Lead Security Architect

Archer · Recruitment agency
Full-timeArchitectureDublin, Ireland · Remote within Ireland · Hybrid
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At a glance

Employment type
Full-time
Workplace
Hybrid · 2 days in office
Category
Architecture

Technologies & skills

Primary technologies

Cloud & infrastructure

What you'll be doing

Lead Security Architect role in Dublin, Ireland, driving enterprise security architecture across cloud, infrastructure, applications, and platforms. Shape security strategy, define standards, and embed secure-by-design principles in large-scale transformation initiatives. Highly hands-on architectural focus.

  • Lead security architecture across enterprise-wide transformation programmes
  • Define and maintain security standards, patterns, reference architectures and design principles
  • Conduct threat modelling, risk assessments and security design reviews
  • Drive Secure-by-Design practices across cloud and application delivery teams
  • Partner with engineering, infrastructure and architecture teams to ensure security requirements are embedded from inception through delivery
  • Provide architectural guidance across cloud, identity, network, data and platform security domains
  • Support security tooling strategy, vendor evaluations and technology roadmaps

Key requirements

Must-have

  • Proven experience as a Security Architect within large enterprise environments
  • Strong cloud security expertise, particularly in AWS
  • Experience designing and reviewing security architecture across cloud, identity, network and data domains
  • Strong understanding of Zero Trust, threat modelling and Secure-by-Design principles
  • Experience producing security designs, reference architectures and architecture documentation (HLDs/LLDs)

Role signals

Technical focus
security architecture
Architecture / system design
Indicated in the listing
Hands-on vs management
Hands-on

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Full job description

Lead Security Architect

AWS | Enterprise Security Architecture

This is an opportunity to join a globally recognised organisation undertaking a large-scale security transformation across cloud, infrastructure, applications and enterprise platforms.

As Lead Security Architect, you will play a key role in shaping the organisation’s security strategy, defining architecture standards, and ensuring security is embedded across major technology initiatives.

You’ll work closely with senior stakeholders, engineering teams, and architecture functions to drive secure-by-design principles and influence security decisions at enterprise scale. This role remains highly hands-on from an architecture perspective and would suit someone who enjoys solving complex security challenges across cloud, identity, network, data and application domains.

The Role

  • Lead security architecture across enterprise-wide transformation programmes

  • Define and maintain security standards, patterns, reference architectures and design principles

  • Conduct threat modelling, risk assessments and security design reviews

  • Drive Secure-by-Design practices across cloud and application delivery teams

  • Partner with engineering, infrastructure and architecture teams to ensure security requirements are embedded from inception through delivery

  • Provide architectural guidance across cloud, identity, network, data and platform security domains

  • Support security tooling strategy, vendor evaluations and technology roadmaps

What you Bring

  • Proven experience as a Security Architect within large enterprise environments

  • Strong cloud security expertise, particularly in AWS

  • AWSExperience designing and reviewing security architecture across cloud, identity, network and data domains

  • Strong understanding of Zero Trust, threat modelling and Secure-by-Design principles

  • Experience producing security designs, reference architectures and architecture documentation (HLDs/LLDs)

Why Join?

  • Enterprise-scale security transformation initiatives

  • Opportunity to shape security strategy and architecture standards

  • Broad exposure across cloud, infrastructure, data, application and emerging technology security

  • High-impact role with significant influence across technology and business teams

  • Up to €125,000 + 25% bonus & strong benefits package

  • Hybrid, 2 days on site.

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Apply NowApply before: 12 Sep 2026