Security Engineer

Security Engineering at Helsing sits at the intersection of deep technical expertise, adversarial thinking, and real-world impact. As a Junior Security Engineer, you will join a team that works across the full breadth of technology - from cloud infrastructure to applications, identity systems, and products - identifying and reducing the security risks that matter most. You will be paired with an experienced senior engineer as a dedicated mentor, work on real problems from day one, and be supported with a structured development path.

What you'll do

• Work alongside senior security engineers on threat modelling and security reviews - learning to identify architectural risks, trust boundary issues, and failure modes
• Build and improve security tooling and automation - writing code that reduces manual security work and embeds secure-by-default practices into engineering workflows
• Contribute to security testing across systems and products, including hands-on technical testing under supervision
• Own well-defined security workstreams, progressively taking on more scope and autonomy as your skills develop
• Observe and learn from security incidents through ride-alongs with experienced engineers, progressing to hands-on incident response roles as you develop
• Help maintain and improve security documentation, runbooks, and internal guidance
• Support assurance activities such as audits and certifications alongside experienced team members

What you'll need

• You have built non-trivial software - projects that demonstrate genuine engineering ability, not just framework usage (e.g. security tools, automation pipelines, network utilities, infrastructure-as-code, compilers, or embedded systems)
• You can reason about how systems work below the abstraction layer you operate at - memory, networking, operating systems, or hardware
• You have a track record of self-directed security interest - CTF participation, vulnerability research, protocol analysis, bug bounties, or open-source security contributions
• You have shown initiative and ownership in student or early-career contexts - leading a project, driving a decision, or building something beyond what was asked of you

Nice to have

• Participation in a selective security programme - examples include CyberFirst, GCHQ summer schemes, NCSC-sponsored bursaries, BSI programmes, CSAW, military technical roles, competitive research placements, or funded PhD positions
• Hands-on offensive security experience through CTFs, personal projects, or structured programmes
• Familiarity with cloud platforms (AWS, GCP, or Azure) and infrastructure-as-code concepts
• Exposure to AI or machine learning systems and an interest in their security implications
• Experience with reverse engineering, binary analysis, or low-level systems programming

What they offer

• Competitive salary and VSOP options
• Relocation support: up to EUR 2,500 and 4 weeks temporary accommodation
• Learning: EUR 500/GBP 450 yearly allowance
• Health and wellness: gym membership and mental health support (Nilo.health)
• Enhanced parental leave: 22 weeks fully paid for primary caregivers and 6 weeks for secondary caregivers
• Structured development programme with dedicated senior mentor and clear milestones at 3, 6, and 12 months