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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. Please note that this role requires being in the office five days per week.
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
Seniority level
* Seniority level
Mid-Senior level
Employment type
* Employment type
Contract
Job function
* Job function
Information Technology
* Industries
Non-profit Organizations and Primary and Secondary Education
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