26 to 50 of 72 C# Jobs in the City of London

full trade lifecycle Contribute to a culture of innovation, transparency, and continuous learning Qualifications 3+ years of software engineering experience in Go, Java, C++, C#, or Python B.S. or M.S. in Computer Science, related field, or equivalent experience Experience working with complex backend systems Strong problem-solving skills ...

software, run implementation workshops, produce technical documentation and handover materials, gather requirements, and manage data migration and transformation. Strong SQL, Microsoft .NET, ASP.NET and C# skills, plus experience in legal tech or information governance, are essential to help the company grow. #J-18808-Ljbffr ...

London is seeking a Software Engineer to design and maintain backend services for crypto trading. This role requires expertise in Go, Java, C++, C#, or Python, and offers a hybrid work environment. Ideal candidates will have problem-solving skills and a proactive mindset, along with a degree in computer science ...

integrations fit together in a Microsoft-first environment, guiding technical decisions and roadmaps. The role requires a strong background in software development (.NET/C#) and proven ability to translate #J-18808-Ljbffr ...

This role will bridge the technology-business gap and shape the future with innovative user experiences. The ideal candidate will have strong proficiency in C#/.NET, Azure, and experience in building scalable applications. Responsibilities include developing cloud-based solutions, implementing APIs, and harnessing modern DevOps practices. #J-18808-Ljbffr ...

roadmap The Person: * Experienced Solutions Architect, Technical Architect or similar with strong Dynamics 365 expertise * Previous Microsoft software development background, such as .NET/C# * Strong understanding of Azure, APIs, integrations and modern application architecture * Experience designing solutions across complex environments with multiple interconnected systems * Able to combine strong technical ...

whole engineering team and our customers and prospects to build a delightful product that solves real problems. Working across the stack, mostly in C# on .NET Core 8 but also Terraform and building out our frontend in HTMX. All the good practices you'd expect from technical co-founders ...

GCS is seeking an Application Support Specialist for a Tier 1 bank. The role is a 6-month hybrid position requiring 3 days per week in Canary Wharf, London, providing production support to development teams ...

will work in a hybrid, agile environment, collaborating with stakeholders, IT teams and production support to deliver scalable RPA and integration work using C#/.NET and SQL. This hands-on role combines RPA development, application development and production support to #J-18808-Ljbffr ...

work directly with the founders and CTO to ship features daily for real customers and challenging use cases. You’ll code mostly in C# on .NET Core, with Terraform and HTMX frontend work, and you’ll help shape architecture, CI/CD and cloud deployments in a fast-paced, office ...

implement innovative AI models, working closely with cross-functional teams. The ideal candidate has over 6 years of software engineering experience and proficiency in C#, Node.JS, and AI technologies. The role emphasizes collaboration and continuous learning, offering competitive benefits such as annual leave and private healthcare. #J-18808-Ljbffr ...

strangler-fig migration, and collaborate with product and engineering teams in a hybrid London role. Ideal candidates have 6–10 years of .NET/C# experience, strong Azure expertise, and hands-on capability with AI-assisted development tools. #J-18808-Ljbffr ...

analysis. Strong understanding of probability and statistics. Experience with mathematical modelling and data analysis. Proficiency in one or more programming languages such as Python, C#, C++ or Java. Strong analytical and problem-solving skills. Excellent attention to detail and accuracy. Ability to work independently while also contributing effectively within ...

probability, statistics and mathematical modelling . Experience working with large datasets and performing detailed data analysis. Proficiency in one or more of Python, C#, C++ or Java . Experience within data science, quantitative analysis or statistical modelling . Strong analytical and problem-solving abilities. Excellent attention to detail and numerical ...

through custom development, evaluating software, or modifying existing solutions Designing, developing, and maintaining custom web applications using Microsoft .NET (.NET Core, .NET Framework) with C#, ASP.NET Core, and SQL Server Implement responsive, user-friendly front-ends Build and consume REST APIs for integration Designing and building AI-powered features … application architecture and design patterns Minimum of 3 years of application development experience using Microsoft .NET (.NET Core or .NET Framework) with C#, ASP.NET Core, and SQL Server Minimum of 2 years of experience building and consuming REST APIs Minimum of 2 years of experience in HTML, JavaScript ...

Experience with CSS pre-processors e.g. Tailwind Back-end skills Proficiency in backend programming languages (Typescript and/or other OOP language such as c#/Java) Strong database knowledge (SQL and NoSQL) Proficiency with RESTful APIs and GraphQL APIs and Websockets Experience with microservices architecture Knowledge of version control … proactive approach. Strong analytical ability and innovative problem solving skills. Software Design Patterns. Source control (Git). Desired: OOP SOLID Principles. Demonstrable experience of C# (.Net 8+) in a professional environment. Contribution to open-source projects. Experience of regulatory driven projects. Knowledge of Financial Markets, Systems and Over the Counter ...

broker, the world’s leading provider of OTC data, and an award‐winning all‐to‐all trading platform. Role Overview As a Full Stack C# Engineer, you will play a key role in designing and delivering high‐quality, scalable applications that power critical business functions. This position requires strong technical … experience in full‐stack development within enterprise environments. Proficiency in front‐end technologies such as TypeScript and React. Strong back‐end experience with the C# language and SOLID principles. Good understanding of RESTful APIs. Experience with cloud platforms (AWS preferred) and containerization (Docker/Kubernetes). Knowledge of CI/ ...

cross-functional teams and trading SMEs. The role requires hands-on work on distributed, event-driven, cloud-native systems, with experience in .NET/C#, Docker, Kubernetes, AWS, and testing frameworks. #J-18808-Ljbffr ...

GCS Recruitment is seeking an Application Support Specialist for a Tier 1 bank on a hybrid, 6-month contract in Canary Wharf. The role pays £416 per day and requires hands-on production support across ...

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 mode with zero downtime to revenue flows. Extract business rules … scattered across C#, embedded JavaScript and undocumented SQL stored procedures into a clean, tested, dependency-free rules assemblies. Build new services cleanly. with proper Dependency Injection (DI), robust authentication/authorization, structured logging, and full observability. Work fluently across both legacy .NET Framework 4.8 (ASP.NET MVC5, WebAPI ...

engineering, or related field 8+ years of experience in software development, with a focus on building scalable and reliable systems Extensive knowledge of DotNet C#, LINQ, MS SQL, Entity Framework and related technologies Capable to use version control software such as GIT Knowledge of SOLID principles Knowledge of clean code ...

Backend Software Engineer/Developer (C# .Net AWS Python) London/WFH to £100k Would you like to join a growing and profitable start-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression … days a week. About you: You are an experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong C# backend development skills, ideally also Python coding skills You have a good knowledge of AWS You have experience of working on highly scalable systems ...

goal is to drive efficiency, speed up transactions, reduce risk, and improve the end-customer experience. Our platform is built on a proven C# and .NET foundation, and we're building what comes next on top of it. That means new frontier AI capabilities in TypeScript, sitting alongside a C# … there's never been a better time to join us. What You'll Do Identify the right problems to solve across a dual-stack C# and TypeScript backend, being intentional about choosing the right tool for the job. Implement microfrontend web applications in React and TypeScript, with ...

drive technical architecture, system design, and delivery using modern AWS cloud infrastructure and microservice design. Key Responsibilities Lead technical design, architecture, and high-quality C# code delivery. Build scalable, real-time microservices and RESTful Web APIs. Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines. Collaborate … with partner tech teams to scale platform performance. Required Skills Core Tech: Strong C#, ASP.NET/.NET Core, Web APIs. Messaging: Hands-on experience with RabbitMQ (or TIBCO/SignalR). Cloud & Tools: AWS (EC2) , Docker, Git/TeamCity. Concepts: Multithreading, async programming, SQL/NoSQL, automated testing. Nice ...

across time zones. The role requires a university degree in a highly analytical field, 3+ years in actuarial/modelling/software, and strong C# and OO programming skills. #J-18808-Ljbffr ...