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AWS Security Architect - Contract

We are seeking an experienced AWS Security Architect to lead the design and implementation of security controls across our AWS estate. This role will be responsible for establishing secure architecture standards, driving security best practices, and ensuring AWS services are deployed in a scalable, compliant, and resilient manner.

Working closely with Cloud Engineering, Platform, DevOps, and Cyber Security teams, you will provide both strategic direction and hands-on technical guidance to ensure security is embedded throughout the lifecycle of our AWS platforms and applications.

This is a delivery-focused role that combines architecture, engineering, and governance, enabling teams to adopt AWS services securely whilst maintaining agility and operational excellence.

Key Responsibilities

AWS Security Architecture

Define and maintain the security architecture roadmap for AWS cloud environments.Design secure AWS landing zones, account structures, network architectures, and operational security frameworks.Develop AWS security reference architectures, reusable patterns, and guardrails that support consistent deployment across teams.Ensure security controls are embedded into Infrastructure as Code (Terraform, CloudFormation or similar) and platform automation practices.Provide technical leadership on AWS-native security servicesDesign and govern identity, access management, privileged access, encryption, key management, and network segmentation strategies.Review solution architectures and provide security guidance for new AWS workloads and cloud transformation initiatives.Champion Security-by-Design principles across engineering and delivery teams.

DevSecOps & Automation

Embed security controls throughout CI/CD pipelines and cloud delivery processes.Drive the adoption of automated security testing, compliance monitoring, and policy-as-code approaches.Develop and enhance security guardrails to prevent misconfigurations and improve cloud security posture.Work with platform engineering teams to integrate security tooling into deployment pipelines and operational workflows.Promote secure software delivery practices and cloud-native security automation.

Governance, Risk & Compliance

Partner with Cyber Security, Risk, and Cloud Governance teams to align AWS security controls with organisational policies and regulatory requirements.Conduct threat modelling, security architecture reviews, and risk assessments for AWS-hosted solutions.Support compliance initiatives aligned to frameworks such as ISO 27001, CIS AWS Foundations Benchmark, NIST, and SOC 2.Ensure security monitoring, logging, detection, and response capabilities are appropriately designed and implemented across AWS environments.Provide expert advice on cloud security risks and remediation strategies.

Desired Experience

Proven experience as an AWS Security Architect or similar cloud-focused security role.Deep understanding of AWS cloud architecture and AWS security best practices.Strong hands-on experience implementing AWS-native security controls across enterprise-scale environments.Experience designing secure multi-account AWS environments using AWS Organizations and Control Tower.Expertise in AWS IAM, networking, security monitoring, encryption, secrets management, and security operations.Strong knowledge of Infrastructure as Code security principles using Terraform, CloudFormation, or similar technologies.Experience implementing DevSecOps practices and integrating security controls into CI/CD pipelines.Understanding of cloud security frameworks, risk management, and regulatory compliance requirements.

GCS is acting as an Employment Business in relation to this vacancy.

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Role: Zero Trust Network Access Architect

Duration: 6-month rolling Contract

Rate: Up to 700 Inside ir35

Location: London - 2 days a week on site.

We're supporting a major cyber transformation programme and are seeking an experienced Zero Trust Network Access Architect to define and deliver a Zero Trust strategy across a global organisation.

Must have experience leading large-scale enterprise programmes end-to-end.

Key responsibilities:

Define the Zero Trust strategy, roadmap and target architecture.Lead delivery of a global Zero Trust blueprint across organisationDrive adoption across Identity, Endpoint, Network and Cloud security workstreams.Work closely with Entra ID, Conditional Access, PIM, Intune, Defender and Zscaler teams.

To find out more, please apply now or send your CV to [email protected]

GCS is acting as an Employment Business in relation to this vacancy.

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Role: Security Architect (AppSec and Network Security) - B2B

Duration: 6-month rolling contract

Working Pattern: Krakow, Hybrid (handful of days per month)

GCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division. They are now looking for a Security Architect who has extensive experience managing end-to-end solution designs within large-scale transformation programmes with a heavy focus on Network Security and Application Security

Proven experience producing high-level solution designs in line with business requirements.Proven ability to conduct security assessments and threat modelling to inform design decisions.Strong background in cybersecurity, with deep expertise in network security and segmentation across data centers, cloud environments, and containerised platforms.Hands-on experience with technologies such as physical and virtual firewalls and MPLS/eVPNFamiliarity with macro- and micro-segmentation strategiesFinancial Services experience is an advantage

To find out more, please apply now or drop an email with a copy of your CV to [email protected]

GCS is acting as an Employment Business in relation to this vacancy.

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