Senior Security Engineer

Title: Senior Security Engineer Location: NLD Rijswijk / hybrid

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.

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

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.

• A good salary that matches the things you have already done and will do;

• Flexible working hours and flexibility in working from home or at the office, allowing you to optimally combine your private life with your work;

• A favorable pension scheme, 26 vacation days (+4 mandatory days off), and 8% holiday pay with a full-time contract;

• Plenty of development opportunities: you can gain and share knowledge through training, TechTalks, events, and our own Fox Academy;

• A laptop and business phone. If you use your own phone, you will receive a reimbursement of up to €25 per month;

• A remote work allowance (for hybrid working);

• A performance bonus and profit sharing because we value your effort;

• When we work in the office, we gather every day for a delicious lunch.