14 senior service designer jobs found in London

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...

Senior Data Engineer | Outside IR35 | £450- £550 per day | Hybrid | London We are seeking a Senior Data Engineer/Developer to join a major Liquidity Reporting programme, delivering regulatory reporting solutions for large UK insurers. This is a hands-on role focused on building and enhancing a Databricks -based data engineering framework. You will design and develop scalable PySpark pipelines covering data ingestion, validation, transformation, and mapping, while creating reusable libraries and ensuring high engineering standards. You will also provide technical leadership, conducting code reviews, guiding offshore teams, and ensuring delivery quality aligns with architectural and regulatory requirements. Key Requirements: Strong experience with Databricks and PySpark Solid Azure data platform experience Proven ability to build reusable frameworks and libraries Experience leading code quality and working with offshore teams Desirable: Experience in...

Senior Data Engineer | Outside IR35 | £450- £550 per day | Hybrid | London We are seeking a Senior Data Engineer / Developer to join a major Liquidity Reporting programme, delivering regulatory reporting solutions for large UK insurers. This is a hands-on role focused on building and enhancing a Databricks -based data engineering framework. You will design and develop scalable PySpark pipelines covering data ingestion, validation, transformation, and mapping, while creating reusable libraries and ensuring high engineering standards. You will also provide technical leadership, conducting code reviews, guiding offshore teams, and ensuring delivery quality aligns with architectural and regulatory requirements. Key Requirements: Strong experience with Databricks and PySpark Solid Azure data platform experience Proven ability to build reusable frameworks and libraries Experience leading code quality and working with offshore...

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....

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...

Key Responsibilities Architect Solutions: Design scalable, high-performance Salesforce solutions across Sales, Service, and Experience Clouds. Integrations: Lead the design of complex enterprise integration patterns between Salesforce and external Legacy systems/ERPs. Governance & Best Practices: Enforce code quality, declarative vs. programmatic boundaries, and robust CI/CD deployment pipelines. Stakeholder Management: Act as the technical authority, translating complex technical concepts for senior business stakeholders and guiding the development team. What We're Looking For Proven track record as a Salesforce Technical or Solution Architect on large-scale enterprise deliveries. Strong expertise in Apex, LWC, integrations (MuleSoft/REST/SOAP), and data migration strategies. Deep understanding of Salesforce security models, sharing rules, and governance. Explicit experience operating under Outside IR35 guidelines, delivering defined outcomes independently. Relevant...

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...

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...

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...

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,...