Senior Systems Administrator - Network Infrastructure

Placements24; Greater London; On-site; CAD 104,000 - 141,000; Full time

Benefits offered by this job

Medical benefits

Retirement benefits

Professional development

Generous paid time off

Job summary

Placements24 is seeking a Senior Systems Administrator for a well-established manufacturing firm in East London. You will manage and maintain critical network infrastructure and server environments, ensuring security, stability and performance across the organization.

Responsibilities include provisioning, configuration, maintenance, and troubleshooting, with opportunities for professional development within a supportive team.

Qualifications

• Bachelor’s degree in IT, CS, or related field, or equivalent.
• 5+ years as Systems Administrator or Network Administrator.
• Strong knowledge of Windows Server and Linux distributions.
• Proficiency with TCP/IP, DNS, DHCP, and VPN technologies.
• Experience with virtualization (VMware, Hyper-V) and cloud platforms (AWS, Azure).
• Strong troubleshooting and teamwork abilities.

Responsibilities

• Administer and maintain Windows and/or Linux server environments for performance and availability.
• Manage network infrastructure: routers, switches, firewalls, and VPNs.
• Implement and maintain system security: patching, antivirus, and access controls.
• Perform regular backups and develop disaster recovery plans.
• Monitor system performance and proactively resolve issues.
• Provide technical support for hardware, software, and networks.
• Document configurations, procedures, and troubleshooting guides.

Skills

5+ years experience

Troubleshooting

Team collaboration

Education

Bachelor's degree in IT/CS or related field

Tools

Windows Server

Linux

VMware

Hyper-V

AWS

Azure

DNS

DHCP

VPNs

Job description

About the Role

Our client, a well-established manufacturing firm in East London , is seeking an experienced Senior Systems Administrator to manage and maintain its critical network infrastructure and server environment. This role is essential for ensuring the stability, security, and performance of the company's IT systems, supporting seamless operations across the organization. You will be responsible for system provisioning, configuration, maintenance, and troubleshooting. This is an excellent opportunity for a seasoned IT professional to contribute to the operational backbone of a key industry player in East London .

Key Responsibilities

• Administer and maintain Windows and/or Linux server environments, ensuring optimal performance and availability.
• Manage and troubleshoot network infrastructure, including routers, switches, firewalls, and VPNs.
• Implement and maintain system security measures, including patching, antivirus, and access control.
• Perform regular system backups and develop disaster recovery plans.
• Monitor system performance, identify potential issues, and proactively resolve them.
• Provide technical support and troubleshooting for hardware, software, and network issues.
• Document system configurations, procedures, and troubleshooting guides.

Requirements

• Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent work experience.
• 5+ years of experience as a Systems Administrator or Network Administrator.
• Strong knowledge of server operating systems (Windows Server, Linux distributions).
• Proficiency in network protocols and technologies (TCP/IP, DNS, DHCP, VPNs).
• Experience with virtualization technologies (e.g., VMware, Hyper‑V) and cloud platforms (AWS, Azure) is a plus.
• Strong troubleshooting skills and the ability to work effectively in a team environment.

Benefits

• Competitive salary package based on experience and qualifications.
• Comprehensive medical and retirement benefits.
• Opportunities for professional development and IT certifications.
• Supportive team environment within a stable organization located in East London .
• Generous paid time off and company holidays.
• Work on essential infrastructure critical to the company's success.