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Computer Application Support Specialist (CAS) – Senior

Petawawa, ON
On-site
Posted Aug 31, 2026
1 position

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Employment type: Full-time
Experience level: Senior · 5+ years
Apply by: Sep 30, 2026
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Provide on-site service desk and technical support for networking environments, end-user systems, and applications. Manage user accounts and perform system troubleshooting to ensure maximum efficiency and productivity.

Job details

Position 1 Classification: Computer Application Support Specialist (CAS) – Senior Language: English Security Clearance: Mandatory – Reliability Clearance Position 2 Classification: Computer Application Support Specialist (CAS) – Senior Language: Mandatory – Bilingual (English/French) Security Clearance: Mandatory – Reliability Clearance Position Overview The 4th Canadian Division Signal Squadron is seeking two experienced Senior Computer Application Support Specialists (CAS) to provide on-site service desk and technical support. The successful candidates will support networking environments, end-user systems, applications, account management, troubleshooting, and IT service management activities. Candidates must be available for the full contract duration, able to work on-site in Petawawa, Ontario, and meet all mandatory security and language requirements. Mandatory Skills & Experience Candidates must demonstrate experience and capability in the following areas: Experience working in a networking environment. Ability to configure network software and ensure compatibility among relevant: Programs Utilities Hardware Peripherals Detailed knowledge of commonly used: Software applications Operating systems Communication protocols Ability to ensure systems operate at maximum efficiency and productivity. Experience utilizing and supporting communication features. Strong system troubleshooting experience, including: Printer troubleshooting CPU/system troubleshooting Experience providing 1st line service desk support and troubleshooting through remote connections. Experience in 1st line service support for account management, including: Account creation Account modifications Account movement/transfer Experience supporting cloud-based applications. Experience with Active Directory (AD), including: File management Object management Experience working with online service management/ticketing systems. Experience with EITSM Assyst is considered a strong asset and will be given preference. Requirements Mandatory Requirements Security Clearance Valid Reliability Clearance is mandatory. Candidates must be able to provide proof of security clearance. Contract start is contingent upon a valid VCR. Language Requirements Position 1: English Position 2: Bilingual – English and French Location Candidates must be willing and able to work 100% on-site in Petawawa, Ontario.

What you’ll do

Requirements

Candidates must possess a valid Reliability Clearance and experience with Active Directory and networking environments. One position requires English proficiency, while the second requires bilingualism in English and French.