12 of 12 Contract C# Jobs in Central London

Endur Developer

Hiring Organisation
Staffworx Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
contribute to DevOps practices. Must-Have Skills Strong experience with OpenLink Endur (v16+) including: .NET SDK/Toolkit OpenComponents UDSR Development OpServices Solid .NET (C#) development experience in a trading environment. Experience in Power, Gas, or Metals markets. Strong understanding of trade lifecycle and front-to-back workflows. Desirable Skills ...

Senior C++ Developer / Software Engineer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £750/day
Added bonus if you have: · Oracle Experience · Experience of event-driven distributed messaging (e.g. Kafka) · Experience of financial markets and the trade lifecycle beneficial · C# and any GUI development experience Please send your CV now for more details, this is an URGENT role ...

Application Engineer

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - 500 per day + Inside IR35
Maintain, enhance, and support applications, integrations, and services Identify and implement opportunities for automation and system rationalisation Skills & Experience Strong experience with .NET/C#, SQL Server, React, and Python Hands-on experience with security patterns including OAuth, SAML, and RBAC Solid understanding of Azure cloud services Experience with ...

Dynamics 365 CE Developer

Hiring Organisation
Morson Edge
Location
Central London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 550 per day
Dynamics 365 CRM configuration, customisation, and integration capabilities Expertise in integration technologies like Logic Apps, HTTP, JSON Proficiency in programming languages such as .NET, C#, JavaScript Development and Project Leadership Experienced in developing Dynamics plugins and enhancing forms with JavaScript and HTML Demonstrated leadership in CRM implementation projects from start ...

AI/ML Principal Engineer

Hiring Organisation
Velocity Talent Ltd
Location
Central London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 per day £400 a day inside IR35
Reasoning, text-embedding-ada-002 Libraries & Tools numpy, pandas, scipy, scikit-learn, tensorflow, keras, nltk, matplotlib, seaborn, plotly Programming Languages Python, R, C++, C#, Java, Node.js, HTML, SQL Agentic AI OpenAI Agents SDK, Model Context Protocol (MCP), LangChain, LangGraph, Bedrock Agents, CrewAI, Helicone Rate:400GBP/day Inside IR35 Work ...

Azure Cosmos DB Admin and Developer

Hiring Organisation
Vallum Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 per hour
implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. The developer will build reusable libraries and frameworks using C#/.NET or Node.js and establish robust CI/CD pipelines through Azure DevOps to streamline delivery and reduce operational overhead. A key responsibility includes … applications using Azure Cosmos DB (SQL API, Mongo API) Design and implement partitioning strategies, indexing, and consistency models Build reusable libraries and frameworks in C#/.NET or Node.js Develop and maintain CI/CD pipelines using Azure DevOps Monitor and optimise Cosmos DB performance using Azure Monitor and Application ...

Senior Back End Engineer (.NET/Azure)

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
team where architectural thinking, reliability, and craftsmanship are valued just as much as delivery speed. Responsibilities Design, build, and maintain backend services using C# (.NET 8+) and Azure Services. Develop and secure Modern Distributed Systems using Azure Container Apps, integrating with internal systems. Work with Service Bus, Azure … Client’s culture of accountability and shared learning. Experience, skill, and capability The ideal candidate for this role is a .NET developer with strong C# skills and hands-on Azure experience, allied to a good functional and commercial understanding of the Banking industry. Core skills include: 5–8 years’ experience ...

Azure Cosmos DB Admin and Developer

Hiring Organisation
Gazelle Global Consulting Ltd
Location
Central London, London, United Kingdom
Employment Type
Contract
Cosmos DB across mission-critical workloads. You will shape partitioning models, indexing strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. … This position offers genuine impact in a regulated, high-velocity technology environment. Key Skills: Azure Cosmos DB (SQL/Mongo API), NoSQL modelling C#/.NET or Node.js Azure Functions, App Services, AKS, Logic Apps CI/CD with Azure DevOps Performance optimisation (Azure Monitor, App Insights) Distributed systems & concurrency ...

QA Engineer

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
finish Coordinate and support UAT with business users. Develop and maintain automated test scripts using xUnit, Nunit & RestSharp for Backend and MS Playwright with C# or Typescript for Frontend Create and execute test plans and test cases for software applications. Collaborate with the development team to identify test scenarios … related field. At least 3 years of experience in automation testing with xUnit, Nunit, MS Playwright, RestSharp Experience in programming languages such as C# in Dotnet Soft skills like good communication skills Strong understanding of Agile methodologies and experience working in an Agile development environment. Ability to work ...

AI Evangelist - Inside IR35 - Hybrid

Hiring Organisation
Tenth Revolution Group
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £1000/day
AI Evangelist - Inside IR35 - Hybrid Role Overview The Senior AI Evangelist plays a pivotal hands-on role in shaping and driving the responsible adoption of Artificial Intelligence across the organization. This position bridges the gap ...

Automation Tester

Hiring Organisation
Teksystems
Location
Central London, London, United Kingdom
Employment Type
Contract
site in Liverpool St, London. This opportunity is classified as outside IR35. Responsibilities Develop, execute, and maintain complex test scripts. Utilise advanced proficiency in C#, Python, JavaScript/TypeScript, and SQL to enhance test automation efforts. Implement and refine test automation frameworks such as Playwright and Specflow. Apply deep understanding … data testing using SQL, Snowflake, or Databricks. Engage effectively with clients and manage stakeholder relationships. Essential Skills Strong Independent problem-solving. Advanced proficiency in C#, Python, JavaScript/TypeScript, and SQL. Extensive experience with test automation frameworks like Playwright and Specflow. Strong understanding of Agile and TDD methodologies. Robust data ...

Back End Integration Engineer

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - 500 per day + Inside IR35
support APIs, messaging components, orchestration workflows and data access layers. Develop high-quality, secure and maintainable code using approved tools and languages (such as C# and Python). Contribute to CI/CD pipelines, automated testing and peer code reviews. Collaborate with Product Owners, Analysts, Application Engineers, Data Engineers … orchestration. Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid and Azure Functions. Proficiency in back-end development (e.g. C#, Python) with a strong focus on secure coding practices. Hands-on experience with CI/CD pipelines, automated testing and modern software engineering practices. Strong ...