37 technical architect jobs found in London

Job Title: Technical Architect Max rate: £550p/d via Umbrella Clearance required: BPSS + SC Location: Remote Worker Job Description: Technically Lead the architectural modernisation of a large-scale, established data platform (DWX) within public sector client. This role requires experience of brownfield environments, strong hands-on technical capability, and the ability to reshape existing architectures to align with business and Data & Analytic (D&A) standards while maintaining uninterrupted service delivery. You will be responsible for re-architecting data flows, modernising infrastructure, managing large-scale schema evolution, enabling cross-cloud connectivity, and providing senior guidance to technical teams and stakeholders. Skills & Experience Required Essential Proven experience as a senior technical architect in complex brownfield environments. Strong data platform architecture experience: ingestion patterns, schema evolution, ETL/ELT, microservices...

Technical Architect (Investment Systems) Location: London / Sheffield (Hybrid 2 days in office) Domain: Investment Technology (PMS, IBOR, ABOR) Contract: 6-12 months contract The Opportunity We are seeking a seasoned Technical Architect to lead the architecture of complex investment systems at a mission-driven financial institution. This key role involves owning the front-to-back architectural integrity of the investment platform, ensuring seamless integration across Portfolio Management (PMS), Investment Book of Record (IBOR), and Accounting Book of Record (ABOR). Responsibilities include defining the technical roadmap, influencing strategy, and ensuring scalable, resilient systems for long-term growth. Systems Evolution Design and oversee integrated PMS, IBOR, and ABOR architecture. Lead system transitions, integrations, and modernization.Investment Lifecycle Architecture Architect solutions for complex events: capital calls, distributions, multi-tier funds, and...

D365 Technical Architect Key Responsibilities & Capabilities: Solution Design: Defining technical architecture, managing and ensuring high-performing, scalable implementations. Technical Leadership: Leading development teams, establishing Application Lifecycle Management (ALM) processes, and driving best practices in coding and configuration. Environments and Release Management - Own and manage all environments and software releases and deployments across the multiple environments Integration Specialist: Designing complex integrations using Azure Services, REST APIs, and Power Platform. Stakeholder Management: Acting as a trusted advisor to clients, bridging the gap between functional requirements and technical execution. Quality Assurance: Performing code reviews, managing technical risks, and ensuring project delivery quality. Key Skills & Requirements: Technical Expertise: Deep knowledge of Dynamics 365 (CE, Sales, Field Service, Finance, or Supply Chain) and...

Salesforce Technical Lead (SC Cleared) 6 Months Mostly Remote - 2 days a month in London £(Apply online only) per day (Inside IR35) My client, a government body are looking for a number of Salesforce Technical Leads to join their fast-paced team on an initial 6 month contract. ***Please note - Due to the nature of the organisation and the work involved, the selected candidate MUST have ACTIVE SC Clearance and be a Sole British National*** As a Technical Lead, you will operate as a senior technical authority within the Salesforce practice, partnering with Solution Architects, Functional Leads, and client stakeholders to deliver scalable, secure, and high-performing solutions aligned to business outcomes. This role will lead technical workstreams across complex programmes, providing architectural oversight, engineering leadership, and technical assurance while mentoring delivery teams. Responsibilities on the role- Serve as a trusted advisor to key stakeholders within our...

Software Engineer (Java) SC Clearance Required Certain Advantage are hiring for a Software Engineer based in Portsmouth. This role is on an initial 12-month contract and is required to be onsite 3 days a week.   Your responsibilities: Contribute across the full software development lifecycle, including design, development, testing, and deployment. Design software solutions using UML/SysML and contribute to technical architecture within a microservices environment. Develop high-quality Java applications using Spring Boot, Spring Framework and related technologies. Implement and maintain RESTful web services over HTTPS within distributed systems. Write and maintain automated tests, ensuring quality and reliability are built into the solution from the outset. Participate in Agile ceremonies including sprint planning, estimation, reviews and retrospectives. Collaborate closely with team members and wider stakeholders to design, implement and test new product features. Contribute...

World Class Defence Organisation based in Stevenage is currently looking to recruit 3x Mechanical Systems Engineers / Architects on an initial 12 month contract.  The role will be hybrid of being split between working from home and onsite.    This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    A background or knowledge of Systems Engineering and Supplier Management would be beneficial. Contract Duration: 12 Months initially and then ongoing and long-term thereafter. Hourly Rate: £65.00ph   Mechanical Systems Engineer / Architect Job Description:   We have an opportunity for an experienced Mechanical Architect to join the team. This exciting role is to gather and manage the missile mechanical architecture requirements to...

Lead Service Designer / SC Cleared / DV Cleared / Inside IR35 / £580 / 6 Months / Contract / Milton Keynes   A Service Designer is required to lead the coordination of Service Design activity across the Technology and Operations portfolio within a Public Sector organisation as well provide leadership and management of the Service Design function, guiding teams and stakeholders to deliver secure, scalable, and supportable services that meet user and business needs. Essential: Degree or equivalent experience in Computer Science or Information Technology. Holds professional level certifications such as ITIL (Foundation or higher), BCS Certificate in Service Design, ISO/IEC 20000 Practitioner (Service Management Standard), Service Integration and Management (SIAM), Lean Six Sigma, TOGAF, AgilePM, or equivalent experience. Translate business, user, and operational requirements into coherent, efficient, and cost-effective service designs. Creating end to end Service Design Packages...

