26 security architect jobs found in London

Role: Lead Cyber Security Engineer Remote SC: Yes Start: 13/7 Finish 4/1 Rate: £600 SC Clearance is needed You will - Establish a secure, scalable, and well-governed developer tooling landscape, with an initial focus on the GitHub Enterprise estate, alongside improved governance and management of core tools such as PagerDuty, Docker (and more) - Deliver infrastructure-as-code–managed toolchain, enabling repeatable configuration, improved auditability of changes, and effective drift detection across GitHub and broader developer tooling - Contribute to a continuously improving developer platform, using operational insight and developer feedback (including experience surveys) to evolve tooling, standards, patterns, guidance and governance over time - Identify and mitigate security risks in tool configuration, integration, and usage patterns, reducing the likelihood of misconfiguration and privilege misuse. - Ensure secure-by-default configuration, patterns and guardrails are...

Security Architect - AWS - Active Security Clearance Required 9 month contract + Inside IR35: £600 - £650 p/d Hybrid - 1x a month in London We're looking for a Security Architect with strong technical instincts and a proactive mindset to help shape secure solutions across digital services. Working within a collaborative and multidisciplinary team, you'll provide practical security guidance, contribute to the design of secure systems, and help ensure that risks are appropriately identified, communicated, and mitigated. This is a hands-on role ideal for someone looking to deepen their skillset within a high-profile, public sector programme. What You'll Be Doing Designing secure system architectures that balance business objectives with risk Advising delivery teams on security best practice throughout the development lifecycle Supporting the development of reusable security architecture patterns Reviewing technical solutions and offering constructive security input Communicating...

Location: London, 4 days a week on site Outside IR35 contract - (Apply online only) a day We are looking for an SC, preferably DV cleared self-motivated and experienced Security Architect to lead in bringing enhanced and new services into what is key government asset. Working within a specialist services company you will drive and/or create the necessary artefacts to help the client organisation deliver rapid change. You will have excellent interpersonal skills and a pragmatic approach to getting change through delivered successfully through the internal Security Governance group. Key Responsibilities: The ideal candidate will have come from a strong technical background, and have an understanding of attack vectors for high threat environments, across both proprietary and open-source technology stacks. You will advise and enable technical teams to make security decisions and provide advice and guidance, ensuring the effective use of common tools and patterns. You will have a...

SC Cleared Security Architect (SC Clearance Required) Horsham - 12 Month initial £400 - £500 Inside IR35 Are you an Security Architect looking for a fully remote position for the UK Government, where you will take part in cutting edge development projects within an autonomous and varied role? On Offer is the chance for an Security Architect to become a high ranking member of an elite IT Architecture team, taking part in varied projects and leading the charge in innovation and development of infrastructure technologies used by the university. This is a long term greenfield project for the UK Cabinet Office, working with other very senior Architects and Developers. In this role you will be working with technical subject matter experts to generate technology roadmaps to the requirements of the university. You will also assist in the incorporation of new networking and cloud technologies into the university's enterprise architecture team. The Ideal Security Architect will have...

DV Cleared Security Architect £650-£700 per day | Outside IR35 Basingstoke | 5 Days On Site Active DV Clearance Required We're supporting a major Defence programme and are looking to engage an experienced DV Cleared Security Architect to join a high-assurance environment delivering critical capabilities. This is an opportunity to work on complex, security-sensitive systems within a programme operating at the forefront of UK Defence. Key Requirements: Active UK DV Clearance Sole UK National (UKEO requirements apply) Proven Security Architecture experience within MOD or wider Defence environments Strong understanding of Secure by Design principles and risk-based security approaches Experience producing and maintaining security architecture artefacts and documentation Ability to engage confidently with technical teams, programme stakeholders and senior leadership Familiarity with secure systems engineering, accreditation processes and operating within highly regulated...

IAM Architect – 6-month contract  My Customer seeking an experienced Identity and Access Management (IdAM) Architect to lead the design, implementation, and enhancement of CyberArk Privileged Access Management (PAM) and identity governance solutions across a complex enterprise environment. The successful candidate will provide technical leadership throughout the project lifecycle, working closely with project, security, architecture, and operational teams to deliver secure and scalable identity services. Key skills required from the IAM Architect: Extensive hands-on experience designing, deploying, and supporting CyberArk PAM solutions within large-scale enterprise environments. Strong background in Identity and Access Management, including Privileged Access Management (PAM), Identity Governance and Administration (IGA), and Authentication, Authorisation and Accounting (AAA) frameworks. Proven ability to create, present, and manage architectural and technical design...

Infrastructure Tester x2 Location: Hampshire (Onsite) Duration: 18 Months Clearance: DV Clearance required (Active) Rate: £450 - £550 a day per day - Outside IR35 We are seeking an experienced DV Cleared Infrastructure Tester to join a major secure government programme based on-site in Basingstoke. This is a hands-on testing role focused on validating and assuring complex Zero Trust Infrastructure environments supporting mission-critical services. Working within a highly secure delivery team, you will be responsible for planning, executing and reporting infrastructure testing activities across a range of technologies, ensuring solutions are robust, secure and fit for operational deployment. Key Responsibilities Design and execute infrastructure test plans, test cases and test scripts. Validate Zero Trust architecture components and supporting infrastructure. Perform end-to-end testing across servers, networks, security controls and integrations. Verify deployments,...

