Linux Systems Engineer

Leidos seeks a Senior Linux Engineer to design, secure, and optimize mission-critical infrastructures for government and commercial clients. In this role, you will lead architecture and administration of enterprise Linux environments, implement automation for provisioning and configuration, and ensure high availability and compliance with stringent security standards. You will collaborate with cross-functional teams, mentor junior engineers, and support incident response, contributing to innovative, real-world impact projects within a mission-driven, highly collaborative culture., * Design, implement, and maintain secure, scalable Linux server infrastructures

• Administer Red Hat/Enterprise Linux systems, including patching and performance tuning
• Automate provisioning, configuration, and deployments using scripting and configuration management tools
• Monitor system health, troubleshoot complex issues, and ensure high availability
• Harden systems to meet security and compliance requirements for government clients
• Collaborate with security, network, and application teams on solution design and delivery
• Support cloud and virtualization platforms integrating Linux workloads
• Create and maintain technical documentation and standard operating procedures
• Mentor junior engineers and contribute to best practices and standards
• Participate in on-call rotation and incident response as needed

• Linux system administration
• Red Hat Enterprise Linux
• Shell scripting (Bash)
• Configuration management (Ansible/Puppet/Chef)
• Automation and CI/CDSystem performance tuning and monitoring
• Security hardening and compliance (STIGs, DISA, CIS)
• Virtualization (VMware/KVM)
• Cloud platforms (AWS/Azure)
• Networking fundamentals (TCP/IP, DNS, routing)