51 to 72 of 72 C# Jobs in the City of London

join a high-performing technology team responsible for architecting, developing, and enhancing sophisticated trading and research systems. This role would suit a strong C#/.NET engineer who enjoys solving complex technical problems and wants to have genuine influence over the architecture and direction of the systems they build. … engineering best practices, while working closely with researchers, traders and other technical specialists. Key Responsibilities Design, develop and maintain high-performance applications using C# and modern .NET Take ownership of significant software development projects from initial design through to production Contribute to and lead architectural and technical design decisions Design ...

drive architecture and design for a high-throughput, low-latency transaction processing engine hosted on AWS. Key Responsibilities Lead technical design, system architecture, and C# code delivery. Build low-latency, real-time microservices and RESTful Web APIs. Implement multithreaded and asynchronous processing for high-volume data streams. Maintain high test … coverage (NUnit/Moq) and automated CI/CD pipelines. Requirements Core Tech: Strong C#, ASP.NET/.NET Core, Web APIs. Real-Time Data: Solid experience in multithreading , asynchronous programming , and low-latency/high-throughput processing. Messaging: Hands-on experience with RabbitMQ (or TIBCO/SignalR). Cloud & Tools ...

hour, multi‐region trading operations (follow‐the‐sun handover, timezone‐aware processing across London/New York/Singapore). Expert‐level C#/.NET (LTS): back‐end services with ASP.NET Core. Experience designing and delivering event‐driven, service‐oriented back‐end systems (message brokers, async workflows, API design ...

hour, multi-region trading operations (follow-the-sun handover, timezone-aware processing across London/New York/Singapore)Technical:Expert-level C#/.NET (LTS): back-end services with ASP.NET Core.Experience designing and delivering event-driven, service-oriented back-end systems (message brokers, async workflows, API design ...

C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# .NET. The Client would like meet candidates … pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills :- Minimum 3 to 5 years experience of Microsoft web technologies(C#, ASP.NETCore MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce clean, well ...

Ready to lead the reliability, scalability, and operational excellence of mission-critical platforms while shaping the future of Site Reliability Engineering? Would you like to mentor high-performing engineers, drive cloud modernization, and influence enterprise ...

Senior Full Stack Lead Engineer ReactJS, TypeScript, JavaScript, C#/.NET Banking London This is a new and exclusive opportunity for a Senior Full Stack Lead Engineer/software developer with expertise across ReactJS, TypeScript, JavaScript, C#/.NET to join this investment Banking client as they expand their full … stack software developer team in London city. Role details Title: Senior Full Stack Lead Engineer Technical stack: ReactJS, TypeScript, JavaScript, C#/.NET Employer: investment Banking Location: London City and home working hybrid 50/50% Permanent role, salary £90,000- £130,000 plus bonus This is a new opportunity ...

Nexus Jobs Limited is recruiting a C# .NET Software Developer for our client, a niche boutique broker specialising in FX, based in London. You will work on trading systems with FX and Fixed Income components, and collaborate closely with traders to deliver robust software. The role requires 3–5 years … experience with C# .NET, ASP.NET Core MVC and SQL Server, plus an understanding of FX instruments and possibly FIX protocol. #J-18808-Ljbffr ...

Build & Deployment Engineer - C#/.NET, Octopus Deploy & Secure Coding City of London - Hybrid (4 Days on-site, 1 day WFH each week) Inside IR35 Contract Are you a build and deployment engineer who can open up the C# code behind a pipeline and fix it yourself? That combination … Building and maintaining automated CI/CD pipelines and standard templates for application teams, across Windows and Linux environments Writing, reviewing and troubleshooting the C#/.NET code behind internal deployment integrations, APIs and automation tooling Diagnosing complex build and deployment failures across code, dependencies, build agents, artefact repositories ...

wider IT department. Core Technology Environment Java 25 server-side applications, supported by Python for simpler scripts. React web applications, SQL Server databases and C# native front ends. KDB time-series storage and analysis. Informatica UltraMessaging and Chronicle-based infrastructure. Influx and Grafana for system instrumentation and monitoring. Linux servers … technical discipline. Desirable experience: React, which is a key technology for the team. SQL databases and queries, including Microsoft SQL Server, Oracle or Sybase. C# GUI development. Python scripting or programming, potentially using libraries such as SciPy. KDB querying, management or maintenance. Chronicle, Influx or Grafana. Financial services experience ...

Agile team of 8 within a technology function of around 80 people, taking a hands-on coding lead with mentoring responsibilities. The position requires C#, Azure, SQL, and Angular expertise, plus mentoring and UK work experience. Familiarity with AI coding tools is a bonus. #J-18808-Ljbffr ...

C# Developer/Software Engineer (WPF) London to £125k Do you have strong C# and WPF UI development skills within Front Office trading environments? You could be progressing your career in a senior, hands-on C# Developer at the Investment Management arm of a global bank. As a C# Developer … your focus will be on developing sophisticated front office user interfaces using C# and WPF, supporting real-time, high-performance trading across primarily equities and options. You'll work closely with traders to understand requirements, translate them into robust technical solutions and continually enhance the platform. You'll be part ...

Mentor engineers and graduates; set quality and engineering standards through code review and design guidance What we're looking for Senior Software Engineering experience – C#/Python/SQL Strong technical depth in C# and full‐stack debugging across distributed systems Domain knowledge of investment operations, asset management workflows ...

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 ...

ICAP Group Services Ltd in London is seeking a skilled Full Stack C# Engineer to design, develop, and maintain scalable applications powering critical business functions. You will collaborate with product owners, architects, and engineers to implement microservices, APIs, and cloud-based solutions in a fast-paced, security-minded environment. … role requires strong TypeScript/React frontend skills, solid C# back-end experience with SOLID principles, and a good grasp of RESTful APIs, CI/CD, #J-18808-Ljbffr ...

lifecycle. Break complex tasks into clear specs, directing AI agents to handle heavy code generation while protecting system architecture. Write clean, maintainable code using C#, TypeScript, and modern cloud platforms. Shape Product and Technical Strategy: Work with bank stakeholders to understand challenges, refine products, and turn business needs into technical … expertise in AI-assisted software engineering, treating AI as a direct force multiplier. Strong background in modern cloud architectures, serverless, and microservices. Proficiency in C# and modern web stacks (TypeScript/Node.js). Experience building relationships with product owners to translate vague business needs into real tech execution. Comfortable with ...

join our London team in a hybrid role with two days per week at our HQ. You’ll work on a dual-stack C#/.NET and TypeScript frontend, building scalable APIs and modern microfrontends for the estate industry. You’ll own features end-to-end, collaborate with product ...

C# Developer/Software Engineer (WPF) London to £125k Do you have strong C# and WPF UI development skills within Front Office trading environments? You could be progressing your career in a senior, hands-on C# Developer at the Investment Management arm of a global bank. As a C# Developer … your focus will be on developing sophisticated front office user interfaces using C# and WPF, supporting real-tim click apply for full job details ...

An exciting opportunity has come up to join a forward thinking, growing legal software consultancy as a technical consultant. The main purpose of this role is to deliver successful software implementations and integrations and communicate ...

Developers, Business Analysts, Testers and Product Owners to design, build and support high-quality, maintainable software. In particular: Designing and developing robust Modern .Net (C#) and Angular solutions that support critical business processes Building well-structured RESTful APIs and service-oriented components that integrate cleanly with other systems Working with … reliable, maintainable and easy to support. You will be able to demonstrate: Strong commercial experience with Angular Strong commercial experience with Modern .Net and C# Experience designing and developing service-oriented applications Practical understanding of RESTful API design, including clean resource modelling, error handling, versioning and security considerations Knowledge ...

customer. The position requires a strong mathematics or mathematical modelling background coupled with strong software engineering skills in Java (or possibly C++ or C#). You will need to be conversant with software engineering best practice, comfortable working with large and complex codebases, and designing, implementing, and debugging Java software. … equivalent), and a relevant MSc or PhD in combinatorics, optimisation, or similar subject. Demonstrably strong coding skills in Java, modern OO C++, or possibly C#, together with a good grasp of software engineering practice – version control, code reviews etc. Commercial coding experience would be valued but is not essential. ...

Equity Stat Arb Quantitative Researcher - London A leading, multi-manager hedge fund with +$5Bn AuM is looking to grow an established mid-frequency equity team based in London. The team is looking for an ...