IT Systems & Infrastructure Owner – On-Site

Sigmar Recruitment; Ulster; On-site; EUR 45,000 - 55,000; Full time

Job summary

Sigmar Recruitment is seeking an IT Systems & Applications Administrator for a manufacturing site. You will take hands-on responsibility for day-to-day IT operations and ongoing infrastructure improvements.

You will manage Windows Servers, Hyper‑V, Active Directory, Group Policy, DNS/DHCP, and Microsoft 365 services, and support bespoke production applications while collaborating with software partners.

Qualifications

• Proven experience as a Systems Administrator or IT Infrastructure Engineer, ideally in manufacturing, engineering, logistics, or similar operational setting.
• Strong hands-on expertise with Microsoft Windows Server, Active Directory, Group Policy, DNS, DHCP, and Hyper‑V.
• Solid practical knowledge of Microsoft SQL Server and SQL queries.
• Firm grasp of networking fundamentals: TCP/IP, VLANs, routing, switching, VPNs, and firewalls.
• Experience managing Microsoft 365.
• Comfortable supporting bespoke applications; reading/troubleshooting VB or VB.NET code is highly desirable (but not essential).
• Excellent troubleshooting and independent problem solving with strong communication and organisational abilities.

Responsibilities

• Take full hands-on responsibility for day-to-day IT operations and site infrastructure improvements.
• Administer and maintain Windows Servers and virtual environments (Hyper‑V).
• Support production applications and collaborate with software partners.
• Troubleshoot complex issues across hardware, software, networks and databases for shop floor users.
• Own the Microsoft SQL Server data extraction, reporting and query resolution.
• Maintain and improve site networking, firewalls, and security systems.

Skills

Windows Server

Active Directory

Group Policy

DNS

DHCP

Hyper-V

Microsoft 365

SQL Server

Networking fundamentals

VB.NET

Tools

SonicWall

UniFi

SQL Server Management Studio

Job description

Sigmar Recruitment is seeking an IT Systems & Applications Administrator for a manufacturing site. You will take hands-on responsibility for day-to-day IT operations and ongoing infrastructure improvements.

You will manage Windows Servers, Hyper‑V, Active Directory, Group Policy, DNS/DHCP, and Microsoft 365 services, and support bespoke production applications while collaborating with software partners.