42 senior ai engineer jobs found

Senior AI Engineer (Full Stack AI & Agentic Systems) - Python/React/FastAPI - OUTSIDE IR35 - Telco Sector - Enterprise AI Platform Tecknuovo is a digital technology consultancy with a Deliberately Different approach. We believe great outcomes come from great people, not just great technology. We move quickly, work collaboratively, and ensure our clients are left with Zero Dependency at the end of every engagement. What you'll be working towards: We're looking for an experienced Senior AI Engineer to join a strategic enterprise AI programme supporting the continued evolution of a large-scale AI platform. This engagement focuses on developing and scaling next-generation AI capabilities that provide conversational access to enterprise data and services through Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) and Agentic AI. You'll play a key role in shaping the future direction of the platform, helping to define AI architecture, governance...

Senior AI Engineer (Full Stack AI & Agentic Systems) - Python/React/FastAPI - OUTSIDE IR35 - Telco Sector - Enterprise AI Platform Tecknuovo is a digital technology consultancy with a Deliberately Different approach. We believe great outcomes come from great people, not just great technology. We move quickly, work collaboratively, and ensure our clients are left with Zero Dependency at the end of every engagement. What you'll be working towards: We're looking for an experienced Senior AI Engineer to join a strategic enterprise AI programme supporting the continued evolution of a large-scale AI platform. This engagement focuses on developing and scaling next-generation AI capabilities that provide conversational access to enterprise data and services through Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) and Agentic AI. You'll play a key role in shaping the future direction of the platform, helping to define AI architecture, governance...

Senior Agentic AI Engineer / AI Orchestrator 3- month rolling contract | Outside IR35 / B2B | Fully remote | UK working hours | Start within 4 weeks *MUST BE BASED IN THE UK Evantis Technology is looking for a senior, hands-on engineer to help a confidential client establish an AI-first software-delivery model. You’ll design and operate multi-agent coding workflows covering specification, implementation, testing, review and release—while ensuring humans retain control of key technical and production decisions. We’re looking for experience in: Orchestrating multiple coding agents in parallel. Claude Code, Codex or comparable coding-agent tooling. Shared context, memory, MCP, tooling and agent handovers. Human approval gates, evaluations, guardrails, observability and failure recovery. Delivering measurable improvements in engineering speed, quality or capacity. Helping established engineering teams adopt these working practices. This...

Role: Senior Applied AI Engineer (Private Sector Contractor) Rate: £700-£900 per day, dependent on experience Location: Hybrid: 2 days a week on site at Harwell, Oxfordshire; remainder remote (UK-based) Engagement: Contract, outside IR35: initial [6]-month term with strong likelihood of extension Start: Immediate Start A note from the Founders Oxford Dynamics is at an inflection point. We build frontier AI for environments where the cost of a wrong decision is high: defence and national security, critical infrastructure, and commercial organisations making high-stakes decisions on complex data. We are growing fast, and the constraint on how fast is no longer ideas or opportunity. It is whether the systems we ship are good enough for the people who stake decisions on them. That is where you come in. We need engineers who can build the systems this mission depends on, and build them to a standard that holds when the answer has to be right. You will be trusted...

Role: Senior Applied AI Engineer (Defence Contractor) Rate: £700-£900 per day, dependent on experience Location: Oxford / London Engagement: Contract, outside IR35: initial 6-month term with strong likelihood of extension Start: Immdediate start. Hybrid, with regular time on site in Oxford or London Security clearance: You must be eligible for UK security clearance (BPSS and SC. We require applicants to hold UK passport and 5 years of continuous UK residency. We can sponsor clearance for the right candidate, but given the contract nature of this role we strongly prefer candidates who already hold an active, transferable SC; DV is an advantage. If you are not eligible, we will not be able to progress your application. A note from the Founders Oxford Dynamics is at an inflection point. We build frontier AI for environments where the cost of a wrong decision is high: defence and national security, critical infrastructure, and commercial organisations making...

