Senior IAM & Zero Trust Cloud Architect

Vallum Associates; South Yorkshire; On-site; GBP 90,000 - 120,000; Full time

Job summary

Vallum Associates is seeking a Senior Enterprise Architect to lead end-to-end identity and security architecture across cloud and on-premises components. You will shape reference architectures, define integration patterns, and guide engineering teams through implementation and production readiness.

The role focuses on designing scalable, secure identity solutions, PKI and secrets management, and policy-as-code, with leadership responsibilities across governance boards and stakeholders.

Responsibilities

• Produce High Level Designs (HLDs) and Low Level Designs (LLDs) for identity capabilities.
• Define end–to–end Technical Solutions across business, application, data and infrastructure domains.
• Translate business, security and regulatory requirements into technical solutions.
• Develop reference architectures, patterns and design standards for the programme.
• Define integration patterns between identity platforms, applications and infrastructure.
• Design cloud–native solutions for GCP and Kubernetes environments.
• Define authentication, authorisation and federation architectures.
• Design Agent Identity, Human Identity and Workload Identity capabilities.
• Define Zero Trust security architecture and trust boundaries.
• Design API security, service–to–service authentication and workload authentication patterns.
• Develop event–driven integration architectures using messaging and asynchronous processing.
• Design Policy Decision Point (PDP) and Policy Enforcement Point (PEP) architectures using Policy–as–Code.
• Define secrets management, certificate lifecycle and PKI integration patterns.
• Design resilience, disaster recovery and high availability architectures.
• Ensure solutions meet non–functional requirements for security, scalability, resilience and performance.
• Produce architecture decision records (ADRs) and design documentation.
• Support governance through Architecture Review Boards and Design Authorities.
• Perform solution assurance and technical design reviews across supplier deliveries.
• Identify technical risks, assumptions, constraints and dependencies.
• Collaborate with Enterprise Architecture to ensure alignment with strategic architecture.
• Work with Product Owners to refine technical requirements and delivery priorities.
• Support engineering teams throughout implementation, testing and production readiness.
• Mentor engineers and promote engineering best practice.
• Evaluate new technologies and vendor products against programme requirements.
• Contribute to roadmap planning and future–state architecture.

Skills

Enterprise Architecture

Identity and Access Management

Authentication and Authorisation

Zero Trust Architecture

Agent Identity

Workload Identity

Identity Federation

Cloud Architecture (GCP)

Kubernetes

Service Mesh

API Architecture

Event–driven Architecture

Policy–as–Code

PKI & Secrets Management

DevSecOps & CI/CD

High Availability & Resilience

Security Architecture

Architecture Governance

Stakeholder Management

Technical Leadership

Job description

Vallum Associates is seeking a Senior Enterprise Architect to lead end-to-end identity and security architecture across cloud and on-premises components. You will shape reference architectures, define integration patterns, and guide engineering teams through implementation and production readiness.

The role focuses on designing scalable, secure identity solutions, PKI and secrets management, and policy-as-code, with leadership responsibilities across governance boards and stakeholders.