1 to 25 of 32 Contract C# Jobs in London

Senior Full Stack Developer (React & C#.NET)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
/Day (Inside IR35) About the Role Join our dynamic team as a Senior Full Stack Developer, where your expertise in React JS and C# .NET Core will shine! We are looking for a tech-savvy professional with a passion for building scalable applications within the financial sector. This … Front-end: Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential Back-end: Expertise in C# .NET Core, REST APIs, and microservices-based development is essential Python (pyspark): Experience with data pipelines and analytics is a plus. Power BI: Familiarity with ...

Senior Integration Engineer (Azure)

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £600 per day
mentoring our permanent engineering team. What You Bring Integration Expertise: 5+ years of software development experience building robust APIs (REST, SOAP, JSON, XML) using C#, .NET, JavaScript, or Python. Azure Mastery: Deep, proven knowledge of Azure Integration Services, including API Management, Logic Apps, Service Bus, Azure Data Factory, and Azure ...

Full Stack Engineer - Inside IR35 - Hybrid

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £570 per day
pain points, and translate them into technical solutions Strong problem-solving skills with a systems-thinking mindset Highly Valuable Experience Experience with .NET, ideally C# Experience building internal platforms or developer tooling (e.g., PaaS) Experience supporting data science or analytics workflows Experience with CI/CD pipelines (e.g., Azure DevOps ...

Senior Full Stack Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £600 per day
What you’ll be doing Designing and building end-to-end full-stack solutions in a modern cloud environment Backend development using Python and C# Frontend development with TypeScript and React Working within Azure (Functions, Azure SQL, Service Bus, ADF) Contributing to architecture discussions, technical design, and code reviews Applying ...

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 Web Application Developer ASP.NET MVC 5, C#, & React

Hiring Organisation
PCR Digital
Location
Hammersmith, London, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £538/day Inside IR35 to Umbrella
Senior Web Application Developer ASP.NET MVC 5, C#, & React Location: Hybrid 3/4 days p/w onsite West London Must have right to work in the UK and located near West London 3 months contract (extension TBC) Start ASAP (Immediate start/within 2 weeks notice) Inside IR35 … rata £(Apply online only)k Seeking a Senior Web Application Developer (ecommerce) with Minimum 8 years of Web application development experience consisting of strong C#, ASP.NET MVC 5, and React. Strong knowledge of Object-Oriented Programming, SOLID principles, common design patterns and RESTful API design and integration (experience with SOAP ...

Full Stack Engineer

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day Inside IR35
house environment Strong Python engineer with hands on experience using SQL, AWS and Terraform, e.g. building investment analysis or data-driven platforms C#/.NET experience desirable (but not core) - typically for microservice changes, platform enhancements or Windows migration work rather than greenfield builds Investment Management/Financial Services experience ...

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 ...

Lead .Net/SQL Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 - £850 per day
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 ...

RPA Developer (UiPath)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
bots for efficiency and performance gains. Required Skills & Experience 36 years of hands on UIPath experience (Studio, Orchestrator, Assistant). Proficiency in VB.NET/C#, Regex, LINQ, and working with APIs (REST/SOAP). Experience integrating with OCR tools (ABBYY, Document Understanding, AI Center). Understanding of BPM, workflow ...

Python Risk Developer - Contract - Shell Scripting, Pandas, Polars, AWS, SQL, indices

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Time data processing and streaming architectures Familiarity with performance optimization and profiling tools Experience with Docker and container orchestration Technical Skills Languages : Python, SQL, C#, Shell Scripting Frameworks : FastAPI/Flask, Pandas, Polars Cloud : AWS ecosystem Tools : Git, Docker, Jenkins/GitHub Actions By applying to this ...

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 ...

Senior DevSecOps Engineer

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Extensive experience in designing enterprise-scale CI/CD solutions, with a focus on GitLab. Hands-on experience in supporting build pipelines for Java, C#, JavaScript, and Python is essential. Cloud & Containerization Expertise : Proven ability to deliver containerized and cloud-ready applications, with experience in integrating CI/CD pipelines ...

Dynamics CRM Solution Architect - Higher Education

Hiring Organisation
GlobalTech Recruitment
Location
London, United Kingdom
Employment Type
Contract
Automate Nice to have: Experience developing and consuming APIs and web services Knowledge of API security standards and Azure Active Directory integration Proficiency in C#, .NET, or other modern programming languages Experience of DevOps including CI/CD pipelines, version control and deployment strategies If this sounds like you, please ...

