Hybrid: 2 days office, 3 days from home.
Rate: £400 (per day) and the duration is from Dec’25 to Mar’26
Must have SC clearance
OS Hardening & Impact Assessment
This role involves securing servers (primarily Linux/Unix, with some Windows) by applying hardening standards through manual configuration and script-based automation. Strong OS knowledge, troubleshooting skills, and the ability to assess and mitigate risks during configuration changes, including GPO-related changes, are required.
Responsibilities
* Modify and adapt PowerShell and Shell scripts for environment-specific needs.
* Analyze the impact of configuration changes and perform rollbacks when necessary.
* Collaborate with security and infrastructure teams to ensure compliance.
* Lead troubleshooting and rollback strategies during incidents.
* Create implementation and rollback plans (Change Management).
Required Skills
* Deep knowledge of Linux/Unix internals (kernel parameters, services) and Windows OS.
* Strong troubleshooting skills for complex issues.
* Basic scripting skills (PowerShell, Bash).
* Ability to assess risks and validate changes before implementation.
* Experience in infrastructure-level impact analysis.
Seniority level
Mid‑Senior level
Employment type
Contract
Job function
Information Technology
Industries
* Telecommunications and Technology
* Information and Media
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