Sr System Engineer ( Wintel)

What success looks like in this role: Key responsibilitiesOperate and maintain Windows Server environments - including patching, hardening, and troubleshooting. Manage PKI and certificate lifecycle - design, issue, renew, and revoke certificates; administer KeyFactor Command.Administer Active Directory and Domain Controllers - including GPOs, replication, and AD health. Support cloud identity and connectivity - Entra Connect, Entra ID, and integration with on‑prem systems. Manage AWS Connect - integrations and related cloud services. Deploy and support Azure Virtual Desktop - environments and user profiles. Administer Nerdio - or AVD provisioning and management. Participate in incident response, root cause analysis, and postmortems.Automate operational tasks using scripting where appropriate. Document runbooks, run regular health checks, and provide knowledge transfer.Required skills and experienceProven experience with Windows Server administration.Strong knowledge of PKI and certificate management - experience with KeyFactor Command preferred. Hands‑on Active Directory and Domain Controller experience.Experience with Entra Connect and Entra ID - configuration and troubleshooting. Familiarity with Azure AVD and Nerdio - for desktop virtualization. Experience integrating on‑prem identity with cloud services.Scripting skills - for automation and operational tasks. Solid troubleshooting and incident management skills.Good communication skills and ability to work within cross‑functional teams.NV1 security clearance must have for this role.Nice to haveVMware - administration experience. CyberArk Machine Identity or other machine identity management experience. Experience with AWS services. Certifications such as Microsoft Certified - Azure Administrator, Microsoft Certified: Identity and Access Administrator, or relevant security certifications.#LI-AP1You will be successful in this role if you have:BA/BS degree and 6-8 years’ relevant experience OR equivalent combination of education and experienceMicrosoft CertificationsUnisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.Local employment practices and rights may vary by jurisdiction and are subject to applicable local laws. This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers.If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at View email address on click.appcast.io. US job seekers can find more information about Unisys’ EEO commitment here.SummaryLocation: Melbourne, VIC, Australia; Sydney; Canberra, ACT, AustraliaType: Full time