1 to 25 of 85 C# Jobs in the City of London

engineering experience, ideally within real-time or trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis ...

modifications to open-source UI components Experience enabling data scientists and engineers with Python-based development workflows and tooling Technology Stack: Azure Cloud Services C# (.NET 10) Python React.js and modern JavaScript (ES6+) Snowflake (Data Warehouse) Apache Airflow Terraform dbt SQL Server ...

keep pace What we're looking for Strong experience leading technical delivery within a digital agency or consultancy environment A solid backend background in C#/ASP.NET Core , with full-stack awareness Experience across both frontend and backend challenges - reactive frameworks experience welcome Deep familiarity with Azure , including CI/ ...

Qualifications Proven experience as a technical lead on a complex, multi-service platform, with direct responsibility for technical delivery quality and team output. Extensive C# and ASP.NET Core experience, including RESTful APIs, dependency injection, domain modelling, integration patterns, and performance considerations. Experience with Entity Framework Core code-first migrations ...

automated testing and DevOps practices Comfortable working across teams to solve business problems with technology Experience in Agile delivery environments Desirable Experience Node.js or C# exposure Terraform/Infrastructure as Code Distributed systems or API gateway experience Monitoring/observability tooling Enterprise platform or shared services experience Financial markets/ ...

required, on implementation, quality and operability. Our Contract Assignments are Inside IR 35, hybrid working. Initially 6-9 months About the role: Experience with C#/.NET Additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Experience with Kubernetes ...

Required Skills & Experience Strong experience in automation testing using Selenium/Playwright/Cypress Proficiency in programming languages such as Java, Python, or C# Experience with API testing (Postman, REST Assured, or similar) Knowledge of testing frameworks (TestNG, JUnit, Pytest, etc.) Familiarity with CI/CD tools (Jenkins, Azure DevOps ...

ability to review architecture, challenge solutions, and implement engineering standards Excellent communication skills for both technical and non-technical stakeholders Familiarity with .NET/C#, Azure, DevOps/CI/CD, microservices, and modern scalable architecture principles is desirable The opportunity: Shape a new leadership role in a regulated, innovative ...

maintain production code Research and integrate new technologies Foster a culture of engineering excellence and continuous improvement Key Requirements 5+ years’ experience working with C#/.NET Experience developing front and middle office systems Strong SQL skills Experience with cloud-native solutions (Azure or AWS) Knowledge of event-driven, microservices ...

About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise in React JS on the front-end and C# .NET Core on the backend. The ideal candidate will have substantial hands-on experience developing scalable applications, strong exposure to cloud-native architectures, with experience … delivered micro front-end architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. ...

Strong expertise in SPFx development and modern front-end technologies (TypeScript, JavaScript, React, HTML5, CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity Services (BCS), External Content ...

delivery and mentoring junior team members What you'll need 3+ years in software development with strong SharePoint, SQL Server, and .NET experience Solid C# skills web API development, Entity Framework, MVC SharePoint across multiple versions: 2016, 2019, SE, and SharePoint Online Front-end confidence React, Angular, jQuery, Bootstrap Power ...

Senior C# .NET Front Office Developer | Pricing & Risk Analytics | £150k | Front Office Location: London (Central) Working Pattern: Hybrid (3 Days Office/2 Days Remote) Sector: Global Financial Services – High-Performance Analytics Salary: Up to £150,000 + Bonus + Benefits The Mission: Architecting High-Performance Risk Engines Our client … seeking a Senior C# .NET Software Engineer to join their Analytics Development team, a group at the intersection of high-scale technology and quantitative finance. This is an opportunity to lead the design of advanced pricing and risk platforms, including a high-performance distributed computing system used for real-time ...

standards What we're looking for Strong hands-on experience with SharePoint SE and SharePoint Online Proven SPFx development TypeScript, JavaScript, React Experience with C#/.NET, SQL Server, and RESTful API integrations Solid on-prem admin background patching, performance tuning, troubleshooting BCS and ECT experience a strong plus Microsoft ...

innovation Contribute to the continuous improvement of analytical methodologies and tools Skills & Experience Required Strong programming skills in several of the following: Python, C#, C++, Java Advanced knowledge of mathematical modelling, statistics, and probability Proven analytical and problem-solving ability Experience working with large-scale data and data science methodologies ...

your role defining strategy and influencing You’re comfortable working in at least one object oriented programming language (JavaScript/TypeScript, Python, Java, C#, etc) You have hands-on experience with GenAI, (e.g. Playwright with MCP). Experience with AI-assisted coding tools (e.g., GitHub Copilot, Claude) is required, knowledge ...

based environments. Key areas include: • SharePoint 2016/2019/SE & SharePoint Online development and administration • ASP.NET MVC/ASP.NET Core MVC application development • C# and Web API development • SQL Server, Entity Framework & SSRS • Power Platform (PowerApps/Power Automate) • Front-end technologies including React, Angular, jQuery & Bootstrap ...

colleagues and stakeholders. Stay up-to-date with emerging trends and advancements in AI and machine learning. Profile Must haves: Software Engineering experience - ideally C# or Python Azure (Azure Fabric, Data Factory, ML Studio, Foundry, Synapse, Cosmos etc) Then a mixture of the following on top: GenAI LLM APIs Experience ...

.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … expand their award winning .NET software development team. We are seeking .NET Developer candidates with experience of either web application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js ...

Role: C#/.NET Full Stack Engineer Base Locations: London, Manchester, Newcastle or Glasgow Working Pattern: Hybrid, with flexibility for client assignments Overview We are seeking experienced Full Stack Engineers to support the delivery of modern digital solutions across a range of transformation programmes. This role sits within a multi … disciplinary engineering and consulting environment, working closely with architects, designers, product teams and client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures ...

algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Exposure to a statically typed language (C++, Java, C#, Rust, etc.) Understanding of performance trade-offs in rendering and interaction Working knowledge of basic linear algebra Why this role stands out You’ll be working ...

Collaborate with architects and engineering teams to set integration standards, patterns, and best practices across the organisation. Skills Needed: Strong software engineering experience with C#/.NET (and supporting scripting where required). Deep hands‐on experience with Azure integration and messaging services, particularly Azure Service Bus. Solid experience operating ...

.NET Developer, .NET 10.0, C# 14 - Consultancy - London Or Surrey (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is an award winning Microsoft consultancy. They specialise … full project life cycle. .NET Developer applicants should have a skill set that encompasses some or all of the following: .NET, .NET Core, C# and Azure SQL. Knowledge of software development methodologies is of interest (Agile, Scrum). My client will provide training in: .NET 10.0, ASP.NET Core, C# ...

Graduate .NET Developer - Investment Bank - London (Tech stack: Graduate .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, Graduate .NET Developer) Our client is the world's most respected banking institution. Their story dates … over 10,000 offices in 100 countries. Working in tandem with Microsoft they are about to embark upon one of the largest .NET/C# software development projects to take place within the financial services arena for the past 20 years. Graduate .NET Developer will be working on the design ...

.NET Developer, CMS, Sitecore, Optimizely, Umbraco - London (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the 1990s our client is one the fast growing technologies brands across Europe. They have built an unrivalled reputation … complex enterprise .NET projects that have attracted much attention in the trade place. .NET Developer applicants should be experienced in: .NET, .NET Core, C# and Azure SQL. .NET Developer candidates should have some knowledge of a Content Management System (CMS) such as Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity ...