16 security architect jobs found in London

Summer-Browning Associates is currently supporting our central government client, who is seeking a Security Architect. This position is for an initial 12-month contract assignment, with the possibility of extension. Location: London The ideal candidate will hold an active security clearance and have a strong background in Security Architecture, along with the following skills and experience: A solid understanding of High-Level Security Architecture (HLD) and a secure-by-design approach. Experience leading security architecture for large-scale cloud hosting (specifically Azure and GCP) in high-threat government Tier 2 secure environments. Extensive knowledge of security architecture, including identity management, device security, workstation protection, cloud hosting, collaboration tools, networking, cryptography, operations, and data governance. Strong understanding of secure DevOps practices, CI/CD controls, and Infrastructure as Code (IaC) hardening. Experience applying...

Technical Security Architect Must have an Active DV Clearance About the Technical Security Architect role We're seeking a highly skilled Technical Security Architect to take the lead on embedding security across the design, development, and integration of complex network infrastructures. Working within an Agile Scrum environment, the Technical Security Architect will play a vital part in shaping secure platforms by applying Secure by Design and NIST principles throughout the delivery lifecycle. What you'll do as a Technical Security Architect Lead the design and delivery of secure infrastructure solutions across large-scale programmes. Integrate security controls and considerations into network architecture, ensuring alignment with Secure by Design methodologies. Act as the security subject matter expert within Agile Scrum teams, collaborating closely with architects, integrators, and testers. Contribute to the development of security-enforcing capabilities across platforms...

Senior Architect – Aviation Sector Location: London/Heathrow Our prestigious architecture client is seeking a talented and experienced Senior Architect to join their dynamic team, focusing on exciting projects within the aviation sector. This is an initial 6-month contract role, with the likelihood of this being extended further or even being made permanent. If you excel in design, technical detailing and specification writing—especially with experience related to Heathrow or Gatwick standards—this is the opportunity for you! About the Role: As a Senior Architect, you will play a crucial role in delivering high-quality, regulated projects within an innovative, multi-disciplinary environment. Your experience in the aviation sector will be invaluable as you collaborate with teams to produce detailed architectural designs and solutions that meet rigorous standards. Why Apply? Work on complex, large-scale projects in the aviation sector Join a collaborative team that values...

Summer-Browning Associates is currently supporting our central government client, who is seeking an Enterprise Architect. This position is for an initial 12-month contract assignment, with the possibility of extension. Location: London The ideal candidate will hold an active security clearance and have a strong background in Enterprise Architecture, along with the following skills and experience: Extensive experience in developing Enterprise Architectural strategies, leading design authorities, and implementing architectural governance. Proven track record in leading enterprise architecture for large-scale cloud hosting, specifically in Azure and GCP, within high-security government Tier 2 environments. In-depth knowledge of cloud architecture, including IAM, identity federation, cryptography, network segmentation, and high-assurance gateways. Proven ability to lead enterprise design across all domains, including Data, Digital, Security, and Technical areas. Proficiency in...

Are you an experienced Architect, available for a 6 month contract and looking to contribute to major aviation infrastructure projects at some of the UK’s busiest airports? Do you have proven experience delivering aviation projects through RIBA Stage 4 with strong technical detailing and specification expertise? Are you confident using Autodesk Revit and comfortable collaborating with multidisciplinary teams on complex airport environments? The Opportunity An established engineering and design consultancy is seeking an experienced Architect with aviation project experience to support a portfolio of airport infrastructure schemes. This contract role offers the chance to work on a variety of high-profile projects while collaborating with multidisciplinary design teams and key aviation stakeholders. We would also welcome applications from these industries Rail infrastructure, major transport infrastructure, defence and security estates, complex public sector buildings, and...

Senior ITSM Architect Must have an Active DV Clearance 4 Day Weeks available An opportunity has arisen for a Senior ITSM Architect to support major digital transformation programmes within secure and regulated environments. This role focuses on designing robust ITSM tooling solutions that enable reliable service delivery across complex estates. You will work within an Agile team, reporting to a Solution Owner, and take ownership of architecture design across a range of ITSM platforms. About the Role - Senior ITSM Architect As a Senior ITSM Architect, you will design, configure, and customise ITSM tooling solutions across cloud, on premises, and hybrid environments. You will produce clear design documentation and ensure solutions align with service management processes and security requirements. You will collaborate with delivery teams to improve service efficiency, resilience, and automation. The role involves shaping scalable tooling architectures that support long term...

VMware Architect Must have an Active DV Clearance Join a leading Defence and National Security programme as a VMware Architect, where you'll guide the technical strategy and delivery of secure, large-scale infrastructure services. This is a high-impact role for a collaborative leader who thrives on driving innovation and delivering mission-critical solutions in complex, secure environments. About the Role - VMware Architect As a VMware Architect, you'll lead the design and technical delivery of core infrastructure components from conception through to live service. You'll collaborate across architecture, engineering, and service teams to ensure cohesive delivery aligned to strategic goals. Responsibilities include defining and governing solution architectures, maintaining design integrity, and ensuring alignment to customer and security requirements. You'll play a central role in shaping roadmaps and driving efficiency across multiple technical workstreams within an Agile...

Network Architect Must have an Active DV Clearance A new opportunity has arisen for a Network Architect to join a secure Defence and National Security programme. You will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect, you will work closely with Programme and Project Managers to produce high quality network designs across programme, live service, and change activities. You will contribute to HLD and LLD documentation for key technologies including Cisco FMC, SSM, FTD, Gigamon HC1 and GigaVUE FM, Juniper LAN and WAN, Endace, NTP, data centre firewalls, and LAN services. The role involves supporting engineering teams, ensuring solutions meet requirements, pass governance, and align with architectural direction. You will provide design input for customer reporting and collaborate with...

Enterprise Architecture Modelling SME Must have an Active DV Clearance Join a high-performing Defence and National Security programme as an Enterprise Architecture Modelling SME, where you will design and manage enterprise architecture models that guide strategic decision making across complex systems. This is an opportunity to work within a multi skilled agile team, shaping how technology, applications, and business processes align to deliver secure and effective outcomes. About the Role - Enterprise Architecture Modelling SME As an Enterprise Architecture Modelling SME, you will create and manage enterprise architecture models across business, application, and technology layers using the ArchiMate standard. You will develop clear viewpoints, diagrams, and capability maps to communicate architectural direction to stakeholders. The role involves conducting impact and gap analyses, scenario modelling, and supporting decision making on proposed changes. You will work closely...

Cyber Security Consultant / Security Assurance SME Summer-Browning Associates is currently supporting our central government client, who is seeking a Cyber Security Consultant for an initial 6 assignments with the option to extend. Location: London / Milton Keynes / Hybrid / Remote The ideal candidate will have an active Security clearance and a strong background in Cyber Security Assurance within a high-threat government environment. Skills and experience. Experience in producing GovAssure and Secure-By-Design assessments, including Risk Assessment Papers, Risk Treatment Plans, Risk Business Cases, and Security Management Plans. Knowledge and experience with security architecture and Security Information and Event Management (SIEM) tools, such as Splunk, Defender, Sentinel, ELK, and Tenable Threat Modelling System solutions. Extensive understanding of cybersecurity threats, attack vectors, vulnerabilities, and security controls. Demonstrable knowledge of cybersecurity...

Senior M365 Engineer (12-Month Contract) Location: London, UK (Local SME for PL Re) Duration: 12 Months Work Mode: 4 Days in Office Role Overview We are seeking a Senior M365 Engineer for a 12-month contract to serve as a Subject Matter Expert (SME) in our London office. You will lead critical migrations, manage local stakeholder governance for our PL Re division, and partner with global engineering on Copilot and new feature adoption. Key Initiatives & Responsibilities Migrations & Projects: Lead Mimecast-to-M365 and home drive-to-OneDrive migrations; manage retention/compliance policy rollouts. Network & Performance: Resolve Teams and network-related issues for London and international offices. Security & Mail Flow: Act as Line 1 security expert (EOP, mail flow rules, routing, encryption) and manage Proofpoint integrations. Architecture & Strategy: Design and implement M365 solutions in a global environment, assist with the enterprise roadmap, and...

