Principal Security Engineer

This role is ideal for a senior practitioner who enjoys operating at the intersection of software engineering, infrastructure and cross-functional leadership, someone who can take security from strategy through to shipped controls, bring what exists today under one clear owner, and raise the bar as we scale across Europe. What You’ll Be Doing

• Own security across ParkBee and set its direction: define the strategy, standards and roadmap, decide how security is done here, and be accountable for it across engineering, Platform and Ops.
• Run vulnerability management end to end - triage, prioritise and close findings from HackerOne and our scanning, own the bug-bounty and penetration-testing programmes, and lead incident response with root-cause fixes.
• Mature how we build securely: extend the code scanning we already run, add dependency, secret and container scanning where it’s missing, introduce threat modelling at design review, and set gates that catch issues before release.
• Set up proactive security monitoring and threat detection - choose the tooling, define alerting, drive adoption, and cover phishing and brand/domain abuse.
• Partner with the Platform team to keep infrastructure security at a high bar - review the AWS/EKS setup and flag where IAM, network security, IaC or Kubernetes hardening needs strengthening.
• Partner with Ops to secure our on-site technology: ANPR and access-control hardware, network segmentation at locations, and secure installation standards.
• Raise the security bar across the company: run a security-champions and awareness programme, apply frameworks pragmatically (OWASP, ISO 27001, SOC 2, GDPR), and own audits and third-party/vendor risk.
• Govern how we build with and use AI - set the guardrails for AI-assisted development and company-wide AI use, including review of AI-generated code and how AI handles our data.

• 7-10 years of engineering experience, with at least 3 of those focused on security; ideally as a security lead or the sole security owner in an organisation
• Proven experience owning security in a previous role; you’ve set the direction and standards, and been the person trusted to make the security call
• Sharp, risk-based judgement; you can prioritise limited effort across a broad surface and decide what to fix, accept or defer, and stand behind it
• The ability to influence without authority; a track record of getting engineering, infrastructure and operations teams to take security seriously and act
• Deep hands-on application and infrastructure security expertise; secure SDLC, threat modelling, secure code review, and CI/CD security controls (SAST, SCA, secret and container scanning; e.g. SonarQube, Snyk, Trivy)
• Strong cloud security expertise on AWS/EKS; IAM and least-privilege, network security, infrastructure-as-code (Terraform), and Kubernetes/container hardening
• Experience with vulnerability management and incident response, including bug-bounty or penetration-testing programmes
• Experience selecting and rolling out security monitoring and detection tooling (SIEM, EDR, or cloud-native such as AWS GuardDuty)
• A working command of security frameworks (OWASP, NIST, CIS, ISO 27001 or SOC 2) and how to apply them pragmatically
• Nice to have: familiarity with our stack (Typescript, C#/.NET, NodeJS, ReactNative); hardware/IoT or physical-site security (ANPR, access-control hardware); AI/LLM security; fraud and brand-abuse response; certifications such as CISSP, CISM, OSCP, or CKS

We believe a career as a Principal Security Engineer at our company offers exponential growth and learning through an environment that promotes high ownership, accountability, and impact at every level. In addition, we offer a competitive reward package, including:

• Attractive salary based on experience
• An annual allowance of €1,500 for learning and growth in your role
• Numerous growth and development initiatives, training and projects
• Access to professional mental health support with OpenUp
• 25 days holiday plus additional leave schemes
• Daily fresh lunch in the office with small contribution (primarily in-person, with home-working flexibility)
• Easy commute with an NS business card, mileage reimbursement, and access to shared cars when needed
• A generous employer pension scheme and additional long-term performance-based incentives