We are seeking a Technical Architect with deep expertise in Linux systems, cloud platforms, and enterprise application environments to support Command-and-Control (C2) systems operating across both classified and cloud-based networks. This role will be responsible for system architecture, platform modernization, and operational sustainment of complex environments built on Liferay, Oracle/PostgreSQL, and Linux distributions. The successful candidate will play a key role in system migrations, performance optimization, and ensuring high availability in secure and mission-critical environments. 

This is a proactive recruitment initiative, with potential start dates in the coming weeks or months, contingent on contract award.

Key Responsibilities 

• Architecture & System Design 
  • Develop and maintain end-to-end system architecture documentation for CV/UCV/MDTS environments  
  • Define architecture across components including databases, application frameworks, middleware, and infrastructure  
  • Produce and maintain technical diagrams, system documentation, and Concept of Support artifacts  
• System Administration & Operations 
  • Install, configure, optimize, and administer Linux-based systems (RHEL, Alma Linux, Ubuntu, AIX, UNIX)  
  • Maintain system operations through daily verification, monitoring, and scheduled maintenance  
  • Troubleshoot and resolve complex system and performance issues  
• Migration & Modernization 
  • Plan and execute system migrations, including:  
  • CV systems to updated Liferay, RHEL/Alma Linux, and PostgreSQL in classified environments  
  • UCV systems to updated platforms in Azure or AWS cloud environments  
  • Ensure minimal disruption and secure transition during upgrades and migrations  
• Automation & Scripting 
  • Develop and maintain Bash, PowerShell, and Python scripts to automate administrative and operational tasks  
  • Improve operational efficiency through scripting and automation  
• Database & Middleware Management 
  • Support and optimize Oracle and PostgreSQL databases  
  • Administer and support Liferay (Portal/DXP), Apache HTTPD, and Tomcat environments  
• Performance, Backup & Recovery 
  • Analyze system performance and implement corrective and optimization measures  
  • Design and implement backup strategies and disaster recovery procedures (DRP)  
  • Ensure system resilience and continuity in high-availability environments  
• Governance & Knowledge Transfer 
  • Support ITSM processes, including Request for Change (RFC) documentation and approvals  
  • Provide knowledge transfer and technical guidance to internal teams  
  • Develop and maintain Standard Operating Procedures (SOPs)  

Technical Environment 

• Operating Systems: UNIX, AIX, RHEL, Alma Linux, Ubuntu  
• Cloud & Identity: Azure, AWS, Entra ID  
• Scripting: Bash, PowerShell, Python  
• Databases: Oracle, PostgreSQL  
• Middleware / Applications: Liferay (Portal, DXP), Apache HTTPD, Tomcat  
• Other: Node.js (supporting components), ITSM tools and processes

• 5+ years experience as a Technical Architect  
• College diploma or University degree in Computer Science, Engineering, IT, or related field  
• Minimum 5 years of Linux administration experience within the last 10 years  
• Experience designing and supporting complex, multi-environment systems  
• Strong experience with:  
  • Linux server installation, configuration, and maintenance  
  • System troubleshooting and performance optimization  
  • Technical documentation and architecture design  
• 5–10+ years experience administering enterprise Linux environments (RHEL, Alma, Ubuntu)  
• Experience with cloud platforms (Azure and/or AWS)  
• Experience with Bash / PowerShell scripting for automation  
• Experience supporting Oracle and PostgreSQL databases  
• Familiarity with ITSM change management (RFC processes)  
• Experience working in secure, government, or defence environments