JOB TITLE Senior AI Engineer - Machine Learning (Computer Vision) LOCATION North London - hybrid SALARY £650 per day outside IR35 LENGTH 6 months ABOUT THE BUSINESS Our client is a leading digital commerce organisation undergoing a significant technology transformation. This is an exciting opportunity to join a business at the forefront of AI adoption, helping to build scalable solutions that enhance customer experiences, improve operational efficiency, and drive future growth. THE SENIOR AI ENGINEER - MACHINE LEARNING (COMPUTER VISION) OPPORTUNITY Design, develop and deploy AI-powered solutions using deep learning, computer vision, large language models (LLMs), and generative AI technologies. Build and maintain scalable data pipelines, ensuring high standards of data quality, governance, and reliability. Develop multimodal AI models that combine visual,...

Senior React/Node.JS engineer + LLM's - 6 month contract - £500-£600 per day Greenfield application Company Description Working with a highly successful fintech company specialising in global payments on a greenfield application. Role Description We are seeking a Senior React/Node.JS Engineer with experience building with LLMs. This is a fully remote role which can be based across Europe,.The position entails developing, maintaining, and optimizing web applications using Angular and Node.JS technologies, collaborating with cross-functional teams, and ensuring code quality through best practices. The successful candidate will play a crucial role in designing and implementing scalable payment solutions aligned with business requirements. Qualifications Strong proficiency in React and Node.JS frameworks Strong proficiency with Typescript Strong experience building with LLM's and Data modelling Proficiency in front-end technologies like HTML, CSS, and...

🤖 Senior Android Engineer – Fintech - 6m OUTSIDE contract 💷 Up to £500/day | Outside IR35 📆 6-Month Contract 📍 Central London – 3 days onsite We’re working with a leading fintech scale-up looking for an experienced Senior Android Engineer to join their mobile engineering team on an initial 6-month contract. 📱 This is a highly product-focused role, working on a major Android product build and creating polished, data-rich mobile experiences. You’ll have genuine end-to-end ownership , from initial idea and technical approach through to testing and release. 👨 💻 A senior doer This is an important one: they need someone senior who is still very close to the code. They’re not looking for a hands-off Lead, they want a highly technical, hands-on Senior Android Engineer who can make good architectural decisions but still enjoys getting stuck into the implementation. You’ll also need to be a confident, clear communicator who can articulate your...

URGENT | AWS Data Engineer - Migration We're seeking a strong & hands-on AWS Data Engineering contractor, ASAP start, for an urgent replacement contract Rate: Up to £500-525 per day, Outside IR35 Working Patterns: Remote-first, London (up to 1 day p/w on-site). Contract: 3-6 months (likely extension) Sector: Financial Services About: We're supporting a major cloud transformation programme focused on migrating a large-scale legacy ETL estate consisting of several thousand batch jobs from Ab Initio to a modern, serverless AWS data platform. This is a hands-on Senior Data Engineer role where you'll play a key part in defining migration patterns and delivering production-ready AWS Glue solutions. Person Requirements: Strong AWS Data Engineer - ideally AWS Certified. Ideally, you'll bring proven experience delivering Ab Initio → AWS Glue (PySpark) migration programmes Strong hands-on AWS Data Engineering expertise, particularly AWS Glue ,...

AWS Data Engineer - MigrationWe're seeking a strong & hands-on AWS Data Engineering contractor, ASAP start, for an urgent replacement contract  Rate: Up to £500-525 per day, Outside IR35  Working Patterns: Remote-first, London (up to 1 day p/w on-site).  Contract: 3-6 months (likley extension) Sector: Financial Services About:  We're supporting a major cloud transformation programme focused on migrating a large-scale legacy ETL estate consiting of several thousand batch jobs from Ab Initio to a modern, serverless AWS data platform. This is a hands-on Senior Data Engineer role where you'll play a key part in defining migration patterns and delivering production-ready AWS Glue solutions.  Person Requirments: Strong AWS Data Engineer - ideally AWS Certified.  Idelaly, you'll bring proven experience delivering Ab Initio → AWS Glue (PySpark) migration programmes Strong hands-on AWS Data Engineering expertise, particularly AWS Glue, S3, Athena and serverless data platforms....

