Fulltime vacatures in Leiderdorp

Over de functie

As a Medior Cyber Security Officer within the Security Operations Center (SOC), you are responsible for executing standardized monitoring and incident handling processes that safeguard PostNL's IT landscape. You work in a structured, process-driven environment where consistency, accuracy and discipline are essential. You monitor security alerts, investigate incidents based on predefined procedures and ensure proper registration, escalation and documentation. You contribute to maintaining a stable and reliable operational security posture.

Verantwoordelijkheden

• Operational backbone: You contribute directly to daily cyber resilience.
• Clear structure: Defined processes, playbooks and escalation lines.
• Learning opportunity: Exposure to real-life incidents in a large enterprise environment.
• Team collaboration: Close cooperation with IR specialists, ISOs and IT teams.
• Growth path: Opportunity to develop toward Senior Analyst or specialized security roles.

Wat ga je doen

Within the Cyber Security Office, the SOC team is responsible for detecting, analyzing and responding to security incidents across PostNL's IT environment.

As Medior SOC Officer you will:

• Monitor SIEM dashboards and security tooling.
• Analyze alerts and determine false positives vs. Actual incidents.
• Execute predefined incident response procedures.
• Escalate incidents to senior analysts or domain experts when required.
• Perform standard vulnerability follow-ups and track remediation.
• Maintain accurate documentation and reporting.
• Contribute to shift-based operational continuity.

You work in a repetitive and structured setting, where adherence to procedures, quality of analysis and timely follow-up are critical

Wat vragen wij

• Bachelor degree in IT, Cybersecurity or similar field.
• 3-5 years of experience in SOC, security monitoring or IT operations.
• Experience with SIEM tooling and incident management processes.
• Basic understanding of ISO27001, NIST or similar frameworks.
• Strong analytical skills and attention to detail.
• Comfortable working with repetitive processes and standard workflows.
• Good Dutch & English communication skills.

Wat bieden wij

We support our people with a motivating work environment and enthusiastic colleagues, a commitment to promoting from within and a belief that every employee deserves a productive life outside of work. This position is a rewarding opportunity that allows you to develop professionally while working in a department that offers recognition for those who perform.

• 8% holiday pay and 25 holiday days if you work full-time.
• You can use flexible working hours to determine an optimal work / life balance. We place great value on your vitality.
• Hybrid way of working, enabling you to partly work from home and from our brand new head office, just in 5 minutes' walk from station Den Haag - Hollands Spoor.
• At PostNL, you can use an NS Business Card for business travel and commuting.
• Collective health insurance and good pension through our own PostNL pension fund.
• Good internal training and development opportunities.

Meer informatie

We do a background check during the application. We hereby ask you for a Certificate of Good Conduct (VOG).

We will also check your references and may conduct a tailor-made investigation.

We are looking for new colleagues who want to work with us to build the PostNL of the future. We therefore return mail from recruitment agencies.

As part of the recruitment process, candidates undergo an assessment designed to evaluate their competencies and skills relevant to the position.

Questions about this vacancy? Feel free to contact our recruiter Alyssa Bhoendie at 0613462368 or alyssa.j.bhoendie@postnl.nl.