31 security architect jobs found in London

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...

Cyber Security Architect (Hybrid - London) - IAM/Cloud/Infrastructure Type: Contract 6+ months Rate: Up to £750 a day (Inside IR35) Location: Hybrid - 3 days per week onsite (London office) Overview An established national organisation is seeking an experienced Cyber Security Architect to help shape and safeguard its enterprise technology landscape. This is a senior, influential contract role ideal for someone who blends strategic architectural thinking with practical, delivery‑focused cyber security expertise. You will work across technology, business, and governance teams, ensuring solutions are secure, risk‑aligned, and supportive of wider organisational objectives. This role offers the opportunity to solve complex security challenges, influence senior stakeholders, and design security approaches that enable the business. Skills & Experience Required Core Competencies Strong influencing and negotiation skills. Ability to communicate clearly across written, verbal,...

Security Architect - Cloud Security £550-£620 per day Umbrella | Inside IR35 Location: UK Based (Hybrid/Remote options available) Sector: UK Central Government Contract: 30 Weeks We are currently looking for an experienced Security Architect to join a high-profile programme within the UK Central Government sector. This is an exciting opportunity to play a key role in the "(phone number removed) Cab Off One Login" project, helping shape and deliver secure cloud architecture solutions across a complex enterprise environment. The Role As a Security Architect, you will define and deliver robust cloud security frameworks and architectures that align with business requirements, operational performance goals, and government security standards. You will act as a Subject Matter Expert (SME), influencing key stakeholders, advising technical teams, and contributing to strategic security decisions across multiple workstreams. This role requires strong expertise across cloud security...

SC Cleared Security Architect 6 month contract + Inside IR35 Hybrid - 1x a month in London Up to £600 p/d What we're looking for Active SC clearance Strong AWS security architecture experience Experience working in secure, regulated or public sector environments Good understanding of cloud security controls, patterns and governance Familiarity with DevOps, CI/CD, infrastructure-as-code and modern engineering practices Experience designing or reviewing solutions across cloud, legacy or hybrid environments Ability to apply structured analysis to real-world security challenges Knowledge of risk methodologies and how to apply them proportionately Strong stakeholder engagement skills, with the ability to explain technical security issues clearly Comfortable working collaboratively across multidisciplinary delivery teamsNice to have Understanding of Home Office or central government security processes Knowledge of secure cloud platforms, landing zones, guardrails or core cloud...

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...

Security Architect Location: Warwick - Hybrid - 3 days per week onsite Start Date: ASAP Contract Rate: £500 per day inside IR35 Working Pattern: On-call shifts Duration: 6 to 12 months initially Role Overview Our client is seeking an experienced Security Architect to support the design, implementation, and governance of secure solutions across a complex enterprise environment. This role will play a critical part in safeguarding systems and data by identifying risks, defining security architectures, and ensuring compliance with internal and external security standards. You will work closely with project, engineering, and DevOps teams to embed security into the delivery lifecycle. Key Responsibilities * Provide security guidance and direction to projects and programmes * Own and define security architecture across multiple initiatives * Drive security requirements, standards, and best practices * Collaborate with development and DevOps teams on secure solution...

Role: Network Security Consultant Location: Warwick (Hybrid) Contract Type: 6-month Contract Rate: £425/day (Inside IR35) Working Hours: Shift-based About the Role: We are seeking a proactive and highly skilled Network Security Consultant to join a leading organization in a dynamic and challenging environment. You will design, implement, and maintain network security solutions while collaborating with cross-functional teams to strengthen the company’s security posture. Key Responsibilities: * Design, implement, and manage network security solutions including Firewalls, IDPS, Proxy, Load Balancers, VPN, WAF, and related technologies. * Manage firewall policies, network access controls, AAA mechanisms, MFA, IAM, RBAC, and Privilege Management solutions. * Ensure network security aligns with compliance standards (e.g., GDPR, HIPAA, PCI DSS). Conduct security audits and assessments. * Work with IT teams to integrate security into infrastructure, applications, and cloud...

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:...

