21 of 21 Contract C# Jobs in London

Full Stack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£45,000 - £65,000 per annum
engineering experience, ideally within real-time or trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis ...

MS Dynamics 365 CE Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
Canvas Apps on Dataverse Power Automate Deep expertise in Cloud Flows, Desktop Flows (RPA), and Business Process Flows Custom Development Strong proficiency in C#, TypeScript, JavaScript, and .NET for plugin and PCF control development Dataverse Knowledge of data modelling, security roles, business rules, and Dataverse APIs Integrations Proven track record ...

Software Engineering Manager - Technical Delivery

Hiring Organisation
The Curve Group
Location
City of London, London, United Kingdom
Employment Type
Contract
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 ...

Senior Python Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540 per day
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 ...

Technical Analyst

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £490/hour
delivery environments Knowledge of data modelling concepts Strong communication and stakeholder management skills Experience with tools like JIRA, Confluence and Azure DevOps Exposure to C# or similar technologies is desirable We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient ...

Lead .Net Developer x 2

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£800 - £850/day Up to £850pd Umbrella
actively seeking multiple Senior .Net Developers to work on a long-term, business-critical data-orientated project. What you'll need to succeed : Extensive C# .Net Development experience ideally within financial services, on data-heavy projects. Extensive SQL server experience - Must Have. Solid experience in database modelling, performance tuning ...

.NET Developer, CMS, Sitecore, Optimizely

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £400 per day
.NET Developer, CMS, Sitecore, Optimizely, Umbraco - Remote (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a leading digital agency powerhouse, delivering transformative online experiences for some of the most recognised brands across Europe. … involved in building dynamic, content-rich platforms and seamless customer journeys using modern .NET technologies. Applicants should have experience in: .NET, .NET Core, C# and Azure SQL. Candidates should also have exposure to a Content Management System (CMS) such as Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or DotNetNuke. ...

Cloud Infrastructure Engineer

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £700 per day
Must have extensive hands-on experience: Azure DevOps PowerShell SQL CI/CD pipelines GitHub Terraform (Infrastructure as Code) Desirable hands-on experience: Kubernetes C# development Packer Helm AKS Flux The successful Cloud Infrastructure Engineer must be available to work 2 days a week onsite in Central London. Apply ...

Full Stack Developer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 per day
Essential skills: .Net, C#, React, Azure Skills required: As a Full Stack Developer, you will provide expert development skills to maintain multiple service capabilities, including;Collaboration and Stakeholder Engagement:Collaborate closely with product owners, user researchers, clinical safety officers, operational teams, and development stakeholders to clarify user needs and translate ...

MS Dynamics 365 CE Developer/Architect

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
Canvas) on Dataverse - Develop and implement Power Automate flows (cloud, desktop, and business process flows) - Create custom plugins, PCF controls, and web resources using C#, JavaScript, and .NET - Integrate D365 with third-party systems using APIs and Azure services - Develop and maintain Dataverse data models ensuring performance and security - Build … environments ________________________________________ Essential Skills & Experience - Strong hands-on experience with Dynamics 365 CE and Power Platform - Expertise in Power Apps and Power Automate - Proficiency in C#, .NET, JavaScript, and/or TypeScript - Strong knowledge of Dataverse (data modelling, security, APIs) - Experience with integrations (REST/SOAP APIs, Azure Integration Services) - Familiarity ...

Backend Developer

Hiring Organisation
Sanderson Government and Defence
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 420 Daily
Strong foundation in software development with C# and TypeScript. - Experience with AI/LLM concepts (e.g., prompt engineering, RAG). - Analytical mindset for assessing sufficiency (relevance, completeness, freshness) and mitigating risks like hallucinations. - Focus on Clean Architecture and Clean Code principles. Reasonable Adjustments: Respect and equality are core values ...

Backend Developer

Hiring Organisation
Sanderson Government and Defence
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £420 per day + Inside IR35
Strong foundation in software development with C# and TypeScript. - Experience with AI/LLM concepts (e.g., prompt engineering, RAG). - Analytical mindset for assessing sufficiency (relevance, completeness, freshness) and mitigating risks like hallucinations. - Focus on Clean Architecture and Clean Code principles. Reasonable Adjustments: Respect and equality are core values ...

Senior Full Stack Engineer

Hiring Organisation
Station Group International Limited
Location
West London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
role in delivering modern digital platforms. The Role You will be designing, building and maintaining scalable web applications using: .NET 6+/.NET Core (C#) Angular (modern versions) Azure PaaS (App Services, Functions, SQL, EntraID) REST APIs Azure DevOps CI/CD pipelines Youll be involved across the full lifecycle … Agile team focused on quality and collaboration. What Were Looking For 6+ years full stack development experience Strong hands-on .NET Core/C# Solid Angular experience (not just backend-heavy) Azure cloud exposure (App Services, Functions, SQL) Experience working in structured, collaborative engineering teams Comfortable working onsite 3 days ...

