Senior Systems & Security Engineer; Windows​/Linux​/Azure

Overview

As part of our Project Team, you'll serve as a trusted Senior System & Security Engineer for our clients—guiding them through onboarding, configuring best‑in‑class security platforms, and ensuring their environments are protected from the start. You'll work with Microsoft Sentinel, Defender XDR, Darktrace, Crowd Strike, Tenable, and more.

• Act as the primary technical point of contact throughout client onboarding projects.
• Provide expert guidance on configuring Microsoft Sentinel and the broader security toolset.
• Define policies, configuration baselines, and best practices for all supported tools and services.
• Keep services running smoothly in production—investigate, remediate, and improve.
• Collaborate with the Project Manager on planning and execution.
• Configure device and service log collection for clients.
• Set up and fine‑tune Microsoft Sentinel, Microsoft Defender XDR, Microsoft Defender for Cloud, vulnerability scanning, Darktrace, Crowd Strike, and other security solutions.
• Investigate and resolve issues when onboarding log sources and services.
• Write and maintain Standard Operating Procedures (SOPs) for onboarding.
• Test log sources and integrations to ensure data quality end to end.
• Integrate tools with each other and with the Senthorus backend.
• Design dashboards, reports, and KPI views tailored to each service.
• Install, maintain, and improve security solutions for internal infrastructure.
• Keep documentation, SOPs, scripts, and procedures up to date.
• Maintain and evolve the Senthorus Microsoft technologies lab (MDE, MDI, Defender for Cloud, Microsoft Sentinel, and more).
• Contribute to internal projects that enhance our platform capabilities.

• 5+ years of experience in IT, with a strong focus on security and infrastructure management.
• Solid hands‑on experience with Microsoft security technologies (Sentinel, Defender suite, Azure).
• Strong knowledge of cloud platforms—Azure and Microsoft 365.
• Proficiency in Microsoft Windows systems and services.
• Solid Unix/Linux operating system experience.
• Experience reviewing, analyzing, and troubleshooting log data.
• Strong network and protocol knowledge (infrastructure fundamentals).
• Excellent client‑facing skills—clear, confident, and professional.
• Sharp analytical and problem‑solving mindset.
• Fluent in English and French (written and spoken).

• Experience with other security solutions (Darktrace, Crowd Strike, Tenable, or similar).
• Strong written and spoken German is a significant advantage.

Senthorus provides organizations with a state‑of‑the‑art solution to increase their security in the cloud and on their internal IT. Our 24/7 operations out of our Security Operations Centers (SOCs) located in Switzerland leverage Blue Voyant's expertise while customers can be confident that all data is maintained and operated securely within Swiss borders—offering peace of mind without sacrificing oversight or effectiveness into cyber defense strategy.