Lead Cloud Architect - Azure Transformation Location: Central London or Sheffield (Hybrid - 2 days onsite, with some travel between both sites) Contract: Initial 12 months with extensions (2-3 year transformation programme) Rate: £750-£900 per day (Inside IR35) Shape the Future of Cloud at one of the UK's Largest Organisations Are you an experienced Senior Cloud Architect with deep knowledge of Azure based cloud transformations? Do you have exceptional stakeholder engagement skills and a track record of significant contributions to complex, enterprise-scale environments? If so, apply now for this new role. We are looking for a highly experienced Senior Cloud Architect / Senior Azure Architect to play a pivotal role in a major enterprise-wide digital transformation programme. The successful Senior Cloud Architect / Senior Azure Architect will be an energetic, enthusiastic and charismatic leader, who can build key relationships with senior stakeholders as well as key internal...

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 DNS Architect Location: Wokingham, UK Work Mode: Office based (5 days per week) Contract Type: Contract Duration: 6 months Rate: £510 per day (Inside IR35) We are seeking an experienced Network DNS Architect to design, implement, and manage enterprise-scale DNS infrastructure within a large, complex environment. This role is ideal for a senior networking professional with deep expertise in DNS architecture, network design, and security, ideally with experience working in regulated or secure environments. You will take ownership of DNS strategy across on-premises, cloud, and hybrid infrastructures, ensuring high availability, resilience, and strong security controls. The role requires close collaboration with network, security, and cloud engineering teams, along with the ability to provide technical leadership and mentorship. Key Responsibilities * Design and architect scalable and resilient DNS solutions across enterprise environments * Define DNS strategy...

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...

Our client has an opportunity for a Building and Construction Project Leader to join them on a contract basis for 12 months with possible extension. Role: Project Leader Location: Portsmouth - fully onsite Hours: 37 per week Hourly Rate: Up to £40 per hour via Umbrella, inside IR35 Clearance: BPSS required before starting, UK Eyes Only due to project What you'll be doing: Develop, update/manage and monitor a project delivery plan. Identify and manage risks and opportunities. Manage CAPEX business cases from preparation through approval to delivery and project close. Develop detailed design briefs for Building Services design for a range of projects including major plant replacement and refurbishment works. Skilled and competent in IT tools, able to produce and present documentation, reports, technical analysis, cost reports. Experience in SharePoint / MS Project / G suite highly preferred. Application of industry standard design and software Liaising with clients, architects...

This role is ideal if you enjoy hands-on enterprise architecture modelling, turning complex technical and business landscapes into clear, usable models that directly inform strategic decisions. Key Details Role: Enterprise Architect (Buisess and Tooling) Sector: Public Sector / Defence Location: Corsham (primary), with presence in Northwood and hybrid working (2 -3 timed per week on site) Contract length: 6 months IR35: Inside Day rate: £550 - £600 Security clearance: eligible for DV (Active SC is an advantage) What you will be doing Developing enterprise architecture models and roadmaps that link technology strategy with business goals. Modelling business processes, data practices and organisational structures using best-practice methods. Organising and structuring large volumes of existing architectural information into clear, coherent models. Creating visual representations of workflows, processes and structures that stakeholders can easily understand. Explaining complex...

Rubicon Consulting is currently recruiting for Semantic Graph & Ontology Architect on a 6 Month Rolling Contract, based in Warwickshire. Role Summary We’re building a Smart Data Fabric that unifies enterprise data (Snowflake, SharePoint, ERP, NoSQL, and document silos) and exposes it to advanced AI agents through a semantic, graph-native, and vector-aware foundation. You will own graph and semantic architecture, modeling business relationships, processes, and logic to enable accurate, contextual, auditable workflows. This is a hands-on leadership role spanning LPG vs RDF/OWL tradeoffs, query optimization, and ontology engineering. Key Responsibilities Graph & Semantic Architecture * Design scalable graph schemas (LPG and/or RDF/OWL) based on semantic and inference requirements. * Author and optimize Cypher/Gremlin/SPARQL queries for multi-hop traversal, orchestration, and complex reasoning. * Define canonical entity models and mapping layers across Snowflake,...