Infrastructure Tester x2 Location: Hampshire (Onsite) Duration: 18 Months Clearance: DV Clearance required (Active) Rate: £450 - £550 a day per day - Outside IR35 We are seeking an experienced DV Cleared Infrastructure Tester to join a major secure government programme based on-site in Basingstoke. This is a hands-on testing role focused on validating and assuring complex Zero Trust Infrastructure environments supporting mission-critical services. Working within a highly secure delivery team, you will be responsible for planning, executing and reporting infrastructure testing activities across a range of technologies, ensuring solutions are robust, secure and fit for operational deployment. Key Responsibilities Design and execute infrastructure test plans, test cases and test scripts. Validate Zero Trust architecture components and supporting infrastructure. Perform end-to-end testing across servers, networks, security controls and integrations. Verify deployments,...

Cloud Solution Architect (Cloud / Integration) Hybrid working: 3 days onsite in London and 2 days remote Pay rate: £650 per day Outside IR35 Contract with strong likelihood of extension Active SC required Overview We are seeking an experienced Cloud Solution Architect to lead the design and delivery of cloud-based solutions within a complex and secure environment. The role focuses on defining end-to-end architectures across cloud infrastructure, platform services, and integration layers, ensuring solutions are scalable, secure, and aligned with enterprise standards. Key Responsibilities Define end-to-end solution architecture across cloud, platform, and integration domains Translate business and technical requirements into scalable solution designs Produce and govern high- and low-level designs (HLD/LLD) Ensure alignment with security, compliance, and architectural standards Provide technical leadership and guidance to engineering teams Drive best practices across cloud...

Adecco is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Are you passionate about transforming enterprise data into meaningful insights? Do you thrive in innovative environments where you can shape the future of data architecture? If so, our client is looking for you! Join us as a Semantic Graph & Ontology Architect and play a pivotal role in developing a Smart Data Fabric that unifies various data sources like Snowflake, SharePoint, and ERP systems, all while enhancing AI capabilities through a sophisticated semantic, graph-native foundation. Role: Semantic Graph & Ontology Architect Duration: 6 Months (extension options) Location:...

Senior Network Architect Location: South West London (Hybrid - 2-3 days onsite) Rate: £650 per day (Umbrella, Inside IR35) Contract: Long-term Contract Security Clearance: DV Clearance essential A leading organisation operating within a highly secure environment is seeking an experienced Senior Network Architect to join its architecture team. This is an architecture-led role focused on the design, governance and assurance of enterprise network solutions rather than hands-on engineering. You will be responsible for producing and presenting network designs, providing technical leadership, and ensuring solutions align with strategic and security requirements. Key Responsibilities Own and develop network architecture designs and documentation. Act as a Design Authority, reviewing and assuring project solutions. Work closely with stakeholders to deliver secure and resilient infrastructure. Contribute to architecture governance and technical strategy. Provide expert guidance...

On behalf of our client, we are seeking to recruit an Electrical Architect on an initial 6 - month contract. As the Electrical Architect you will be responsible in all aspects of missile development, from the early concept studies to series production and in-service support Role: Electrical Architect Pay: £60 - £85 per hour Umbrella Location: Stevenage, Bristol or Bolton Contract: Monday- Friday, 37 Hours per week, 6 Months Contract IR35 Status: Inside Security Clearance: SC will be required however can start on BPSS Essential Responsibilities Own the electrical architecture and requirements for missile/launcher systems. Define interfaces between subsystems (ICDs, characteristics, constraints). Build the power architecture (budgets, profiles, distribution). Define data comms/processing architecture and system interconnects. Set EMC, bonding, grounding, screening and signal safety requirements. Support integration, test, compatibility checks, qualification and...

Enterprise Architect - Essex Fixed Term Contract / Secondment (12 months, with potential extension) Salary: Up to £80,746 per annum Location: Chelmsford (Anywhere Worker) Help Shape the Future of Local Government in Essex Essex Digital Service is playing a leading role in Local Government Reorganisation (LGR), creating the digital foundations, shared capabilities and technology landscape that will support more integrated, efficient and citizen-focused public services across Essex. We are seeking an experienced Enterprise Architect to lead the development of cross-organisational technology architectures, digital capabilities and system designs that enable collaboration, interoperability and transformation across councils and partner organisations. Key Responsibilities Provide strategic architecture advice to senior leaders and partners. Develop future-state technology, data and digital architectures supporting LGR. Review and assure digital and technology proposals for...