Junior Quantitative Developer

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£45,000 - £65,000 per annum
across our engineering hubs (London, New York City, and Sydney) About You Professional experience programming in a strongly typed programming language such as C#, Java, C++, Go, or Rust Working knowledge of producing quantitative applications targeting at least one major asset class (e.g. Credit, Rates, FX, Equities, Commodities, etc.) Degree ...

Front-End Developer (React and React Native)

Hiring Organisation
Foresters Financial
Location
Bromley, London, United Kingdom
Employment Type
Contract, Work From Home
facing front-end applications Ability to work with web services that integrate with external systems Experience designing or working closely with APIs .NET/C# experience is desirable but not essential Confident communicator, able to work effectively with both technical and non-technical stakeholders Excellent problem-solving and analytical skills ...

Cloud Infrastructure Engineer

Hiring Organisation
VIQU IT
Location
Central London, Bishopsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day Inside IR35
Github Actions, Terraform, and Azure within a Cloud Infrastructure Engineer capacity. • Good working knowledge and practical experience of Azure Monitoring. • Software development experience using C# and SQL Server. • Experience of Packer, Kubernetes, AKS, Flux or Helm The successful Cloud Infrastructure Engineer must be available to work 2 days a week ...

.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. ...

Application Test Analyst (Manual & Automation)

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£415 - £416/day
Positive Attitude: A cheerful and professional demeanor that contributes to a fun and productive work environment. Ideally you will have some coding experience (C# or .NET would be beneficial) Ready to Make an Impact? If you're excited to take on new challenges and contribute to a team that values ...

Senior Web Application Developer (Full Stack)

Hiring Organisation
CPS Group (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £525/day
Senior Full-Stack Web Application Developer Role: Senior Web Application Developer (Full-Stack) Specialism(s): eCommerce, ASP.NET MVC 5, C#, React, Migrations, Microsites, Cloud-Native, HTML5/CSS3/JavaScript, API, CI/CD, IoC Containers, Agile Type: Contract, Daily Rate Duration: 3+ Months Location: London Pay Rate … coding standards, and supporting the journey toward a fully cloud-ready environment. Role Requirements * Develop and maintain complex web solutions using ASP.NET MVC 5, C#, and React * Support migration activities, ensuring clean architecture, scalable design, and efficient implementation * Produce secure, maintainable, scalable, and fault-tolerant code following SOLID principles ...

Junior/Mid Software Developer (Investment Banking - Trading)

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £650 per day
Demonstrable ownership, pro activeness, and attention to detail Communication skills and ability to work with multiple stakeholders Banking experience not essential Required technical experience: C#, C++, Python XML, IIS Ability to debug and support production systems Reasonable Adjustments: Respect and equality are core values to us. We are proud ...

MS Dynamics Developer (Power Automate / D365 F&O London, UK Security Clearance Required

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£486 per day
high-quality ERP and automation solutions.You’ll be responsible for:- Customising and configuring Dynamics 365 Finance & Operations using Visual Studio, LCS, UDE, PPAC, X++, C# and extension models- Supporting all phases of the D365 F&O implementation lifecycle- Enhancing key modules such as Procurement, Vendor Management, General Ledger, Budgeting, Payments ...

Testing Manager

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 per day
managing defects, coordinating resolution with technical teams and providing clear reporting. Ability to design and maintain simple test automation scripts using tools such as C# or other lightweight frameworks. Experience using test and defect management tools such as ServiceNow or SAP Calm. Strong stakeholder management skills and ability to communicate ...

Build & Imaging Support

Hiring Organisation
Aatom Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £350 per day
Imaging Support Job Title: Build & Imaging Support Contract Duration: 6 Months Hours per week: 36 Job Details: Skills PowerShell scripting and .NET programming (VB.NET, C#) for build automation, endpoint management, and the development of reusable script libraries. Windows OS image engineering using Windows ADK and DISM, covering online and offline ...

Senior Software Engineer

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
operating in a secure environment. Responsibilities: Designing, developing and maintaining features across secure communications and decision support platforms Building and maintaining backend services using C# and related technologies Developing and enhancing user interfaces using React Contributing to security focused system design when working with highly sensitive data Taking ownership … engineers, product specialists and stakeholders and, at senior level, contributing to mentoring and technical discussions About You Strong commercial experience in backend development using C# and the .NET ecosystem Frontend development experience using React or a similar modern JavaScript framework Solid understanding of software engineering fundamentals and agile delivery practices ...