15 senior security architect jobs found in London

Senior Security Architect (Active SC Clearance) Location: Fully Remote (UK) Clearance: Active SC Clearance Required Contract Length: Until February 2027 Rate: Up to £600 per day (Outside IR35) Shape the Security of Critical UK Government Services We are seeking an experienced Senior Security Architect to join a major public sector programme, playing a key role in designing and assuring the security of large-scale digital services operating across cloud environments. This is an excellent opportunity for a senior cyber security professional with strong government experience to provide strategic security leadership, influence architectural direction, and support the secure delivery of business-critical platforms. What You'll Be Doing Providing security architecture leadership throughout the full project lifecycle, from discovery through to service retirement. Advising stakeholders on Secure by Design principles and security best practices. Reviewing and assuring...

SC Cleared Azure Cloud Platform Architect | Outside IR35 | Remote We are looking for an experienced Azure Cloud Platform Architect to support the design and evolution of secure, scalable cloud foundations within a complex central-government environment. This is an opportunity to shape the standards, guardrails and reusable capabilities that allow delivery teams to build and operate services confidently in Azure. The Role You will take ownership of the architectural approach for Azure landing zones and shared platform services, working across cloud, security, infrastructure and engineering teams. The focus will be on creating a well-governed, resilient and secure Azure estate that supports modern digital delivery. Key Responsibilities Design and assure Azure landing-zone architecture across a multi-subscription cloud environment. Define standards for Azure governance, management groups, subscriptions, policy, access and resource organisation. Develop secure patterns for...

SC Cleared Security Architect | Outside IR35 | Remote A security-focused organisation is seeking an experienced Security Architect to support the secure design and assurance of critical digital services. This is a hands-on architecture role, working alongside technical teams and senior stakeholders to embed effective security controls across complex cloud and hybrid environments. The Role You will shape secure technical solutions from early design through to delivery, ensuring architecture decisions are proportionate to risk and meet relevant government security expectations. The role will involve providing clear security direction to engineering and architecture teams, contributing to assurance activity, and helping to resolve complex security challenges across the programme. Key Responsibilities Design and review secure architectures across cloud, on-premise and integrated technology environments. Define pragmatic security controls, patterns and design principles for new and...

Security Architect +6 months + +SC cleared role - current active clearance is essential +Hybrid - London +Sole British national only - due to nature of the project +Outside IR35 +£600 - £700 a day We are seeking an experienced Cyber Security Architect to provide security architecture expertise across complex programmes within a secure, high-assurance environment. The successful candidate will act as a senior security authority, ensuring secure-by-design principles are Embedded throughout the delivery life cycle and providing architectural assurance across new and existing technology solutions. Key Responsibilities Design and assure secure architectures across complex technology environments. Define security architecture principles, standards and design patterns. Embed security into architecture and design governance. Review existing cloud, hybrid and on-premises architectures and identify areas for improvement. Translate cyber threats and risk into...

Cyber Security Architect (eSC) - Enhanced SC Cleared Location: Remote, with occasional travel to London (typically 1-2 days per month) Contract Length: 6 month rolling contract (Outside IR35) Security Clearance: Active Enhanced SC Clearance Required About the Role We are seeking an experienced Cyber Security Architect to join a specialist consultancy supporting critical programmes and secure digital transformation initiatives. Operating at the intersection of cyber security, enterprise architecture, risk management, and technology strategy, you will play a key role in ensuring security is Embedded throughout the delivery lifecycle. You will provide expert security architecture guidance across complex programmes, support the development of secure enterprise architectures, and help organisations strengthen their security posture against evolving cyber threats. This role is ideal for a highly experienced architect with a strong background in secure-by-design principles,...

Cyber Security Architect Location: Remote, with occasional travel to London (typically 1-2 days per month) Contract Length: 6 month rolling contract (Outside IR35) Security Clearance: Active Enhanced SC Clearance Required About the Role We are seeking an experienced Cyber Security Architect to join a specialist consultancy supporting critical programmes and secure digital transformation initiatives. Operating at the intersection of cyber security, enterprise architecture, risk management, and technology strategy, you will play a key role in ensuring security is Embedded throughout the delivery lifecycle. You will provide expert security architecture guidance across complex programmes, support the development of secure enterprise architectures, and help organisations strengthen their security posture against evolving cyber threats. This role is ideal for a highly experienced architect with a strong background in secure-by-design principles, enterprise security...

Security Architect +6 months + +SC cleared role - current active clearance is essential +Hybrid - London +Sole British national only - due to nature of the project +Outside IR35 +£600 - £700 a day We are seeking an experienced Cyber Security Architect to provide security architecture expertise across complex programmes within a secure, high-assurance environment. The successful candidate will act as a senior security authority, ensuring secure-by-design principles are embedded throughout the delivery lifecycle and providing architectural assurance across new and existing technology solutions. Key Responsibilities Design and assure secure architectures across complex technology environments. Define security architecture principles, standards and design patterns. Embed security into architecture and design governance. Review existing cloud, hybrid and on-premises architectures and identify areas for improvement. Translate cyber threats and risk into practical,...

. Boomi Solution Architect Remote | Occasional Travel to London/Telford | 3-Month Contract | Outside IR35 Boomi Solution Architect | Integration & API Platform Programme We are seeking an experienced Boomi Solution Architect to support the adoption and evolution of a strategic enterprise integration platform within a large-scale government environment. This is a client-side architecture role requiring a strong blend of technical expertise, integration architecture leadership, governance, and stakeholder engagement. You will be responsible for driving the adoption of strategic integration capabilities across multiple programmes, ensuring solutions align with enterprise architecture standards and avoid the proliferation of point-to-point integrations. The successful candidate will possess deep expertise across Boomi iPaaS, API Management, Event Streaming, Integration Architecture, and Enterprise Governance , with the ability to influence both technical and non-technical...

