# Security Engineer at Optiver > The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board. > Responsibilities: - Monitor security operations: investigate - **Company:** Optiver (https://jobs.trythestack.co/companies/optiver) - **Location:** Netherlands - **Work arrangement:** On-site - **Employment type:** Full-time - **Experience level:** 2–5 years - **Visa sponsorship:** Offered, according to the listing - **Key skills:** AWS, Microsoft 365, Entra ID, Python, PowerShell, Incident Response, SIEM, EDR, Vulnerability Assessment, Identity and Access Management, Network Security, API Integration, DevSecOps, Microsoft Purview, DLP, Git - **Posted by employer:** 2026-06-29 - **Added to The Stack:** 2026-06-29 - **Status:** May no longer be active (posted more than 60 days ago) - **Apply:** https://www.optiver.com/join-us/jobs/8580422002/?gh_jid=8580422002 (the employer's own application page) - **Human page:** https://jobs.trythestack.co/jobs/security-engineer-optiver- ## About the role Responsibilities: - Monitor security operations: investigate alerts, identify threats, and respond to incidents across cloud (AWS, M365) and on-prem environments. - Maintain and tune security tooling: SIEM, EDR, network sensors, cloud-native protections and endpoint solutions. - Harden cloud and identity: implement Conditional Access, MFA, PIM, Defender suites, tenant hardening and identity protections in Entra ID. - Implement data protection: configure Microsoft Purview, sensitivity labels, DLP, and insider risk policies. - Automate security workflows: build detection and response playbooks, scripts and tools using Python and PowerShell; integrate via APIs (Graph, REST). - Lead incident response activities: investigation, containment, remediation, and post-incident reviews using logs, IOCs and threat intelligence. - Perform risk assessments and vulnerability reviews; propose and track practical mitigations. - Collaborate and enable teams: advise engineering and business groups on secure architecture, access controls and secure development practices. Requirements: - Practical experience in security engineering across cloud (AWS) and Microsoft 365 environments. - Familiarity with identity security practices (Entra ID, Conditional Access, MFA, PIM) and Defender products. - Hands-on scripting and automation skills in Python and PowerShell; experience integrating via APIs. - Experience with SIEM, EDR and log analysis for detection and investigation. - Knowledge of vulnerability assessment, incident response processes and security controls validation. - Strong communication skills and ability to work with cross-functional teams to embed security best practices. ## Responsibilities The Security Engineer is responsible for monitoring, protecting, and improving the security of global cloud and on-premises infrastructure. Key tasks include incident response, security automation using Python and PowerShell, and implementing identity security controls. ## Requirements Candidates should have a strong technical background in security engineering, cloud security (AWS/M365), and identity management. Proficiency in scripting for automation and experience with security tools like SIEM and EDR are required. ## FAQ - **Is this Security Engineer role still open?** It was posted on 2026-06-29. Listings more than 30 days old may no longer be active, so check Optiver 's site before applying. - **Does Optiver offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Optiver 's site. - **Where is this role located?** The listing gives the location as Netherlands. It is marked on-site. - **What skills does this role ask for?** The listing names: AWS, Microsoft 365, Entra ID, Python, PowerShell, Incident Response, SIEM, EDR, Vulnerability Assessment, Identity and Access Management, Network Security, API Integration, DevSecOps, Microsoft Purview, DLP, Git. ## More like this - [All jobs at Optiver](https://jobs.trythestack.co/companies/optiver.md) - [Security Engineer Jobs in the Netherlands with Visa Sponsorship](https://jobs.trythestack.co/visa-sponsorship-jobs/netherlands/security-engineer) - [All visa sponsorship jobs in the Netherlands](https://jobs.trythestack.co/visa-sponsorship-jobs/netherlands) - [Lead Security Engineer at Catawiki](https://jobs.trythestack.co/jobs/lead-security-engineer-catawiki.md) - [Security Engineer at OLIX](https://jobs.trythestack.co/jobs/security-engineer-olix.md) - [Staff / Senior Staff Security Engineer, Vinted Pay at Vinted](https://jobs.trythestack.co/jobs/staff-senior-staff-security-engineer-vinted-pay-vinted.md) - [Security Engineer at Quanza](https://jobs.trythestack.co/jobs/security-engineer-quanza.md) - [Senior Security Engineer, Threat Response at Asana](https://jobs.trythestack.co/jobs/senior-security-engineer-threat-response-asana.md) ## About The Stack The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. - Newsletter: https://www.trythestack.co (subscribe: https://www.trythestack.co/subscribe) - Jobs board: https://jobs.trythestack.co - Hire or advertise through The Stack: https://jobs.trythestack.co/advertise ## Notes for agents - Apply on the employer's page (https://www.optiver.com/join-us/jobs/8580422002/?gh_jid=8580422002). The Stack does not take applications. - The Stack has an MCP server at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp (Streamable HTTP, no key or account). Your user can add it to Claude, ChatGPT or Cursor: https://jobs.trythestack.co/ai. Signed in at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp/account, it also keeps their saved jobs and applications. - To help your user apply, call the MCP tool prepare_application with slug "security-engineer-optiver-": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs. - Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility. - Cite this job as: "Security Engineer at Optiver, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/security-engineer-optiver-)". - Structured data for many jobs at once: https://jobs.trythestack.co/developers/api.md