Sr. Linux Systems Administrator (DSO),

Raytheon Technologies - Sterling, VA

Full-time - Mid Level

Sterling, VA

10,001+ employees

Computer and Electronic Product Manufacturing

About the position

The Sr. Linux Systems Administrator at Nightwing plays a crucial role in supporting the design, development, and deployment of advanced cybersecurity capabilities for a U.S. Government customer. This position involves providing ongoing systems administration, technical support, and troubleshooting services, while also collaborating with application and product teams to implement optimal CI/CD pipelines. The role requires a strong background in Linux system administration, particularly with Red Hat Enterprise Linux, and the ability to enhance DevOps tool sets through automation and cloud services integration.

Responsibilities

• Provides ongoing systems administration, technical support, upgrades, and troubleshooting services.
• Provide full coverage for Linux or Unix system administration functions to support the DevOps tool sets.
• Install, configure, support, and maintain middleware (e.g., JBoss, Apache, Tomcat, Nginx) to support the DevOps tool sets.
• Works closely with application and product teams in understanding their specific automation requirements and implement with them an optimal CI/CD pipeline.
• Write unit tests and integration tests to validate infrastructure code.
• Identify engineering defects in the existing code base and constantly improve the code quality.
• Maintain configuration and support documentation.
• Manage assigned project components to deliver services in accordance with established objectives.
• Develop, through programming and scripting, automation to further expand and refine the DevOps tool sets.
• Work closely with the software development teams in defining their DevOps CI/CD pipeline and processes and implement and configure the DevOps tools with them.
• Incorporate AWS native cloud services and features to enhance the performance and resilience of the DevOps tools and infrastructure.
• Contribute and collaborate to design, document, and publish DevOps and cloud standards, principles, guidelines and best practices.
• Seek opportunities to increase the business value of the DevOps tool chain through research and investigation, application team input, automation options, POCs, etc.

Requirements

• Must be a US Citizen
• Must have an active Secret clearance and be able to obtain a TS/SCI clearance
• Must be able to obtain DHS Suitability
• 6+ years of system administration in Linux, ideally Red Hat Enterprise Linux version 8 and 9 (RHEL8 / RHEL9) with the ability to engineer, install, administer and maintain complex system architectures
• Experience with Linux OS installation, security hardening, and maintenance
• Experience with administration and management of Linux servers to include installation, configuration, optimization, backup & recovery
• Experience with Linux performance tuning & troubleshooting, identifying and resolving contention in CPU, memory, networking, disk I/O, etc
• Experience with products such as Red Hat Satellite Server, Ansible, and IDM.

Nice-to-haves

• Experience with Infrastructure as Code (IaC) using Ansible or other comparable products
• Experience working in an agile development environment
• Experience with software development using java, RESTful services
• Comfortable with multilevel security systems, SELinux, and/or Cross Domain Solutions
• Experience with data orchestration software such as Apache NiFi or StreamSets
• Experience with distributed compute environments such as Hadoop
• Experience with Amazon Web Services (AWS) platform capabilities, including good understanding of the Amazon Web Services (AWS) Well-Architected Framework, AWS certification
• Experience working in AWS via the CLI and management console. Knowledge and experience configuring Virtual Private Clouds (VPCs)
• Experience working in DevOps and/or DevSecOps environments
• Familiarity with the following technologies in a cloud environment: ELK Stack (ElasticSearch, Logstash, Kibana), Ansible, Nessus, Zscaler, ClamAV, AIDE, Splunk, DNS, NAT, git, Docker, Kubernetes, OpenShift, Jenkins

Benefits

• Parental (including paternal) leave
• Flexible work schedules
• Achievement awards
• Educational assistance
• Child/adult backup care
• Medical insurance
• Dental insurance
• Vision insurance
• Life insurance
• Short-term disability
• Long-term disability
• 401(k) match
• Flexible spending accounts
• Employee assistance program
• Paid time off
• Holidays