27 senior service designer jobs found in London

At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the world's leading investment banks, investment managers, fintechs and capital market service providers. With a global reach with offices in London, New York, Manila, Barcelona and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions.   We are now looking for Technical Business Analyst services on an exciting project!     THE INDIVIDUAL/S PROVIDING THE SERVICES WILL HAVE THE FOLLOWING EXPERIENCE: The   ability to  see the big picture  while  managing the finer details  of delivery. The ability to ...

Government client is seeking a Delivery Manager to implement GDS principles across the delivery of complex, high-risk digital and non-digital initiatives. It's to lead the small team on their journey of implementing GDS framework. You'll be responsible for shaping delivery approaches, setting standards, and driving performance across multiple areas while working closely with senior stakeholders to ensure alignment, clarity, and successful outcomes at scale. The teams is mainly focused on digital applications and power apps and will require expertise of building their knowledge and understanding of GDS principles. GDS-Aligned Delivery Leadership Lead delivery of services in line with GDS Service Standard and Digital Service Playbook Champion user-centred design, iterative delivery, and continuous improvement Ensure services are designed around user needs rather than organisational structures Embed Agile and Lean practices across delivery teams at scale Service...

BUSINESS ANALYST (eCommerce * Retail * My Account) £450- £475 pd Outside IR35 12 months London, Z1 Hybrid My client are going through a re-platform of their 'My Account ' service, and are looking for a senior Business Analyst to support the teams and stakeholders. You will have experience working closely with UX, Design, Product, Engineering and more... you will ideally have had experience in similarly natured re-platforming projects in large-scale retail/eCommerece environments. Requirements & Analysis Interviews, workshops, and surveys with stakeholders to capture functional and non-functional requirements. Proactive analysis of business and user needs, translating these into clear, actionable requirements. Identify and address constraints (e.g., legal, privacy, and compliance). Map existing processes, highlighting gaps, risks, and opportunities for improvement. Collaboration & Stakeholder...

PowerApps Developer (Contract) - SC Cleared/NPPV3 London (Hybrid - 3 days per week onsite) Initial 3 months - Strong Extension Potential Up to £520 per day (Outside IR35) We are currently seeking a highly capable PowerApps Developer to join a high-profile programme delivering secure, scalable digital solutions within a regulated public sector environment. This role sits within a fast-paced delivery team focused on modernising core services through the Microsoft Power Platform. This is an excellent opportunity for a contractor who thrives in secure environments and has experience building robust applications that meet stringent compliance and security standards. Key Requirements Strong hands-on experience with the Microsoft Power Platform, including: PowerApps (Canvas and Model-driven apps) Power Automate (workflow automation) Dataverse and data modelling Proven experience delivering enterprise-grade Power Platform solutions end-to-end Ability to integrate Power...

Client : Public Sector Location : Hybrid, London or Birmingham, 2 days per week onsite Engagement Type : Contract (Outside IR35) Day Rate : Up to £500 per day, depending on experience Clearance : Active SC Clearance required. Should be immediately available to start the new role About the role A public sector client needs a Senior Boomi Architect to set the technical direction for a high-profile integration programme. This is the person who owns how integrations get designed across the estate, then stays close enough to the build to keep those standards real. You'll define the architecture and the reusable patterns the wider team delivers against. You'll also stay hands-on where it counts: shaping the complex integrations, unblocking the team, and making the calls that keep business-critical services running. It's a hybrid role. You'll be onsite at either the London or Birmingham office 2 days a week, with the site confirmed during the process. Key...

Job Title: Senior Boomi Developer Client: Public Sector Location: Hybrid London or Birmingham, 2 days per week onsite Engagement Type: Contract (Outside IR35) Day Rate: Up to £450 per day Clearance: Active SC Clearance required Should be immediately available to start a new role About the role A public sector client is seeking an experienced Senior Boomi Developer to join a high-profile integration programme on an initial contract basis. This is a hands-on, end-to-end role covering the design, build, deployment, and ongoing support of integration processes that underpin business-critical services. This is a hybrid role combining onsite collaboration with remote working you'll be based at either the London or Birmingham site for 2 days per week, with the specific site confirmed during the process. Key responsibilities Lead hands-on design, development, deployment, and maintenance of integration processes using the Boomi AtomSphere platform, including...

Digital Transformation Training and Adoption Analyst - D365 case management - £350 - £450 a day - Outside IR35 We are working with a Central Government client who has recently rolled out Copilot and a new frontline case management solution built on Dynamics 365, with a new Evidence Review Platform scheduled to go live in September 2026. To realise the full value of these investments, the organisation needs a structured and user-centred approach to digital skills, learning, change adoption and continuous improvement. The Digital Transformation Training and Adoption Analyst will play a key role in ensuring colleagues have the confidence, capability and support to adopt new tools and ways of working effectively, safely and consistently. Role Purpose To design, coordinate and continuously improve the organisations approach to digital training, user readiness and adoption for new technologies delivered through the Digital Transformation Programme. The postholder will help...

