Infrastructure Security Engineer

We are still at the beginning of our growth journey and are continuously introducing new processes technologies and tools. In this role you will:

• Be a pivotal engineering contributor to the design implementation and operation of security controls and automation across our identity platforms endpoints and core IT services.

• Own key parts of our IdP and access automation stack (e.g. SSO SCIM group‑based access JIT access) ensuring that users get the right access at the right time with strong controls and auditability.

• Design and maintain security monitoring alerting and SIEM integrations that give us real‑time visibility into identity endpoint and SaaS risks.

• Partner with IT Ops Information Security and Infrastructure Engineering to ensure security controls are deeply integrated into operations (incident management change and problem processes) not bolted on.

• Use and champion AI tooling to make security operations more efficient — from alert triage and runbook execution to knowledge retrieval and reporting.

• Help define and improve how we measure the reliability and effectiveness of our security controls (SLIs/SLOs error budgets and dashboards) making risk and performance visible and actionable to stakeholders.

What You Will Do Daily:

Security Monitoring Alerting & SIEM Ownership: Working with the Information Security team design implement and maintain alerting rules dashboards and runbooks across our SIEM and logging platforms with a focus on identity access and SaaS security signals. Continuously tune alerts to reduce noise improve fidelity and align with error budgets and SLOs for critical security and identity services.

Endpoint Defense In Depth: Architect and implement our multilayer endpoint defence systems (e.g. Crowdstrike Cyberark Cloudflare secure browser policies) balancing risk against usability in coordination with the Information Security team.

Identity Platform & Access Automation: Build and maintain automation for our identity platforms (e.g. SSO SCIM provisioning group‑based access policies lifecycle workflows) in partnership with Information Security. Implement guardrails and policy‑as‑code for identity ensuring changes are reviewed tested and auditable before reaching production.

Infrastructure as Code & Security Controls as Code: Use IaC and configuration management (e.g. Terraform Ansible or similar) plus scripting languages (e.g. Python Go) to deploy and manage security tooling integrations and policies. Treat security controls (e.g. logging scanning hardening secret management) as software artifacts that can be versioned tested and rolled back safely.

Observability & Integration with Core IT Operations: Ensure that logging metrics and tracing for security‑relevant systems (IdP VPN endpoint protection critical SaaS) are robust accurate and integrated into our observability stack. Integrate security events and automations with ITSM and incident management workflows enabling fast routing triage and resolution.

Incident Response & Post‑Incident Engineering: Participate in the on‑call rotation for relevant security and identity services. Lead or contribute to post‑incident reviews turning root causes into preventative engineering changes (new alerts automations guardrails or documentation) that reduce MTTR and recurrence.

AI‑Enabled Security Operations: Use AI tooling (e.g. LLM‑based assistants automation platforms) to accelerate alert triage enrichment and investigation while keeping humans in control of decisions. Identify opportunities to embed AI in security and IT operations workflows (e.g. threat intelligence and alert correlation) and help implement these safely and effectively.

The Experience You Will Need:

Security Engineering & Operations Background: Significant hands‑on experience (4–7 years) in security engineering security operations or closely related roles in modern fast‑paced environments (e.g. SaaS enterprise IT cloud‑native infrastructure).

Identity & Access Management Expertise: Practical experience operating IdPs and IAM systems at scale (e.g. Okta Azure AD or similar) including SSO MFA lifecycle management and least‑privilege policies. Experience designing and implementing automated provisioning and deprovisioning (e.g. SCIM HRIS integrations group‑based and role‑based access models).

SIEM Logging & Observability: Proven experience with SIEM and observability platforms (e.g. ELK/EFK Splunk Datadog or similar) including writing and tuning detection rules building dashboards and working with large‑scale log ingestion. Comfort working with SLIs/SLOs and error budgets for critical services and using these to guide priorities for hardening and automation.

