Contract 'C#' Job Vacancies

1 to 25 of 68 Contract C# Jobs

API Integration Specialist

Oxfordshire, South East, United Kingdom
Halian Technology Limited
debugging, and testing skills. Ability to work collaboratively in a dynamic, cross-functional environment. Experience with project management or Agile methodologies. Desirable: Programming skills in Python, JavaScript, SQL, Java, C#, or Ruby. Experience with Microsoft Cloud, AWS, cloud infrastructure, or Microservices architecture. Familiarity with Power Apps, Power BI, Microsoft Graph API, Azure Logic Apps/Functions, and Dataverse. Experience with More ❯
Employment Type: Contract
Rate: From £500 to £525 per day
Posted:

SC Cleared Azure Cloud Developer

Gloucestershire, South West, United Kingdom
IO Associates
Maintain strong focus on security , compliance , and best practices for Azure environments. Required Skills & Experience Proven experience as an Azure Developer or DevOps Engineer . Strong programming skills in C#, .NET, Python, or JavaScript/TypeScript . Hands-on experience with Azure App Services, Functions, Logic Apps , and Storage Accounts . Proficiency in Azure DevOps , Git , and YAML pipeline configuration More ❯
Employment Type: Contract
Rate: £475 - £525 per day
Posted:

Quantitative Developer

East London, London, England, United Kingdom
Hybrid / WFH Options
Robert Half
validation, performance tuning, and version control processes. Stay up to date with advances in quantitative finance, computational techniques, and emerging technologies. Profile Strong programming experience in Python, C++, or C#; knowledge of NumPy, Pandas, and QuantLib advantageous. Solid understanding of mathematics, statistics, and numerical methods - including stochastic calculus, Monte Carlo simulation, and optimisation. Familiarity with derivatives pricing, risk metrics, and More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Endur Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Staffworx Limited
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 and front-to-back workflows. Desirable Skills Familiarity with SQL Server, Oracle More ❯
Employment Type: Contract, Work From Home
Posted:

D365 FO Technical Architect - FO, Azure, Power BI

London, United Kingdom
Hybrid / WFH Options
Hays Technology
D365 F&O implementations Strong hands-on experience with D365 F&O, Life Cycle Services, and Azure DevOps (source control, gated check-ins, pipelines). Skilled in X++, .NET, C#, and building integrations using REST/SOAP. Solid understanding of DIXF, Azure Data Factory, and integration patterns (synchronous/asynchronous, oData). Practical experience with the Data Management Framework (BYOD More ❯
Employment Type: Contract
Rate: £550 - £595/day up to £595 pd (Inside IR35)
Posted:

D365 FO Technical Architect - FO, Azure, Power BI

London, South East, England, United Kingdom
Hybrid / WFH Options
Hays Specialist Recruitment Limited
D365 F&O implementations Strong hands-on experience with D365 F&O, Life Cycle Services, and Azure DevOps (source control, gated check-ins, pipelines). Skilled in X++, .NET, C#, and building integrations using REST/SOAP. Solid understanding of DIXF, Azure Data Factory, and integration patterns (synchronous/asynchronous, oData). Practical experience with the Data Management Framework (BYOD More ❯
Employment Type: Contractor
Rate: £550 - £595 per day
Posted:

Microsoft Teams Developer

London, South East, England, United Kingdom
Jonothan Bosworth
API portal , complete with onboarding, documentation, and usage examples. Working closely with internal teams to deliver a scalable, compliant, and well-documented solution. Writing clean, well-structured code using C#/.NET Core (with possible TypeScript/JavaScript extensions). What We’re Looking For: Strong background in Microsoft Azure , including API Management , Azure AD , and App Services . Experience More ❯
Employment Type: Contractor
Rate: £200 - £500 per day
Posted:

Power Platform Developer

London, United Kingdom
Hybrid / WFH Options
Adecco
with HCL Notes (Lotus Notes) versions 9 - 12 is essential. Solid understanding of Azure services, including Azure Functions, Logic Apps, Azure Service Bus, and Azure DevOps. Strong proficiency in C#, .NET, and Unit Testing. Familiarity with CI/CD processes for Power Platform and Azure Services. Prior experience with LotusScript and HCL Notes Formula Language. Background in finance or investment More ❯
Employment Type: Contract
Rate: £415/day
Posted:

IT Tutor - Software Engineering & Development

East London, London, United Kingdom
Langton not 4 profit
and/or equivalent qualification/knowledge gained through experience. Knowledge of Software Developing Tools and Concepts at Level 3 and 4. Knowledge and application of the programme languages C#, HTML5, CSS3, JavaScript, SQL, Python, Java, PHP, Mobile app design & Development. Creativity and flexibility to develop and enhance teaching materials in order to engage learners and respond to learner interests. More ❯
Employment Type: Contract, Part Time
Posted:

Sharepoint Expert

London, United Kingdom
Brightbox GRP Ltd
or consulting roles. - Strong proficiency in SharePoint Online, SharePoint 2016/2019, and Office 365. - Expertise in SharePoint Framework (SPFx), PowerShell, REST APIs, and SharePoint Designer. - Proficiency in JavaScript, C#, HTML/CSS, and SQL Server for custom development and integration. - Experience with document management best practises, including metadata tagging, version control, and retention policies. - Familiarity with AI integration workflows More ❯
Employment Type: Contract
Rate: £400 per day
Posted:

Software Engineer

Suffolk, England, United Kingdom
Oscar Technology
p/day (OIR35) Start date: ASAP What we're looking for: 4+ years' experience in software engineering (SaaS or start-up background preferred) Strong proficiency in Python and C#, with hands-on experience in API design and cloud architecture (Azure). Experience with Excel add-ins or Office JavaScript APIs is highly desirable. Exposure to vectorization, RAG (Retrieval-Augmented More ❯
Employment Type: Contractor
Rate: £375 - £425 per day
Posted:

Software Engineer

Suffolk, East Anglia, United Kingdom
Oscar Associates (UK) Limited
p/day (OIR35) Start date: ASAP What we're looking for: 4+ years' experience in software engineering (SaaS or start-up background preferred) Strong proficiency in Python and C#, with hands-on experience in API design and cloud architecture (Azure). Experience with Excel add-ins or Office JavaScript APIs is highly desirable. Exposure to vectorization, RAG (Retrieval-Augmented More ❯
Employment Type: Contract
Rate: £375 - £425 per day
Posted:

Lead Data & Systems Architect

Leicester, United Kingdom
NHS Arden and Greater East Midlands Commissioning Support Unit
that will deliver the long-term strategy of the organisation Logical approach to problem solving Advanced keyboard skills Uses innovation to deliver solutions Proven abilities in scripting with Powershell, C#, VB, SQL Able to prioritise work, schedule and organise own time and that of the team and commitment to team-working Pragmatic approach to deal with extremely complex situations Desirable More ❯
Employment Type: Fixed-Term
Salary: £55690.00 - £62682.00 a year
Posted:

Low Latency Java Developer

Central London, London, England, United Kingdom
Reed
role involves developing pricing, hedging, and low-latency order and price distribution systems for the eFX desk. You will be part of a team that includes both Java and C# developers working on server-side and UI components. Required Skills & Qualifications: Proven experience in Java development, specifically in low-latency environments. Strong understanding of FX or similar low-latency trading More ❯
Employment Type: Contractor
Rate: £900 - £918 per day, Inc benefits
Posted:

Power Platform Developer

Edinburgh, Midlothian, Scotland, United Kingdom
Lorien
and Power Platform solutions (Power Apps, Power Automate, Power BI). Deep knowledge of Microsoft Dynamics CRM 365 architecture, configuration, customisation and delivery. Proficiency in programming languages such as C# and JavaScript, and scripting languages like PowerShell. Strong problem-solving skills with a focus on delivering practical and efficient solutions. Excellent communication and interpersonal skills to work effectively with team More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Fixed Income Front Office QA Automation Engineer

London, South East, England, United Kingdom
Adecco
and IT teams to ensure smooth releases and delivery Required Skills and Experience Extensive experience in software testing and QA automation within financial services Strong coding skills in Java, C#, Python, or .NET Experience with Selenium, Cucumber, REST Assured, JIRA, XRAY, and CI/CD tools such as Bitbucket, Bamboo, or Jenkins Strong understanding of Fixed Income products and E More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Automation Application (RPA) Developer

London, United Kingdom
Computappoint
with 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: Contract
Rate: GBP 415 Daily
Posted:

C# Developer

London, South East, England, United Kingdom
Pontoon
C# .NET Developer Location: London (3 days onsite per week) Contract: 6 months Rate: £415 per day (via umbrella company) We're looking for a hands-on C# .NET Developer to join our JRIE Development team as an AVP. This is a fantastic opportunity to work on business-critical Windows applications in a collaborative, technically strong environment. If you have … a passion for backend development, large-scale databases, and delivering high-quality code, we'd love to hear from you. Key Responsibilities Develop and maintain C# .NET Windows applications using SQL Server and Oracle. Translate business requirements into scalable technical solutions. Write and optimize SQL scripts (T-SQL and PL/SQL). Support production, disaster recovery, and development environments. … procedures and maintain application change history. Provide occasional out-of-hours support (weekday/weekend). What We're Looking For Essential Skills & Experience Strong hands-on experience in C# and .NET development. Solid background in Windows application development. Proficient in SQL scripting, especially with large datasets. Understanding of MS .NET Framework and object-oriented programming. Excellent communication skills with More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Senior Software Engineer