UI Architect Global Financial Services / Payments Client Location: London - 2 days per week Rate: £550–£570 per day Contract: 6 months initial IR35 Status: Outside IR35 Role Overview We are supporting a global financial services organisation operating in cross-border payments and emerging markets as they continue a large-scale technology transformation. They are looking for an experienced UI Architect to lead the design and delivery of scalable, modern front-end platforms aligned to a microservices architecture. This is a hands-on architecture role with responsibility for defining standards, driving best practice and shaping the frontend ecosystem across multiple products. Key Responsibilities Define and own frontend architecture across a microservices-based platform Design scalable UI solutions aligned to API-first backend services Establish reusable components, UI standards and enterprise design systems Define integration approaches...

Change and Comms Manager - Central Government - £500- £550 a day - 6 months - Outside IR35 Our Central Government client is delivering a significant Digital Transformation Programme to modernise core services, improve operational efficiency and support better organisational outcomes. This programme includes a number of cross-organisational projects, such as the introduction of a new case management system, a new evidence review and data management solution, the rollout of Copilot, and the refresh of audio-visual products and services. To support successful delivery and adoption of these changes, the client requires an experienced Change Manager to work closely with the Director of Digital Transformation and programme delivery teams. Role Purpose The Change Manager will work closely with the Director of Transformation, Digital and Technology Leadership team to lead the people side of change across the Transformation Programme, ensuring that new technologies, processes and...

Solution Architect - B2B Payments Transformation Contract: 6 months Rate: £550-£575 per day (Outside IR35) Location: London, Hybrid An experienced Solution Architect is required to lead end-to-end architecture for a large-scale B2B banking RTL and Payments Transformation programme within a complex financial services environment. This role will own solution design across multiple workstreams, ensuring a cohesive, scalable and resilient architecture aligned to regulatory, operational and commercial requirements. The programme spans core B2B banking capabilities , including payments, reconciliation, KYC, cash management, monitoring and billing. You will play a central role in shaping an event-driven architecture , working closely with senior stakeholders, peer architects and offshore delivery teams, while providing strong architecture governance and design assurance. Key Responsibilities Own solution architecture and high-level design across multiple workstreams...

Job title: Security Lead - DV Cleared-(Contract Outside IR35) Location: UK only. Hybrid with attendance at client locations across the UK. Some client secure-area work required Employment type: Contract Outside IR35 Experience: 5+ years Security Clearance: DV (Developed Vetting) and UK Nationality - MANDATORY. Pre-cleared candidates strongly preferred 1. Role purpose The Security Lead is our accountable security owner for the managed service. The role leads on, and has day-to-day operational responsibility for, service security - working in collaboration with the client's Information & Security function, the client Security Operations Centre (SOC), the internal delivery team, and the third-party software vendor. 2. Context The service processes HR, Finance and Project data including OFFICIAL-SENSITIVE personal and financial data. The contractual security regime spans UK Government security policy, NCSC HMG IAS5, GDPR/DPA 2018, PCI-DSS where applicable,...

Solution Architect - B2B Payments Transformation Contract: 6 months Rate: £550- £575 per day (Outside IR35) Location: London, Hybrid An experienced Solution Architect is required to lead end-to-end architecture for a large-scale B2B banking RTL and Payments Transformation programme within a complex financial services environment. This role will own solution design across multiple workstreams, ensuring a cohesive, scalable and resilient architecture aligned to regulatory, operational and commercial requirements. The programme spans core B2B banking capabilities , including payments, reconciliation, KYC, cash management, monitoring and billing. You will play a central role in shaping an event-driven architecture , working closely with senior stakeholders, peer architects and offshore delivery teams, while providing strong architecture governance and design assurance. Key Responsibilities Own solution architecture and high-level...

Contract Business Analyst - KPI Reporting / Dashboard Development We are seeking an experienced Contract Business Analyst to support a KPI reporting and dashboard development project on an initial six-month assignment. The successful contractor will work closely with senior stakeholders to identify, define and gather the KPI metrics required for corporate reporting dashboards. This will include understanding business performance requirements, assessing available data points, shaping dashboard content, and ensuring information is presented clearly and effectively for senior audiences. This role would suit a confident, delivery-focused Business Analyst with strong stakeholder engagement skills, recent social housing experience, and a solid understanding of KPI reporting, data requirements and dashboard design. Contract: 6 months Rate c £500 per day Outside IR35, subject to CEST determination Location: Remote-first hybrid, with occasional face-to-face collaboration as...