Azure Consultant 💰 Circa £550 per day, Outside IR35 📍 Remote, UK based, 6 month contract, immediate start required (Tuesday 15th September) Company & role This role sits within a live Microsoft 365 and Azure transformation programme for an enterprise client. The programme spans tenant migrations, consolidations and separations, alongside modern workplace, security and compliance work across the Microsoft stack. Azure is the backbone of it, with Azure Virtual Desktop and Nerdio central to how the environment gets delivered and managed. You will be the senior technical voice on Azure infrastructure within a wider consulting team, working directly with technical and business stakeholders across a fast moving, multi-workstream delivery. Why This Role Stands Out This is a genuinely urgent, high visibility piece of work, not background BAU. You are brought in to own a specific, technically demanding slice of a live programme. Azure Landing Zones, AVD and...

Security Architect (Active SC Clearance) x 2 Location: Fully Remote (UK) Clearance: Active SC Clearance Required Contract Length: Until February 2027 Rate: Up to £550 per day (Outside IR35) Security Architect We are looking for two Security Architects to support the secure design and delivery of large-scale cloud-based services within a major public sector programme. You'll work across project teams to ensure security is Embedded throughout the development lifecycle, helping teams manage risk, apply security standards, and deliver resilient solutions in complex environments. Key Responsibilities Provide expert security design guidance to delivery and engineering teams. Review solution and product designs to ensure compliance with security standards and best practice. Conduct threat modelling and security risk assessments. Design security controls aligned to organisational risk appetite. Support the deployment of cloud-based services, predominantly within Azure...

Data Architect - SC Cleared Outside IR35: £500 per day Hybrid - circa 1 dpw in London ASAP start - 5 months initial We are recruiting a hands-on Data Architect to develop a trusted enterprise view of a large public-sector technology estate. You will design and implement the underlying data model, defining how information about services, systems and platforms is captured, governed and maintained. The role combines practical delivery with stakeholder engagement across product, architecture, engineering, security, commercial and supplier teams. Role responsibilities Define and implement an enterprise data model covering services, systems, platforms and their relationships. Establish data ownership, stewardship, governance and life cycle principles. Design approaches for collecting, validating and maintaining architecture data. Evaluate enterprise architecture tools and support implementation of the chosen solution. Gather stakeholder requirements and define...

Senior Data Engineer London | Flexible, hybrid working pattern | Outside IR35 | 12-month engagement We're looking for a Senior Data Engineer to shape modern data platforms, solve complex engineering challenges, and deliver data solutions that create business value. You'll join an organisation investing heavily in its data capabilities, working alongside architects, analysts, data scientists, and engineering teams to build production-grade data platforms supporting analytics, AI, and operational decision-making. Why Join? Work on large-scale data and cloud transformation initiatives Influence architecture, engineering standards, and platform strategy Deliver solutions with measurable business impact Join a collaborative team of experienced data professionals Responsibilities Design, build, and maintain scalable data products and pipelines Own solutions from requirements gathering through to deployment and monitoring Develop cloud-native data platforms using...

DevOps/Cloud Engineer (AWS) | Active SC Clearance Essential Day Rate: £600 per day (Outside IR35) Location: Hybrid, London (1 day per week onsite) Contract Length: Initial 6 months Start Date: Immediate/ASAP Security Clearance: Active SC Clearance required We are partnering with a leading government programme to recruit an experienced DevOps/Cloud Engineer to join a highly skilled cloud engineering function. This is an excellent opportunity to contribute to a large-scale digital transformation programme, helping to design, automate and support secure cloud environments that underpin critical public sector services. Working closely with architects, developers and security specialists, you will play a key role in building scalable cloud platforms, enhancing deployment capabilities and driving DevOps best practices across the organisation. Key Responsibilities Design, implement and maintain secure AWS cloud infrastructure. Develop and manage Infrastructure as...

DevOps/Cloud Engineer (AWS) | Active SC Clearance Required Rate: £600 per day (Outside IR35) Location: Hybrid, London (1 day per week onsite) Duration: Initial 6-month contract Start Date: ASAP Clearance: Active SC Clearance (Mandatory) The Opportunity We are supporting a major government programme seeking an experienced DevOps/Cloud Engineer to join a high-performing cloud engineering team. This role will focus on the design, automation and support of secure cloud infrastructure, enabling the delivery of modern digital services at scale. You will work closely with software engineers, architects and security teams to build resilient platforms, improve deployment processes and drive cloud adoption through infrastructure automation and DevOps best practices. Key Responsibilities * Design, build and maintain AWS cloud infrastructure * Develop and manage Infrastructure as Code using Terraform * Build and improve CI/CD pipelines using GitHub Actions and...

DevOps / Cloud Engineer (AWS) | Active SC Clearance Essential Day Rate: £600 per day (Outside IR35) Location: Hybrid, London (1 day per week onsite) Contract Length: Initial 6 months Start Date: Immediate / ASAP Security Clearance: Active SC Clearance required We are partnering with a leading government programme to recruit an experienced DevOps / Cloud Engineer to join a highly skilled cloud engineering function. This is an excellent opportunity to contribute to a large-scale digital transformation programme, helping to design, automate and support secure cloud environments that underpin critical public sector services. Working closely with architects, developers and security specialists, you will play a key role in building scalable cloud platforms, enhancing deployment capabilities and driving DevOps best practices across the organisation. Key Responsibilities Design, implement and maintain secure AWS cloud infrastructure. Develop and manage Infrastructure as Code (IaC)...