16 security architect jobs found

DV Cleared Security Architect £700-£800 per day | Outside IR35 | Long-Term Contract | Hampshire (Full-Time Onsite) We are looking for an experienced DV Cleared Security Architect to join a highly classified defence programme, delivering security architecture across complex secure infrastructure, networks and mission-critical platforms. This is an opportunity to work on a long-term programme at the heart of UK national security, helping to design, assure and accredit secure environments that support critical operational capabilities. The Role As the Security Architect, you will be responsible for defining and assuring security architectures across highly secure IT and network environments. Working alongside infrastructure, network and systems engineering teams, you will ensure solutions are secure by design and compliant with MOD and NCSC security standards. You'll play a key role in security assurance, risk management and accreditation activities throughout the project...

Security Architect - Consultant Advisory 12-Month Contract | Outside IR35 | Hybrid (2 days per week on-site) Location: West London / Greater London We are supporting a major UK transport infrastructure organisation undergoing a significant programme of cyber security improvement and technology transformation. We are seeking an experienced Security Architect Consultant to provide advisory support across a complex digital estate, reviewing security architectures, assessing risks, and supporting the delivery of security improvements across critical technology platforms. This role will involve working with technical teams, architects, and senior stakeholders to review existing security controls, improve security design practices, and support the implementation of secure technology solutions across a highly regulated environment. Key Responsibilities Review and refresh existing Cyber Security Impact Assessments (CSIAs) across a portfolio of live digital products and services....

Security Architect +On site in Hampshire +DV cleared role +£700 - £750 a day +Outside IR35 We are seeking a DV Cleared Security Architect to join a Joint Design Team, working on a highly sensitive and mission-critical programme. Reporting directly to the Security Lead, you will play a key role in assuring that Managed Service Provider (MSP) designs and implementations meet the client's stringent security standards and MOD requirements. This is a hands-on assurance and advisory role, operating at both strategic and technical levels within a secure environment. The Role Review and assure high-level and low-level designs produced by MSPs Review MSP security compliance tests, assessments, and evidence Assess and challenge security cases, risks, and design decisions Undertake formal security assessments in line with MOD and client standards Maintain and administer STREAM Provide clear, pragmatic security advice and guidance to the client and stakeholders Skills &...

AWS / Data Platform / Cloud / Security Architect * Remote Working * Outside IR35 * Market Rates * Start Date - September 2026 The Opportunity: Our client is seeking an experienced Data Platform, Cloud or Security Architect to support the design of a strategic Unified Data Platform for a major UK public sector organisation. This is a high-profile architecture engagement that will help shape the future data capabilities of a nationally significant programme. Working alongside senior architecture consultants and client stakeholders, you'll play a key role in refining the target architecture, ensuring alignment with enterprise architecture, security, governance, operational and non-functional requirements, whilst supporting the organisation through internal architecture review and approval processes. This engagement offers the opportunity to influence the design of a modern cloud-native data platform built around AWS, Databricks and Enterprise Data Governance principles. Skills...

Lead Technical Architect - Azure Cloud Migration Location: Remote (UK) Rate: £737 per day (Outside IR35) Duration: Initial 3-month contract with potential extension Clearance: BPSS An exciting opportunity has arisen for an experienced Lead Technical Architect to join a high-profile programme supporting NHS Blood and Transplant (NHSBT) on the migration of a critical national infrastructure application to Microsoft Azure. The successful candidate will provide technical leadership across discovery, design assurance, and migration delivery, ensuring a secure, resilient, and operationally ready cloud solution. Working alongside senior stakeholders, Microsoft specialists, delivery teams, and third-party suppliers, you will act as the technical design authority throughout the cloud migration lifecycle. Essential Skills & Experience Extensive experience leading large-scale Azure cloud migration programmes. Proven background as a Lead Technical Architect within complex...

