Technical Architect - Security and Access Control

Methods Business and Digital Technology Limited; United Kingdom; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A technology consulting firm is seeking a Technical Architect specializing in Security and Access Control for complex public sector systems. The role involves designing security architectures, ensuring compliance with regulations, and working with sensitive data. Strong expertise in access control and authorisation models is essential. Ideal candidates will have experience in event-driven systems and excellent stakeholder engagement skills. This position is hybrid and suitable for those eligible for security clearance.

Qualifications

• Experience as a Technical or Security Architect in regulated environments.
• Deep understanding of authorisation and access-control architecture.
• Familiarity with event-driven, distributed platforms.

Responsibilities

• Own and assure security and access-control architecture.
• Design and govern authorisation models in complex systems.
• Architect secure event-driven and CQRS systems.

Skills

Security architecture

Access control

Stakeholder engagement

Data visibility

Job description

Technical Architect - Security & Access Control

Location: UK/Hybrid
Clearance: SC Eligible
Sector: Public Sector/Justice/Regulated Environments

Overview

We are looking for an experienced Technical Architect with strong security and authorisation expertise to support complex, high-risk public sector systems handling sensitive and legally protected data.

This role focuses on access control, data visibility and architectural assurance, going well beyond standard IAM implementations.

Key Responsibilities

• Own and assure security and access‑control architecture across distributed systems.
• Design and govern authorisation models separating identity, role, entitlement, association and decision logic.
• Define boundaries between policy/rule engines and hard system constraints.
• Architect secure event‑driven and CQRS systems, including separate controls for command and query paths.
• Prevent data leakage via search, aggregation, metadata and analytics.
• Design immutable audit trails and traceable access‑decision logging.
• Embed data‑loss prevention into application and data architectures.
• Lead threat modelling and abuse‑case analysis.
• Act as an architectural assurance authority, challenging teams and suppliers where required.

Essential Experience

• Technical or Security Architect experience in regulated public sector environments.
• Deep understanding of authorisation and access‑control architecture.
• Experience with event‑driven, distributed or data‑intensive platforms.
• Strong stakeholder engagement and assurance skills.
• Comfortable working with sensitive or legally restricted data.

Nice to Have

• Justice or law‑enforcement domain experience.
• Exposure to data platforms, analytics or AI‑enabled systems.
• Experience responding to security incidents or pen‑test findings.