Contract .NET Jobs in London

1 to 25 of 44 Contract .NET Jobs in London

Senior Angular Developer - Shipping, Physical Inventory, Oil

London, South East, England, United Kingdom
Harvey Nash
Senior Angular Developer - Shipping/Physical Inventory sought by leading financial services organisation based in West London.**Outside IR35 - 3 days a week on site** SUMMARY This role will suit a full-stack developer, with a broad, yet modern skill More ❯
Employment Type: Contractor
Rate: £600 - £700 per day
Posted:

Full Stack Software Developer, C# .NET, Remote, £425 day rate, Outside IR35, COR7283

London, South East, England, United Kingdom
Hybrid / WFH Options
Corriculo Ltd
Full Stack Software Developer, C# .NET, Remote, £425 day rate, Outside IR35, COR7283 We’ve looking for an experienced Full Stack Software Developer for a contract role available immediately, lasting until November. This role is fully remote and outside IR35, offering a day rate of up to £425. Candidates must live and be eligible to work in the UK. … As a Full Stack Software Developer, you will be responsible for developing and maintaining software solutions using C# and .NET Core, ensuring high-quality code and adherence to best practices. What’s required of the Full Stack Software Developer? Proven experience developing full stack applications with C# and .NET Core Experience with Microsoft SQL Server Strong front-end … understanding of good user interface design What Next? If you’re an experienced Full Stack Software Developer available immediately, apply today to learn more! Full Stack Software Developer, C# .NET, Remote, £425 day rate, Outside IR35, COR7283 Corriculo Ltd acts as an employment agency and an employment business. #AS More ❯
Employment Type: Contractor
Rate: £375 - £425 per day
Posted:

Senior .NET/C# Developer (Oracle to PostgreSQL migration)

London, United Kingdom
Salt
Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and … .NET (C#). This is not a simple lift-and-shift; the project involves re-engineering over 240 Oracle stored procedures, some highly complex, into performant, maintainable C# code. The new system will coexist with the legacy platform during the transition, requiring careful integration and support for business-as-usual (BAU) operations. Key Responsibilities Collaborate with the existing team … to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET-based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that supports phased migration. Use AI More ❯
Employment Type: Contract
Rate: £500 - £600 per day
Posted:

Senior .NET/C# Developer Oracle to PostgreSQL migration

London, South East, England, United Kingdom
Salt Search
Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and … .NET (C#). This is not a simple lift-and-shift; the project involves re-engineering over 240 Oracle stored procedures, some highly complex, into performant, maintainable C# code. The new system will coexist with the legacy platform during the transition, requiring careful integration and support for business-as-usual (BAU) operations. Key Responsibilities Collaborate with the existing team … to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET-based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that supports phased migration. Use AI More ❯
Employment Type: Contractor
Rate: £500 - £600 per day
Posted:

Product Engineer / Software Engineer

City of London, London, United Kingdom
Mentmore Recruitment
Support the automation of testing and deployment pipelines to improve release velocity and confidence. Technical Skills Required: Proficiency in modern programming languages and frameworks (e.g. JavaScript/TypeScript, Python, .NET, Node.js). Experience with frontend development (e.g. React, Angular, Hugo). Strong understanding of backend systems, API design, and system integration. Comfortable working with cloud platforms such as Microsoft More ❯
Employment Type: Contract
Rate: £70000 - £80000/annum
Posted:

Senior .NET/C# Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Morgan McKinley
Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development … tooling. Your Responsibilities: Re-engineer Oracle PL/SQL logic into performant and maintainable C# services. Design and build .NET components that interact with both PostgreSQL and legacy PHP systems. Work closely with BAs and stakeholders to ensure functional parity and identify areas for modernisation or optimisation. Contribute to the design and delivery of a hybrid system architecture supporting … AI tools to assist with code analysis and migration. Participate in code reviews, contribute to testing strategies and support comprehensive documentation efforts. What You'll Bring: Experience developing in .NET/C#, particularly in backend and data access layers. Proven success migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL More ❯
Employment Type: Contractor
Rate: £425 - £525 per day
Posted:

2025-0174 L3 App Support for HR and CIS Security NS BELGIUM - 11 JUL RELAUNCH

London, South East, England, United Kingdom
Park Lane Recruitment Ltd
least 4 of them): HTML5, REST Services, Web Services, XML, SQL, Visual Basic for Applications; Application server technologies and Relational data base management systems; programming languages and platforms like .NET, C#, JAVA, JavaScript More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

