Security Engineer

Who we are

The role

The day-to-day

• Identify, assess, and prioritise security risks across our systems, products, and infrastructure - distinguishing between theoretical concerns and material threats to the business

• Design and implement practical security controls across cloud platforms, applications, products, and data - and guide engineering teams in doing the same

• Develop and apply threat models to surface architectural risks, trust boundary issues, and failure modes before they become incidents

• Partner with engineering, product, and operational teams as a trusted security adviser - providing patterns, guidance, and guardrails rather than one-off approvals or blockers

• Contribute to the detection, investigation, and containment of security incidents, and drive systemic improvements from what we learn

• Reduce manual and reactive security work by building automation, improving tooling, and embedding secure-by-default practices into how we develop and operate systems

• Bring technical depth to assurance activities such as audits, certifications, and customer security reviews - ensuring our controls are real and effective, not just documented

You should apply if you

• 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 - and can demonstrate genuine impact within them

• Think in terms of trust boundaries, failure modes, blast radius, and adversarial behaviour rather than individual vulnerabilities in isolation

• Can translate complex security risk into language that resonates with non-security stakeholders - engineers, product managers, and senior leadership alike - and influence outcomes without relying on authority

• Approach security with a risk-based mindset, making proportionate, well-reasoned decisions under uncertainty and consistently asking whether the work you are doing reduces material risk rather than simply satisfying a compliance requirement

• Have experience working across multiple teams and technical domains simultaneously, maintaining quality and judgement across contexts

• Have a track record of identifying gaps and driving security improvements to resolution, including in ambiguous or loosely scoped problem spaces

Note: We operate in an industry where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

Nice to Have

• Experience working in or alongside regulated, high-assurance, or defence-adjacent environments where security requirements are complex and the consequences of failure are significant

• Hands-on offensive security experience - red teaming, penetration testing, or adversarial simulation - that informs how you approach defensive design and threat modelling

• Familiarity with security considerations specific to AI or machine learning systems, including model integrity, data pipeline security, or adversarial ML concepts

• Experience designing or contributing to security programmes at scale - security champions networks, secure development lifecycle tooling, or organisation-wide risk frameworks

• Background in cloud-native security engineering, particularly across AWS, GCP, or Azure, including infrastructure-as-code, container security, and cloud identity patterns

• Exposure to supply chain security concerns, including dependency management, build pipeline integrity, or third-party component assurance

• Experience operating in environments with classified data, government security frameworks, or cross-domain security requirements

Join Helsing and work with world-leading experts in their fields 

• Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns

• The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact