System Administrator

Location: National Capital District, Papua New Guinea, Papua New Guinea

Industry: Airline / Airport / Travel, IT, Telecommunications

Job ID: #29050

Date Posted: 26th October 2026

Source: www.pngworkforce.com

We at PNG Air pride ourselves as the leading domestic airline operating over 26 ports across the length and breadth of Papua New Guinea as the Airline of Choice. Operating the largest fleet of ATR 72-600 series in the region. We are committed to providing affordable world class experience with value fares and unbeatable cargo rates, ensuring reliable and safe on time service to our valued customers and stakeholders

System Administrator

The IT Division is seeking to recruit a qualified System Administrator based in Port Moresby. The L2 Data Centre System Administrator owns PNG Air's data centre and DR end to end: servers, storage, virtualisation, backup, databases and the business and enterprise applications that run on them. The role also runs Microsoft 365, Exchange and Active Directory, and keeps every certificate, licence and subscription renewed on time. It takes escalations from the Service Desk and delivers changes under change control.

Key responsibilities include the following:

Data centre and disaster recovery

• Own the end-to-end operation of the primary data centre and DR site: servers, storage, power, UPS, cooling, environmental monitoringand physical access.
• Maintain the DR plan, replication and failover runbooks; run DR tests at least twice a year and report RTO/RPO results.
• Plan capacity, hardware refresh and lifecycle for compute and storage.

Virtualisation

• Administer the virtualisation platform (VMware today, plus any replacement such as Hyper-V, Proxmox or Nutanix): hosts, clusters, VMs,templates, snapshots and resource allocation.
• Lead or support the migration off the current virtualisation platform with minimal downtime.

Backup and recovery

• Run backup and restore across servers, databases, M365 and applications, including ransomware-safe offline and tape backups.
• Verify backups daily and perform scheduled test restores.

Servers and operating systems

• Administer Windows Server and Linux (Ubuntu) servers: builds, patching, hardening, performance and Docker-based workloads.
• Manage file, print, DHCP, DNS and other core infrastructure services.

Database management

• Administer SQL Server, PostgreSQL and MySQL: installation, upgrades, user access, backups, performance tuning and integrity checks.

Application management

• Support business and enterprise applications (e.g. crew management, HRMS, finance, ITSM and in-house apps): installation, upgrades,integrations, access and vendor coordination.
• Own the master register of SSL/TLS certificates, software licences, domains and subscriptions; renew all before expiry with alerts in

Microsoft 365, Exchange and Active Directory

• Administer Microsoft 365 and Entra ID: users, licences, Exchange Online, Teams, SharePoint, OneDrive, conditional access and MFA.
• Manage on-prem Exchange and support migration of remaining mailboxes to Exchange Online.
• Administer Active Directory: users, groups, OUs, Group Policy, AD Connect sync, DNS and domain controller health.

Security, monitoring and change

• Apply patches, hardening and vulnerability fixes in line with ISO/IEC 27001 controls; manage endpoint protection and privileged access.
• Monitor servers, storage and applications in Zabbix and act on alerts before they become outages.
• Resolve L2 incidents within SLA, create RCA reports for P1/P2 and recurring incidents, and raise changes through Change Managementwith tested rollback plans.

Documentation and team

• Create SOPs, HLDs, LLDs, runbooks and project reports; keep server, application and asset inventories accurate and audit-ready.
• Coach L1 and graduate team members through hands-on knowledge transfer; take part in the on-call roste

Qualifications, Skills and Competencies:

• Diploma or degree in IT, Computer Science or a related field.
• At least 6–8 years of hands-on, end-to-end data centre and systems administration experience in an enterprise environment.
• Microsoft certifications (e.g. Azure Administrator, M365 Administrator) and VMware VCP or equivalent preferred.
• Linux, database or backup-vendor certifications (e.g. RHCSA, Veeam VMCE) an advantage.
• ITIL 4 Foundation preferred.
• Experience in aviation or a multi-site enterprise is an advantage.

To apply, please send your application to: [email protected]

Late applications & applications submitted in hard copy will not be accepted.

Please submit application in one PDF file.

Applications close: Monday09th November 2026

Only shortlisted candidates will be contacted

“We are an equal opportunity employer”