Computer Systems Architect 3

PROLIM Corporation; San Diego (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

PROLIM Corporation is seeking an experienced Computer Systems Architect 3 to support Northrop Grumman Mission Systems on mission-critical defence programs and enterprise digital transformation initiatives.

The role requires strong Linux systems administration, cybersecurity hardening, infrastructure architecture, and automation to support complex classified and unclassified environments, with leadership responsibilities and mentoring for junior engineers.

Qualifications

• Experience as Computer Systems Architect in defence or mission-critical environments.
• Strong Linux systems administration and security hardening experience.
• Familiarity with automation and DevSecOps practices.
• Ability to design complex architectures and lead junior engineers.

Responsibilities

• Design and maintain complex system architectures and development environments.
• Administer and troubleshoot Red Hat Linux systems.
• Implement system hardening and STIG security requirements.
• Support LDAP/RHDS, Splunk, and Linux DNS/BIND.
• Develop automation scripts using Bash/Shell, Python, and Ansible.
• Support VMware virtualization, networking, and system integration.
• Collaborate with engineering teams on Dev Sec Ops, infrastructure automation, and system sustainment.
• Provide technical leadership, mentor junior engineers, and improve system reliability and security.

Skills

Red Hat Linux administration

LDAP / RHDS

System hardening & STIG

Splunk monitoring

Bash/Shell

Python

Ansible

Basic Windows OS

Effective communication

Tools

VMware

KVM

Hyper-V

Docker

Kubernetes

Red Hat OpenShift

Job description

Security Clearance: Interim Secret required at start; full Secret upon completion of the clearance process

About the Opportunity

PROLIM is seeking an experienced Computer Systems Architect 3 to support Northrop Grumman Mission Systems on mission-critical defence programs and enterprise digital transformation initiatives.

We are looking for a technically strong professional with expertise in Linux systems administration, cybersecurity hardening, infrastructure architecture, and automation to support complex classified and unclassified computing environments.

Key Responsibilities

• Design and maintain complex system architectures and development environments.
• Administer and troubleshoot Red Hat Linux systems.
• Implement system hardening and STIG security requirements.
• Support LDAP/RHDS, Splunk, and Linux DNS/BIND.
• Develop automation scripts using Bash/Shell, Python, and Ansible.
• Support VMware virtualization, networking, and system integration.
• Collaborate with engineering teams on Dev Sec Ops, infrastructure automation, and system sustainment.
• Provide technical leadership, mentor junior engineers, and improve system reliability and security.

Required Technical Skills

• Red Hat Linux administration and advanced troubleshooting
• LDAP / Red Hat Directory Server (RHDS)
• System hardening and STIG implementation
• Splunk monitoring and log analysis
• Bash/Shell, Python, and Ansible
• Basic Windows OS knowledge
• Effective communication and independent critical thinking skills

Preferred Skills

• VMware, KVM, Hyper-V, and other virtualization platforms
• Docker, Kubernetes, and Red Hat OpenShift
• Linux/Unix system design and sustainment
• Networking, iSCSI, backup, and recovery solutions
• Technical leadership and mentoring experience