1 to 25 of 124 C# Jobs in the City of London

product innovation and new feature development You Will Need 5+ years software engineering experience within modern development environments Strong expertise in .NET Core (C#), Microsoft Azure services, Frontend (ideally Angular) and SQL Server. Experience integrating payment platforms or financial APIs– Experience working with event-driven systems, messaging, and secure authentication ...

global financial markets. The Technical Stack You will be working within a modern, engineering-first culture. The core stack includes: The Engine: Expert-level C# and .NET Core mastery. Architecture: Deep understanding of SOA (Service Oriented Architecture) and complex Object-Oriented design patterns. System Dynamics: Specialized knowledge of concurrency, asynchrony ...

testing and iterate designs based on real feedback from legal professionals. Ensure consistency across platforms and champion accessibility (WCAG). Integrate with backend services (C#, Azure) and contribute to API-driven developmentideal for someone keen to expand their backend exposure. Maintain design systems, component libraries, and documentation to support scale ...

debugging and problem-solving skills Experience collaborating with technical stakeholders such as researchers or data scientists Desirable Experience Experience with languages such as C++, C#, Rust, or JavaScript Experience building microservices or distributed systems Linux experience including debugging services and working with system logs Exposure to trading systems, market data ...

ownership of projects and mentoring more junior team members You have strong TypeScript skills, combined with any backend programming language (e.g. Python, Java, C++, C#) You're happy to work with the following tech stack (you don't need experience with all): Elixir, Ember, Elm, Phoenix, LiveView, Python, PostgreSQL ...

integration Experience working with JavaScript or TypeScript and modern web development practices Understanding of secure development and enterprise collaboration environments Desirable Experience Experience with C# and .NET-based services Experience integrating Microsoft Azure services Familiarity with modern front-end frameworks such as Angular or React Experience working in regulated ...

frontends and .NET 8 backends (Playwright, Cypress or similar). Lead technical quality assurance across complex regulatory systems (AML, KYC, compliance). Review code (C#, TypeScript) to ensure best practice, security and performance. Define and deliver test strategies for enterprise clients. Perform API and integration testing across RESTful services ...

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 ...

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 ...

Develop and maintain .NET code for back-end services, APIs, and integrations with other systems. Utilise relevant .NET frameworks and technologies (e.g., ASP.NET Core, C#, Entity Framework). Write unit and integration tests to ensure code quality and reliability. Reverse Engineering: Analyse and understand existing codebases (potentially Python) to identify ...

days) Annual bonus of between 10% and 25%, depending on personal and company performance. Desired Skills and Experience Software, Developer, Asset Management, AML, C#, .NET, .NET Core, angular, UI, Front End, Azure, SQL Server, Financial Services, Lead Developer, Senior Developer, AI, Artificial Intelligence, Hays Specialist Recruitment Limited acts ...

with production engineering rigor: microservices, containers (Docker/K8s), serverless, CI/CD Solid programming skills (one or more): Python, TypeScript/JavaScript, Java, C# Experience with APIs and integration patterns: REST/gRPC, event-driven systems, queues, workflow engines Security & Governance (Must Have) Understanding of GenAI-specific threats: prompt ...

team environment (GitHub Actions or Azure DevOps). • Competence in at least one backend language (Python strongly preferred, given the ML stack; Go, C#, or TypeScript also valuable). • Experience with containers (Docker, Kubernetes or equivalent) and modern deployment patterns (blue-green, canary, feature flags). • Production experience with monitoring ...

C# Developer – 6-month contract – London – SC Cleared – Inside IR35 My Financial Services customer is looking for a C# Developer, that will play a key role in designing and building components of a synchronisation platform. You will work across backend and frontend technologies to enhance the Lab environment, implement feedback … joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure. Skills & Experience required from the C# Developer Active SC Clearance Strong hands-on development experience with C# and .NET Solid SQL and database development expertise Experience building modern web applications using Angular, HTML ...

quality assurance standards and oversee E2E testing using Playwright. REQUIRED EXPERIENCE: Significant experience leading technical delivery within a digital agency environment. Strong background in C# (ASP.NET Core) and a variety of web technologies. Proven ability to manage both frontend and backend development challenges. Experience with CI/CD workflows ...

Security controls & principles CI/CD pipeline management, SRE skills (desriable) Familiarity with Agile development practices, working with engineering teams Coding/scripting e.g. C#, Java, Azure CLI, Bash, or PowerShell ...

guides, and best practices 8+ years of experience of coding skills with primarily JavaScript and Typescript. If you've got Python, HTML/CSS, C# and/or Java... well that's even better! Experience in web applications deployment (AWS, Azure, IIS, etc.) in a Windows or Cloud environment. Data ...

driven culture ✅ What You’ll Bring 🎓 Degree in Computer Science, Mathematics, Physics, Engineering , or another STEM discipline 💻 Strong programming skills in Python, C++, Java, C#, or KDB+/Q 🔍 Analytical mindset with a passion for tackling complex, data-driven challenges ⚡ Curiosity, drive, and the ability to thrive in fast-paced ...

Umbraco websites to version 17.2 - this is essential Strong commercial background with Umbraco 10+ and modern .NET (6/7/8) Proficiency in C#, MVC, Razor, and dependency injection patterns Hands-on experience migrating content models, document types, data types, and packages - including replacing deprecated or incompatible components Solid ...

States) on occasions. We need someone who has come from a Data-Engineering First background with a hardened skillset in Microsoft Stack Technologies (C# .NET Core) who has then transitioned into Product Ownership. We need someone highly analytical who can understand large Data Sets, Data Bricks and is able ...

need someone who has come from a Data Bricks, Microsoft Fabric, Data-Engineering First background with a hardened skillset in Microsoft Stack Technologies (C# .NET Core, Fabric) who has then transitioned into Product Ownership. We need someone highly analytical who can understand large Data Sets, Data Bricks and is able ...

8+ years of software development experience, including 3+ years leading or managing engineering teams. Strong background in object-oriented programming using languages such as C#, Java, Python, or similar. Experience building Microsoft-based applications across front-end, back-end, and services layers. Hands-on experience with Microsoft Dynamics 365, including ...

code comfortably in one or more interpreted languages (eg. Python, Bash, PowerShell, Perl, Ruby) and one or more compiled languages (eg. C, C++, C#, Golang, Rust, Java, Objective-C) One or more of the following certifications (OSCP, OSCE, GPEN, GXPN, CRTO, CREST Certified Simulated Attack Manager) Where ...

.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 ...