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Senior IT Infrastructure Administrator, Security
ConfluenceSenior Infrastructure professional solving practical security challenges and improving enterprise systems security at Confluence. Focused on implementation, remediation, and secure operations across Windows and Linux environments.
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates extensive experience in enterprise systems administration with a strong focus on vulnerability remediation, patch management, and secure operations across Windows and Linux environments. Proficient in managing certificate lifecycles and utilizing security tools such as Privileged Access Management and Cloudflare.
Highest-signal resume keywords
Vulnerability RemediationWindows Server AdministrationLinux AdministrationCertificate Lifecycle ManagementScripting/Automation Skills
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Enterprise Systems AdministrationVulnerability RemediationPatch ManagementWindows ServerLinux AdministrationCertificate Lifecycle ManagementScriptingPowerShellSecurity ControlsConfiguration Management
Tools & Technologies
Privileged Access ManagementCloudflareSplunkSumo LogicLogging/Monitoring Platforms
Industry Keywords
IT InfrastructureCybersecurityOperational ResilienceTLSPKIEdge Security
Tech Stack
Tools & technologiesCyber SecurityDNSLinuxSplunk
About the role
Key responsibilities & impact- We’re looking for a senior infrastructure professional who enjoys solving practical security challenges and improving how security is delivered across enterprise systems.
- This role sits within the IT Infrastructure team and works closely with Cybersecurity, with a strong focus on implementation, remediation, and secure operations across Windows and Linux environments.
- You’ll take direct ownership of vulnerability remediation, help improve patching cycles, and ensure systems are securely configured and operationally resilient.
- You’ll also contribute to key initiatives including certificate lifecycle management and the operational use of security platforms such as Privileged Access Management and Cloudflare.
Requirements
What you’ll need- 8+ years of experience in enterprise systems administration or IT infrastructure
- Strong generalist infrastructure background with the ability to work across multiple systems and environments
- Hands-on experience with Windows Server (Active Directory, DNS, authentication, certificates) and working knowledge of Linux administration
- Experience managing certificate lifecycle (TLS/PKI), including renewal and ongoing management (key priority)
- Exposure to security tools such as Privileged Access Management (PAM) and Cloudflare (WAF/edge security)
- Experience with logging/monitoring platforms (e.g., Splunk, Sumo Logic or similar)
- Proven ability to remediate vulnerabilities hands-on, including patching and reducing backlog across systems
- Strong scripting/automation skills (PowerShell required)
- Ability to apply security controls across infrastructure and prevent misconfigurations
Benefits
Comp & perks- Generous Time Off packages including additional half days with each public holiday in your location.
- Global Career Development opportunities
- Social Events
- Referral Bonus scheme - Upto $3,000 per successful referral