Contract .NET Jobs in London

1 to 25 of 32 Contract .NET Jobs in London

Fabric & Azure Data Factory AI Engineer/Developer

London, United Kingdom
Eden Smith Limited
and data science fundamentals Collaborate closely with product managers, data engineers, solution architects, and other technical teams to deliver production-ready solutions. Core Technical Skills: Programming & Front End C#, .NET Core, Node.js, Python, JavaScript, React, Angular AI & Data Services Azure OpenAI, Copilot, Cognitive Services, Azure ML, Databricks, Microsoft Fabric, Data Factory Cloud & Integration Azure App Service, Azure Functions, AKS More ❯
Employment Type: Contract
Rate: GBP 500 Annual
Posted:

Power Platform Developer

London, United Kingdom
Computappoint
databases and writing SQL scripts Strong understanding of Azure services such as Azure functions, Logic Apps, Azure Service Bus, Azure DevOps, and other Azure services Strong experience with C#, .NET Strong experience in Unit Testing Experience with CI/CD for Power Platform and Azure Services Prior experience of LotusScript Prior experience of HCL Notes (Lotus Notes) Formula Language More ❯
Employment Type: Contract
Rate: GBP 415 Daily
Posted:

AI Developer - Azure, ML, AI Foundry

London, South East, England, United Kingdom
Hays Specialist Recruitment Limited
AI services, Azure Machine Learning (ML), and AI Foundry. Hands-on experience with Azure Cognitive Services, Azure OpenAI, and Azure Data Factory. Solid programming skills (Python/C#,/.NET) Experience with Azure DevOps, CI/CD pipelines, and GitHub Actions. Knowledge of containerization (tools ie Docker) and orchestration (ie Kubernetes on Azure). Good awareness of Data & AI More ❯
Employment Type: Contractor
Rate: £500 - £700 per day
Posted:

QA Engineer

Central London, London, England, United Kingdom
Hybrid/Remote Options
E-Solutions IT Services UK Ltd
Science, Information Technology or 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 in a fast-paced environment and adapt to More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Automation Application RPA Developer

East London, London, England, United Kingdom
Computappoint
the SME and Programme Manager to ensure that all project documents are maintained and that knowledge is transferred to clients throughout the engagement Essential Requirements Proven experience in C# .NET & SQL development Good experience of Windows application development Extensive experience with UiPath RPA technologies (Must have used this to create at least 20 processes of varying degrees of complexity More ❯
Employment Type: Contractor
Rate: £415 per day
Posted:

AI Developer/Engineer

London, United Kingdom
Damia Group Ltd
Develop APIs, microservices, and integrations to embed GenAI models into enterprise workflows. Work with frontend and backend teams to deliver AI-driven features in production. Required Skills Programming: Python, .NET/C# (Key to have a background in C#) Knowledge of AI principles and AI ethics Knowledge of data safety in LLM usage Experience with: AWS: boto3, Bedrock, SageMaker More ❯
Employment Type: Contract
Rate: £500 - £650 per day
Posted:

Cloud Security Engineer

City of London, London, United Kingdom
ARM
Language. Cloud Security Policy Engineering and Testing - create cloud security policy, engineer it, test it and deploy it. Experience Workload Coding Languages & Frameworks - JAVA REST services with Spring, Python, .NET, etc. Threat Modelling Skills with tools such as IriusRisk or similar; experienced at identifying security flaws in cloud solutions via architectural assessment and threat modelling. Experience in Cloud Security More ❯
Employment Type: Contract
Rate: £540 - £585/day Inside IR35
Posted:

C# / DataStage ETL Developer - Hybrid - Banking - £960 p/d

London, United Kingdom
Hybrid/Remote Options
GCS
Wharf office/3 days WFH Rate - £600 - £960 per day (inside IR35) Tech Stack - MUST HAVE C# Datastage ETL Databricks SQL Finance/Banking experience Skills required C# .Net Framework and Object Orientated programming concepts. Oracle and SQL server (PL/SQL & TSQL). .NET Core C# and .NET (Windows & Web) development. Web API development DataStage … ETL Databricks Key Responsibilities Develop and maintain applications using C#, .NET Framework, and .NET Core for both Windows and Web platforms. Design and implement Web APIs for secure and efficient data exchange. Work extensively with Oracle and Microsoft SQL Server databases, including PL/SQL and T-SQL. Build and optimise integration solutions for finance and regulatory reporting More ❯
Employment Type: Contract
Rate: £600 - £960/day Inside IR35
Posted:

Junior Technical Implementation Consultant

Trafalgar Square, Greater London, United Kingdom
Vivo Talent
resolving complex issues What You’ll Bring A degree in IT, Computer Science, or 2+ years of relevant experience Solid knowledge of Microsoft technologies (Windows Server, SQL Server, IIS, .NET) Proficiency in T-SQL and experience working with web applications or APIs Strong analytical and troubleshooting skills with a proactive, ownership-driven attitude Excellent communication and teamwork abilities Nice More ❯
Employment Type: Contract
Rate: £300 - £375/day
Posted:

Senior Back End Engineer (.NET/Azure)

Central London, London, England, United Kingdom
Hybrid/Remote Options
E-Solutions IT Services UK Ltd
Position: Senior Back End Engineer (.NET/Azure) Location: Central London Hybrid work (3 days per week onsite) Need Immediate joiners only Description Client is seeking a Senior Back End Engineer to help deliver our Private Client Lending Origination Platform (IMPACT), a modern, workflow-driven platform supporting the full private client mortgage journey. We’re looking for an experienced … engineer who combines deep .NET and Azure expertise with a collaborative, pragmatic mindset. You’ll design and implement the backend services, APIs, and integrations that power our lending ecosystem, while working closely with front-end, product, and infrastructure teams. This is a role for someone who enjoys solving complex technical problems within a supportive engineering culture — bringing experience others … ll be part of a 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 SQL, API Management, and Key Vault More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

.NET Developer

London, South East, England, United Kingdom
Rise Technical Recruitment Limited
.NET Backend Developer London3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap.They already work … and AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes.The ideal candidate will have strong commercial experience in backend focused .NET development with solid skills in C#, ASP.NET, SQL Server, and AWS cloud environments. Experience working with RESTful APIs, HTML, CSS, JavaScript for integration, and a desire to keep up … AWS deployments and cloud environment configuration* Analyse issues in existing systems and provide robust technical solutions* Contribute to continuous improvement of tools, processes, and codebase standards The Person: * Experienced .NET Backend Developer with strong C#, ASP.NET, and SQL Server skills* Commercial experience with backend focused development* Proficient in designing and consuming RESTful APIs* Knowledge of HTML, CSS, and JavaScript More ❯
Employment Type: Contractor
Rate: £60,000 - £70,000 per annum
Posted:

Azure Cosmos DB Admin and Developer

City of London, London, United Kingdom
Hybrid/Remote Options
Vallum Associates Limited
and Mongo API), 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 monitoring and optimizing Cosmos DB performance … develop cloud-native 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 Insights Implement automated testing and unit … Familiarity with distributed systems and NoSQL data modelling Experience with Git, version control, and continuous integration tools Desirable skills/knowledge/experience Advanced proficiency in C#, ASP.NET, and .NET Core with strong object-oriented design principles More ❯
Employment Type: Contract
Rate: £500 per hour
Posted:

Front End Engineer (React/UI)

Central London, London, England, United Kingdom
Hybrid/Remote Options
E-Solutions IT Services UK Ltd
refine modular React applications using TypeScript, Tailwind CSS, and modern front-end architecture patterns. Translate UX designs and prototypes into responsive, accessible, and production-ready interfaces. Integrate securely with .NET/Azure backend APIs and workflows. Optimise for performance, accessibility, and user experience across devices and browsers. Contribute to and uphold Client’s design system and front-end standards. … reusable component frameworks. Collaborate across disciplines — particularly with backend and QA engineers. Participate in the technology community to learn, grow, and share expertise. Other beneficial attributes include: Exposure to .NET, Azure, or broader full-stack development environments. Familiarity with React Query, Next.js, or form-heavy workflows. Experience in financial services, lending, or other regulated environments. Understanding of modern DevOps More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Endur Developer

City of London, London, United Kingdom
Hybrid/Remote Options
Staffworx Limited
migrations related to Endur. Ensure performance, scalability, and maintainability of codebases. Support release cycles and 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 More ❯
Employment Type: Contract, Work From Home
Posted:

NET Developer

London, United Kingdom
Rise Technical Recruitment
.NET Backend Developer London 3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap. They … AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes. The ideal candidate will have strong commercial experience in backend focused .NET development with solid skills in C#, ASP.NET, SQL Server, and AWS cloud environments. Experience working with RESTful APIs, HTML, CSS, JavaScript for integration, and a desire to keep up … AWS deployments and cloud environment configuration * Analyse issues in existing systems and provide robust technical solutions * Contribute to continuous improvement of tools, processes, and codebase standards The Person: * Experienced .NET Backend Developer with strong C#, ASP.NET, and SQL Server skills * Commercial experience with backend focused development * Proficient in designing and consuming RESTful APIs * Knowledge of HTML, CSS, and JavaScript More ❯
Employment Type: Contract
Rate: £60000 - £70000/annum
Posted:

Azure Cosmos DB Admin and Developer

Central London, London, United Kingdom
Gazelle Global Consulting Ltd
and operational excellence of 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 patterns Please apply with an up-to-date CV that clearly matches the requirement. More ❯
Employment Type: Contract
Posted:

Senior .NET Developer (h/f)

London, United Kingdom
emagine
.NET Developer London- Hybrid £600- £650pd emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and … aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine. We are seeking a Senior .NET Developer with a strong emphasis on Back End development and full-stack experience, particularly in C#. The ideal candidate will have solid design principles and a positive attitude, with … for Front End applications. Participate in the implementation of an in-house development framework. Collaborate closely with Business Analysts to refine end-user requirements. Key Requirements Expertise in C# .NET development. Experience with Angular or alternative Front End technologies. Solid understanding of design principles. Experience with document-based databases. Familiarity with event-based messaging frameworks. Prior banking experience is More ❯
Employment Type: Contract
Rate: GBP 600 - 650 Daily
Posted:

Fullstack Developer .NET/JS

London, South East, England, United Kingdom
Lorien
successful and well-respected suite of real-time secondary market applications used by credit sales, trading and management globally. We are looking for a candidate with expert knowledge of .NET and JS Typescript/React, database\SQL experience, and with a track record of delivery on large scale real-time distributed systems. Knowledge of the Fixed Income business would … agile based software development as part of a global development team Required Skills · At least 8 years software development experience in an investment bank environment or equivalent · Expert in .NET development, including .NET core and server-side development · At least 2 years' recent experience using Typescript, React and CSS with track record of delivery · Exposure to Rx and More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

C# Developer

London, United Kingdom
Pontoon
dynamic organization? We have an exciting opportunity for you to join our client's team, where you will develop and support cutting-edge BI Business applications using the MS .NET platform. If you thrive on challenges and enjoy collaborating with various teams, we want to hear from you! What You'll Do: As a C# Developer, you will play … with Oracle and SQL Server databases. Quality Assurance: Conduct unit testing and ensure quality at every stage of development. Support Existing Applications: Provide ongoing support for current C# and .NET applications, ensuring optimal functionality. Collaboration: Work closely with the IT department to maintain the environments where applications run. Additional Responsibilities: Define necessary database objects and liaise with SQL and … application servers. Troubleshoot JRIE systems during outages and implement effective solutions. Maintain adherence to the Development Teams' Change Management Control procedures. Stay updated with the latest versions of MS .NET Framework and Visual .NET platforms. Who You Are: Proficient in C# and the .NET framework, with a strong understanding of database management (SQL Server & Oracle). A More ❯
Employment Type: Contract
Rate: £400 - £415/day Inside IR35
Posted:

