Senior Application Systems Engineer (EL1 Equivalent)

About the Role

Services Australia is seeking an experienced Senior Application Systems Engineer to support administer and enhance a range of commercial-off-the-shelf (COTS) and bespoke ICT solutions. The role supports businesscritical digital services and applications built primarily on the technology stack operating within a complex highly regulated government environment.

The successful candidate will play a key role in ensuring the stability security availability and performance of applications across web desktop web services and batch processing platforms.

Key Responsibilities

The Senior Application Systems Engineer will be responsible for some or all of the following duties:

Application Support & Administration

• Provide ongoing technical support and administration for corporate web and desktop applications
  
• Support .NETbased applications including IIS-hosted services Windows services web services/APIs and scheduled batch jobs
  
• Maintain and administer application environments across development test and production
  

Incident & Problem Management

• Diagnose and resolve complex system and application issues
  
• Participate in incident response investigation and root cause analysis
  
• Contribute to the resolution of problems to improve system stability and reliability
  

Patching Maintenance & Enhancements

• Plan test and execute application and infrastructure patching activities
  
• Ensure systems comply with security risk and regulatory requirements
  
• Support the delivery of minor system enhancements and operational improvements
  

Infrastructure & Environment Management

• Work collaboratively with infrastructure networking and security teams
  
• Support physical virtualised and hybrid infrastructure environments underpinning application services
  
• Assist with lifecycle activities including upgrades and retirement of legacy components
  

Documentation & Operational Readiness

• Develop maintain and review:
  • Technical documentation
    
  • Standard Operating Procedures (SOPs)
    
  • Support and operational runbooks
    
• Ensure documentation supports audit compliance and knowledge transfer requirements
  

Required Skills and Experience

• Extensive experience supporting enterprise applications built on the technology stack
  
• Strong experience in:
  • Windows Server environments
    
  • IIS application hosting
    
  • Web services and batch processing
    
• Demonstrated experience in incident problem and change management
  
• Proven ability to operate in highavailability securityconscious environments
  
• Strong analytical and troubleshooting skills
  
• Excellent written and verbal communication skills
  

Desirable Experience

• Experience within Australian Government or other large regulated environments
  
• Familiarity with government security policies and compliance frameworks