Senior Security Engineer

Department: Cyber Services and Capabilities

Location: NLD Rijswijk

Description Do you enjoy turning complex security data into intelligent, automated defence? At Fox-IT (part of NCC Group), you’ll help leading organisations across the Netherlands strengthen their security posture using Microsoft’s security ecosystem.

You’ll design and deliver Sentinel-led detection and response, build smart SOAR automation, and shape XDR strategies that drive real impact. This is hands-on consultancy work in a collaborative environment that values innovation, knowledge sharing, and high-quality delivery.

Key Responsibilities Microsoft Sentinel engineering:

Design, deploy and optimise Sentinel environments, including data connectors, normalisation, analytics rules, UEBA, watchlists, workbooks, and cost-conscious ingestion strategies

Automation & SOAR: Develop and implement pragmatic SOAR playbooks using Logic Apps and Power Automate to reduce manual effort and improve response times

XDR implementation:

Deploy and optimise Microsoft Defender XDR across endpoints, identity, email, and cloud. Align detections with MITRE ATT&CK and relevant threat scenarios

Threat hunting & response: Use KQL for proactive threat hunting, support incident triage, and continuously improve detection use cases in collaboration with SOC teams

Data protection & compliance:

Advise on Microsoft Purview, Information Protection, and DLP, supporting clients from design through to implementation and rollout

Client delivery: Translate technical solutions into business value through roadmaps, reporting, and stakeholder communication

Knowledge sharing: Support and mentor colleagues, contribute to reusable assets, and share best practices within Fox-IT

Business development: Support pre-sales activities, including scoping, proposals, and advising clients on security strategy

Skills, Knowledge & Expertise Strong experience delivering Microsoft Security solutions, including:

• Microsoft Sentinel (essential)
• Microsoft Defender XDR
• SOAR (Logic Apps / Power Automate)
• Purview / DLP
• Solid skills in KQL, scripting (PowerShell), and version control (Git)
• Experience with cost optimisation in Azure (ingestion, retention, table selection)

Proven Consulting Capability:

• Client workshops
• Architecture design
• Stakeholder management
• Clear and structured reporting
• Understanding of security standards and frameworks (ISO 27001, NIST, GDPR) within a cloud context

Language requirement: Professional fluency in Dutch and English (written and spoken)

Nice-to-have Skills:

• Infrastructure as Code (ARM, Bicep, Terraform)
• Entra ID and Conditional Access
• Microsoft Defender for Cloud, Intune
• MITRE ATT&CK mapping
• Incident response experience
• Certifications such as SC-200, SC-100, CISSP, CISM, ISO 27001

Ways of Working:

• Focusing on Clients and Customers.
• Working as One NCC.
• Always Learning.
• Being Inclusive and Respectful.
• Delivering Brilliantly.

Job Benefits What do we offer in return? We have a high-performance culture which is balanced evenly with world-class well-being initiatives and benefits:

• Flexible Working: Balance your work and personal life with our flexible working options.
• Generous Holiday Allowance: Enjoy 25 days of holiday, plus bank holidays, with the option to buy up to 5 additional days of annual leave.
• Medicash & Critical Illness Scheme
• Financial & Investment Benefits: Enjoy peace of mind with our Pension, Life Assurance, and Share Save Scheme.
• Community & Volunteering Programmes: Make a difference in your community with our volunteering opportunities.
• Green Car Scheme: Drive green and save money with our eco-friendly car scheme.
• Cycle Scheme: Stay fit and healthy with our cycle-to-work scheme.
• Special Time Off: Take time off for those big moments in life, like getting married/entering into a civil partnership, becoming a grandparent, and welcoming home a new pet.
• Family Planning: Benefit from our generous maternity and paternity leave, as well as time off and support for those undergoing fertility treatments.

We review every application received and will get in touch if your skills and experience match what we’re looking for. If you don’t hear back from us within 10 days, please don’t be too disappointed – we may keep your CV on our database for any future vacancies and we would encourage you to keep an eye on our career opportunities as there may be other suitable roles.

If you do not want us to retain your details, you can utilise the Manage Your Data tool provided by Pinpoint or contact us directly at: [email protected]. All personal data is held in accordance with the NCC Group Privacy Notice.

We are committed to diversity and flexibility in the workplace. If you require any reasonable adjustments to support you during the application process, please tell us at any stage.

Please note that this role involves mandatory pre-employment background checks due to the nature of the work NCC Group does. To apply, you must be willing and able to undergo the vetting process.