Senior Product Systems Engineer - SIGINT

About Leidos

Leidos is a FORTUNE 500® company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. Guided by our Mission, Vision, and Values, Leidos empowers its teams, contributes to its communities, and operates sustainably—always with a commitment to doing the right thing for our customers, our people, and our community.

The Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support Intelligence Community customers as they address evolving national security challenges.

About the Opportunity

Leidos is seeking a Senior Product Systems Engineer – SIGINT to provide lifecycle engineering and operational sustainment for mission-critical SIGINT applications operating in Linux and Windows environments. As part of a multidisciplinary engineering team, you will help ensure mission software remains reliable, performant, secure, and operationally ready by combining systems engineering, product sustainment, automation, testing, and operational support.

Why This Role Matters

Mission applications only deliver value when they remain healthy, available, and continuously improving throughout their operational lifecycle. As a Senior Product Systems Engineer - SIGINT, you will own the technical health of critical SIGINT software capabilities by supporting deployment, monitoring, testing, automation, troubleshooting, and lifecycle sustainment activities that directly enable Intelligence Community missions.

What You'll Do

Product Engineering & Sustainment

Provide lifecycle engineering support for mission-critical SIGINT applications operating in Linux and Windows environments.

Support systems engineering activities that improve product functionality, reliability, and operational effectiveness.

Develop Concepts of Operations (CONOPS), technical plans, support plans, and engineering documentation.

Coordinate integration of product improvements into operational baselines.

Systems Integration & Operations

Monitor product dataflow, identify system and component issues, and optimize operational performance.

Troubleshoot hardware, software, and subsystem failures while documenting defects and recommended resolutions.

Perform regression testing, Operational Acceptance Testing, and Operational Evaluations supporting product releases.

Support software integration, deployment, and operational readiness activities.

Automation & Monitoring

Develop scripts, tools, and automation that improve system monitoring, operational health, and deployment efficiency.

Create monitoring mechanisms that provide system health, mission status, and operational metrics.

Develop automation supporting system administration and operational sustainment.

Optimize system performance through continuous monitoring and engineering improvements.

Product Support & Training

Develop Standard Operating Procedures (SOPs), support documentation, and training materials.

Provide technical training supporting operational users and sustainment personnel.

Support periodic system backups and document recovery procedures.

Collaborate across engineering and operational organizations to integrate tools, scripts, and monitoring capabilities into the product baseline.

Required Qualifications

Clearance

TS/SCI with Polygraph required, at the time of Application, to be considered for the position.

Experience

BA/BS degree. Additional years of experience may be considered in lieu of degree.

Minimum of six (6) years of Systems Engineering experience supporting programs or contracts of similar scope, type, and complexity.

Minimum of ten (10) years of Linux systems administration or operations experience.

Minimum of five (5) years of experience implementing and supporting SIGINT technologies.

Minimum of five (5) years of experience integrating, testing, and deploying software.

Minimum of three (3) years of scripting experience using Bash, Perl, or similar scripting languages.

Minimum of two (2) years of experience using JIRA or similar project management and issue-tracking systems.

Preferred Qualifications

Experience supporting Intelligence Community SIGINT mission applications.

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 18, 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 $107,900.00 - $195,050.00

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.