SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Helsing is a defence AI company on a mission to protect democracies by achieving technological leadership in AI while maintaining ethical standards and democratic control. As a Senior Security Engineer, you will be a core technical leader responsible for identifying, assessing, and reducing security risks across the full breadth of Helsing's technology stack—from cloud infrastructure and applications to identity systems and products.
Your day-to-day work will span multiple dimensions of security engineering. You'll identify and prioritize security risks across systems and infrastructure, distinguishing between theoretical concerns and material threats to the business. You'll design and implement practical security controls across cloud platforms, applications, and data, while guiding engineering teams in doing the same. You'll develop threat models to surface architectural risks, trust boundary issues, and failure modes before they become incidents.
You'll partner with engineering, product, and operational teams as a trusted security adviser, providing patterns, guidance, and guardrails rather than one-off approvals. You'll contribute to detection, investigation, and containment of security incidents, and drive systemic improvements from lessons learned. You'll reduce manual and reactive security work by building automation, improving tooling, and embedding secure-by-default practices into development and operations. You'll also bring technical depth to assurance activities such as audits, certifications, and customer security reviews, ensuring controls are real and effective.
You should have deep hands-on expertise in one or two security domains—such as application security, cloud security, identity and access management, cryptography, detection and response, or platform security—with demonstrated genuine impact. You think in terms of trust boundaries, failure modes, blast radius, and adversarial behaviour rather than isolated vulnerabilities. You can translate complex security risk into language that resonates with non-security stakeholders and influence outcomes without relying on authority. You approach security with a risk-based mindset, making proportionate, well-reasoned decisions under uncertainty.
