Leidos has a new and exciting opportunity for a System Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA).  Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  Join us and make a difference in National Security!  

Job Summary:

We are seeking a seasoned Systems Engineer (SE) to support advanced mission systems focused on signals intelligence, data routing, and RF exploitation. This role demands deep technical expertise across a suite of specialized platforms including DRT, NiFi, ONEROOF, DARKQUEST, and FORNSAT, with a strong foundation in RF systems engineering. The ideal candidate will thrive in a mission-driven environment and contribute to the design, integration, and sustainment of cutting-edge intelligence capabilities.

Key Responsibilities

Lead and support full lifecycle systems engineering activities—including requirements analysis, system design, integration, verification, and validation—across mission-critical platforms such as FORNSAT and ONEROOF systems.Provide cross-platform expertise in Linux and Windows environments, ensuring secure and seamless interoperability for tools including NiFi, DRT, and FORNSAT-based signal processing systemsDesign, test, and optimize RF systems, antennas, and signal paths with direct application to collection platformsApply advanced FORNSAT knowledge to enhance signal collection, geolocation, and analysis workflows, supporting national-level intelligence objectivesCollaborate with multi-disciplinary teams of software developers, analysts, and field engineers to integrate GOTS products into operational architecturesDevelop and maintain system documentation, architecture diagrams, and configuration management artifacts; support live mission operations and resolve technical issues in real time across platforms.

Qualifications:

Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required. Five (5) years of additional SE experience may be substituted for a bachelor's degree.Fourteen (14) years of experience as a System Engineer supporting Contracts and Programs of similar scope, type and complexity is required.Clearance Requirement - Active TS/SCI with polygraph

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today

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NSSPF

At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”

If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.

Original Posting:September 8, 2025

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 $126,100.00 - $227,950.00

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.