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Systems Engineer Expert

Leidos

Chantilly, VA, US$131k – $237konsite

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About this role

Leidos is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Enterprise PKI System as well as IdAM IICAM, Authentication, Authorization, Attributes and Digital Policy Management. This position is for a Systems Engineer supporting two Cloud-based applications, and their associated cloud infrastructures located on a secure network. The Systems Engineer will work with a large team of developers, software engineers, cybersecurity engineers, database administrators, and system architects. The systems engineer will be required to carry a duty phone on a rotational basis (once they have one year of experience on the team) and may need to come in to address system issues that arise. Core business hours are typically from 9 AM – 3 PM, five days a week. *** Applicants for this position are expected to have significant hands-on systems engineering experience with specifically in creating, prioritizing, analyzing, documenting, validating, and managing project requirements. *** Primary Responsibilities • Ensure designs are compatible with target architecture and consistent requirements allocated to segments • Integrate systems and services for firewall and network components • Working with the team’s security engineer to address and mitigate security findings stemming from system security scans • Linux OS configuration, patching, and maintenance • Identify and suggest risk mitigation techniques • Integrate systems and services

Required Qualifications: • Active TS/SCI with Polygraph • Bachelor of Science (BS) degree and 12+ years of demonstrable experience. Additional experience in lieu of degree • Strong, hands-on experience with Linux (CLI) • Experience with scripting and programming languages like BASH and Python • Experience in working on teams utilizing Agile workflows and processes • Hands on experience with scripting

Desired Qualifications: • Experience working with CloudFormation / Puppet / Groovy, or other configuration and automation tools • Network engineering troubleshooting between Cloud environments and non-Cloud environments • Experience working with Infrastructure as Code (IaC) solutions such as Ansible / Terraform, or other configuration and automation tools • Solid understanding of Web Application Firewall (WAF) configuration and management • Experience with networking (e.g., ports, routing tables, subnets, VPNs, firewalls, routers, etc.) to include design, integration and troubleshooting issues • Experience in working in a cloud-based environment (AWS) • Experience with the installation, configuration of AIDE and other configuration management alerting capabilities • Experience with maintaining COTS products (e.g., Oracle Enterprise Manager (OEM), Nexus, Jenkins)

FIP 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 11, 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 $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.

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