C# Developer

London, South East, England, United Kingdom
Pontoon
dynamic organization? We have an exciting opportunity for you to join our client's team, where you will develop and support cutting-edge BI Business applications using the MS .NET platform. If you thrive on challenges and enjoy collaborating with various teams, we want to hear from you! What You'll Do: As a C# Developer, you will play … with Oracle and SQL Server databases. Quality Assurance: Conduct unit testing and ensure quality at every stage of development. Support Existing Applications: Provide ongoing support for current C# and .NET applications, ensuring optimal functionality. Collaboration: Work closely with the IT department to maintain the environments where applications run. Additional Responsibilities: Define necessary database objects and liaise with SQL and … application servers. Troubleshoot JRIE systems during outages and implement effective solutions. Maintain adherence to the Development Teams' Change Management Control procedures. Stay updated with the latest versions of MS .NET Framework and Visual .NET platforms. Who You Are: Proficient in C# and the .NET framework, with a strong understanding of database management (SQL Server & Oracle). A More ❯
Employment Type: Contractor
Rate: £400 - £415 per day
Posted:

Backend Engineer

City of London, London, United Kingdom
Adroit People Ltd
years experience building backend systems using .NET Core/.NET 6/8+ and C#. Strong experience with Azure, including Container Apps, Functions, Service Bus, Networking and API Management. Proven ability to build secure, scalable, and maintainable APIs and integrations. Familiarity with CI/CD pipelines and DevOps workflows in Azure DevOps or similar. Experience implementing authentication, authorisation More ❯
Employment Type: Contract
Rate: £350 per day
Posted:

Power Apps Developer

London, South East, England, United Kingdom
Hybrid/Remote Options
VIQU IT Recruitment
and maintenance of a data and reporting application for our client, working alongside cross-functional technical teams in an Agile environment. The project will involve using a combination of .Net Web App and Microsoft Power Apps with a Microsoft Dataverse data store. Key skills & experience: Solid experience using .Net to develop web applications Proficiency developing both Model-Driven More ❯
Employment Type: Contractor
Rate: £300 - £320 per day
Posted:

D365 Developer & Analyst

London, South East, England, United Kingdom
Hybrid/Remote Options
Next Best Move
We are working with a leading charity based in Central London to recruit a D365 Developer & Analyst . This is a fantastic opportunity for a proactive and technically skilled individual to play a key role in developing solutions in collaboration More ❯
Employment Type: Contractor
Rate: £45,000 per annum
Posted:

C# Developer (x13)

London, United Kingdom
Hybrid/Remote Options
Computappoint
Hybrid: 3-day onsite at Canary Wharf Initial 6-months with potential extension Rate: Up to £415/day inside C# Developer (.Net) Location: Canary Wharf Hybrid: 3 days onsite per week Rate: £415 per day (Inside IR35) Duration: 6 months initial contract with potential extension up to 2 years with a Permanent conversion option Positions Available: 13 positions … hiring on behalf of our client, a leading financial services company, within their Business Intelligence development team. The role focuses on developing and supporting business applications using the MS .NET platform (C#, Visual Studio) and working with both Oracle and SQL Server databases. You'll be joining a collaborative team that delivers key business solutions across various environments. Key … Responsibilities: Design, develop, and maintain business applications using Visual C# .NET with Oracle and SQL Server databases Provide ongoing support for existing C# and .NET applications, including troubleshooting and implementing solutions Write and optimise T-SQL and PL/SQL scripts for data analysis and reporting requirements Collaborate with Database Administrators, Technical Support, and Infrastructure teams across London More ❯
Employment Type: Contract
Rate: GBP 415 Daily
Posted:

C# Developer

City of London, London, United Kingdom
Adecco
My Financial Services client is seeking to recruit a C# .NET Developer on an initial 6 month contract based in London. It is hybrid and will require 3x days onsite per week. Essential: Strong background in C# programming and .Net technologies Strong Windows background Strong experience with relational databases and SQL Proven experience in continuous improvement of areas … and operational requirements Good work ethic, with a focus on meeting deadlines and objectives Along with the application development, this role will also include supporting the existing C# and .NET applications. Strong hands-on skills for C# Windows applications is required. More ❯
Employment Type: Contract
Rate: £400 - £415/day
Posted:
.NET
London
10th Percentile
£363
25th Percentile
£404
Median
£500
75th Percentile
£650
90th Percentile
£700