Infrastructure Architect Wokingham / Hybrid - 2 days work from home 4 months initial contract £559 per day inside IR35 Active SC clearance We are seeking an experienced DNS Architect to join a growing infrastructure and cloud technology team. This is an exciting opportunity to take ownership of the design, security, and evolution of critical DNS services that support large-scale enterprise and cloud environments. As the DNS subject matter expert, you will be responsible for defining architecture standards, driving automation, enhancing security, and ensuring the resilience and performance of core naming services. You will work closely with network, cloud, infrastructure, and security teams to deliver scalable and secure DNS solutions that support business-critical operations. What You'll Be Doing Designing and implementing enterprise-scale DNS architectures across on-premises, hybrid, and cloud environments. Managing and optimising DNS services, including zones,...

SC Cleared Data Architect (SC Clearance Required) Horsham - 12 Month initial £500 - £600 Inside IR35 Are you an Data Architect looking for a fully remote position for the UK Government, where you will take part in cutting edge development projects within an autonomous and varied role? On offer is the chance for an Data Architect to become a high ranking member of an elite IT Architecture team, taking part in varied projects and leading the charge in innovation and development of infrastructure technologies used by the university. This is a long term greenfield project for the UK Cabinet Office, working with other very senior Architects and Developers. In this role you will be working with technical subject matter experts to generate technology roadmaps to the requirements of the institute. You will also assist in the incorporation of new networking and cloud technologies into the enterprise architecture team. The Ideal Data Architect will have industry experience in a...

Network IT is recruiting for an experienced Senior Network Architect reporting directly to the CTO at our client, who is about to undergo enterprise network and datacentre transformation.   This is a key role leading the architecture for a major new programme, with responsibility for designing and governing secure, resilient, and scalable network solutions across complex enterprise environments.   You will own end-to-end network architecture across physical and logical domains, including LAN, WAN, SD-WAN, cloud networking, firewalls, load balancers, VPNs, and network security services.   Working closely with senior stakeholders, delivery teams, and suppliers, you will ensure solutions align with business objectives, security requirements, and enterprise architecture standards.   Please note this is a DV Cleared role. We can only accept applications from British Citizens.   Role: Senior Network Architect  Duration: 9 Months Rate: £790 per day Status: Inside IR35 Location: Milton...

Azure Cloud Security Engineer (Apply online only) P/D INSIDE IR35 REMOTE 6 MONTHS Role Overview The Azure Cloud Security Engineer will support the design, implementation, and assurance of secure Azure cloud environments aligned to client security policies and regulatory standards. Key Responsibilities Implement and maintain Azure cloud security controls Support security hardening and compliance activities Configure identity, access, and security monitoring capabilities Support PEN Tests and remediation activities Work with platform and networking teams to ensure secure cloud design Monitor and respond to security issues and vulnerabilities Core Skills & Experience Azure Security Centre / Defender Identity and Access Management Key Vault and RBAC Cloud security architecture Security monitoring and compliance Secure Azure design principles

Cyber Security Engineer - 6 Month Contract - No Sponsorship available Job Description This Cyber Security Engineer role sits within the Information Security function and focuses on designing, implementing, and continuously improving security controls across infrastructure, applications, and cloud environments. You will lead cyber security project deliverables, maintain and enhance existing cyber tools, and roll out new features and capabilities across banking and securities businesses under a dual-hat arrangement. Operating with equal authority across both entities, you will make independent, risk-based decisions aligned to a shared governance framework, working closely with engineering and operations teams to embed robust security into all technology solutions. Responsibilities Design, implement, and enhance enterprise security solutions across cloud, network, and endpoint environments. Lead security architecture reviews to ensure solutions align with security standards,...

Key Responsibilities: Manage and grow relationships with strategic enterprise clients. Drive adoption and expansion of digital transformation solutions. Develop and execute sales strategies to generate new revenue. Engage with C-level stakeholders and business leaders. Collaborate with Customer Success, Solution Consultants, Enterprise Architects, Marketing, and Partner teams. Lead complex enterprise sales cycles and negotiate high-value deals.Key Requirements: Proven Enterprise Software sales experience. Track record of securing multi-million-pound, multi-year contracts. Experience selling to C-level executives, ideally CMOs and Digital Leaders. Strong solution-selling and consultative sales skills. Excellent communication, presentation, and negotiation abilities. Consistent achievement of sales targets and revenue growth. Salesforce experince is desireable GCS is acting as an Employment Business in relation to this vacancy

Data Engineer Location: Remote (UK-based preferred, if applicable) Employment Type: Full-Time, 6-Month Contract About the Role We are seeking a talented and motivated Data Engineer to join a global technology and engineering organisation at the forefront of digital transformation, industrial innovation, and intelligent infrastructure. This is a fully remote 6-month contract role, offering the opportunity to work on cutting-edge data platforms and knowledge graph solutions that support complex, real-world challenges across multiple industries. You will collaborate with international teams of engineers, data scientists, and solution architects to design and deliver scalable data solutions that drive analytics, automation, and AI-powered insights within a world-leading technology environment. Key Responsibilities Build and optimise ETL/ELT pipelines for knowledge graphs and other data sources. Design and manage graph databases such as Neo4j, AWS Neptune, and ArangoDB. Develop...