Senior SOC Analyst (SIEM Focus)

Senior SOC Analyst (DV Cleared)

Contract - 6 Months (up to £750 inside IR35)

Location: Corsham (3 days onsite)

Sector: Defence & National Security

We are working with a leading organisation in the defence and national security sector who are looking to engage a DV-cleared Senior SOC Analyst to support a critical cyber security programme.

This is a high impact contract where you will play a key role in maintaining and enhancing security operations within a highly secure environment

The Role

You will operate within a live Security Operations environment, supporting both day-to day cyber operations and the continuous improvement of detection capability and SOC tooling.

This is a hands-on role with a strong focus on incident response, SIEM optimisation, and threat detection.

Key Responsibilities

Monitor, investigate and respond to security incidents across secure environments

Develop and tune SIEM detection rules and correlation logic

Support SIEM and SOAR tooling optimisation and automation

Integrate and onboard log sources to improve visibility across systems

Conduct threat analysis, including TTPs and IOCs

Carry out network and host-based forensic investigations

Support vulnerability management and reporting activities

Work closely with internal stakeholders to ensure effective cyber defence

What We're Looking For

Active DV clearance (essential)

Strong experience in SOC / Cyber Security Operations

Hands-on experience with SIEM platforms (e.g. Splunk, Sentinel, Elastic)

Ability to develop and tune detection rules and alerts

Experience with incident response and threat analysis

Knowledge of MITRE ATT&CK, IOCs, and TTPs

Familiarity with SOAR tools and automation

Scripting experience (e.g. Python, PowerShell, Bash) is beneficialWhy Apply?

Opportunity to work on a mission-critical defence programme

Gain exposure to advanced cyber capabilities in secure environments

Immediate impact role with high visibility and responsibility

Work alongside experienced teams within a well-established SOC function

If you are a DV-cleared Senior SOC Analyst with strong SIEM and detection experience, and you're looking for your next contract in a secure environment, we'd be keen to speak.

👉 Apply now or get in touch for more details

Claire Thomas - (phone number removed)