About the role

CiraSync On-Premise is our self-hosted contact and calendar synchronization platform for Microsoft Exchange environments. It is the most technically demanding product in our portfolio, and today only a small number of agents can support it. We are hiring a dedicated engineer to expand that coverage.

You will work directly inside customer environments — on-premises Exchange, Active Directory, Windows Server, and the networking layer around them — diagnosing sync, permission, mail flow, and connectivity issues alongside enterprise IT teams. This is a support role that suits a working IT administrator: most of the day is spent doing the kind of troubleshooting a sysadmin already does, but across many customer environments instead of one.
- What you will do
- Own on-premises support tickets end to end, from intake through resolution and follow-up
- Reproduce customer issues in an internal lab environment before escalating
- Escalate to engineering with clear, structured reproduction steps and evidence
- Support customer upgrades, server migrations,



and environment health checks
- Write and maintain knowledge base articles so that on-premises expertise is documented rather than held individually
- Participate in internal knowledge sharing to reduce single-point coverage risk on this product

What you’ll bring
- 3+ years as an IT Administrator or Systems Administrator in a Windows Server environment
- Hands-on on-premises Exchange Server administration (2013 / 2016 / 2019 / SE): mailbox and public folder management, permissions, mail flow, Exchange Management Shell
- Hands-on on-premises Active Directory: organizational units, security and distribution groups, delegated permissions, user attributes, Group Policy
- On-premises networking troubleshooting: DNS, firewalls and proxies, TLS certificates, ports and service accounts, connectivity testing
- Windows Server administration, including services, IIS basics, and log file analysis
- Comfortable working i

📌 Technical Support Engineer (Buenos Aires)
🏢 Cira Apps
📍 Buenos Aires