Optiver · Amsterdam, North Holland, Netherlands
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We are seeking a motivated, hands-on Security Engineer to join our security team. In this role, you will help protect, monitor, and continuously improve the security of our global systems — including cloud (AWS and M365) and on-premises infrastructure. You’ll play a central part in risk mitigation, incident response, automation of security operations, and embedding security best practices across our organisation.
What you'll do
As a Security Engineer at Optiver, you'll be responsible for monitoring, protecting, and continuously improving the security of our global systems and infrastructure. At Optiver, this means proactive threat prevention, swift identification of security risks, and rapid response to incidents to ensure our systems remain secure under all circumstances. An engineering mindset, attention to detail, and a preference for pragmatic solutions are essential to keeping our systems operating.
In practice, this means you will work on a range of activities in collaboration with the global security team on activities such as:
Security Operations & Monitoring
Monitor daily security operations, identify threats, investigate alerts, and respond to incidents across cloud and on-prem environments.
Maintain and tune security tools across AWS, Microsoft 365, endpoints, and network infrastructure.
Cloud & Identity Security
Strengthen Microsoft 365 and Entra ID security through Conditional Access, MFA, PIM, Defender for Endpoint/Identity/O365, and tenant configuration hardening.
Implement and support data protection capabilities, including Microsoft Purview, sensitivity labels, DLP, and insider risk policies.
Automation & Engineering
Build and maintain security automation using Python and PowerShell, with a strong focus on reducing manual processes and improving detection and response.
Integrate systems using APIs (Graph API, REST, etc) to enhance security workflows.
Work with AI and our AI engineering teams to ensure the security of the environment
Risk Assessment & Security Controls
Perform vulnerability assessments, review system configurations, and develop practical mitigation strategies.
Conduct security reviews of systems, cloud workloads, and new technologies.
Ensuring and assuring our security controls are effective and working as intended
Incident Response
Lead or contribute to incident response activities including investigation, containment, communication, and remediation.
Analyse logs, IOCs, and behavior patterns using SIEM tools and threat intelligence.
Collaboration & Enablement
Work closely with engineering, technology, and business teams to embed security best practices.
Provide guidance on secure architecture, access controls, and identity management.
Support user education and uplift security behaviors across the business.
What you'll get
You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Motivated by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle the toughest problems in the financial markets.
In addition, you’ll receive:
Who you are
You are a hands-on security engineer with strong technical fundamentals and a passion for building secure, scalable systems. You may come from a background in Security Engineering, Security Operations, Cloud Security, Identity & Access Management, DevSecOps, or a related field.
You likely bring experience in several of the following areas:
Beyond your technical experience, you:
We recognise that great candidates may not meet every qualification listed above. If you're excited about the role and believe you can contribute, we encourage you to apply.
Who we are
At Optiver, our mission is to improve the market by injecting liquidity, providing accurate pricing, increasing transparency and stabilising the market no matter the conditions. With a focus on continuous improvement, we prioritise safeguarding the health and efficiency of the markets for all participants. As one of the largest market making institutions, we are a respected partner on 100+ exchanges across the globe.
Our differences are our edge. Optiver does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, physical or mental disability, or other legally protected characteristics.
How to apply
Apply directly via the form below. If you have any questions feel free to contact our Recruitment team via our recruitment inquiry form.
Please note:
Diversity statement
Optiver is committed to diversity and inclusion.