22 of 22 Gen AI Software Engineer Jobs in the UK

Citi's Markets team-a group of passionate and talented engineers, product managers, and tech specialists transforming ambiguous ideas into cutting-edge, scalable products. We specialize in Generative AI, backend engineering, and cloud-native architectures to develop mission-critical systems at a global scale. Our team is at the forefront of innovative AI-powered applications, large … Java, Python, Golang, Spring Boot, Flask, and Kubernetes. We focus on integrating RAG-powered LLMs, implementing advanced vector search (FAISS, Milvus, Pinecone), and building scalable and high-performance AI-driven solutions. You Might Be a Good Fit If You: Have deep hands-on software engineering expertise in Java or Python Thrive in a results-driven, flexible … environment Have experience with backend development for AI-powered systems Enjoy building high-performance APIs using Spring Boot, Flask Want to develop AI-powered applications leveraging RAG frameworks, Vector and Similarity search Have experience with Maven or Gradle for Java project dependency management Understand security best practices (Spring Security, SSO, authentication protocols) Are comfortable working with More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving … complex problems in the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring … real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead More ❯

the shift from being a broadcaster that speaks to our audiences to becoming a service that is directly shaped by them and designed around their wants and needs. AI is fundamental to this journey: enriching and expanding our content, improving journalist workflows and powering personalised experiences for millions of audience members. The new era of generative AI offers opportunities and challenges on a much larger scale. We are hiring software engineers across multiple seniority levels to join a cross-functional team that builds AI products for content production use cases, focusing on generative AI. This team builds products end-to-end, from innovative ideas to validated, scalable production systems serving thousands … of internal users and improving the experience of millions. We work with our Responsible AI team to keep public service values at the heart of these products, ensuring they are aligned with our editorial values, serve the public good and maintain audience trust. We are a friendly and supportive team, and we love that we get to work More ❯

Principal Software Engineer – GenAI and ML Up to £80k + Bonus Hybrid - Basingstoke (3 days in office per week) We are looking for a Principal Software Engineer to define and deliver the next phase of AI for our client. This role combines deep expertise in GenAI with strong hands-on … experience in classical machine learning. You will play a key role in building internal AI tools, integrating scalable ML systems, and shaping how AI is used across the business. Responsibilities Lead the development of GenAI solutions including LLMs, embeddings, and retrieval-based systems Design, build, and support internal platforms that help engineering teams adopt AI … Collaborate with engineers, product owners, and security teams to ensure solutions are secure and reliable Coach and mentor junior engineers and contribute to the overall strategy of the AI platform What You Will Need Hands-on experience with Generative AI technologies such as LLMs, prompt engineering, and vector-based search Strong foundation in traditional ML techniques More ❯

Principal Software Engineer – GenAI and ML Up to £80k + Bonus Hybrid - Basingstoke (3 days in office per week) We are looking for a Principal Software Engineer to define and deliver the next phase of AI for our client. This role combines deep expertise in GenAI with strong hands-on … experience in classical machine learning. You will play a key role in building internal AI tools, integrating scalable ML systems, and shaping how AI is used across the business. Responsibilities Lead the development of GenAI solutions including LLMs, embeddings, and retrieval-based systems Design, build, and support internal platforms that help engineering teams adopt AI … Collaborate with engineers, product owners, and security teams to ensure solutions are secure and reliable Coach and mentor junior engineers and contribute to the overall strategy of the AI platform What You Will Need Hands-on experience with Generative AI technologies such as LLMs, prompt engineering, and vector-based search Strong foundation in traditional ML techniques More ❯

Senior Software Development Engineer - GenAI, Amazon Ads - Creative X Job ID: 2979870 | Amazon Development Centre (Scotland) Limited - A64 How can Amazon improve the advertising experience for customers around the world? How can we help advertisers and customers find each other in a meaningful way? Amazon Ads creates and transforms the connection between retailers/service providers … and are looking for a team that drives results to help influence Amazon business decisions, this is the right place for you. Our team is seeking a Senior Software Engineer to help build the next generation of AI-based Judge systems that identify and correct issues with Advertiser creatives. Working with scientists and other … engineers, you will bridge AI research and real-world applications. You will provide technical leadership and execute systems that drive revenue and reduce customer frustration by providing smart, automatic guardrails for both advertiser and AI-generated creatives and assets. Key Responsibilities Deliver adaptable software solutions in undefined environments. Collaborate with AI researchers More ❯

About this role We are seeking a talented software engineer who deeply proficient with python to join our dynamic and growing team at Writer. As a key member of our engineering team, you will play a crucial role in building the genAI software. Your primary focus will be on developing a state-of-the-art platform … that harnesses generative AI technologies and you will deliver seamless and scalable solutions. You will work closely with cross-functional teams to design, implement, and maintain features that enhance the user experience, drive product growth, establish best practices, and integrate cutting-edge AI capabilities. ????️ Your responsibilities Design and develop robust and scalable generative AI … and modern web frameworks. Work with cloud platforms such as AWS, GCP, or Azure to deploy and scale applications. Develop and integrate high-performance, low-latency APIs for AI-driven features. Collaborate with AI researchers to implement generative models in production. Ensure code quality through testing, peer reviews, and continuous integration. Participate in architectural design discussions More ❯

