Unit 452 · restricted
Security and trust, L3
A restricted role in the security and trust family. Restricted roles are advertised by unit number, role family and level only; you will hear more at interview, on a need-to-know basis.
- Level
- L3 Senior
- Leads delivery, raises quality.
- Industry equivalent
- Senior
- Typically 5 to 8 years
- NATO equivalent
- OR-7
- Senior NCO, captain. Indicative, not a rank.
- Hiring window
- First intake
- Q1 to Q3 2027 · Taking applications
What we expect at L3: Leads delivery, raises quality.
Owns substantial outcomes, anticipates risk, and mentors others. Drives alignment across stakeholders and services.
Impact and scope
What you own and how far your decisions reach.
- Owns outcomes that span multiple components, teams, or shifts.
- Defines success metrics and validates impact after launch.
- Identifies systemic issues and proposes durable fixes.
Execution and delivery
How you plan, execute, and ship.
- Leads execution: decomposes work, sequences delivery, and mitigates risk.
- Manages incidents with calm coordination and follow-up.
- Creates operational readiness: documentation, alerts, and training.
Craft and quality
Correctness, maintainability, and professionalism.
- Sets a high bar for correctness, performance, and maintainability.
- Reviews work for architecture, risk, and long-term cost.
- Designs interfaces, SOPs, and workflows that are observable and testable.
Collaboration
How you communicate, align, and work with others.
- Aligns stakeholders with clear narratives and decision records.
- Handles disagreement productively and drives closure.
- Builds strong cross-functional relationships and feedback loops.
Security and trust
How you protect data, users, and the organization.
- Threat models new work and ensures safe defaults.
- Designs for auditability and evidence integrity where needed.
- Raises security concerns early and helps resolve them.
Growth and leadership
How you learn, mentor, and raise the bar.
- Mentors and coaches others with actionable feedback.
- Uplifts team practices: reviews, quality gates, and documentation.
- Builds domain expertise and shares it broadly.
Security and trust
Security engineering, privacy, compliance, governance, and audit readiness.
Typical titles at L3
Senior security engineer | GRC lead
Examples of the work
- Threat modeling and security reviews
- Access control and tenant isolation
- Auditability, evidence integrity, and logging
- Policy-driven governance and compliance posture
Service lens
- Trust is an operational outcome, not a marketing claim.
- Auditability and least privilege are non-negotiable.
- Incident handling needs clear handoffs and post-incident learning.
About restricted roles
Restricted units build and protect our platform. Their roles are advertised by unit number, role family and level only, with no programme, customer or capability detail. Unit numbers are random and carry no meaning.
Before you start there is enhanced screening (identity, right to work, five years of verified history, references), an interview with the unit and a separate security interview. We say "restricted", not "cleared": Ireland has no statutory clearance for private-sector staff.
NATO grade equivalents follow STANAG 2116 and are indicative, to help people who have served read a role. They are not ranks.
Apply
It takes about five minutes. You need your CV. We do not ask for your nationality, date of birth or a photo.
We have your application.
A confirmation is on its way to your inbox. A person on our People team reads every application, and we will email you if we would like to talk.