Junior Cyber Security Analyst - Hands-on SOC & Defender

Executive Jet Support Ltd; Chippenham; On-site; GBP 24,000 - 30,000; Full time

Benefits offered by this job

Annual bonus

Life assurance

Private healthcare

Birthday day off

Staff events

Job summary

Executive Jet Support Ltd. is hiring a Junior Cyber Security Analyst for an on-site, full-time role in Chippenham. You will monitor security alerts with Defender XDR, investigate email threats, and help remediate incidents across Microsoft 365 and endpoint security.

The role requires familiarity with Windows, Microsoft 365, Defender products, and SOC environments. A strong learning mindset and attention to detail are essential for ongoing security improvements in a growing aviation company.

Qualifications

• Good understanding of Windows operating systems.
• Basic understanding of Microsoft 365 and Active Directory.
• Awareness of phishing, ransomware and malware threats.
• Understanding of email security principles.
• Familiarity with MFA, least privilege, and endpoint protection.
• Strong troubleshooting and analytical skills.
• Good attention to detail and communication.
• Willingness to learn and develop security skills.
• Experience with Defender XDR.
• Experience reviewing security alerts or working in a SOC.
• Knowledge of Defender for Endpoint and ASR rules.
• Familiarity with Group Policy (GPO).
• Experience with Intune and SIEM platforms.

Responsibilities

• Monitor and triage security alerts from Defender XDR and other platforms.
• Investigate email threats including phishing, malware, and suspicious attachments.
• Manage Microsoft 365 email quarantine and release legitimate messages.
• Assist with incident remediation and security improvements.
• Support vulnerability management and security hardening activities.
• Review alerts from protection platforms and maintain incident records.
• Monitor endpoint security across Windows devices and servers.
• Assist with implementing and maintaining Microsoft security controls.
• Support Defender, Intune and Microsoft 365 security features.
• Review and maintain Attack Surface Reduction policies.
• Support security awareness initiatives and user education.
• Escalate significant threats to senior engineers when required.
• Collaborate with the wider IT team to improve security posture.

Skills

Windows OS knowledge

Microsoft 365 basics

Active Directory basics

Cyber security awareness

Email security basics

MFA and least privilege

Endpoint protection basics

Troubleshooting skills

Attention to detail

Communication skills

Learning mindset

Defender XDR experience

SOC experience

Vulnerability management basics

Tools

Microsoft Defender XDR

Microsoft Defender for Endpoint

Intune

Microsoft 365 security features

ASR policies

GPO

Sentinel/SIEM

Job description

Executive Jet Support Ltd. is hiring a Junior Cyber Security Analyst for an on-site, full-time role in Chippenham. You will monitor security alerts with Defender XDR, investigate email threats, and help remediate incidents across Microsoft 365 and endpoint security.

The role requires familiarity with Windows, Microsoft 365, Defender products, and SOC environments. A strong learning mindset and attention to detail are essential for ongoing security improvements in a growing aviation company.