Security Analyst - Up to £450 per day

Cloud Bridge Tech Recruitment; Harrow; On-site; GBP 65,000 - 92,000; Part time

Job summary

Cloud Bridge Tech Recruitment is seeking a Security Analyst to join the internal IT and Security function on a 3-month contract, working 2 days per week onsite near Holborn Underground Station. The role focuses on protecting against email-based threats, handling security incidents, and assisting end users with security queries.

You will actively participate in phishing investigations, email validation, and threat triage using Mimecast, Microsoft Defender, and Freshservice, with strong

Qualifications

• Experience as Security Analyst, SOC Analyst, Information Security Analyst, or similar.
• Hands-on Mimecast experience including quarantine management and release processes.
• Experience with Microsoft Defender and related security tooling.
• Familiarity with Freshservice or similar ITSM/ticketing platform.
• Strong understanding of phishing attacks and email security threats.
• Ability to quickly investigate and assess security risks.
• Excellent communication and stakeholder engagement skills.

Responsibilities

• Investigate, analyse and respond to suspected phishing and malicious emails.
• Review reported emails and determine legitimacy or security threat.
• Manage email quarantine and release requests via Mimecast.
• Monitor security alerts in Microsoft Defender.
• Triage and manage security incidents through Freshservice.
• Escalate confirmed threats following established procedures.
• Identify trends in phishing, spam campaigns and social engineering.
• Block malicious senders, domains and email threats where appropriate.
• Support end users with security guidance and best practices.
• Maintain records of investigations and incident outcomes.
• Collaborate with IT and Security teams to improve email security processes.
• Assist with security reporting and threat trend updates.

Skills

Security analysis

Threat detection

Phishing investigations

Stakeholder engagement

Communication skills

Investigation & problem solving

Attention to detail

Tools

Mimecast

Microsoft Defender

Freshservice

Job description

3 months contract (Inside IR35)

2 Days Per Week Onsite (Office located near Holborn Underground Station)

Overview

We are seeking an enthusiastic and proactive Security Analyst to join a busy internal IT and Security function on an initial 3-month contract. This role is ideal for someone with strong email security experience who enjoys working directly with users, investigating threats, and helping to maintain a secure working environment.

The successful candidate will play a key role in protecting the business from email-based threats, managing security incidents, and supporting end users with security-related queries. You'll be heavily involved in phishing investigations, email validation, message release requests and security alert triage using industry-leading tools including Mimecast, Microsoft Defender, and Freshservice.

This is a highly visible role requiring strong communication skills, attention to detail, and a customer-focused approach. The ideal candidate will be comfortable engaging with stakeholders across the business and helping users understand security risks in a clear and professional manner.

Key Responsibilities

• Investigate, analyse and respond to suspected phishing and malicious emails.


• Review reported emails and determine whether communications are legitimate or represent a security threat.


• Manage email quarantine and release requests through Mimecast.


• Monitor and respond to security alerts generated within Microsoft Defender.


• Triage and manage security incidents and requests through Freshservice.


• Escalate confirmed threats and incidents following established security procedures.


• Identify trends in phishing attacks, spam campaigns and social engineering attempts.


• Block malicious senders, domains and email threats where appropriate.


• Support end users with security-related concerns and provide guidance on best practice.


• Maintain accurate records of investigations, actions taken and incident outcomes.


• Work closely with IT and Security teams to continuously improve email security processes.


• Assist with security reporting and provide updates on threat activity and incident trends.

Required Skills & Experience

• Previous experience working as a Security Analyst, SOC Analyst, Information Security Analyst, or similar.


• Hands-on experience with Mimecast, including quarantine management and email release processes.


• Experience using Microsoft Defender and associated security tooling.


• Experience working with Freshservice or a similar ITSM/ticket management platform.


• Strong understanding of phishing attacks, email security threats and social engineering techniques.


• Ability to investigate and assess security risks quickly and accurately.


• Excellent communication and stakeholder engagement skills.


• Strong analytical and problem-solving abilities.


• High attention to detail and a methodical approach to investigations.


• Ability to work independently and manage workload effectively within a part-time contract.

Desirable Experience

• Experience within a legal, corporate, financial services or professional services environment.


• Knowledge of Microsoft 365 security and administration.


• Understanding of incident response procedures and security operations.


• Familiarity with email authentication technologies such as SPF, DKIM and DMARC.


• Exposure to endpoint security and threat detection platforms.

Personal Attributes

• Approachable, outgoing and personable.


• Strong customer service mindset.


• Excellent verbal and written communication skills.


• Naturally inquisitive with a keen eye for detail.


• Confident communicating with both technical and non-technical stakeholders.


• Proactive and able to take ownership of investigations and incidents.


• Team player with a collaborative working style.

As part of Cloud Bridge, an AWS Premier Partner, we bring deep cloud expertise into every hiring conversation. Here, technology meets empathy — connecting the dots between ground-breaking companies and exceptional talent.