Cyber Security Analyst L4

Test Triangle; Leatherhead; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading technology service provider in the UK is seeking a skilled professional to provide 3rd Line support across Windows, Linux, and security services. The ideal candidate will manage core enterprise platforms such as Windows Server and SQL Server, while also implementing security solutions. A strong background in infrastructure security consulting with 5-8 years of experience is essential. This role offers opportunities for further professional development and contribution to innovative projects in a hybrid working environment.

Qualifications

• 5-8 years of experience in infrastructure security consulting.
• Proven track record in senior infrastructure or systems engineering.
• Experience managing and optimizing core enterprise platforms.

Responsibilities

• Provide 3rd Line support across a variety of services including Windows, Linux, and security.
• Manage and optimize Windows Server and SQL Server.
• Administer and maintain Linux environments.

Skills

Infrastructure Security Consulting

Windows Server

Active Directory

SQL Server

Linux (Red Hat, Satellite)

AWS or Azure

Security/SaaS solutions

Fortinet security technologies

Networking fundamentals

PowerShell, Bash, Python

Job description

Job Description

Location : Leatherhead(3 Daya s aweek)

Key Responsibilities

• Provide 3rd Line support across Windows, Linux, cloud, and security services.
• Manage and optimize Windows Server, Active Directory, and SQL Server as the core enterprise platforms.
• Administer and maintain Linux environments (Red Hat, Satellite) alongside Windows services.
• Support and enhance cloud services (AWS, Azure, or similar) across compute, networking, storage, IAM, and automation.
• Implement and manage security / SaaS platforms including Tenable, CyberArk, Imperva / Akamai WAF, Okta, CrowdStrike, Proofpoint, Safe Breach, Zscaler, and Splunk.
• Deliver infrastructure projects including upgrades, migrations, and new deployments.
• Proactively monitor systems, identify vulnerabilities, and implement preventative measures.
• Support business continuity and disaster recovery initiatives.
• Provide input into solution designs, change control processes, and operational standards.
• Collaborate with stakeholders to define requirements and deliver operational improvements.
• Maintain documentation, including technical procedures and stakeholder reporting.
• Mentor and support junior colleagues, sharing knowledge and best practices.
• Be available, when required, for out-of-hours upgrades, maintenance, and incident response.

Core Skills & Experience

• Proven track record in senior infrastructure or systems engineering.
• Strong experience with Windows Server, Active Directory, and SQL Server.
• Good hands-on experience with Linux (Red Hat, Satellite).
• Good knowledge of cloud platforms (AWS, Azure, or similar).
• Good Level of understanding and administration in security / SaaS solutions : Tenable, CyberArk, Imperva / Akamai WAF, Okta, CrowdStrike, Proofpoint, SafeBreach, Zscaler, Splunk.
• Strong knowledge of Fortinet security technologies (Firewalls, FortiManager, FortiAnalyzer).
• Strong understanding of networking fundamentals (TCP / IP, VLANs, routing, firewalls).
• Hands-on experience with infrastructure monitoring platforms, particularly WhatsUp Gold.
• Scripting and automation skills (PowerShell, Bash, Python).
• Proven ability to troubleshoot and resolve complex issues in hybrid environments.

Desirable Skills

• Familiarity with VMware, Cisco, and Dell Servers.
• Experience working in regulated or change-controlled environments.
• Knowledge of high availability and disaster recovery solutions.
• Exposure to DevOps, CI / CD, and automation frameworks.
• Experience with Kubernetes and containerised environments.

Personal Attributes

• Passionate about technology, problem-solving, and innovation.
• Analytical thinker with excellent troubleshooting skills.
• Strong communication skills, able to work with technical and non-technical audiences.
• Highly motivated, detail-oriented, and able to deliver under pressure.
• Team-oriented, collaborative, and capable of mentoring colleagues.

Ensuring customer centricity by providing apt cybersecurity

• Monitoring and safeguarding the log sources and security access
• Planning for disaster recovery in the event of any security breaches
• Monitor for attacks, intrusions and unusual, unauthorized or illegal activity
• Performs moderately complex log reviews and forensic analysis to identify unauthorized or unacceptable access to data or systems
• Conduct security assessments, risk analysis and root cause analysis of security incidents
• Handling incidents escalated by the L1 team in 24x7 rotational shifts
• Use advanced analytics tools to determine emerging threat patterns and vulnerabilities
• Completing all tactical security operations tasks associated with this engagement.
• Analyses all the attacks and come up with remedial attack analysis
• Conduct detailed analysis of incidents and create reports and dashboards

Stakeholder coordination & audit assistance

• Liaise with stakeholders in relation to cyber security issues and provide future recommendations
• Maintain an information security risk register and assist with internal and external audits relating to information security
• Assist with the creation, maintenance and delivery of cyber security awareness training for colleagues
• Advice and guidance to employees on issues such as spam and unwanted or malicious emails

Deliver

No.

Performance Parameters

1. Customer centricity: Timely security breach solutioning to end users, internal stakeholders & external customers experience
2. Process Adherence: Adherence to SLAs (90-95%), response time and resolution time TAT

Mandatory Skills : Infrastructure Security Consulting.

Experience : 5-8 Years.