26 to 50 of 64 C# Jobs in the City of London

with application support and vendor management Strong experience in exchange certification, application Deployment and support Must have strong technical skills in scripting, Python, PowerShell, C#, SQL or other programming languages Experience in messaging systems, and experience debugging network protocols such as TCP, multicast, would be highly regarded. Experience leveraging ...

with market data providers, liquidity aggregation platforms, third-party networks, and EMS/OMS vendors is essential. Strong technical skills in scripting, Python, PowerShell, C#, SQL, and experience with FIX engineering, messaging systems, and debugging network protocols are required. Excellent analytical and problem-solving abilities, along with outstanding communication skills ...

Cloud Data Platforms: Hands-on experience with Snowflake (highly desirable) or similar cloud-based data warehouses (e.g., BigQuery, Redshift). Additional Programming: Knowledge of C# and experience working within a .NET environment. AI Tooling: Experiencing utilising AI-assisted development tools, such as Github Copilot, or integrating AI capabilities into data ...

including RAG pipelines, agentic/tool-use frameworks, and multi-step reasoning workflows. Strong proficiency in Python for AI service development; working knowledge of C# or equivalent compiled language for enterprise microservice integration. Hands-on experience with vector databases and semantic search pipeline design. Experience with Model Context Protocol ...

with experts across analytics, fraud and financial crime. The role involves using Collibra, Excel and Power BI, with SQL/SAS or Python/C# for data tasks, and delivering impact through clear stakeholder communication and strong #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 ...

work on the Price Discovery platform, developing and maintaining broking screens across Fixed Income, Interest Rate Derivatives, FX Derivatives, Energy, and Commodities, using C++, C#, and Python. As a junior member, you will be guided by experienced colleagues to learn financial concepts while contributing to production-ready code and reusable ...

applied AI. You will collaborate with business units to understand objectives, build skills, and deliver tools that improve how teams work. Expect to use C#, Python, R or Java, analyse data with SQL and pilot AI-enabled solutions while weighing data privacy, cost and maintenance. Global project work and ongoing ...

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 ...

developer to join its London-based technology team. You will collaborate with business units to understand objectives, build creative solutions, and automate processes using C#, Python, R, or Java. The role involves data analysis with SQL and exploring AI-enabled applications to improve how teams operate. Applicants should have ...

junior software engineer to join the Global Analytics team. You will work on an in-house Excel-like application, backed by C++ and C# libraries, developing and maintaining broking screens across multiple asset classes. As a learner within a collaborative, hybrid London team, you will fix production issues, own small ...

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 ...

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 ...

development. What you'll be doing Designing and building enterprise solutions using Microsoft Azure and Power Platform Developing applications and services using .NET/C#, APIs and Azure services Creating integrations using Azure Functions, Logic Apps, Service Bus and API Management Building Power Apps, Power Automate solutions and Dataverse applications … looking for Proven experience as a Senior Engineer delivering complex production environments Strong hands-on expertise with Microsoft Azure Solid .NET/C# development experience Experience building solutions using Power Apps, Power Automate and Dataverse Knowledge of API-led integrations, microservices and event-driven architectures Experience integrating Azure, Microsoft ...

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/ ...

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 ...

Software Engineer with a strong background in building scalable, high-quality, and high-performance solutions on the Microsoft technology stack (.NET/Blazor/C#). As a Senior Software Engineer, you will be responsible for building and maintaining internal and external-facing web applications in collaboration with international … lead for the Microsoft technology stack. Key Responsibilities: Design, develop, test, support and deploy custom web and mobile applications based on .NET (Blazor, C#), C++. Gather customer software requirements and develop related software applications and programs. Collaborate with architects, engineers, and other team members to design scalable and efficient solutions. ...

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 ...

short and long-term solutions that enhance and expand these shared services.Principal ResponsibilitiesDelivery:Delivering new core services and API capabilities, primarily in Java and C#, for consumption by multiple Investments applications and teams.Maintaining and enhancing existing services, including those written in Python and Node.js, and driving their modernization where appropriate.Improving … technology services.Buy or sell side investment management domain knowledge (Equity, Fixed Income or Multi-Asset).Required Skills and Experience:Technical SkillsJava and/or C# - Proven track record of designing, building and operating production-grade services in Java and/or C#, our primary languages for all new services. Willingness ...

quality engineering teams. Strong hands-on experience designing automated tests for backend systems, REST APIs or distributed platforms. Strong hands-on programming experience in C# is essential; JavaScript/TypeScript experience is secondary. Ability to define risk-based test strategies and translate functional and non-functional requirements into effective test … delivery and close collaboration with developers and product teams. Clear communication, stakeholder management and analytical problem-solving skills. Technical Environment Core testing technologies include C# for test automation, Playwright for web UI and end-to-end testing, bUnit for Blazor component testing, and JMeter for performance and load testing. JavaScript ...

experienced Senior .NET Developer with 7+ years of experience to build, enhance, and support enterprise applications. This role requires strong hands-on development in C#, deep SQL expertise focused on troubleshooting and data analysis, and the ability to deliver business-critical insights through Power BI. The developer will also support … SaaS applications and contribute to the design of AI-driven solutions. Key Responsibilities Application Development Design, develop, and maintain applications using .NET (C#, ASP.NET Core) Build and support APIs and integrations across internal and third-party systems Ensure code quality, scalability, and performance across the full SDLC SQL/Data ...

strive to innovate. We are making significant investments in our business and we will invest in you. Our Tech Stack/Tools C# .Net Event Driven Architecture Highly distributed systems Responsibilities Defining and executing the quality and testing strategy for your team, coaching other team members to ensure software quality … Inquisitive nature, with excellent analytical and problem solving skills Understanding of testing concepts, methodologies and processes Knowledge and experience working with Docker Experience with C#/.NET environment Familiarity with .NET Aspire Practical knowledge of Azure DevOps (ADO) for managing CI/CD workflows and deployment pipelines Exposure ...

About OneView Commerce Retailers with thousands of shops have had two options, and neither is good. Web-native platforms move fast but were never built for a shop floor. Legacy store systems were built for ...

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 ...