24 of 24 Senior Software Engineer Jobs in the City of London

Senior Software Engineer: Sports Betting Up to £120,000 + Bonus + Excellent Benefits London - 5 Days On-Site | Python | Java | AI | Low Latency | Distributed Systems Build software where performance, mathematics and real-time decision-making genuinely matter. We're partnering with a highly technical sports … betting business continuing to invest in its engineering function. They're looking for Senior Software Engineers to work on complex backend systems operating across real-time data, quantitative problems and high-performance distributed architecture. This is an opportunity for engineers who enjoy difficult technical problems rather than simply ...

Senior Software Engineer About Us Exam Papers Plus is one of the UK's best-known names in 11+ and high-stakes exam preparation, trusted by over 100,000 families. We have built a large bank of exam resources, mapped to subject, question type, skill and difficulty … each child's learning profile and puts that material in front of children and parents in a guided way. About the Role As Senior Software Engineer you will be a hands-on, full-stack contributor on our core platform, working closely with our Lead Engineer ...

Senior Software Engineer £50000-70000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Software Engineer (Java/Fullstack) UK wide - Occasional Travel Monthly £50,000 - £70,000 Currently working with a multinational professional services and technology organisation … search of Software Engineers (Java focused) to join their Data & Technology tea click apply for full job details ...

Senior Software Engineer I – Search and AI Platform About the Team Our team is dedicated to unlocking the rich knowledge embedded within Elsevier’s content through our rich data platform; this empowers researchers, clinicians, and innovators worldwide to gain new insights, make informed decisions, and accelerate progress … scalable, secure, and production-ready AI services — enabling downstream teams to integrate cutting-edge GenAI features with confidence. The Role We are seeking a Senior Software Engineer I with a passion for generative AI and platform architecture. In this role, you will drive architectural decision ...

Senior Software Engineer - (Java/AI) Brokerage Services IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation … platform to define what comes next. Join us at IG – the future gets built here. Your team We’re looking for a Senior Engineer to join our Brokerage Services team to push hard on AI across Brokerage Services engineering: AI-assisted coding, testing and deployments, shift left ...

looking for a Senior Software Engineer to join a growing AI team and take ownership of the application and integration layer behind a new generation of AI-powered products. This is a genuinely full-stack engineering role, combining production-grade backend development, API design, AI integrations … advantageous, although deep ML expertise isn't required. This is an opportunity to have genuine ownership over how AI capabilities become usable, scalable software products. You'll be joining an AI-focused engineering environment where you can work at the intersection of software engineering, APIs, cloud infrastructure ...

Senior Software Engineer: Sports Betting Up to £120,000 + Bonus + Excellent Benefits London - 5 Days On-Site Python Java AI Low Latency Distributed Systems Build software where performance, mathematics and real-time decision-making genuinely matter. We're partnering with a highly technical sports ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with ...

International electronic trading organisation seeks to hire a skilled Senior C++ Developer with extensive experience in low latency systems to join their cutting-edge team. About the Role - Design, develop, and optimize high-performance trading systems using C++. Implement and enhance low latency solutions to ensure optimal trading execution. … traders, quants, and other developers to deliver robust trading applications. Analyse and troubleshoot complex system issues to ensure seamless trading operations. Responsibilities for the Senior C++ Software Engineer Proven expertise in C++ development with a strong emphasis on low latency systems. In-depth knowledge ...

looking for a Senior Software Engineer to join our global team to be responsible for the quality, development, and execution of our software products. You will be part of a technology department that is comprised of a successful and multidisciplinary group of professionals located across … tests/collaborate with automation engineers to ensure business needs are met, and allow for regression testing Work closely with users to provide personalized software support as needed Stay updated on emerging technologies and industry trends to continuously improve our backend infrastructure Document application support and operational procedures Mentor ...

Impact and Responsibilities We are seeking a Senior Software Engineer who thrives on untangling complex systems and modernising core infrastructure without breaking production. This is an exciting opportunity to modernise core C#/SQL systems! Extract legacy business logic, build clean services, and verify changes in shadow … Server stored procedures and backend logic with total precision ensuring client-money correctness is never compromised. What we're looking for in you Senior-level, hands-on experience in modern .NET (.NET 6+) paired with deep, comfortable familiarity with legacy .NET Framework 4.8 (ASP.NET MVC 5, WebAPI 2, Entity ...

Elsevier seeks a Senior Software Engineer I for the AI Platform team, focusing on generative AI services and platform architecture. You will lead architectural decisions, design scalable backend systems, and mentor engineers in GenAI patterns. Work with Python and Java, Kubernetes (EKS), and cloud-native architectures ...

simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires … development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development, enjoy solving complex problems, and are ready to lead innovative projects, Join our dynamic team and contribute to building transformative solutions that make ...

Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers to ensure scalability, security and performance. If you are passionate about software development, enjoy ...

Portfolio Credit Control is seeking a Senior Software Engineer to own the application and integration layer for a new generation of AI-powered products. The role spans backend, API design, MCP integration and frontend development with React and TypeScript. You will design scalable REST/GraphQL APIs ...

Group seeks a Senior Software Engineer to accelerate AI across Brokerage Services, focusing on AI-assisted coding, testing, and deployments within a Java backend ecosystem. You will own features end-to-end, contribute to observability, and drive automation while collaborating with product and security to align with ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software ...

T. Rowe Price Labs in London is seeking a senior Software Engineer to design, build, and deliver production-grade AI systems. You will own substantial components of technical delivery and collaborate with product owners and business stakeholders to mature AI products for production use. You will mentor ...

Trayport seeks Senior Software Engineers to join the Joule Direct team, building a high-throughput, low-latency energy trading platform. You will collaborate with Product Managers, Testers and DevOps to deliver reliable, scalable systems and drive improvements across the stack. You will mentor engineers, design complex features, improve ...

full stack developer (React Node) looking to work on our cutting-edge frontends for a healthcare mission driven organization? Are you a collaborative Sr Software Engineer with an automation mindset — someone who looks for ways to build tools, agents, or AI-assisted workflows to multiply your … large web monoliths Have taken an application(s) through the full project life cycle process. Possess extensive experience utilizing the Agile delivery process for software development. Experience collaborating with both technical and not technical professionals to drive innovation. Possess an understanding of crucial applications/products in the Science ...

client is a global investment management company. Job Title Senior Full Stack Software Engineer The Role Our client, one of the world's largest investment management companies, serves individual investors, institutions, employer-sponsored retirement plans, and financial professionals click apply for full job details ...

JPMorgan Chase & Co. in City of London is seeking a Software Engineer III to join the Corporate & Investment Bank Payments tech team. You will be a seasoned member of an agile team designing trusted market-leading technology products with security, stability, and scalability. You will contribute across … SDLC, develop secure production code, and drive continuous improvement of software applications through data analysis and architecture reasoning. #J-18808-Ljbffr ...

Role Overview TP ICAP are looking for a Senior Java Developer delivering low‐latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‐time messaging. In this role, you will be responsible for designing, building, and optimising mission‐critical trading services across multiple ...

guidelines. Minimum Qualifications: Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience. 8+ years of relevant professional software development experience with a strong focus on backend development, using Java or Kotlin, building and operating high-performance, high-throughput, highly available, and scalable ...