Software Engineer - Security Automation, GenAI, AWS AppSec Security Amazon Web Services (AWS) is one of Amazon’s fastest growing businesses. We are passionate about thinking big, innovating on behalf of our customers, and tackling problems at scale. Cloud computing is disrupting, and we are eagerly seeking talented, entrepreneurial-minded individuals to join us as we continue … the internet, and you will own the customer experience for the cloud based tools they use. The AWS Application Security Team is looking for a curious and motivated engineer and leader to build great automations, generative AI tools, workflows, and back-end engines for our customers. We own protecting customers and hardening all the services and … customers. You will be responsible building tooling that AWS AppSec teams use to help facilitate security reviews during their partnerships with AWS Product Teams. In this role, a Software Engineer must produce results in the face of ambiguity and imperfect knowledge, and foster constructive dialogue and seek resolution when confronted with disagreement. They are also expected More ❯

Software Engineer - GenAI Up to £55k + 10% Annual Bonus Basingstoke, Hampshire Hybrid (3 days in per week) Must have a proven interest or personal projects using AI. middle has partnered exclusively with a key client to find a Software Engineer with GenAI knowledge. This team will support the continuous development of … a brand-new division who are building an internal AI Chatbot, AI workflows and automation tools. They consist of a team of Engineers who have designed, built, and implemented an internal AI chatbot to help secure, automate and expedite business processes. If you are a strong React Developer with a keen interest or proven … commercial knowledge of AI, Chatbots or GPT, this is likely the perfect role, project, people and business for you. The ideal Developer will have: 3+ years experience as a React Developer Must have an interest or personal project examples using AI. Experience as a full-stack developer within the JavaScript framework - TypeScript, React (Next.js) and Node.js. Knowledge or More ❯

Software Engineer - GenAI Up to £55k + 10% Annual Bonus Basingstoke, Hampshire – Hybrid (3 days in per week) Must have a proven interest or personal projects using AI. middle has partnered exclusively with a key client to find a Software Engineer with GenAI knowledge. This team will support the continuous development of … a brand-new division who are building an internal AI Chatbot, AI workflows and automation tools. They consist of a team of Engineers who have designed, built, and implemented an internal AI chatbot to help secure, automate and expedite business processes. If you are a strong React Developer with a keen interest or proven … commercial knowledge of AI, Chatbots or GPT, this is likely the perfect role, project, people and business for you. The ideal Developer will have: 3+ years’ experience as a React Developer Must have an interest or personal project examples using AI. Experience as a full-stack developer within the JavaScript framework - TypeScript, React (Next.js) and Node.js. Knowledge or More ❯

As the most senior engineer of a small ‘skunkworks’ style AI team within our broader Product Engineering teams, you will work closely with our Director of Engineering, Head of Product, engineers, product managers, designers and stakeholders to help solve customers' problems where we think generative AI can help make a difference and directly impact … week in the office (Mon, Wed & Thurs) in West London. In this role, you can expect to: Work directly with stakeholders to iteratively and quickly ship improvements to AI tools, ranging from tooling to improve the efficiency our Customer Love team and help customers get answers quicker, to automation tooling for internal teams, to working closely with other … MVP mindset so we can test and learn quickly, shipping early versions of products to rapidly get feedback. Work with our Director of Engineering every day directly on AI projects. Work with our Head of Product to help shape the AI roadmap. Gain real-world experience with cutting edge tools, deploying them at scale. Truly embody More ❯

As the most senior engineer of a small ‘skunkworks’ style AI team within our broader Product Engineering teams, you will work closely with our CTO, Head of Product, engineers, product managers, designers and stakeholders to help solve customers' problems where we think generative AI can help make a difference and directly impact their (and … week in the office (Mon, Wed & Thurs) in West London. In this role, you can expect to: Work directly with stakeholders to iteratively and quickly ship improvements to AI tools, ranging from tooling to improve the efficiency of our Customer Love team and help customers get answers quicker, to automation tooling for internal teams, to working closely with … MVP mindset so we can test and learn quickly, shipping early versions of products to rapidly get feedback. Work with our Director of Engineering every day directly on AI projects. Work with our Head of Product to help shape the AI roadmap. Gain real-world experience with cutting edge tools, deploying them at scale. Truly embody More ❯

Software Engineer - GenAI Apply fast, check the full description by scrolling below to find out the full requirements for this role. Up to £55k + 10% Annual Bonus Basingstoke, Hampshire Hybrid (3 days in per week) Must have a proven interest or personal projects using AI. middle has partnered exclusively with a key client to find … a Software Engineer with GenAI knowledge. This team will support the continuous development of a brand-new division who are building an internal AI Chatbot, AI workflows and auto... JBLK1_UKTJ More ❯