Senior Full Stack .NET Developer - Contract C# .NET ASP.NET Core Vue 3 TypeScript REST APIs £400-£450 per day Outside IR35 Remote UK Contract We're looking for an experienced Senior Full Stack .NET Developer/.NET Contractor to join a global SaaS engineering environment, working across Back End services and a modern web application. This is a UK-based remote contract working with an international engineering team across the UK, New Zealand, US and Canada. You MUST be UK based to be considered. The Role You'll be hands-on across C#, .NET, ASP.NET Core Web APIs, Vue 3 and TypeScript, developing new functionality and enhancing an established SaaS platform. You'll work across: C#/.NET/ASP.NET Core/.NET 5+ Vue 3/TypeScript/Composition API/ REST APIs & Back End services Automated testing & maintainable code GitHub & modern development practices AI-assisted development tools such as Claude Code You'll be joining an established...

AWS Data Engineer - Migration We're seeking a strong & hands-on AWS Data Engineering contractor, ASAP start, for an urgent replacement contract Rate: Up to £500-525 per day, Outside IR35 Working Patterns: Remote-first, London (up to 1 day p/w on-site). Contract: 3-6 months (likely extension) Sector: Financial Services About: We're supporting a major cloud transformation programme focused on migrating a large-scale Legacy ETL estate consiting of several thousand batch jobs from Ab Initio to a modern, serverless AWS data platform. This is a hands-on Senior Data Engineer role where you'll play a key part in defining migration patterns and delivering production-ready AWS Glue solutions. Person Requirments: Strong AWS Data Engineer - ideally AWS Certified. Idelaly, you'll bring proven experience delivering Ab Initio AWS Glue (PySpark) migration programmes Strong hands-on AWS Data Engineering expertise, particularly AWS Glue , S3 , Athena and...

AWS Data Engineer - Migration We 're seeking a strong & hands-on AWS Data Engineering contractor, ASAP start, for an urgent replacement contract Rate: Up to £500-525 per day, Outside IR35 Working Patterns: Remote-first, London (up to 1 day p/w on-site). Contract: 3-6 months (likley extension) Sector: Financial Services About: We 're supporting a major cloud transformation programme focused on migrating a large-scale legacy ETL estate consiting of several thousand batch jobs from Ab Initio to a modern, serverless AWS data platform. This is a hands-on Senior Data Engineer role where you 'll play a key part in defining migration patterns and delivering production-ready AWS Glue solutions. Person Requirments: Strong AWS Data Engineer - ideally AWS Certified. Idelaly, you 'll bring proven experience delivering Ab Initio AWS Glue (PySpark) migration programmes Strong hands-on AWS Data Engineering expertise, particularly AWS...

What’s Yonder? “It's as if Time Out, Amex and Monzo had a baby” - Will T, Yonder Member Yonder combines credit and debit in one membership that’s fair, flexible and actually enjoyable. No jargon. No dusty points system. Just rewards that actually feel rewarding, from bao to beer to a boarding pass. The engineering team sits at the heart of the company; we work in squads alongside product and design, and closely with risk, compliance, operations and partnerships. Sounds cool. What’s my part in this? We’re looking for an experienced Senior Product Engineer on a 3-month contract to add delivery capacity to our engineering team. The work is primarily Scala backend, but we don’t believe in rigid boundaries; everyone is encouraged to contribute wherever the problem takes them, whether that’s infrastructure, the mobile app (React Native) or the webapp (Next.js). You’ll be working alongside a small engineering...

Senior AWS DevOps Engineer – IaC, Serverless, CDK, Terraform, Python, OIDC, IAM Rules – Outside IR35 A standout contract opportunity with a global, market-leading B2B SaaS organisation undergoing a greenfield platform build involving AI adoption, and modern engineering practices. We’re expanding our UK DevOps function and looking for a Senior AWS DevOps Engineer with extensive IaC, serverless and security experience who can operate with high autonomy, make strong technical decisions, and communicate clearly across both technical and non-technical teams. What You’ll Be Doing: You’ll be a key contributor in designing, delivering, and supporting the cloud foundations that power our products and internal platforms, with a strong emphasis on Infrastructure as Code , AWS serverless engineering , and event-driven architectures . You’ll be expected to work with seniority from day one, owning problems end-to-end and driving solutions proactively. Designing,...

