1 to 25 of 121 C# Jobs in the City of London

Senior C# Developer/Backend Software Engineer (C# .Net) London onsite to £150k Are you an experienced backend focussed C# Developer? You could be progressing your career in a senior, hands-on role at a global Sports Trading business, earning substantial bonuses. As a Senior C# Developer within the trading … React.js. Location: You'll be based in plush City office on a fulltime basis, Monday to Friday. About you: You have expertise with C# .Net, ASP.Net development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge ...

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 ...

services (buy‐side preferred, sell‐side also welcome). Solid background in treasury, collateral, middle‐office, or financial operations technology. Strong programming skills in C# + Python Front‐end experience with Vue.js , React , or Angular . Experience with databases such as SQL Server, Databricks, or Azure SQL. Strong understanding ...

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 ...

/Online. Proven SPFx development skills. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint onprem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. ...

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 ...

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 ...

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 ...

similar), containerisation (Docker/Kubernetes), and CI/CD tooling (TeamCity or equivalent). You should have solid scripting or development experience (Python, PowerShell, C# or Java), alongside exposure to monitoring and observability tools (e.g. ELK, Prometheus, Grafana). Experience across cloud environments (Azure/AWS), as well as Windows ...

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 ...

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 ...

Looking For Extensive experience as a Senior Developer or Technical Lead in Microsoft Dynamics 365 CE/Power Platform Strong hands-on expertise in: C#/.NET JavaScript & modern frameworks PCF (PowerApps Component Framework) Proven experience building custom plug-ins and advanced customisations Deep understanding of Dataverse and Power Platform ...

JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# and .NET Framework for backend and integration development. - Hands-on experience administering SharePoint on-prem environments, including patching, upgrades, performance tuning, and troubleshooting. Sharepoint Developer ...

leadership and clear communication across teams. Required Skills & Experience: Strong hands-on engineering experience in Python. Experience working within AWS environments. Solid .NET/C# development experience. Proven track record of delivering projects end-to-end within a Front Office or trading-aligned environment. Strong stakeholder engagement and communication skills. ...

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 ...

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 ...

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 ...

ongoing improvements across the team What we’re looking for • Expert in modern front-end tech - Vue (mandatory), React/Angular (nice to have) • C#/.Net - this will be a small part of the role but necessary • Experience working with component based development and design systems • Strong understanding ...