Repo Trading Systems C# Developer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Title: C# Developer - Fixed Income and Repo Trades Location: London, 3 days per week in the office Contract Length: 12 Months + Day Rate: Negotiable via Umbrella Company Are you ready to take your C# development skills to the next level in a dynamic financial environment? Join … leading Financial Institution where your talents will shine! We're looking for a passionate Repo Trading Systems C# Developer to enhance our trading technology and make a real impact. What You'll Do: Develop and enhance robust C# applications for our Repo Trading systems. Collaborate with traders and analysts ...

Lead Integration Engineer

Hiring Organisation
The Curve Group
Location
City of London, London, United Kingdom
Employment Type
Contract
scalable operations. The Role: Lead the design, development, and support of integration solutions connecting applications, services, and data across the business. Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). Implement CI/CD pipelines, automation, and modern … standards. Champion best practices for API-led connectivity, event-driven architectures, and pub/sub messaging patterns. What's required: Strong experience with .NET (C#) for APIs and integration components. Hands-on with Azure Integration Services, microservices, and containerisation (Docker, AKS). Experience in Financial Services is essential; knowledge ...

C# Developer

Hiring Organisation
Apex Systems US
Location
Bromley, Greater London, Bromley Town, United Kingdom
Employment Type
Contract
Contract Rate
£50 - £55/hour
Title: C# Developer Location: Bromley, UK Type: Contract Candidates will be proficient in software design focused on a cross-language REST based n-tier architecture and executed using agile methodologies (Scrum, Test Driven Development, unit/integration testing, pair programming, etc.). The successful candidate will be comfortable driving design … develop our CI pipeline and deployment strategies REQUIRED SKILLS/EXPERIENCE Demonstrable experience of having designed and developed complex server-side functionality in C# SQL - preferably Oracle Shell scripting and basic Unix knowledge desirable Proficient in writing unit, integration, and acceptance tests Comfortable in an agile working environment Self-starter ...

C# Developer - Desktop Applications

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £415/day inside IR35
Global bank based in Canary Wharf. Role - C# Developer - Desktop Applications Duration - 6 months with likely extension Rate - £415 p/d (inside IR35) Location - Hybrid/Canary Wharf Tech Stack C# WPF Winforms SQL Oracle Tasks Tasks range from understanding business requirements, designing application structures, business data analysis, programming ...

2x Senior Data (Platform) Engineers (AWS/ SQL Server)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
Your new company Working for a globally renowned financial organisation Your new role We are seeking 2x Senior Software Engineer/Data Platform Engineer's to support the ongoing evolution of a large-scale financial ...

Full Stack Engineer

Hiring Organisation
TXP
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day Inside IR35
recruiting for 3 Full Stack Engineers for a client in the financial service space. The client requires Engineers who have experience with UI, APIs, C#, AWS, Python and Terraform. You must be an excellent communicator, due to the work required on the project, along with experience in either R Programming … investment or finance, with sufficient domain familiarity to be productive quickly without significant onboarding in core financial concepts. Strong proficiency in the following technologies: C#, Python, SQL, Terraform, AWS Proven ability to work directly with stakeholders and users to understand problems and deliver effective solutions. Strong analytical and problem-solving ...

Pricing Services UI Developer

Hiring Organisation
Reed
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£900 - £925 per day, Inc benefits
seeking a highly skilled Pricing Services and Risk Viewer UI Developer to join our dynamic team. This senior software development position requires excellent C# and TypeScript/React skills, a strong knowledge of pricing models, quant libraries and risk analytics for both vanilla and exotic FX derivatives. The successful candidate … Contribute to the continuous improvement of coding standards, testing frameworks, and development practices. Required Skills & Qualifications: substantial experience in software development. Highly experienced in C#, TypeScript/React, and Quant Library integration. Solid understanding of mathematics as applied to derivatives risk and pricing. Excellent written and verbal communication skills ...

Software Engineer

Hiring Organisation
FryerMiles Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
development lifecycle. Key Responsibilities Design, develop, and maintain software applications for public sector clients Write clean, efficient, and well-documented code Work primarily with C# and JavaScript to build modern, secure systems Collaborate with technical and non-technical stakeholders to deliver solutions that meet user needs Participate in code reviews … existing codebases Contribute to continuous improvement of development processes and standards Requirements: Strong experience in software development, with a focus on coding Proficiency in C# and JavaScript Solid understanding of software engineering principles and best practices Experience writing and maintaining production-quality code Ability to work independently and as part ...