19 senior service designer jobs found in London

Senior Flutter Developer - Outside IR35 - Contract A rare opportunity to join our fast-growing technology company selling high-value software development services. An ideal role for an experienced and dynamic developer who wants to be involved with an exciting and challenging project. Must have Several years of experience developing customer-facing mobile apps for both iOS and Android, using Flutter. Experience working as part of a team (including tools to support collaboration, such as git and user story management software) Experience working closely with other job roles, such as designers and product owners Nice to have Experience with mobile back-end development / Node Experience of CI/CD/DevOps for mobile apps Experience collaborating with clients or stakeholders, including clarifying requirements and presenting work at sprint demos Have experience delivering great outcomes for clients in an agency or professional services firm Your...

AI Engineer - LLM & Agentic Systems London - Hybrid. Circa £500 - £675 per day (and negotiable DOE) Contract (Outside IR35) Mid-level, Senior & Lead. Agentic AI/Machine Learning. Company: Our client is a globally established B2B information and professional services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you've built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you'll be working on as an AI Engineer - LLM & Agentic Systems: Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to solve real,...

Mobile Engineer (iOS/Android) - Contract Location: London (2/3 days per week onsite) Contract Length: 6 months initial (likely extension through to year-end) Rate: Up to £600 per day IR35: Outside IR35 We're supporting a leading technology organisation that is looking for a Mobile Engineer to provide technical leadership across a portfolio of mobile initiatives. This is a unique opportunity for someone who sits between architecture, engineering, and delivery. The role is not focused on writing code day-to-day, but it does require someone with sufficient technical depth to challenge engineering decisions, assess delivery quality, and guide teams towards the right technical outcomes. You'll be joining an environment with significant mobile project demand and multiple delivery workstreams already underway. The challenge isn't a lack of engineering capacity - it's ensuring delivery teams are building the right solutions, following appropriate architectural patterns, and...

Job Title: Senior Data & MIS Consultant (FE Sector) - Contract (Outside IR35) Location: Fully Remote (UK-based) About the Role / Job Summary: A leading Further Education provider seeks a senior consultant to complete a strategic review of its MIS and data landscape. You will partner with senior leadership to assess current capability and define a pragmatic roadmap for data, systems, governance, and investment. The engagement is business-facing and outcome-focused, blending technical depth with strategic advisory to improve insight, compliance, and decision-making across the organisation. Key Details: Contract Length: 3 months IR35 Status: Outside IR35 Rate: £400 - £600 per day (negotiable for the right candidate) Key Responsibilities: Lead a holistic review of MIS and data ecosystems, including systems, architecture, and reporting. Assess data quality, governance, stewardship, and ownership frameworks with a focus on Master Data Management....

Senior Java Developer / AI Engineer - Design & Build Payment Product / Fintech / Banking. Spring Boot, Claude/Codex also essential. ANY PAYMENT PRODUCT CONSIDERD from Current Account OR SAVINGS OR ISA's OR Fixed Term Deposits, Lending etc. £600-£650/DAY OUTSIDE IR35 PAY. Our Fintech Challenger Bank client based in Central London seeks a dynamic, eager to learn and technically astute Java Software Engineer who has extensive experience in Designing & Building a Payment Product *NOT PAYMENT PLATFORM* so the ideal candidate will come from for e.g. a Challenger Bank or Fintech Payment Product Company. STRONG skills in Java, Spring Boot, AI (Claude or Codex), working in a Fintech Payment domain. YOU WILL NOT BE CONSIDERED IF YOU DO NOT HAVE FINTECH & DESIGN & BUILD PAYMENT PRODUCT EXPERIENCE WITH JAVA, SPRING & STRONG AI! Our client is hiring a hands-on SENIOR Software Engineer / Java Developer to support delivery and development of Savings products...

Job Information Date Opened 04/06/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 550 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter. Job Summary The Lead Business Relationship Manager (Lead BRM) serves...

