ICS/SCADA & Critical Infrastructure Engineer

Leidos has an opening for a ICS/SCADA & Critical Infrastructure Engineer in Reston, Virginia. The primary focus of this group is understanding commercial and heavy industrial facilities, as well as the interoperability of systems managed by industrial control systems (ICS) and building management systems (BMS). Candidates must bring a creative yet practical approach to identifying and solving challenges involving these interconnected systems in customer environments. Successful candidates will demonstrate exceptional attention to detail, strong analytical skills, and a commitment to producing thorough, high-quality work. The selected candidate will work as part of an interdisciplinary team of government and contractor personnel conducting strategic and critical facility analysis with a focus on industrial control systems. Work will be performed in a fast-paced, high-energy environment within a government SCIF. Roles and Responsibilities Use tradecraft exploitation tools, intelligence sources, and engineering expertise to characterize selected facilities. Provide engineering guidance and technical judgment throughout the characterization process to produce accurate intelligence assessments. Develop formal products in accordance with customer requirements. Support the development of innovative approaches to solve complex engineering challenges. Brief senior officials on capability trends, findings, and analysis. Required Qualifications U.S. citizenship is required. Candidate must possess an active TS/SCI clearance or a Top Secret clearance with a current SSBI and be eligible to obtain a TS/SCI with polygraph. Demonstrated ability to apply principles, theories, and concepts within a technical discipline, with a broad understanding of related specialty areas. Bachelor's degree and 4+ years of relevant experience, or a Master's degree and 2+ years of relevant experience. Degree in a STEM field (e.g., electrical engineering, mechanical engineering, or related discipline). 2+ years 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 engineering and either electrical or mechanical engineering. Experience with complex industrial process control systems. Excellent written and verbal communication skills, including the ability to brief and interact effectively with senior officials. Preferred Qualifications Professional Engineer (PE) license or 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 systems. Variable Frequency Drives (VFDs). Building Management Systems (BMS), Access Control Systems (ACS), video management systems, industrial HVAC systems, and central utility plants. Industrial processes within water/wastewater, nuclear, data center, cogeneration, and combined cooling, heating, and power (CCHP) environments. Complex cooling systems, including cooling towers, chillers, UPS systems, and power monitoring solutions. Cybersecurity and/or penetration testing experience. IT and networking certifications (e.g., CISSP, SSCP, CEH). Familiarity with packet capture and network analysis tools such as Wireshark, Nmap, NetworkMiner, GrassMarlin, SCEPTRE, HELICS, and intrusion detection systems (IDS). 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: May 31, 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 $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and 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. 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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit 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 here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io. Commitment and Diversity 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.