Role Title: Domain Architect Location: Remote Duration: 6 months contract Rate: £600 per day inside ir35 eSC (enhanced SC) security clearance is required for this role. Role Description: I am looking for a Domain Architect for a client of mine who are a leading IT consultancy operating within government and defence, you will thrive on having Design Authority for the relevant Service Line aligned to your domain expertise and enjoy being the domain focal point for ensuring its technical integrity. Being part of an enthusiastic Business Technologist community will enable you to maintain awareness of the latest technologies and innovations within their portfolio and apply these to your technology domains. Your role: Design Authority for the Service Line related to your domain expertise. Key stakeholder management for internal, as well as external parties. Expert strategy advisory within client facing Managed Services accounts along with new deals and transitions. Trusted...

Job Title: Enterprise Solution Architect Location: London-3 days Job Type: 6 months- Inside IR35 Role overview The role will operate within a complex enterprise environment and will be aligned to a large programme of work, acting as the single point of architectural accountability across multiple workstreams. Core skills and experience The successful candidate will demonstrate: * Strong end-to-end Solution Architecture capability, with a clear integration bias (demonstrable experience of different integration patterns) * An appreciation for Engineering but this is not a hands-on Engineering role – this is a solution focused role * Proven experience integrating across a broad technology landscape, including: * Core banking platforms (Temenos) * Digital platforms (e.g. Backbase) * KYC / AML / regulatory systems / Financial (Oracle Finance) * Ability to communicate effectively with both business and technical stakeholders, translating requirements...

Integration Solution Architect Certain Advantage are hiring for an Integration Solution Architect based in London on a hybrid basis. This role is on an initial 12-month contract and will be required to be onsite 3 days a week and 2 days remote. The role: Translating architectural guidelines and standards into practical solutions, addressing common technical challenges and providing actionable technical recommendations that positively impact business performance. Driving the identification, development, and adoption of new technologies and opportunities to optimise IT systems and platforms. Contributing to the training, coaching, and guidance of other professionals within the architecture and engineering community. Acting as a subject matter expert, representing the organisation with suppliers, customers, and external partners as required. Making solution decisions within established architectural guidelines, escalating deviations (“step-outs”) where necessary. Applying TOE...

Senior Solutions Architect - Transport Technology Programme Location: Hybrid - London Contract: 2-3 years, rolling 6-month extensions, potential for permanent conversion Daily Rate: Up to £749 (umbrella) A leading transport operator is seeking two Consultant Architects to join its Tech & Data programme, delivering complex multi-vendor transport systems. Front Office Architect: Focus on passenger-facing systems - gates, ticket vending machines, validators, and smart card systems. Experience with transport ticketing suppliers such as Cubic, Scheidt & Bachmann, or INIT is highly desirable. Back Office Architect: Focus on transaction processing and payment systems, including backend design (Java/.NET/Oracle) and integration with payment acquirers (Visa, Mastercard, Amex). Responsibilities: Develop and maintain end-to-end solution architectures and capability roadmaps. Break down complex projects into work packages for multiple vendors. Ensure solutions align with...

Role Overview My Client is seeking a highly skilled Freelance Design Manager to oversee and coordinate all design activities on a prestigious £20m new-build private residence in Surrey. The project includes a double basement, timber frame superstructure, high‑spec MEP systems, bespoke joinery, premium interiors, and extensive landscaping. The successful candidate will take ownership of design coordination from pre‑construction through to delivery, ensuring that technical information is complete, buildable, and aligned with client expectations for a luxury home. Key Responsibilities 1. Design Coordination & Management Lead coordination between architects, structural engineers, MEP consultants, interior designers, and specialist subcontractors. Manage the timely production, review, and approval of drawings, schedules, and technical documents. Ensure design aligns with project requirements, budget, programme, and buildability considerations. Run regular design team...

World Class Defence Organisation is currently looking to recruit an Electrical Systems Engineer / Architect subcontractor on an initial 12 month contract. Your base site can either be from the companies Bristol, Stevenage or Bolton office.  This role will be a hybrid position – 3 days per week onsite and 2 days remote.      Hourly Rate: £60 - £85 (Umbrella).      Contract Duration: 6 Months initially and then ongoing and long-term thereafter.   Missile Electronic Architect Job Description:   Electrical Architects/Engineers are involved in all aspects of missile development, from the early concept studies to series production and in-service support. It’s an excellent opportunity for someone wanting to build on their engineering experience. Responsibilities: You will be responsible for the electrical architecture and requirements for missiles and/or their associated launcher systems with duties including: Specifying/determining system electrical requirements interface definitions...

World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a High Speed Digital Design Engineer subcontractor.   Rate: £58.00 - £80 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role can be a mix of onsite and remote working Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: As part of a large team of analogue and digital electronics design engineers, you will be responsible for the electronics design and development of high speed MPSoC FPGA and AI hardware solutions targeting SDR, radar signal processing and sensor fusion applications. As Digital Design Engineer you will support the Technical Lead/Architect in collaboration with the systems, software, firmware, mechanical and...

Hiring: Java Software Engineer 📍 UK-Based | 🏠 Remote | 📅 12‑month contract | 450 per day I'm currently supporting the search for a highly capable Java Software Engineer looking to transition into Architecture to join a major transformation programme, leading the migration from on‑prem services into Azure. This isn't a junior role in experience - we're looking for someone with high-level architectural capability, strong communication skills, and the confidence to guide and oversee the work of experienced engineers. What You'll Be Doing 🔹 Supporting the Senior Architect across a large-scale cloud migration 🔹 Shaping data pipelines, data flows, and system-wide design 🔹 Providing architectural oversight to senior developers 🔹 Working across Java, Python and large data environments (design > coding) 🔹 Bringing a strong, assertive technical voice to ensure delivery stays on track What we're looking for: ✔ Strong Java engineering experience ✔ Exposure to cloud migration...

Copello Global are seeking an experienced Systems Engineer to join a leading defence organisation in Buckinghamshire on a 6-12 month contract. This role offers the opportunity to contribute to complex, mission-critical programmes within the avionics domain. As a key member of the engineering team, you will be responsible for supporting the end-to-end systems engineering lifecycle — from requirements definition and design through to integration, verification, and validation. Key Responsibilities * Develop and manage system requirements, specifications, and architectures. * Support system design, modelling, and trade-off studies. * Participate in system integration and verification activities. * Collaborate closely with multidisciplinary engineering teams and key stakeholders. * Ensure technical solutions align with safety, regulatory, and performance standards. * Contribute to documentation, reviews, and compliance activities across the lifecycle. Essential...

Contract AI Systems Architect Duration: 3-6 months IR35 Status: Outside IR35 Location: Fully Remote Working We are partnering with an ambitious start-up venture building a next-generation AI-powered decision intelligence platform for cybersecurity leaders. They are seeking an experienced contract AI Systems Architect to lead the architecture and delivery of a structured, guard railed AI engine designed for enterprise use. This is a high-impact contract role suited to someone who thrives at the intersection of product logic and advanced AI systems design. The successful contract AI architect will oversee the build of the core intelligence system, working directly with the founders. Key Responsibilities Architecture & System Design Define the end-to-end AI pipelines Design structured JSON schemas for inputs and outputs Architect a robust RAG framework (vector database, chunking strategy etc) Design domain and geography-aware retrieval logicAI Orchestration &...

Web GIS Lead – ArcGIS Enterprise | Contract | Enterprise Migration We are seeking an experienced Web GIS Lead to drive enterprise-scale ArcGIS Enterprise development, migration and integration projects. This is a hands-on technical leadership role focused on Portal for ArcGIS, ArcGIS Server and ArcGIS Data Store environments. You will lead the design, development and migration of enterprise GIS platforms, ensuring high-performance deployment, automation and seamless integration with business systems. Key Responsibilities * Lead ArcGIS Enterprise implementation and migration * Manage ArcGIS Portal content migration and service publishing * Develop web GIS applications using ArcGIS Experience Builder (React) * Build automation using Python, SQL and JavaScript * Deliver spatial ETL workflows using FME * Optimise GIS databases (PostGIS / Oracle Spatial) * Integrate GIS solutions with enterprise applications and cloud platforms (AWS / Azure) * Provide...

SharePoint Administrator Culham, Oxfordshire Culham - 0.5 days a fortnight on site 12-month contract | Full-time | Start ASAP - 9th March 2026 £36-41/hour Inside IR35 Are you a SharePoint expert with a strong background in document and information management? UKAEA is seeking a SharePoint Administrator (Document Architect) to design, implement, and govern document management solutions across the JDR Programme. You will ensure programme documentation is structured, controlled, and accessible, supporting compliance, collaboration, and operational efficiency. This is a high-impact role bridging technical SharePoint administration and document control best practice, enabling sustainable "business as usual" operations for the lifetime of the programme. Key Responsibilities SharePoint & Document Architecture Design and maintain SharePoint-based document management frameworks Establish and enforce document control standards, versioning, and metadata structures Configure...

Systems Engineer - Satellite Communications Portsmouth, UK 6 Month Inital Contract The Opportunity: Shape the Future of Secure Space-Based NetworksAn exceptional opportunity has arisen for a talented Systems Engineer to join our Lead Systems Engineers and Architects team within Defence & Space industry in Portsmouth, UK. This is your chance to directly contribute to the next generation of critical military satellite communications capability, including key future-looking programmes like the UK MOD's Skynet Enduring Capability and other vital Milsatcom initiatives. Our client has a proven track record, having delivered Milsatcom capability to the UK MOD from Skynet 4, through the successful Skynet 5 PFI, and currently delivering Skynet 6A on orbit. They are setting the standard for inter-satellite links, navigation, and space-based networks. Join us to be at the forefront of these exciting, engaged, and future-focused technologies. As a Systems Engineer, you will be pivotal...