Infrastructure Consultant - Windows/Linux, Network & Security

Capula; London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading company is seeking an Infrastructure Consultant skilled in Windows/Linux and security for their London office. This 6-month contract includes responsibilities such as troubleshooting server and network issues, supporting user escalations, and contributing to infrastructure projects. Ideal candidates will have over 5 years of relevant experience and excellent communication skills.

Qualifications

• Minimum 5 years of experience in systems and infrastructure support roles.
• Strong experience with Windows Server and Linux.
• Experience in implementing infrastructure security controls.

Responsibilities

• Provide advanced technical support for server, networking, and security incidents.
• Manage and troubleshoot Windows and Linux environments.
• Support and maintain network infrastructure including firewalls and switches.

Skills

Troubleshooting

Analytical skills

Networking concepts

Communication

Tools

VMware

Cisco technologies

PowerShell

Bash

Job description

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Infrastructure Consultant - Windows/Linux, Network & Security, London

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Client:

Capula

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

7988de210d4d

Job Views:

4

Posted:

02.06.2025

Expiry Date:

17.07.2025

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Job Description:

Job Title: Infrastructure Consultant – Windows/Linux, Network & Security
Location: London
Contract Term: 6 months (with potential extension)

Role Summary

We are seeking a hands-on Infrastructure Consultant with strong expertise in server (Windows/Linux), network, and security domains. This role is primarily focused on supporting day-to-day user requests, managing escalated (2nd/3rd tier) technical issues, and contributing to ongoing infrastructure projects.

Key Responsibilities

• Provide advanced technical support and resolution for server, networking, and security-related incidents and service requests.
• Manage and troubleshoot issues across Windows Server (2016/2019/2022) and Linux environments (primarily Red Hat/CentOS).
• Respond to and resolve 2nd/3rd tier user escalations across desktop, server, and network domains.
• Support and maintain network infrastructure including firewalls, switches, VPNs, and wireless systems (primarily Cisco-based).
• Conduct regular patching, hardening, and performance tuning of infrastructure systems.
• Assist with security operations, including endpoint protection, vulnerability remediation, and log analysis.
• Collaborate with other infrastructure and security teams to support project delivery and BAU enhancements.
• Create and maintain detailed infrastructure documentation and SOPs.
• Participate in an on-call rotation for critical support outside business hours.

Requirements

Qualifications & Experience

• Minimum 5 years of experience in systems and infrastructure support roles.
• Strong experience with both Windows Server and Linux (Red Hat, CentOS).
• Solid understanding of networking concepts (TCP/IP, VLANs, VPNs, DNS, DHCP) and hands-on experience with Cisco technologies.
• Experience in implementing or supporting infrastructure security controls, including patching, endpoint protection, and identity/access management.
• Familiarity with virtualization technologies (VMware) and enterprise storage solutions (SAN/NAS).
• Exposure to scripting (PowerShell, Bash) and automation tools is a plus.
• Prior experience in financial services or other regulated industries is preferred.

Soft Skills

• Strong troubleshooting and analytical skills.
• Ability to manage multiple priorities in a fast-paced environment.
• Excellent communication skills; able to work effectively with users and technical teams.
• Self-driven, with the ability to take ownership of problems and see them through to resolution.