Job Details - Based in South Wales - Hybrid Working - Paying up to £600 Per Day - Outside IR35 - 6-Month Contract To Start ASAP We're seeking an experienced Cloud Architect to support the design, adoption and evolution of a large-scale cloud environment. This role will focus on Azure architecture, cloud governance and modern deployment practices, helping shape cloud strategy and drive best practice across the organisation. Key Responsibilities: - Lead cloud architecture design and adoption initiatives using the Microsoft Cloud Adoption Framework. - Design and implement scalable, secure Azure cloud solutions. - Develop and maintain Infrastructure as Code using Terraform. - Support CI/CD pipelines and cloud deployment automation. - Work closely with engineering and delivery teams to ensure cloud best practices are embedded. - Contribute to cloud governance, security and operational standards. Essential Skills: - Strong Azure Cloud Architecture experience. - Microsoft...

Service Architect +Current DV Clearance is essential +On site in Hampshire +18 months + +Outside IR35 +£650 - £750 a day We're seeking an experienced Service Architect to join a high-profile Ministry of Defence (MOD) programme on a long-term contract. This is an excellent opportunity to play a key role in designing and delivering secure, resilient, and supportable services within a complex defence environment. Key Responsibilities Design and develop end-to-end service architecture aligned with business and technical requirements. Produce service designs that meet operational, security, and supportability standards. Work closely with technical architects, engineering teams, service management, and stakeholders. Ensure service transition and operational readiness for new and enhanced services. Contribute to service governance, risk management, and continual service improvement. Create and maintain service design documentation, operating models, and support processes....

Service Architect +Current DV Clearance is essential +On site in Basingstoke +18 months + +Outside IR35 +£700 - £750 per day We're seeking an experienced Service Architect to join a high-profile Ministry of Defence (MOD) programme on a long-term contract. This is an excellent opportunity to play a key role in designing and delivering secure, resilient, and supportable services within a complex defence environment. Key Responsibilities Design and develop end-to-end service architecture aligned with business and technical requirements. Produce service designs that meet operational, security, and supportability standards. Work closely with technical architects, engineering teams, service management, and stakeholders. Ensure service transition and operational readiness for new and enhanced services. Contribute to service governance, risk management, and continual service improvement. Create and maintain service design documentation, operating models, and support processes....

Senior Engineer - Identity & Token Security Rate: £550 day Outside IR35 Start Date: ASAP End Date: 18/12/2026 Active SC Clearance Location: Remote/Hybrid (UK-based) Responsibilities Design and implement OAuth 2.0 Token Exchange (RFC 8693) capabilities. Develop secure identity delegation and propagation patterns across distributed services. Implement token down-scoping and audience restriction mechanisms aligned to least-privilege principles. Design secure service-to-service authentication frameworks within zero-trust environments. Build and maintain robust JWT validation and cryptographic trust chains. Integrate applications and services using OpenID Connect (OIDC) standards Essential: OAuth 2.0 & Identity Standards Proven hands-on implementation experience with OAuth 2.0 Token Exchange (RFC 8693). Strong understanding of OpenID Connect (OIDC) core specifications. Expert-level understanding of JWT (RFC 7519). Experience signing, validating and encrypting tokens using JWS...

QA Test Infrastructure Engineer - Cheltenham - Security Clearance Required - £600 P/Day Outside IR35 We're looking for an experienced QA Test Infrastructure Engineer to join a growing team delivering secure, high-impact technology for Defence and National Security customers. This is an opportunity to work on complex technical challenges where quality, resilience and security are critical. Working alongside engineers, architects and DevSecOps specialists, you'll ensure infrastructure is thoroughly tested, validated and ready for deployment into highly secure production environments. What You'll Be Doing As a QA Test Infrastructure Engineer, you'll play a key role in assuring the quality of infrastructure and platforms throughout the delivery lifecycle. Your responsibilities will include: Creating infrastructure-focused test strategies and plans Designing and executing functional, integration, regression, resilience and security testing Validating Infrastructure as Code (IaC)...

£600 per day | Outside IR35 | 6 Month Contract We're supporting a major UK financial services organisation that is investing heavily in AI, automation and next-generation digital capabilities. They are looking for an experienced AI Platform Engineer to help accelerate the adoption of enterprise AI solutions, build reusable capabilities, and deliver production-ready AI and automation services across the business. This is a hands-on engineering role where you'll work closely with business stakeholders, architects, security teams and technology partners to transform AI opportunities into scalable solutions while maintaining strong governance and operational standards. The Role You will: Build and enhance AI-powered applications and automation solutions. Integrate and operationalise Large Language Models including GPT, Claude and Gemini. Develop AI agents, workflow automation and Retrieval-Augmented Generation (RAG) solutions. Design and develop integrations using REST APIs, GraphQL,...

