Staff Security Engineer

What you will do

• Security Strategy: Support the development of strategic security goals and maintain their alignment with the company mission and priorities.
• Secure by design: Closely collaborate with product engineering teams to co‑create secure, resilient solutions, bringing security considerations into the earliest stages of design.
• Secure by design: Review product architectures and cloud solutions with a critical and curious eye, ensuring security requirements are not only integrated but actively shape the final design.
• Offensive security: Drive internal and external security reviews, penetration tests, and red‑team exercises that challenge assumptions and reveal real‑world attack paths, periodically.
• Offensive security: Lead the selection, coordination, and oversight of external pen testing services and security certifications, transforming their findings into meaningful improvements.
• Projects and initiatives: Drive high‑impact security initiatives from the strategic security plan — from evaluating new approaches to rolling out cutting‑edge tools and capabilities across the organization.
• Customer trust: Investigate and manage customer security concerns with empathy and rigor, turning challenging questions into opportunities to deepen trust.
• Resolve security issues: Dive into complex security findings in products and internal systems, investigate root causes, and guide teams to robust, sustainable remediation.
• Security incidents: Act as a security subject matter expert during security incidents, helping teams to quickly understand, contain, and learn from emerging threats.

Experience and qualifications

• You can demonstrate in‑depth experience with cloud architectures - primarily AWS and distributed networks, and you’re motivated to keep exploring how modern cloud patterns can both strengthen and weaken security.
• You can demonstrate deep experience with application security assessments, including reviewing code and evaluating authentication and authorization designs with a high level of curiosity and rigor.
• You can demonstrate experience assessing and securing AI, Agentic and MCPs, and you are eager to experiment, learn, and define best practices in this fast‑moving space.
• You can demonstrate experience in penetration testing, red‑team engagements, and bug bounty programs, and you enjoy thinking like an attacker to protect what matters most.
• You can demonstrate experience with vulnerability investigation and management, from triage and prioritization to driving remediation and learning across teams.
• You can demonstrate experience with threat modeling using frameworks like STRIDE, and you naturally use these techniques to spark better design discussions.
• You can demonstrate hands-on experience with coding, “vibe‑coding,” and scripting (for example, Python, Bash), and you enjoy building small tools and experiments that make security work faster and smarter.
• Familiarity with Azure, GCP, and Google Workspace is a plus and so is a desire to keep learning new platforms and ecosystems as Sonar evolves.

Additional comments

This role is based in Geneva, Switerzland. We are unable to consider candidates unwilling to be in Geneva, but we are willing to relocate the right candidate.

Benefits

• Flexible comprehensive employee benefit package.
• We encourage usage of our robust time-off allocations. You will receive  23 days of PTO per calendar year (on a pro-rated basis depending on your employment start date), with additional time provided for sickness, life events and holidays.
• We offer an exciting 401(k) plan that has a 4% match, fully vested on day one of participation.
• Generous discretionary Company Growth Bonus, paid annually.  
• Fully paid parking in the heart of downtown Austin, Texas.
• Global workforce with employees in 20+ countries representing 35+ unique nationalities.
• We have an annual kick-off somewhere in the world where we meet to build relationships and goals for the company.
• Monthly catered events, and team events.