UI Architect Global Financial Services/Payments Client Location: London - 2 days per week Rate: £550-£570 per day Contract: 6 months initial IR35 Status: Outside IR35 Role Overview We are supporting a global financial services organisation operating in cross-border payments and emerging markets as they continue a large-scale technology transformation. They are looking for an experienced UI Architect to lead the design and delivery of scalable, modern Front End platforms aligned to a microservices architecture. This is a hands-on architecture role with responsibility for defining standards, driving best practice and shaping the Front End ecosystem across multiple products. Key Responsibilities Define and own Front End architecture across a microservices-based platform Design scalable UI solutions aligned to API-first Back End services Establish reusable components, UI standards and enterprise design systems Define integration approaches with RESTful and...

Contract Business Analyst - KPI Reporting/Dashboard Development We are seeking an experienced Contract Business Analyst to support a KPI reporting and dashboard development project on an initial six-month assignment. The successful contractor will work closely with senior stakeholders to identify, define and gather the KPI metrics required for corporate reporting dashboards. This will include understanding business performance requirements, assessing available data points, shaping dashboard content, and ensuring information is presented clearly and effectively for senior audiences. This role would suit a confident, delivery-focused Business Analyst with strong stakeholder engagement skills, recent social housing experience, and a solid understanding of KPI reporting, data requirements and dashboard design. Contract: 6 months Rate c £500 per day Outside IR35, subject to CEST determination Location: Remote-first hybrid, with occasional face-to-face collaboration as required Start...

Solution Architect - B2B Payments Transformation Contract: 6 months Rate: £600-£650 per day (Outside IR35) Location: London, Hybrid An experienced Solution Architect is required to lead end-to-end architecture for a large-scale B2B banking RTL and Payments Transformation programme within a complex financial services environment. This role will own solution design across multiple workstreams, ensuring a cohesive, scalable and resilient architecture aligned to regulatory, operational and commercial requirements. The programme spans core B2B banking capabilities , including payments, reconciliation, KYC, cash management, monitoring and billing. You will play a central role in shaping an event-driven architecture , working closely with senior stakeholders, peer architects and offshore delivery teams, while providing strong architecture governance and design assurance. Key Responsibilities Own solution architecture and high-level design across multiple workstreams...

UI Architect Global Financial Services / Payments Client Location: London - 2 days per week Rate: £550- £570 per day Contract: 6 months initial IR35 Status: Outside IR35 Role Overview We are supporting a global financial services organisation operating in cross-border payments and emerging markets as they continue a large-scale technology transformation. They are looking for an experienced UI Architect to lead the design and delivery of scalable, modern front-end platforms aligned to a microservices architecture. This is a hands-on architecture role with responsibility for defining standards, driving best practice and shaping the frontend ecosystem across multiple products. Key Responsibilities Define and own frontend architecture across a microservices-based platform Design scalable UI solutions aligned to API-first backend services Establish reusable components, UI standards and enterprise design systems Define...

Solution Architect - B2B Payments Transformation Contract: 6 months Rate: £600- £650 per day (Outside IR35) Location: London, Hybrid An experienced Solution Architect is required to lead end-to-end architecture for a large-scale B2B banking RTL and Payments Transformation programme within a complex financial services environment. This role will own solution design across multiple workstreams, ensuring a cohesive, scalable and resilient architecture aligned to regulatory, operational and commercial requirements. The programme spans core B2B banking capabilities , including payments, reconciliation, KYC, cash management, monitoring and billing. You will play a central role in shaping an event-driven architecture , working closely with senior stakeholders, peer architects and offshore delivery teams, while providing strong architecture governance and design assurance. Key Responsibilities Own solution architecture and high-level...

Platform Engineer | Trading Firm Central London | 3 days on site Outside IR35 | Up to £650 per day A trading firm in central London has rolled out a business wide data platform and now needs a senior Platform Engineer to take full control of the platform layer. Kubernetes is the heart of this environment and they need someone who can run it with confidence, precision and zero drama. What they need you to bring Serious Kubernetes depth covering cluster design, workload orchestration, autoscaling strategies, multi cluster operations, network policy, resource tuning and deep debugging across pods, nodes and the control plane Deep Linux fluency with the ability to harden, tune and own production environments from top to bottom Strong SQL engineering skills covering schema design, performance tuning and high throughput optimisation Solid C# background with clean, maintainable service patterns Ability to design, build and refine CI/CD...

Senior Software Engineer - AI-Assisted Legacy Medernisation Outside IR35 - Contract (Insurance Client) About the role Softwire is helping our client modernise a business-critical legacy platform, moving it off Oracle Forms and onto a modern React and .NET stack, with the underlying Oracle database migrating to Azure SQL. We're looking for a strong full-stack contract developer to join the existing team and drive this migration forward. What sets this role apart is that the use of AI tools is the main focus, not a nice-to-have. You'll use tools such as Claude to accelerate the translation of Oracle Forms logic into the new stack and to support the database migration. We want someone who already works this way day to day and can show how AI changes the pace and quality of their delivery. Key Responsibilities Work alongside our team to migrate the legacy product onto a React / .NET architecture, keeping pace with the team's Jira workflow. Use AI tools...