Senior Security Engineering Consultant

Nomios; Basingstoke; On-site; GBP 90,000 - 120,000; Full time

Job summary

Nomios seeks a Senior Security Engineering Consultant to deliver advanced detection and automation across SIEM, XDR and SOAR, working directly with customers. You will own detection as code and define MITRE-aligned use cases while elevating visibility and response maturity within client environments.

This hands-on role blends engineering with advisory duties, enabling customers to evolve their detection capabilities and supporting secure, scalable SOC operations.

Qualifications

• Hands-on experience in SIEM engineering with detection rule development and tuning.
• Experience writing detection logic using KQL or similar query languages.
• Proven experience designing and implementing SOAR automations and playbooks such as Logic Apps, Cortex XSOAR or similar.
• Scripting and automation capability using Python, PowerShell or similar, including working with APIs.

Responsibilities

• Design and deliver detection rulesets across SIEM and XDR platforms.
• Develop and tune detection logic using KQL or equivalent query languages.
• Design detection use cases aligned to MITRE ATT&CK and real-world attack techniques.
• Map customer log sources to detection use cases to assess coverage and identify gaps.
• Design and implement SOAR automations, integrations and response workflows.
• Develop and document customer incident response playbooks aligned to detection outputs.
• Translate threat intelligence and operational learnings into improved detections and automations.
• Deliver detection as code pipelines, including structured use case development and versioning approaches.
• Produce clear technical and customer-facing deliverables, including detection strategies, use case catalogues and coverage assessments.

Skills

SIEM engineering

KQL

SOAR automation

Python / PowerShell

MITRE ATT&CK

XDR/EDR

Microsoft Sentinel

Tools

Logic Apps

Cortex XSOAR

Job description

Nomios' mission is to build a secure and connected future. Organisations across the globe depend on us to help secure and connect their digital infrastructures.

As part of our continued UK growth, we are expanding our Professional Services capability and seeking a Security Engineering Consultant to deliver specialist security engineering and operations consultancy across our customer base.

This is a hands-on technical role within the Security Operations domain, focused on helping customers improve and automate their SOC functions, tooling, and detection capabilities. You will work across a range of technologies and engagements, from SOAR and SIEM implementation through to vulnerability management, exposure management, and process automation.

Your role as Senior Security Engineering Consultant

The Security Engineering Consultant role sits within the Security Operations Team, working directly with the Nomios SOC Engineering team. This is a senior, customer-facing Professional Services role within our Security Engineering function, focused on detection engineering and automation. You will lead the design and delivery of detection and response capabilities across SIEM, XDR and SOAR platforms. This includes building detection rules, developing automations, and creating operational playbooks that support effective SOC outcomes.

A key aspect of the role is ownership of the detection as code approach, ensuring detections and automations are developed, structured and delivered in a consistent and scalable way. Working directly with customers, you will define detection strategies, design use cases aligned to MITRE ATT&CK, and guide improvements in visibility, coverage and response maturity. You will work closely with platform onboarding and engineering teams, supplementing them with specialist expertise in detection engineering and automation, rather than focusing on platform deployment itself.

The role combines hands-on engineering with advisory responsibilities, with a clear focus on delivering high-quality outcomes and enabling customers to operate and evolve their detection capabilities.

Responsibilities

Key responsibilities of the role include:

Deliver

• Design and deliver detection rulesets across SIEM and XDR platforms
• Develop and tune detection logic using KQL or equivalent query languages
• Design detection use cases aligned to MITRE ATT&CK and real-world attack techniques
• Map customer log sources to detection use cases to assess coverage and identify gaps
• Design and implement SOAR automations, integrations and response workflows
• Develop and document customer incident response playbooks aligned to detection outputs
• Translate threat intelligence and operational learnings into improved detections and automations
• Deliver detection as code pipelines, including structured use case development and versioning approaches
• Produce clear technical and customer-facing deliverables, including detection strategies, use case catalogues and coverage assessments

Collaborate

• Work directly with customers as a trusted technical consultant
• Lead workshops covering detection engineering, use case design and SOC maturity
• Guide customers on improving detection coverage and aligning to MITRE ATT&CK
• Clearly explain detection strategies, gaps and recommendations to both technical and non-technical stakeholders
• Work closely with platform onboarding and engineering teams to ensure smooth integration of delivered detections and automations
• Support SOC teams by ensuring delivered outputs are practical, usable and aligned to operational workflows

Improve

• Contribute to the continuous evolution of detection use cases, playbooks and automation patterns
• Support development of reusable detection content and delivery standards
• Contribute to lab work, testing and validation of detection approaches
• Identify gaps in telemetry, logging and enrichment, and provide recommendations to strengthen detection outcomes

Job Requirements

At Nomios, we're looking for #smartpeople who bring #highenergy, curiosity and a strong desire to learn. If you're someone who enjoys working collaboratively, communicates clearly and thrives in a fast-paced environment, this could be the perfect opportunity for you.

Required Skills and Experience

• Strong hands-on experience with SIEM engineering, including developing and tuning detection rules, with Microsoft Sentinel preferred
• Experience writing detection logic using KQL or similar query languages
• Proven experience designing and implementing SOAR automations and playbooks such as Logic Apps, Cortex XSOAR or similar
• Scripting and automation capability using Python, PowerShell or similar, including working with APIs
• Experience designing detection use cases aligned to MITRE ATT&CK
• Strong understanding of detection coverage and how log sources map to the attack lifecycle
• Experience with XDR or EDR platforms such as Microsoft D