Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Search within
50 miles
10 miles 20 miles 50 miles 100 miles 200 miles
Refine by IR35 Status
Unknown Status 14 Inside IR35 8 Outside IR35 5
Refine by Categories
Information Technology 12 Construction 5 Engineering 5 Management 2
Refine by Job Type
Contractor 27
London technical architect

27 technical architect jobs found in London

CL
Mar 20, 2026  
Technical Architect
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...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 18, 2026  
Lead Technical Architect
Lead Tech Architect - 6‑Month Contract | £750/day (Inside IR35) Locations: London, Bristol, Manchester, or Birmingham (Flexible) Clearance: The ideal candidate will hold active SC clearance Start: ASAP Overview We're looking for an experienced Lead Tech Architect with deep Azure expertise and a strong background in secure cloud solution design. You'll play a critical role in shaping cloud architecture aligned with NCSC principles, strengthening security posture, and guiding the delivery of modern cloud services across a complex environment. Travel: ~1× per month to London for team meetings/workshops Ad hoc London visits for conferences and departmental engagementEssential Skills & Experience Core Technical Skills Azure-focused cloud architecture & infrastructure Solution architecture and technical design Security & compliance: aligning solutions with NCSC cloud security principles Knowledge of UK GDPR, Data Protection Act, classification policies, and network...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 20, 2026  
Technical Architect (Investment Systems)
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...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Mar 21, 2026  
D365 Technical Architect (CE & FO)
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...
IR35 Status:
Unknown Status

CV-Library Maidenhead, Berkshire Contractor
CL
Mar 21, 2026  
Salesforce Technical Lead (SC Cleared)
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...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Jan 18, 2026  
Mechanical Systems Engineer / Architect
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...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Mar 18, 2026  
Lead Service Designer
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...
IR35 Status:
Inside IR35

CV-Library Milton Keynes, UK Contractor
CL
Mar 18, 2026  
Enterprise Solution Architect
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...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 15, 2026  
D365BC Functional Lead/Architect
D365BC Functional Lead/Architect - 6 Months - Outside IR35 - £500p/d An established end-user organisation is delivering a Microsoft Dynamics 365 Business Central (BC) implementation and requires a senior Functional Lead / Solution Architect to own solution design, configuration and delivery across core finance and operational workstreams. This is a hands on role, bridging business stakeholders and the SI, ensuring the system is fit-for-purpose and aligned to operational goals. Key Responsibilities: Lead functional design across D365 BC implementation Own end-to-end configuration, build, testing and deployment of new solutions and fixes Act as internal solution authority across Finance and Projects Translate business requirements into scalable BC designs Oversee UAT, manage defects and support go-live readiness Provide governance across P2P, R2R, OTC and Projects (Jobs module) Partner with technical resources on integrations and data migration Develop reporting capability...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Feb 05, 2026  
Integration Architect
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...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 20, 2026  
Senior Solutions Architect
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...
IR35 Status:
Outside IR35

CV-Library Greenwich, London Contractor
CL
Mar 15, 2026  
Network Architect
Network Architect – Juniper Technologies (SD-WAN | MIST | Junos LAN) We are seeking a highly experienced Network Architect with deep expertise in Juniper OEM technologies to lead the design, implementation, and optimization of enterprise-grade SD-WAN, LAN, and WLAN solutions. This is a hands on role, the involves Consulting, Engineering and Documentation. Key Responsibilities * Design and develop network architecture strategies and technology roadmaps for Juniper SD-WAN, MIST AI, and Junos LAN solutions aligned with business and IT objectives. * Collaborate closely with customer IT and security teams to ensure solutions meet operational, performance, and compliance requirements. * Lead configuration, deployment, and troubleshooting of Juniper SD-WAN, LAN, and WLAN platforms. * Monitor overall network performance at a high level, proactively identifying improvement opportunities and resolving architectural gaps. * Manage and optimize multi-vendor WAN environments...
IR35 Status:
Unknown Status

