and conclusions to customers and stakeholders.
• Provide scientific, technical, and systems engineering support for the development of innovative technologies, sensors, and methodologies used to identify, characterize, and assess geotechnical conditions in denied or difficult-to-access environments.
• Plan and execute field investigations, surveys, and data collection efforts within the United States and internationally.
• Apply geological expertise to projects involving borehole investigations, soil characterization, fault analysis, rock mass characterization, and subsurface engineering assessments.
• Conduct field research and produce detailed technical documentation to support mission requirements.
• Lead the development of new technical approaches, analytical methods, and operational solutions that advance mission capabilities.
• Brief senior government officials, technical leaders, and mission stakeholders on emerging trends, analytical findings, and technical assessments.

Required Qualifications

• Clearance Required: Candidates for consideration MUST possess an active, current Top Secret/SCI clearance WITH polygraph, and the ability and willingness to maintain this clearance while holding this position.

• Bachelor's degree in Engineering Geology, Geology, Mining Engineering, Geotechnical Engineering, or a related discipline.
• 12+ years of relevant experience, or master's degree with 10+ years of relevant experience.
• Strong background in:
  • Geomechanics
  • Geotechnical engineering
  • Field geophysics
  • Computer modeling and simulation
  • Tunnel and slope stability analysis
  • Rock mass characterization

• Advanced proficiency with geotechnical engineering software, including:
  • PLAXIS
  • SLOPE/W (GeoStudio)
  • Slide
  • LPILE
  • gINT

• Experience with GIS technologies, including ArcGIS Pro and ArcGIS Enterprise, and familiarity with MATLAB.
• Experience conducting geotechnical investigations, field data collection, and technical research.
• Working knowledge of drilling operations, core logging, mining operations, tunnel design and construction, trenchless technologies, and subsurface engineering analysis.
• Exceptional written and verbal communication skills, including the ability to brief senior government officials and technical audiences.
• Demonstrated ability to apply advanced scientific and engineering principles across complex technical programs and mission areas.

Preferred Qualifications

• Professional Geologist (PG) or Professional Engineer (PE) license.
• Military, defense, or intelligence community experience.
• Experience applying remote sensing technologies to geological or geotechnical analysis.
• Knowledge of weapons effects and the response of geologic materials to blast, shock, and other dynamic loading conditions.
• Experience conducting and processing geologic and geophysical investigations, including:
  • Seismic surveys
  • Ground Penetrating Radar (GPR)
  • Other subsurface sensing technologies

Why Leidos?

At Leidos, you'll work on some of the nation's most challenging and impactful technical problems. This role offers the opportunity to combine advanced geotechnical expertise, innovative technology development, and intelligence-driven analysis to support missions of strategic importance. You'll collaborate with leading experts across multiple disciplines while helping shape solutions to some of the most complex subsurface and infrastructure challenges facing the national security community.

If you're a technical leader with a passion for geotechnical analysis, underground structures, and mission-focused innovation, we invite you to join our team and make a lasting impact.

#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, prove, 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

Pay Range

Pay Range $116,350.00 - $210,325.00

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 [e-mail].

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.