Automation & Infrastructure as Code: Strong experience with IaC and configuration management tools (e.g. Terraform CloudFormation Ansible or similar) and with scripting/programming languages (e.g. Python Go or equivalent) to automate security and operational tasks. Track record of converting manual repetitive operational work into reliable automation and self‑service capabilities.

Security Controls Implementation: Experience implementing and operating security controls as code: vulnerability scanning configuration baselines secret management (e.g. HashiCorp Vault) key rotation and certificate management.

Incident Management & Cross‑Functional Collaboration: Demonstrated experience participating in or leading incident response root cause analysis and post‑incident follow‑through in partnership with IT Ops Security and Engineering. Strong communication skills in English able to explain complex security and operational topics to both technical and non‑technical audiences.

AI Fluency: Comfortable using modern AI tooling (e.g. LLM‑based assistants automation frameworks) as part of daily work for analysis content generation and workflow automation. Ability to reason about where AI is and isn’t appropriate in security and operations balancing speed with risk and control.

Why You Will Love It Here:

Our culture and mission set us apart. We have a dynamic work culture that values respect and kindness and embraces the right to fail (and get right back up again!). 

Great people make a great company. We value people skills as much as technical skills and strive to keep things friendly while still being passionate leaders in our domains. 

We have a flexible work policy that includes 3 days in-office and 2 days work-from-home each week for those located near our office locations; some locations such as Dubai India Japan and Australia operate fully remotely.

We have a growth mindset. We love learning and believe continuous education is critical to our success. In an ever-changing industry new skills are necessary and we're happy to help our team acquire them.

As the leader in our field our products and services are as strong as our internal team members.

We embrace transparency with regular meetings cascading messages and updates on the growth and success of our organization.

Benefits of Working with Sonar:

Pension Scheme: 1st Pillar (Unterstützungskasse): Automatic financed by Sonar 3% of gross salary an additional benefit in addition to your salary.

Pension Scheme:2nd Pillar (bAV): Voluntary 15% contribution by Sonar from social security savings.

We encourage usage of our robust time-off allocations with 28 PTO days for our employees based out of the Geneva region plus additional days based on seniority and circumstances.

Sonar recognizes holidays on working calendar days. If the holiday date occurs on a Saturday we will recognize the day on the preceding Friday. If the holiday date occurs on a Sunday we will recognize the day on the following Monday.

Public transport reimbursement of 60% for annual subscription.

Generous discretionary Company Growth Bonus paid annually.  

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.

What We Do

Sonar provides the essential verification layer for the AI-driven development era ensuring all code—whether human-written or AI-generated—is code you can trust.Today AI coding tools are generating explosive volumes of code. This has created an "engineering productivity paradox" : faster code writing doesn't automatically lead to faster safer software delivery. The new bottleneck is verification.Sonar solves this. Integrating code quality and code security into a single platform (SonarQube) Sonar is the foundation for high performance software engineering analyzing over 750 billion lines of code daily to ensure applications are secure reliable and maintainable. As an independent verification platform Sonar enables organizations to securely develop at the speed of AI. We are driven by a deep belief in our people a commitment to excellence and an unwavering dedication to delivery. We operate as a united group where our collective success is the sum of each individual's contributions. Our company culture is driven by the values of CODE: Committed Obsessed Deliberate & Effective. This mindset reflects our culture of creativity collaboration and pride in the work we do. Rooted in the open source community Sonar’s solutions support over 35 programming languages frameworks and infrastructure technologies. Today Sonar is used by 7M+ developers worldwide including ServiceNow Booking.com Deutsche Bank AstraZeneca and Ford Motor Company.Sonar is headquartered in Geneva Switzerland with additional offices in Austin Texas; Bochum Germany; London Singapore and Tokyo. The company is rapidly growing with over 800 employees!Join us in our mission to solve the trillion-dollar challenge of bad code!

Why Work With Us

We are a product-first company with a people-first culture. Every employee has the opportunity to grow and learn. We promote from within provide regular feedback and professional development opportunities value the right to fail along with respect and kindness and work with team members to achieve their full potential.

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