DevOps Engineer * 6-month contract * Remote Working * Outside IR35 * Market Rates (c£425 per day) The Opportunity: Our client is supporting a major UK Government Agency on the delivery and operation of critical cloud-based digital services and is looking to appoint an experienced DevOps Engineer to join an established engineering team. This is an excellent opportunity to work within a modern AWS cloud environment, supporting the deployment, monitoring and continuous improvement of live services used across a high-profile government programme. The successful candidate will be a hands-on DevOps Engineer with strong AWS expertise, excellent troubleshooting skills and experience supporting production environments. You'll work closely with software engineers, architects and client stakeholders to ensure services remain secure, resilient and highly available. Skills and Experience: Essential * Proven commercial experience as a DevOps Engineer, Cloud Engineer or...

Senior DevOps Engineer * 6-month contract * Remote Working * Outside IR35 * Market Rates (c£500 to £525 per day) The Opportunity: Our client is supporting a major UK Government Agency on the delivery and operation of critical cloud-based digital services and is looking to appoint an experienced DevOps Engineer to join an established engineering team. This is an excellent opportunity to work within a modern AWS cloud environment, supporting the deployment, monitoring and continuous improvement of live services used across a high-profile government programme. The successful candidate will be a hands-on DevOps Engineer with strong AWS expertise, excellent troubleshooting skills and experience supporting production environments. You'll work closely with software engineers, architects and client stakeholders to ensure services remain secure, resilient and highly available. Skills and Experience: Essential * Proven commercial experience as a DevOps Engineer, Cloud...

Job Title: SC Cleared Field Solutions Engineer Location: Hybrid/London/Bristol as and when required Duration: 6 months with possible extension Rate: Up to £650 per day Outside IR35 Must be willing and eligible to go through the SC Clearance process If you enjoy combining hands-on technical work with client engagement, this is a brilliant opportunity to support secure infrastructure solutions end-to-end. Our Client is looking for a technical liaison who can translate requirements into clear architectures, run engaging demos and proof-of-concepts, and build trusted relationships across technical and non-technical stakeholder groups. What you'll be doing: Act as the technical bridge between clients and the business, supporting secure infrastructure solutions Deliver product demos and build lab environments to prove solution fit Lead proof-of-concepts (POCs), from scoping through technical guidance and outcomes Provide technical input and security benefits when discussing...

Head of Secure Digital Platform ***MUST HAVE ACTIVE SC CLEARANCE*** Location: Remote/Hybrid (Reading 2-3 days per week) The Opportunity We are seeking an experienced Head of Secure Digital Platform to lead the strategy, delivery and continuous improvement of enterprise digital platforms within a complex, global organisation. Reporting to the Chief Digital & Information Officer, you will lead multidisciplinary technology teams responsible for delivering secure, scalable and resilient platforms that support business operations and digital transformation. Key Responsibilities Develop and deliver the enterprise platform strategy and roadmap. Lead the design, implementation and support of secure digital platforms across cloud and hybrid environments. Build and develop high-performing teams of engineers, architects and product leaders. Collaborate with business stakeholders to translate strategic requirements into technology solutions. Drive platform performance, resilience,...

Senior Project Manager (Real Estate & Workplace) - EMEA Initial 6-month Contract | London (3 days per week) + EMEA travel | £(Apply online only) per day outside IR35 Want to lead some of Europe's largest workplace transformation projects? This is an opportunity to join one of the world's fastest-growing technology businesses, delivering major office developments and workplace programmes across the EMEA region. Over the next 12 months, more than 600,000 sq ft of office space will be delivered, including flagship projects in London, Berlin and Munich. You'll help shape the future workplace experience for thousands of employees while managing high-value, multi-country projects from concept through to handover. You'll take ownership of multiple projects simultaneously, working with architects, consultants, contractors and senior business leaders to ensure projects are delivered on time, within budget and to the highest standards. This is a client-side role where you'll...