Senior Computer Application Support Specialist (CAS)
Upstaff
? HIRING – Senior Computer Application Support Specialist (CAS)
Job Title: Computer Application Support Specialist (CAS) – Senior
Client: 4th Canadian Division Signal Squadron
Industry: Government / Defense & Military / Information Technology
Location: Petawawa, Ontario
Work Arrangement: 100% On-site
Contract: September 14, 2026 – March 31, 2027
Positions: 2
Language: English
Security Clearance: Valid Reliability Clearance – Mandatory
We are currently seeking an experienced Senior Computer Application Support Specialist (CAS) to provide on-site service desk, application, systems, account, and technical support for the 4th Canadian Division Signal Squadron.
The successful candidate will have strong hands-on experience supporting end users in a networking environment, troubleshooting hardware and software issues, managing user accounts, supporting Active Directory, and working with IT service management/ticketing systems.
? Key Responsibilities
• Provide 1st line service desk and technical support to end users.
• Troubleshoot and resolve hardware, software, system, printer, and CPU-related issues.
• Provide technical support through remote connections when required.
• Support users in a networking environment and troubleshoot connectivity-related issues.
• Configure and support network software and ensure compatibility between applications, utilities, hardware, and peripherals.
• Support commonly used software applications, operating systems, and communication protocols.
• Assist with system configuration and ensure systems operate efficiently and productively.
• Provide support for communication features and related technologies.
• Perform account management activities , including account creation, modification, movement, and transfers.
• Support and manage user accounts and objects within Active Directory (AD) .
• Assist with file management and other Active Directory-related activities.
• Provide technical support for cloud-based applications .
• Log, update, track, and resolve incidents and service requests using online IT service management/ticketing systems .
• Diagnose issues, document resolutions, and escalate complex incidents when required.
• Provide professional customer service and clear communication to end users.
?
Requirements
Mandatory Skills & Experience
Candidates should have demonstrated experience in:
✅ Networking environments
✅ Network software configuration and support
✅ Operating systems and commonly used software applications
✅ Communication protocols and communication features
✅ Hardware and peripheral troubleshooting
✅ Printer troubleshooting
✅ CPU/system troubleshooting
✅ 1st line service desk/help desk support
✅ Remote technical support
✅ User account creation and modification
✅ Account movement/transfer
✅ Active Directory
✅ File and object management
✅ Cloud-based applications
✅ IT service management/ticketing systems
⭐ Strong Asset
EITSM Assyst experience will be considered a strong asset and may receive preference.
? Security Clearance – Mandatory
Valid Reliability Clearance is mandatory.
Candidates must be able to provide proof of their security clearance .
The contract start date is subject to the candidate having a valid VCR .
? Work Location
4 CDSG Signal Squadron – Service Desk
Building S111
101 Menin Drive
Petawawa, ON K8H 2X3
This is a 100% on-site position . Candidates must be willing and able to work on-site in Petawawa, Ontario for the full contract duration.
? Ideal Candidate
The ideal candidate is a senior IT support professional with strong hands-on experience in service desk support, networking, Active Directory, account administration, troubleshooting, cloud applications, and ITSM environments .
Candidates who have experience supporting government, military, defense, or enterprise IT environments are encouraged to apply.
? Interested candidates: Please send your updated resume along with your contact details and confirmation of your Reliability Clearance .
Only candidates who meet the mandatory requirements and can work 100% on-site in Petawawa will be considered.
#Hiring #ITJobs #ITSupport #ServiceDesk #HelpDesk #TechnicalSupport #ComputerSupport #ActiveDirectory #Networking #ITSM #EITSM #Assyst #PetawawaJobs #OntarioJobs #CanadaJobs #ContractJobs
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