Systems Engineer Expert

Leidos is seeking a Systems Engineer for a 200+ FTE technical development program supporting the Sponsor’s Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization, Attributes and Digital Policy Management. The Systems Engineer will work with a large team of developers, software engineers and data engineers. The successful candidate will support continuity of our customer’s mission by helping to modernize and implement industry standards while ensuring secure, reliable, and uninterrupted availability of IT systems.

Primary Responsibilities  

• Build outs, testing, maintenance, and monitoring of systems
• Requirements Decomposition
• Ensure designs are compatible with the architecture and allocated requirements to segments
• Address user requirements, procedures, and problems to automate and improve existing systems and review computer system capabilities, workflow, and scheduling limitations
• Perform functional analysis, timeline analysis, cost estimation, requirements allocation, and interfaced definition studies to translate customer requirements into hardware and software specifications
• Identify system integrity issues and solutions for the full system life cycles from concept to disposal
• Integrate systems and services as well as summarize and communicate results
• Support the development, documentation, and execution of system policies Required
• Qualifications
• Support the ATO / Accreditation effort for customer systems and applications

Required Skills

• Active TS/SCI with Polygraph
• BS degree and 16 years of prior relevant experience or Masters with 10-13 years of prior relevant experience
• Experience with the Cloud / Amazon Web Services
• Experience with SQL
• Agile Methodology / Jira, Confluence; ServiceNow (ESP)
• Experience providing Linux Administration
• Must be familiar with security accreditation process (Experience with Security Tools and Processes; RMF, NIST, Accreditation Apps (Xacta; GreenLight), System Scanning, Vulnerability Scanning; Plan of Action & Milestone       (POAM) tracking
• Excellent customer support and attention to detail – Tier 3 and Tier 4 level support to team and customer base.  
• Provide Release Management for deployment readiness, coordination and activities (**will require some late-night activities; typically, once or twice a month – 5pm – 9pm)

Desired Skills

• Experience with IdAM / ICAM delivery systems, Authentication, Authorization, Attributes
• Entitlement Management and Digital Policy Management
• LDAP Experience is a plus
• Security +, CISSP
• Amazon Web Services Certificate
• Experience with BPM/BAW
• Experience with Terraform and/or Cloud Formation
• DevSecOps
• Experience with CLSE

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:

September 17, 2026

Pay Range:

Pay Range $131,300.00 - $237,350.00

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.