Haystack
← Back to Jobs
Remote
Temporary/Casual
Technology
ER

Cyber Security Architect

ECS Resource Group LtdNewbury, Berkshire🇬🇧United KingdomPosted 14 Sept 2026

Why This Role Stands Out

As a Cyber Security Architect, you'll drive critical security initiatives within a leading telecommunications firm, shaping the future of next-generation 4G/5G technologies in a fully remote, Outside IR35 capacity. This role offers significant growth potential as you collaborate with diverse teams, embedding security best practices across complex cloud, infrastructure, and network environments. If you're a seasoned security professional passionate about innovation and impact, this is an exceptional opportunity to advance your career.

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
Remote
Location
Newbury, Berkshire, United Kingdom
5GAWSEncryptionAzureStakeholder ManagementZero Trust

Job Description

Cyber Security Architect

Remote Outside IR35 Telecoms Sector

We're currently looking for an experienced Cyber Security Architect to join a leading organisation within the telecommunications sector on a fully remote, Outside IR35 contract.

This is an exciting opportunity to play a key role in large-scale transformation programmes spanning cloud, infrastructure, applications and network environments, including next-generation 4G/5G technologies.

As a Cyber Security Architect, you will be responsible for ensuring security is embedded into the design and delivery of business-critical platforms and services. Working closely with architecture, engineering, cloud and infrastructure teams, you will provide security leadership, conduct architecture reviews, perform threat modelling, and define security controls across complex enterprise environments.



Key Responsibilities

  • Define and maintain secure architecture principles, standards and reference architectures.
  • Conduct security architecture and design reviews across cloud, infrastructure, applications and network environments.
  • Perform threat modelling and security risk assessments.
  • Design secure-by-design solutions across cloud, hybrid infrastructure, applications, identity and network environments.
  • Support the implementation of Zero Trust security principles.
  • Provide architectural guidance across AWS and Azure environments.
  • Define security controls covering IAM, PAM, encryption, network segmentation, monitoring and vulnerability management.
  • Work closely with engineering and delivery teams to ensure security requirements are embedded throughout the technology lifecycle.
  • Assess emerging technologies and provide risk-based security recommendations.
  • Engage with senior technical and business stakeholders to influence security decisions across major programmes.


Required Experience

  • Proven experience as a Cyber Security Architect, Security Architect, Lead Security Architect or similar.
  • Strong knowledge of enterprise security architecture and secure-by-design principles.
  • Experience securing AWS and/or Azure environments.
  • Hands-on experience conducting threat modelling and security risk assessments.
  • Strong understanding of IAM, PAM and modern authentication solutions.
  • Experience with network security, segmentation, firewalls, VPNs and secure connectivity.
  • Experience reviewing applications, infrastructure, cloud and network architectures.
  • Strong stakeholder management and communication skills.
  • Knowledge of security frameworks including NIST, ISO 27001 and CIS Controls.


Desirable Experience

  • Telecommunications experience.
  • Exposure to 4G/5G environments, telecoms infrastructure or network security.
  • Zero Trust architecture.
  • Hybrid and multi-cloud security environments.
  • DevSecOps and CI/CD security practices.
  • SABSA, TOGAF, CISSP or CISM certifications.
  • Experience within Critical National Infrastructure (CNI) or highly regulated environments.


What's on Offer

  • Fully remote working.
  • Outside IR35 contract.
  • Opportunity to work on large-scale cloud, security and telecoms transformation programmes.
  • Exposure to cutting-edge 4G/5G and enterprise security projects.
  • Long-term contract potential.
  • Collaborative environment working alongside security, cloud, engineering and architecture specialists.

If you're an experienced Cyber Security Architect looking for your next Outside IR35 contract within a complex telecoms environment, we'd love to hear from you.


ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy.

Similar jobs