ICS/SCADA & Critical Infrastructure Engineer - TS/SCI Poly

Leidos Inc; Reston (VA); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos in Reston, Virginia is seeking an experienced ICS/SCADA & Critical Infrastructure Engineer to join our team. This role focuses on understanding facility systems and interoperability of ICS and BMS.

The ideal candidate will have a TS/SCI Polygraph clearance, a STEM degree, and 6–8+ years in industrial control or building management systems. You will analyze facilities, develop formal deliverables, and brief senior government officials.

Qualifications

• Active TS/SCI polygraph clearance and US citizenship.
• Bachelor's degree in a STEM field and 8+ years of relevant experience, or a Master's degree and 6+ years.
• 5+ years of experience with industrial control systems and/or complex building management systems.
• Working knowledge of mechanical, electrical, and life-safety systems.
• Excellent written and verbal communication skills, including the ability to brief senior government officials.

Responsibilities

• Characterize facilities using tradecraft and engineering expertise.
• Provide engineering insight throughout characterization to produce intelligence assessments.
• Develop formal products and deliverables meeting customer requirements.
• Support development of innovative approaches to solve complex engineering challenges.
• Brief senior officials on capability trends, findings, and analytical assessments.

Skills

ICS/SCADA

BMS

Control systems

Electrical/Mechanical engineering

US Citizenship

Polygraph clearance

Communication

Education

Bachelor's degree in STEM

Master's degree in STEM

Tools

Rockwell PLCs

HMI/SCADA programming

Allen-Bradley

FactoryTalk View

Siemens S7

DeltaV

Wonderware

Emerson Ovation

VFDs

Job description

Description

Leidos is seeking an experienced ICS/SCADA & Critical Infrastructure Engineer to join our team in Reston, Virginia. This role focuses on understanding commercial and heavy industrial facilities, as well as the interoperability of systems managed through Industrial Control Systems (ICS) and Building Management Systems (BMS).

The ideal candidate will bring a creative yet practical approach to identifying and solving complex challenges involving interconnected facility systems. Success in this role requires exceptional attention to detail, strong analytical skills, and a commitment to producing high-quality work.

As part of an interdisciplinary team of government and contractor personnel, you will conduct strategic and critical facility analysis with a focus on industrial control systems. Work is performed in a fast-paced, high-energy environment within a government SCIF facility.

Key Responsibilities

• Use tradecraft exploitation tools, intelligence sources, and engineering expertise to characterize selected facilities.
• Provide engineering insight and technical judgment throughout the characterization process to produce accurate intelligence assessments.
• Develop formal products and deliverables that meet customer requirements.
• Support the development of innovative approaches to solve complex engineering challenges.
• Brief senior officials on capability trends, findings, and analytical assessments.

Required Qualifications

• Candidates for consideration MUST possess an in-scope and active TS/SCI Polygraph clearance for consideration and the ability/willingness to maintain this clearance while holding this position. U.S. Citizenship is required.
• Bachelor's degree and 8+ years of relevant experience, or a Master's degree and 6+ years of relevant experience. A doctorate in a technical discipline may be considered.
• Bachelor's Degree in a STEM field (Electrical Engineering, Mechanical Engineering, or related discipline) and relevant professional certifications.
• 5+ years of experience with industrial control systems and/or complex building management systems.
• Working knowledge of mechanical, electrical, and life safety systems.
• Strong background in control systems and electrical or mechanical engineering.
• Experience with complex industrial process controls.
• Excellent written and verbal communication skills, including the ability to brief senior government officials.

Preferred Qualifications

• Professional Engineer (PE) certification.
• Military or defense-related experience.
• Experience with:
  • Rockwell PLCs (or comparable platforms), HMI, and SCADA programming.
  • Allen-Bradley, FactoryTalk View, GE Fanuc, Modicon, Schneider Electric, Siemens S7, DeltaV, Wonderware, and Emerson Ovation.
  • Variable Frequency Drives (VFDs).
  • Building Management Systems (BMS), Access Control Systems (ACS), Video Management Systems, industrial HVAC, and central utility plant operations.
  • Industrial processes in water/wastewater treatment, nuclear facilities, data centers, cogeneration plants, and combined cooling, heating, and power (CCHP) environments.
  • Complex cooling system design, including cooling towers, chillers, UPS systems, and power monitoring.
• Cybersecurity and/or penetration testing experience.
• IT and networking certifications such as CISSP, SSCP, CEH, or equivalent.
• Familiarity with packet capture and network analysis tools, including Wireshark, NetworkMiner, GrassMarlin, SCEPTRE, HELICS, and intrusion detection systems (IDS).

• #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 13, 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: $107,900.00 - $195,050.00

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.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

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.