CRM Developer

Kensington, London, England, United Kingdom
Hybrid / WFH Options
Venn Group
Customise modules, entities, forms, and views to align with business processes and ensure easy to use experience for end users Manage and enhance existing bespoke web (ASP NET) and .NET applications currently integrated with future migration to plugins or PowerApps Utilise web development technologies (HTML, CSS, JavaScript, etc.) to enhance web-based CRM solutions Desired skills and experience: Experience … delivering customer facing digital solutions (Dynamics CRM highly desirable) Strong C# and .Net development skills Proficiency in JavaScript Knowledge and understanding of SQL databases and stored procedures Experience of working with Azure, such as App Service and DevOps Knowledge of utilising SharePoint with low code solutions such as Power Platform Hiring Process: Introductory Teams meeting with Venn Group, to More ❯
Employment Type: Contractor
Rate: £55,497 - £63,045 per annum
Posted:

Software Developer

Central London, London, United Kingdom
Hybrid / WFH Options
VIQU IT Recruitment
Software Developer – Contract – Fully Remote VIQU have partnered with a leading public sector organisation to recruit a .NET/C# Software Developer for a short-term contract. The Role: This Software Developer role will see the successful developer support the ongoing development, customisation, and maintenance of internal web applications and solutions. You will work on .NET web development … focus on pro-code development of web applications, as well as customisations for Power Apps. Key Skills & Experience: Solid commercial experience as a Software Developer, developing web applications using .NET and C# Proficiency building and customising Model-Driven Apps and Canvas Apps (Power Apps experience). Strong working knowledge of SQL and Microsoft Dataverse Experience developing and consuming REST More ❯
Employment Type: Contract, Work From Home
Rate: £300 - 330 per day + Inside IR35
Posted:

Software Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
VIQU Limited
Software Developer – Contract – Fully Remote VIQU have partnered with a leading public sector organisation to recruit a .NET/C# Software Developer for a short-term contract. The Role: This Software Developer role will see the successful developer support the ongoing development, customisation, and maintenance of internal web applications and solutions. You will work on .NET web development … focus on pro-code development of web applications, as well as customisations for Power Apps. Key Skills & Experience: Solid commercial experience as a Software Developer, developing web applications using .NET and C# Proficiency building and customising Model-Driven Apps and Canvas Apps (Power Apps experience). Strong working knowledge of SQL and Microsoft Dataverse Experience developing and consuming REST More ❯
Employment Type: Contractor
Rate: £300 - £330 per day
Posted:

Test Automation Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Pontoon
**Test Automation Engineer** (Contract) Duration: Up until 31 March 2026 (Possibility for extension) Location: London/Hybrid (3 days on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates About the Role We are launching a More ❯
Employment Type: Contractor
Rate: £600 - £650 per day
Posted:

Test Automation Engineer

London, United Kingdom
Hybrid / WFH Options
Pontoon
**Test Automation Engineer** (Contract) Duration: Up until 31 March 2026 (Possibility for extension) Location: London/Hybrid (3 days on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates About the Role We are launching a More ❯
Employment Type: Contract
Rate: £600 - £650/day
Posted:

Power Platform Developer

London, United Kingdom
Computappoint
change management protocols Provide expert guidance across multiple technology platforms WHAT WE RE LOOKING FOR ESSENTIAL EXPERIENCE: Strong Power Platform development experience with comprehensive knowledge of the ecosystem C# .NET and JavaScript expertise for custom development and integrations HCL Notes/Lotus Notes experience - additional Legacy system capabilities Canvas and Model-driven Power Apps knowledge - full low-code understanding More ❯
Employment Type: Contract
Rate: GBP 400 Daily
Posted:

Power Platform Developer

East London, London, England, United Kingdom
Computappoint
change management protocols Provide expert guidance across multiple technology platforms WHAT WE'RE LOOKING FOR ESSENTIAL EXPERIENCE: Strong Power Platform development experience with comprehensive knowledge of the ecosystem C# .NET and JavaScript expertise for custom development and integrations HCL Notes/Lotus Notes experience - additional legacy system capabilities Canvas and Model-driven Power Apps knowledge - full low-code understanding More ❯
Employment Type: Contractor
Rate: Competitive salary
Posted:

C#.Net Developer (WPF)

London, United Kingdom
Qualserv Consulting Limited
minimum of 3 days in the East London office, 2 days remote To be considered for the role you will require the following: At least 8+ years' experience of .NET C# development experience WPF development skills are essential Good knowledge of T-SQL, PL/SQL and/or MS SQL Server Extensive experience of Windows application development Understanding … of MS .NET Framework environments. Understanding of Object Oriented programming Flexibility in technical environments and task involvement A banking/financial services background would be a big plus NB: Due to the high volume of responses only applicants who meet the specific requirements will be contacted. PL/SQL, c#, c sharp, .net, studio, VBA, WPF, windows More ❯
Employment Type: Contract
Rate: GBP 370 - 400 Daily
Posted:

C#.Net Developer (WPF)

E14, Canary Wharf, Greater London, United Kingdom
Qualserv Consulting Limited
minimum of 3 days in the East London office, 2 days remote To be considered for the role you will require the following: At least 8+ years' experience of .NET C# development experience WPF development skills are essential Good knowledge of T-SQL, PL/SQL and/or MS SQL Server Extensive experience of Windows application development Understanding … of MS .NET Framework environments. Understanding of Object Oriented programming Flexibility in technical environments and task involvement A banking/financial services background would be a big plus NB: Due to the high volume of responses only applicants who meet the specific requirements will be contacted. Keywords: developer, programmer, engineer, analyst, a/p, consultant, lead, leader, SQL, server … oracle. PL/SQL, c#, c sharp, .net, studio, VBA, WPF, windows More ❯
Employment Type: Contract, Temporary
Salary: £370 - £400/day
Posted:

.Net Developer

South East London, London, United Kingdom
Hybrid / WFH Options
Experis
Job Opportunity: Application Developer - Microsoft .NET Location: Remote - Potential of 1 Onsite meeting P/Week in London Start Date: 4th August 2025 End Date: 6th March 2026 Rate: Up to £460/day - Inside IR35 - UMB About the Role We're looking for a talented and experienced Application Developer with strong Microsoft .NET skills to join our … a fantastic opportunity to work on modern, cloud-based applications in a mostly remote setup, with a collaborative and forward-thinking team. Key Responsibilities Develop and maintain applications using .NET 8 or above Collaborate with designers and stakeholders to bring user interfaces to life Participate in code reviews, testing, and deployment processes Ensure accessibility and performance standards are met … Essential Skills .NET 8+ - hands-on experience is a must Experience with Blazor for building interactive web UIs Nice to Have Experience converting Figma wireframes to web pages using Tailwind CSS Understanding of WCAG 2.1 AA accessibility standards Exposure to Cloud Migration and Modernisation Familiarity with AWS services Proficiency in SQL Why Join Us? Work on cutting-edge tech More ❯
Employment Type: Contract
Rate: Up to £460 per day
Posted:

Power Apps Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Morgan Law
Integra (finance), Axiom (budget management), Northgate/Zellis (HR and payroll) or similar finance/HR systems via REST or OData APIs Proficient in Power Fx, JavaScript/TypeScript, .NET C#, T-SQL, DAX and JSON Experience with Azure Functions, Logic Apps, Service Bus, API Management and DevOps pipelines More ❯
Employment Type: Contractor
Rate: £550 - £650 per day
Posted:

Senior Oracle Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Morgan McKinley
Senior Oracle Developer Oracle to .NET (C#) Migration Project Join a high-impact digital transformation project modernising a long-standing enterprise system. Migrating a complex platform from Oracle and PHP to a .NET (C#) architecture and we're looking for an experienced Oracle Developer to play a key role in this journey. You'll work at the intersection …/SQL logic into performant, readable C# code. Decoupling business logic from the Oracle database and transforming it into service-based architecture. Mapping Oracle data structures and types into .NET equivalents, ensuring performance and integrity. Collaborating on the migration from Oracle to Postgres or MySQL. Supporting a hybrid environment during rollout, where legacy Oracle systems and new .NET … What We're Looking For: Oracle PL/SQL experience, including deep expertise in stored procedures, triggers and packages. Proven experience re-engineering Oracle-based logic into C# within .NET environments. Strong understanding of Oracle database internals and data migration approaches. Experience in database migration from Oracle to Postgres or MySQL. Excellent analytical and problem-solving skills, with strong More ❯
Employment Type: Contractor
Rate: £450 - £550 per day
Posted:

Technical Project Manager SDLC, .NET - Software Solution

London, South East, England, United Kingdom
Hybrid / WFH Options
Salt Search
Technical Project Manager (SDLC, .NET Desktop application) - Software Solution - Remote Day rate: £300 - £400 (inside IR35) Duration: 2 initially Start: ASAP Location: UK/Europe We are looking for a Mid-Level Project Manager to oversee software development projects with a focus on .NET desktop application development. The ideal candidate will have solid experience managing technical teams and … ceremonies. Monitor project scope, schedules, and deliverables, ensuring alignment with business objectives. Track and communicate project progress, risks, and issues to stakeholders. Support and understand the development process for .NET desktop applications , providing context and clarity to both technical and non-technical team members. Requirements: 3-5 years of experience in project management, preferably in software development environments. Strong … understanding of .NET desktop application development and how it fits within project timelines and resource planning. Proficient with Agile/SCRUM practices and tools (e.g., Jira, Azure DevOps, Trello). Solid grasp of the Software Development Lifecycle (SDLC) and project tracking methods. Excellent organizational, communication, and leadership skills. Ability to manage multiple priorities and work with cross-functional remote More ❯
Employment Type: Contractor
Rate: £300 - £400 per day
Posted:

.Net/C# Developer needed! - Inside IR35 - 6 Month Contract

London, South East, England, United Kingdom
Opus Recruitment Solutions Ltd
A client of mine is currently on the hunt for a .net/C# developer to join them on a contract basis. Very exciting End User & I have current contractors that have been on the project for 5 years! JOB DETAILS C#/.NET WEB API & WEB FORMS AZURE FUNCTIONS SQL ANGULAR/BLAZER INSIDE IR35 £400 DAY More ❯
Employment Type: Contractor
Rate: £400 per day
Posted:

Net Developer

London, United Kingdom
Hybrid / WFH Options
Experis
Job Opportunity: Application Developer - Microsoft .NET Location: Remote - Potential of 1 Onsite meeting P/Week in London Start Date: 4th August 2025 End Date: 6th March 2026 Rate: Up to £460/day - Inside IR35 - UMB About the Role We're looking for a talented and experienced Application Developer with strong Microsoft .NET skills to join our … a fantastic opportunity to work on modern, cloud-based applications in a mostly remote setup, with a collaborative and forward-thinking team. Key Responsibilities Develop and maintain applications using .NET 8 or above Collaborate with designers and stakeholders to bring user interfaces to life Participate in code reviews, testing, and deployment processes Ensure accessibility and performance standards are met … Essential Skills .NET 8+ - hands-on experience is a must Experience with Blazor for building interactive web UIs Nice to Have Experience converting Figma wireframes to web pages using Tailwind CSS Understanding of WCAG 2.1 AA accessibility standards Exposure to Cloud Migration and Modernisation Familiarity with AWS services Proficiency in SQL Why Join Us? Work on cutting-edge tech More ❯
Employment Type: Contract
Rate: £460/day
Posted:

Developer / Analyst

London, Tower, United Kingdom
Deerfoot Recruitment Solutions Limited
.net Developer MiFIR/EMIR regulatory reporting C# SQL Server T-SQL Kafka React.js 6-monthly rolling contract £550 - £650 p/d outside IR35 Central London (Tower Hill tube) 4 days in the office/1 day from home As an established tech recruitment partner to a global organisation, we are seeking a .net Developer with experience … to work on new dev, you will be working on a variety of apps. This is a 6-month rolling assignment. Key Skills: C# Regulatory reporting (MiFIR/EMIR).net Visual Studio SQL Server T-SQL Kafka React.js Front-office/back-office trading applications: Fidessa, TT, CQG. GMI, ETDs, CFDs, fixed income, FX, trade lifecycle Key Responsibilities: Collaborate More ❯
Employment Type: Contract
Rate: £550 - £650/day outside IR35
Posted:

Integration Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Salt Search
Senior .NET Developer - Public Sector Project | £220/day (Inside IR35) Location: Predominantly remote, with occasional travel to Cardiff Contract: 6 months (with likely extension) Rate: £220 per day (Inside IR35, A4C Band 6 equivalent) Start Date: ASAP We're recruiting for a Senior Software Integration Developer (.NET) to join a high-impact digital programme delivering national clinical … Agile team developing features for the Welsh Nursing Care Record (WNCR) and related applications-supporting the delivery of modern, tech-enabled healthcare. Key Responsibilities: Develop software components using the .NET stack (C#), working across UI, API, messaging, and integrations. Collaborate with Business Analysts, Product Specialists, and other developers within a well-structured Scrum team. Mentor junior developers and contribute More ❯
Employment Type: Contractor
Rate: £220 per day
Posted:

C# / WPF / WCF / Winform Developer

London, United Kingdom
GCS
liaise with other application support team staff. Following the existing team programming policy to keep a common development style to be shared in team members. Updating versions of MS .Net Framework and MS Visual .NET platform to include any necessary changes of existing systems running in Production. Liaising with the relevant support teams such as other Development sections More ❯
Employment Type: Contract
Rate: £400 - £415/day inside IR35
Posted:
.NET
London
10th Percentile
£385
25th Percentile
£415
Median
£563
75th Percentile
£738
90th Percentile
£825