Join a leading Government Department where your security expertise will drive strategic transformation and protect critical national infrastructure. Salary:  £500 - 525 per day Security Architect - Active SC Clearance A Government Department requires a Contract Security Architect with active SC Clearance to provide strategic security leadership, architecture assurance, and Secure by Design guidance across complex government programmes, ensuring alignment with regulatory frameworks, security standards, and organisational risk objectives. Day Rate: £500-£525pd IR35 Status: Outside Travel: Fully Remote Duration: Initial 6 months This Security Architect will have the following experience: Provide security leadership and architectural oversight, ensuring security is embedded by design and aligned with organisational objectives, risk appetite, and government security requirements throughout the delivery lifecycle Apply...

Full job description Job Information Date Opened 04/06/2026 Job Type Contract Industry Government & Public Sector Work Experience 5+ years Salary 550 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter. Job Summary The Lead Business Relationship Manager...

Initial 6 month contract Remote (London) Up to £500/day This is a fantastic opportunity to play a key role in large-scale transformation initiatives within a globally recognised law firm. You'll work alongside business stakeholders, project teams, and testing leads to ensure that new systems and processes meet business needs and deliver real value. You'll be part of a collaborative, fast-paced environment where innovation, diversity, and professional growth are at the forefront. Job Title: Transformation Test Analyst Job Type: Initial 6 month contract Working Arrangement: Remote Office Location: Central London Day Rate: Up to £500/day (outside IR35) The Role: Design and execute User Acceptance Testing (UAT) aligned to evolving business requirements Translate business requirements into clear test scenarios and scripts Support and guide business users throughout the UAT process Execute test cases and accurately record results Identify, log, and...

Job Title: Senior Data & MIS Consultant (FE Sector) - Contract (Outside IR35) Location: Fully Remote (UK-based) About the Role / Job Summary: A leading Further Education provider seeks a senior consultant to complete a strategic review of its MIS and data landscape. You will partner with senior leadership to assess current capability and define a pragmatic roadmap for data, systems, governance, and investment. The engagement is business-facing and outcome-focused, blending technical depth with strategic advisory to improve insight, compliance, and decision-making across the organisation. Key Details: Contract Length: 3 months IR35 Status: Outside IR35 Rate: £400 - £600 per day (negotiable for the right candidate) Key Responsibilities: Lead a holistic review of MIS and data ecosystems, including systems, architecture, and reporting. Assess data quality, governance, stewardship, and ownership frameworks with a...

Senior Data Engineer - Contract (outside IR35) - up to £550 per day We’re hiring a Senior Data Engineer to join a leading global organisation, helping to build and enhance a modern data platform within the insurance sector. NB London Market Insurance experience is essential. If you do not have this experience, you will not be eligible for this role. The role You’ll design and develop data pipelines using ETL/ELT, ensuring strong standards in testing, reconciliation, and documentation. You’ll contribute to data modelling, support data delivery, and build APIs/services for stakeholders. You’ll also collaborate across teams, promote best practices, and mentor junior colleagues in an Agile environment. Key requirements London Market Insurance experience (must-have) Advanced T-SQL, SSIS, Azure Data Factory Power BI/SSRS, MDX/DAX Strong data modelling Experience with Azure & on-prem SQL Azure DevOps, data APIs, solid documentation/testing practices...

Hiring: Services Architect – Financial Services Hiring: Services Architect – Financial Services 📍 Location: Hybrid (some onsite work in London) 📅 Contract Length: 6 Months 💰 Rate: £600 per day 📃 IR35 Status: Outside IR35 🚀 Start Date: ASAP Overview We are seeking an experienced Services Architect to join a major transformation programme within the financial services sector. This is a pivotal contract role focused on shaping, defining, and governing service architecture across a complex technology and business change landscape. You will bring deep expertise in designing scalable, secure, and cost-effective service models, working at the intersection of architecture, delivery, and operations to ensure services are fit for purpose and aligned with enterprise strategy. Key Responsibilities Define, design, and deliver client operating models and solution-specific service models. Conduct structured client assessments across service-related domains,...