Senior C# Engineer – .Net, Typescript, Lambda, API Gateway, SQS, SNS, Cognito  ? £700 – £800 per day Outside IR35  • 100% Remote  • 8-month rolling contract Play a pivotal role in architecting and delivering a major greenfield B2B SaaS platform as a senior, hands-on, backend C# engineer. Expect serious backend engineering, high-performance event driven systems, and production grade AWS serverless delivery with an elevated focus on API engineering , identity & access , and secure-by-default service design . You’ll also gain hands-on experience with Claude Code and modern agentic development workflows. Role Overview: You’ll act as the technical spearhead for a greenfield product build, reporting to the Director of Engineering and working closely with their IAM Technical Lead. In addition to deep backend C#, API engineering and AWS skills, without being a security expert, you’ll ideally have some experience of AWS Cognito, AWS IAM and some...

Senior C# Engineer - .Net, Typescript, Lambda, API Gateway, SQS, SNS, Cognito - OUTSIDE IR35 £700 - £800 per day Outside IR35 100% Remote 8-month rolling contract Play a pivotal role in architecting and delivering a major greenfield B2B SaaS platform as a senior, hands-on, Back End C# engineer. Expect serious Back End engineering, high-performance event driven systems, and production grade AWS serverless delivery with an elevated focus on API engineering , identity & access , and secure-by-default service design . You'll also gain hands-on experience with Claude Code and modern agentic development workflows. Role Overview: You'll act as the technical spearhead for a greenfield product build, reporting to the Director of Engineering and working closely with their IAM Technical Lead. In addition to deep Back End C#, API engineering and AWS skills, without being a security expert, you'll ideally have some experience of AWS Cognito, AWS IAM...

Senior AWS DevOps Engineer - IaC, Serverless, CDK, Terraform, Python, OIDC, IAM Rules - Outside IR35 A standout contract opportunity with a global, market-leading B2B SaaS organisation undergoing a greenfield platform build involving AI adoption, and modern engineering practices. We're expanding our UK DevOps function and looking for a Senior AWS DevOps Engineer with extensive IaC, serverless and security experience who can operate with high autonomy, make strong technical decisions, and communicate clearly across both technical and non-technical teams. What You'll Be Doing: You'll be a key contributor in designing, delivering, and supporting the cloud foundations that power our products and internal platforms, with a strong emphasis on Infrastructure as Code , AWS serverless engineering , and event-driven architectures . You'll be expected to work with seniority from day one, owning problems end-to-end and driving solutions proactively. Designing, building,...

Principal Full Stack Engineer - Azure AI Search & Elasticsearch 6-month contract Outside IR35 London - 2 days onsite We are looking for a Principal Full Stack Engineer to lead the design and delivery of enterprise search and AI-driven applications. This is a senior, hands-on contract combining search architecture, full-stack development, Microsoft Azure, DevOps and Generative AI. Key responsibilities Design and optimise enterprise search solutions using Elasticsearch and Azure AI Search. Define Elasticsearch cluster architecture, index mappings, aggregation queries and life cycle strategies. Improve search relevance, indexing performance, query latency and platform resilience. Build Azure AI Search solutions using indexers, custom skillsets, vector search and semantic ranking. Develop responsive, search-focused applications using JavaScript/TypeScript and React, Angular or Vue. Design and integrate APIs and Back End services across the Azure ecosystem. Build...

Senior Databricks Data Engineer Contract | Outside IR35 | 3-6 Months | October start date The Role We're supporting a growing Data & AI consultancy that has secured several new Databricks engagements across both public and private sector clients. Due to continued project wins, they're looking to add multiple experienced Databricks Data Engineers who can hit the ground running on enterprise data platform projects. You'll be responsible for designing and building scalable Databricks solutions, developing modern Lakehouse architectures and delivering production-ready data pipelines. Responsibilities Design and develop Databricks Lakehouse solutions Build Bronze, Silver and Gold data models Develop scalable ETL/ELT pipelines using Python and SQL Work with Delta Lake and modern Databricks features Optimise performance across Spark workloads Collaborate with architects and client stakeholders Support CI/CD and deployment best practices Essential...