On behalf of one of our premier clients, we are seeking a high-caliber Cybersecurity Specialist to join their expanding AI & Data Security team. This is a critical role within our client's AI Security programme, designed for a professional who thrives at the intersection of traditional infrastructure security and the emerging frontier of Generative AI. Our client is at the forefront of AI adoption; you will be the technical lead ensuring that these powerful technologies from AWS Bedrock to Azure OpenAI are implemented with world-class security standards. Key Responsibilities AI Security Architecture: Design and implement secure deployment patterns and guardrails for foundation models across AWS Bedrock, Azure OpenAI, and Microsoft 365. Security Strategy: Develop innovative strategies to enhance application security, specifically addressing risks like prompt injection, data leakage, and insecure output handling. Infrastructure Governance: Translate platform-specific risks...

Job title: Cyber Incident Response Consultant (Contractor) Contract: Six Months (possibility of extension) Location: Basingstoke (X3 days onsite; X2 working remote) Role Overview We are seeking an experienced Cyber Incident Response Consultant to support our cybersecurity function on a contract basis. The consultant will be responsible for collaborating with organisation stakeholders in developing, updating, and enhancing a comprehensive set of tactical and operational cyber incident response documents, including the Incident Response Plan, Communication Plan, Incident Response Playbooks, and Containment & Eradication procedures. This engagement is focused on delivering high-quality, actionable documentation and strengthening the organisation's overall incident response capability. The consultant will work closely with internal stakeholders to ensure alignment with business operations, technology, and regulatory requirements. IR Technical Capability Maturity Assessment *...

Salesforce Developer (Must Have: SC Clearance) Role Description: We are seeking a highly skilled and experienced Salesforce Developer to join the team. The successful candidate will be primarily responsible for the development, configuration, and customization of Salesforce Service Cloud solutions. This role demands a strong technical background, excellent problem-solving abilities, excellent communication skills, and a commitment to delivering high-quality solutions. The developer will work closely with solution and technical architects who will provide the solution design. Key Responsibilities: ·       Develop and implement Salesforce Service Cloud solutions based on provided designs. ·       Customize and configure Service Cloud features, including case management, knowledge base, automation, and workflows. ·       Develop complex Salesforce Flows to automate business processes. ·       Write, test, and deploy Apex code (classes, triggers, and components) to extend...

Our client is a RICS-regulated firm specialising in delivering end-to-end real estate services across London’s finest commercial, residential, retail, and leisure assets. They manage a multi-million-pound portfolio of mixed-use lettable space and boast an impressive development pipeline. Services span acquisition, construction, leasing, marketing, and long-term asset management. What You’ll Do As an M&E Consultant Project Manager, you will lead and provide specialist consultancy on high-profile redevelopment, refurbishment, change-of-use, and fit-out projects across the prestigious portfolio. You will ensure M&E systems (mechanical, electrical, public health, HVAC, lighting, power, fire/alarm, lifts/escalators, BMS, sustainability features) are designed, delivered, commissioned, and optimised to enhance asset value, operational efficiency, energy performance, and occupier satisfaction—fully aligned with the firm’s integrated real estate approach. Key Responsibilities...

Design Manager * Location: Reading * Project Type: MOD Framework – New Build & Refurbishment * Rate: Up to £350 per day DOE We are working with a leading Main Contractor delivering a long-term MOD framework in Reading, offering a secure pipeline of work for a minimum of 3 years, with potential for further extension. The project comprises a combination of new build and refurbishment schemes, forming part of a wider defence infrastructure programme. The new build elements will include a variety of structures such as office buildings, training facilities, storage units, and ancillary buildings, constructed using a mix of steel frame and reinforced concrete (RC) frame construction methods. Refurbishment works will involve upgrades to existing MOD facilities, including internal reconfigurations, M&E enhancements, and fabric repairs within live operational environments. Security Clearance Required Due to the nature of the work, applicants must be eligible to undergo...