Expert Systems Engineer with Security Clearance

R- Description This position is for a Systems Engineer for a technical development program 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. Hours can be flexible for either early arrivals, and/or late departures. Primary Responsibilities Performing regular maintenance of cloud infrastructure resources, to include patching, configuration, upgrading as needed
Ensure designs are compatible with the architecture and allocated requirements to segments
Integrate systems and services for firewall and network components
Working with the team's security engineer to address, mitigate security findings stemming from system security scans
Linux OS configuration, patching, and maintenance
Identify and suggest risk mitigation techniques
Integrate systems and services
Network engineering troubleshooting between Cloud environments and non-Cloud environments Required Qualifications Active TS/SCI with Polygraph
Requires a Bachelor of Science (BS) degree and 12+ years of relevant experience. Additional experience in lieu of degree
Strong experience with Linux (CLI)
Experience with scripting and programming languages like BASH and Python
Experience in working on teams utilizing Agile workflows and processes
Candidate will need to work in a team environment where collaboration, cooperation, synergy, and teamwork are essential Desired Qualifications Experience working with CloudFormation / Puppet / Groovy, or other configuration and automation tools
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) Original Posting: May 1, 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.