Enterprise / Solution Architect – ServiceNow | Telecom | Outside IR35 Contract: 6 Months Initial Location: London (Hybrid – 2 days per week) We are seeking an experienced Enterprise Architect / Solution Architect with strong ServiceNow and telecommunications experience to join a major transformation programme. This role is ideal for a ServiceNow Architect who has delivered enterprise-scale solutions within telecom, OSS/BSS or communications environments and can translate complex business requirements into scalable technical architecture. Key Responsibilities: • Define end-to-end ServiceNow architecture and solution design. • Lead architecture across ServiceNow modules including ITOM/TSOM, TSM, CSM, HRSD, IRM/GRC, SecOps and SPM. • Drive platform governance, standardisation and best practice. • Design integrations, workflows, data models and technical solutions. • Collaborate with senior business and technology stakeholders. • Support large-scale digital...

Project / Programme Management - eDV Cleared Contractors Required 📍 London OR the SouthWest (Hybrid – Client Site up to 2 Days per Week) 💰 £550–£750 per day Outside IR35 (Dependent on experience, clearance status and assignment) ⏳ Long-Term Engagements (12+ Months) Security Clearance Requirement Active UK Government eDV (Enhanced Developed Vetting) clearance is essential. Candidates whose eDV clearance has lapsed within the last 9 months may also be considered, subject to transferability and client approval. The Opportunity We are supporting internal teams who are delivering transformation programmes across National Security, Defence and Critical National Infrastructure environments. You will work alongside some of the UK's most secure and operationally sensitive organisations, helping clients solve complex business, operational and technology challenges. The focus is firmly on delivery, this is an opportunity to join programmes that are developing...

Senior ML Platform Engineer London 5 Days a Week In Office £550- £700 Per Day, Outside IR35 Immediate Start The Company They are a technically ambitious organisation building advanced machine learning systems tightly integrated with real-world systems. Their platform supports the full lifecycle from data collection through to large-scale training and deployment. Engineering quality, reliability, and thoughtful system design are core to how they operate. The Role and Deliverables Own and evolve the operator-facing platform, including web UIs, backend services, and CLI tooling used for live data collection and dataset workflows. Design and maintain robust recording and orchestration systems that scale across robots, sensors, and lab environments. Collaborate with the ML team on dataset builders, ingestion pipelines, and infrastructure supporting large-scale distributed training. Partner with robotics engineers on ROS2 integration,...

AI Engineer - LLM & Agentic Systems London - Hybrid. Circa £500 – £675 per day (and negotiable DOE) Contract (Outside IR35) Mid-level, Senior & Lead. Agentic AI / Machine Learning. Company: Our client is a globally established B2B information and professional services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you've built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you'll be working on as an AI Engineer - LLM & Agentic Systems: Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to...

Security Architect - Active SC Clearance Duration: 6 Months Location: Based at client locations or working remotely Daily Rate: £600 (a status determination assessment has been carried out and the outcome placed the role outside IR35) Due to the urgency of this role candidates must active Security Clearance About Us Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. Role Summary Triad is seeking a Security Architect; you will play a critical role in designing, assuring, and delivering secure solutions across our client engagements. You will champion Secure by Design principles and lead threat modelling activities to ensure risks are identified and mitigated early in the lifecycle. Working closely with stakeholders, you will define security...

AI Engineer - LLM & Agentic Systems London - Hybrid. Circa £500 - £675 per day (and negotiable DOE) Contract (Outside IR35) Mid-level, Senior & Lead. Agentic AI/Machine Learning. Company: Our client is a globally established B2B information and professional services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you've built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you'll be working on as an AI Engineer - LLM & Agentic Systems: Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to solve real,...

AWS DevOps Engineer | £600 - £635 We're working with a leading specialist technical consultancy delivering high-impact digital transformation for the UK's most critical public sector projects on this exciting opportunity. We are seeking a heavyweight AWS DevOps Engineer to take full ownership of cloud infrastructure and testing lifecycles within a secure government environment. This is a high-autonomy role where you will leverage Kubernetes, Terraform, and advanced CI/CD patterns to build resilient, scalable public sector services from the ground up. The Role Lead the design and implementation of highly secure AWS cloud architecture spanning compute, storage, and networking. Deliver robust Infrastructure as Code (IaC) using Terraform, CloudFormation, or Ansible to ensure repeatable, audited environments. Build and orchestrate containerised workloads using Docker and Kubernetes to drive service efficiency. Architect and maintain sophisticated CI/CD pipelines across...