Cheshire, United Kingdom
The Bridge IT Recruitment
with Product Owners, Architects, and DevOps to ensure delivery excellence across a diverse range of projects. What You'll Be Doing Software Development Design, build and maintain applications using C#, .NET Core, .NET 4.x, and React.js Design and implement RESTful APIs and Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design … estimate and manage work against timelines Participate in Agile ceremonies and planning What We re Looking For Must-Have Experience: 5+ years in software engineering roles Highly Proficiency in C#, .NET Core , React.js , and SQL Server/SQL Strong background in building scalable backend systems and modern frontends (React) Experience with Azure cloud services and CI/CD pipelines Preferred More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Senior Software Engineer

Cheshire, Ellesmere Port Town, United Kingdom
The Bridge IT Recruitment
with Product Owners, Architects, and DevOps to ensure delivery excellence across a diverse range of projects. What You'll Be Doing Software Development Design, build and maintain applications using C#, .NET Core, .NET 4.x, and React.js Design and implement RESTful APIs and Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design … estimate and manage work against timelines Participate in Agile ceremonies and planning What We’re Looking For Must-Have Experience: 5+ years in software engineering roles Highly Proficiency in C#, .NET Core , React.js , and SQL Server/SQL Strong background in building scalable backend systems and modern frontends (React) Experience with Azure cloud services and CI/CD pipelines Preferred More ❯
Employment Type: Contract
Posted:

Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Deerfoot Recruitment Solutions Ltd
and reporting. Mentor engineers and help shape the platform's architecture. What We're Looking For: 4+ years in software engineering (start-up or SaaS preferred). Strong Python & C# skills; API and cloud architecture experience (Azure a plus). Experience with Excel add-ins or Office JS APIs is desirable. Familiarity with AI frameworks (vectorization, RAG) is a bonus. More ❯
Employment Type: Contractor
Rate: £450 - £500 per day
Posted:

Automation QA Engineer- Insurance

London, South East, England, United Kingdom
Lorien
ensuring consistent and reliable testing outcomes. Experience Hands-on experience in automation tools such as Selenium, TestNG, JUnit, Cypress, Playwright, or similar . Strong programming/scripting skills in C# or Java Experience with CI/CD pipelines (Jenkins, GitHub Actions, or Azure DevOps). Exposure to API testing tools (Postman, RestAssured, ). Experience in data-driven testing and validation More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

AI Implementation Specialists - Banking

London, South East, England, United Kingdom
Venn Group
Graph API, and Semantic Kernel Microsoft Purview for data governance and compliance Azure Key Vault, RBAC, CI/CD pipelines, and DevSecOps Programming proficiency in Python and/or C# Familiarity with: Responsible AI frameworks (e.g., NIST AI RMF, ISO/IEC 42001) Regulatory standards (EU AI Act, GDPR, FCA guidance) LangChain, AutoGen, Azure AI Search, Form Recognizer, and Language More ❯
Employment Type: Contractor
Rate: Competitive salary
Posted:

ECB Programme Test Manager

London, United Kingdom
Hybrid / WFH Options
Adecco
Skills & Experience: Extensive QA Experience: A strong background in Quality Assurance, with proven leadership roles in global investment banking environments. Technical Proficiency: Demonstrated expertise in test frameworks such as C# and Java, covering UI, API, and data testing. Test Automation & CI/CD: A robust track record in test automation, including the creation of dashboards, KPIs, and integration into CI More ❯
Employment Type: Contract
Rate: £600 - £700/day
Posted:

AI Agentic Engineer

London, South East, England, United Kingdom
Huxley
Platform, including: Copilot Studio, Power Automate, Power Apps, and custom connectors Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel Solid programming skills in Python and/or C# Experience with: LangChain, AutoGen, or similar orchestration frameworks Azure AI Search, Form Recognizer, and Language Services GitHub Actions, CI/CD, and DevSecOps practices. Contract: 6 Months Rolling Rate More ❯
Employment Type: Contractor
Rate: £595 - £695 per day
Posted:
C#
10th Percentile
£338
25th Percentile
£404
Median
£500
75th Percentile
£645
90th Percentile
£750