1 to 25 of 106 C# Jobs in the City of London

culture of continuous learning, innovation, and engineering excellence Required Experience & Skills Strong experience building full-stack web applications using TypeScript/React and C#/.NET (or similar technologies) Deep understanding of software engineering principles, including modular architecture and design patterns Proven experience designing and developing RESTful APIs and microservices ...

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 ...

modern data engineering techniques (e.g. distributed systems, data streaming, event-based architectures etc) Software development experience with one or more languages (e.g. Python, Java, C# ) Solid software engineering and DevOps skills as well as the complete SDLC applied to data, e.g. design patterns, automation, testing, contract definition, clean code ...

multi-currency processing. What you’ll be doing: Architecting and building cloud-first solutions in Azure Developing across the stack: ASP.NET Core/C#, Angular (TypeScript), SQL Server Owning quality through TDD/BDD, CI/CD (Azure DevOps), and production-grade observability Leading technical design, mentoring engineers, and influencing ...

with the following core technologies; however, it is not expected that they will have prior experience of them all: Programming: Python, JavaScript, TypeScript, SQL, C#, C++ Frameworks & Tools: FastAPI, Jupyter, JupyterHub, Voila, Power BI, GitHub, Vue, Nuxt AEC Platforms & Standards: Revit, Revit API, pyRevit, Rhino, Grasshopper ...

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 ...

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 ...

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 ...

architecture (Oracle or SQL Server) and Linux environments. Experience with integrations (SFTP, APIs, web services, message-based systems) and Git . Desirable: .NET/C#, Java, Centiro or other CMS, ServiceNow/ITSM tools , Agile/DevOps experience, ITIL/change management awareness. Additional Information Flexible hybrid working – candidates from ...

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 ...

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 ...

Agile/Scrum environments Strong communication and stakeholder skills Experience with low-level programming languages (e.g. C/C++) Python (pytest/unittest) or C# experience Cloud platform experience Strong interest in applying AI to QA and automation Prompt Engineering experience Why Join? Work on cutting-edge cybersecurity technology trusted ...

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 ...

with unstructured data handling in enterprise content management scenarios. Deep knowledge of SharePoint Online architecture, modern vs. classic experience, SPFx, PnP PowerShell. Strong knowledge C#, ASP.NET Core, .net 8/10, and PowerAutomate Proficiency in migration tools (ShareGate, SPMT, AvePoint, or similar). Strong understanding of Microsoft 365 security/ ...

will be an element of mentoring juniors, helping to review code, working with Business Analysts and Product Managers to understand business requirements Must haves: C# Azure SQL Angular Mentoring experience UK work experience Nice to haves: Certifications K8s Docker Azure Service Bus, Logic Apps, Functions Apps Job Offer Car allowance ...

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 Engineer ...

design and development practices Engage senior stakeholders across technology and business Translate complex technical decisions into clear, commercial outcomes Technology Environment Backend: TypeScript/C# Frontend: JavaScript/React Cloud: AWS (containers, serverless, broader ecosystem) What They're Looking For Strong platform/solution architecture experience in modern cloud environments ...

cross-functional teams Optimise performance and ensure high system reliability Contribute to reusable components and best practices 🎯 Key Skills & Experience Strong experience with .NET & C# (ideally .NET 6–8+) API development and microservices architecture knowledge Experience with SQL Server and/or NoSQL (e.g., Cosmos DB) Exposure to cloud platforms ...

widely adopted developer tooling What they’re looking for Strong JavaScript and TypeScript fundamentals (framework-agnostic mindset) Experience with a statically typed language (C++, C#, Java, Python, etc.) Deep understanding of algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Familiarity with React, Angular ...

test automation for Salesforce and integrated systems, embedded into CI/CD pipelines. Familiarity with automation frameworks and scripting/coding languages (e.g. Apex, C# or equivalent) and with cloud based infrastructure and managed services. Strong understanding of modern quality practices such as shift left testing, TDD/BDD, risk ...

required) Customer Onboarding (x2) – London Risk Experience – London Ops Enablement (x2) – Bristol-based What I am Looking For Strong commercial experience with .NET/C# Fintech or Payments background required. Solid understanding of REST APIs, microservices, and cloud-based architectures Experience working with frontend programming languages (React or Angular) Ability ...

Java library and framework: Lombok, Spring Boot Stub testing experience: yaml, wiremock or Mockito, SOAP API testing Programming languages experience in OOP: Java or C# tools used: Cucumber Gherkin, Postman (Bruno), Junit: CI/CD integration with Gitlab/Jenkins Git version control: Gitlab/GitHub experience in JIRA ...