CV-Library Hertford, Hertfordshire Contractor
CL
Mar 13, 2026  
Freelance Design Manager
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...
IR35 Status:
Unknown Status

CV-Library Sunningdale, Royal Borough of Windsor and Maidenhead Contractor
CL
Feb 11, 2026  
Electrical Systems Engineer / Architect
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...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Jan 21, 2026  
High Speed Digital Design Engineer
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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Mar 20, 2026  
Web GIS Lead
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...
IR35 Status:
Unknown Status

CV-Library Reading, Berkshire Contractor
CL
Mar 18, 2026  
Business Analyst (Salesforce) - PERM - London, UK
Role: Business Analyst - Salesforce Type: PERM Location: London, UK Working Model: Hybrid (2 Days in office per week) We're looking for a highly technical Salesforce BA who can bridge the gap between business requirements and complex code. You won't just gather requirements; you'll design scalable solutions and create the technical architecture that brings them to life. What You'll Do Partner with clients to translate business needs into technical solutions. Create and maintain deep technical artifacts (ERDs, System Landscapes, Process Flows, Sequence Diagrams). Apply object-oriented design (OOP) and data modeling principles to both cloud and on-prem architectures.Mandatory Skills Deep expertise in Salesforce Service Cloud. Hands-on technical proficiency with Apex, Lightning Web Components (LWC), Aura, and Visual Force. Solid understanding of mobile app development principles.This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 20, 2026  
ServiceNow Platform Designer
Servicenow Platform Designer with SC or DV Clearance is required by our government client based in London/Midlands Working in an SC Security Cleared environment. Due to the urgency of the role, you will hold a current SC or DV (Developed Vetting) Clearance (or be eligible) To start ASAP Rate c £(Apply online only) pd (Umbrella) Role: You will provide strategic, technical, and design leadership for the ServiceNow platform, ensuring it is architected, configured, and governed in a scalable, secure, and sustainable way. The Platform Designer shapes the end to end platform design across CMDB, integrations, and core workflows, enabling major transformation activities and long term service evolution Skills: Deep expertise in ServiceNow platform design across ITSM, CMDB, Discovery, ITOM, and IntegrationHub. Strong capability in CMDB architecture, CI class modelling, relationship design, and data governance. Strong understanding of API/web service design (REST/SOAP), MID Server patterns,...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 19, 2026  
Cloud Delivery Manager
Core Cloud Delivery Manager 12 months, scope to extend Hybrid, London Inside IR35 Active SC would be advantageous Public sector experience required The Delivery Manager is accountable for the end-to-end delivery of the clients Core Cloud services, ensuring platforms, products, and supplier outcomes are delivered on time, within tolerance, and to production-grade standards. This is not a ceremonial Agile role. It is a hands-on delivery leadership position operating in a high-assurance, multi-supplier, politically visible environment. You will be expected to control risk, expose reality early, and keep delivery moving despite ambiguity, dependency churn, and security constraints. Key Responsibilities Delivery & Execution * Own delivery across one or more Core Cloud workstreams (platform, migration, security uplift, tooling, or service onboarding). * Translate strategy, roadmaps, and funding intent into executable delivery plans with clear milestones,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 10, 2026  
Project Construction Manager
Overview We are seeking an experienced Construction Project Manager specialised in new high-end build developments to oversee and coordinate large-scale construction project from inception to completion. The ideal candidate will possess strong organisational skills, technical expertise, and the ability to manage multiple stakeholders effectively. This role offers an exciting opportunity to lead innovative project within a dynamic construction environment, ensuring all phases are delivered on time, within budget, and to the highest standards of quality. Duties Lead and manage all aspects of new build construction projects, including execution and close-out phases. Develop detailed project schedules, ensuring realistic timelines and resource allocations. Coordinate with architects, engineers, subcontractors, and clients to ensure project specifications are met. Monitor progress against project milestones, adjusting plans as necessary to address delays or unforeseen issues. Oversee...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software