16 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 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 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...

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,...

Senior Databricks Architect/Lead Databricks Engineer - Salesforce Data Architecture exp is a MUST Remote (UK) £700/day Outside IR35 Initial 12-Month Contract | Long-Term Programme | Poosible Extension We're seeking an exceptional Senior Databricks Architect with a strong hands-on Data Engineering background to join a major long-term transformation programme. This is not a pure architecture role. You'll be a Databricks specialist who remains close to the technology, designing and building enterprise-scale data solutions while driving engineering excellence across critical data platforms. You'll take ownership of delivering robust, scalable, and production-grade data solutions within a modern Databricks ecosystem, ensuring platforms are governed, secure, maintainable, and optimised for long-term growth. Key Responsibilities Architect, build and optimise enterprise-grade data solutions within Databricks Design and...

Tech Lead - Python/Financial Modelling/AI - Pensions £650 - £750 per day Outside IR35 6 Month Contract Remote (Occasional London Travel) Overview I'm currently working with a leading financial services technology consultancy that is looking to bring in an experienced Tech Lead to support the delivery of modern software solutions for a major pensions client. This role sits at the intersection of financial modelling and modern engineering, supporting the development of platforms used for forward-looking financial analysis, including discounted cashflow projections and Monte Carlo simulations. This is a hands-on leadership role, splitting your time between full-stack engineering and leading a team of senior developers. You'll also play a key role in shaping AI-assisted and agentic development workflows, helping embed these approaches into day-to-day engineering practices. The Role You will lead a team of four experienced engineers while remaining actively involved in the...

Tech Lead - Python / Financial Modelling / AI - Pensions £650 - £750 per day Outside IR35 6 Month Contract Remote (Occasional London Travel) Overview I'm currently working with a leading financial services technology consultancy that is looking to bring in an experienced Tech Lead to support the delivery of modern software solutions for a major pensions client. This role sits at the intersection of financial modelling and modern engineering, supporting the development of platforms used for forward-looking financial analysis, including discounted cashflow projections and Monte Carlo simulations. This is a hands-on leadership role, splitting your time between full-stack engineering and leading a team of senior developers. You'll also play a key role in shaping AI-assisted and agentic development workflows, helping embed these approaches into day-to-day engineering practices. The Role You will lead a team of four experienced engineers while...

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...