26 to 50 of 51 C# Developer Jobs in the UK

Software Developer/Engineer (C# .Net) Newcastle onsite to £120k+ Join a highly regarded Financial Technology Consultancy developing sophisticated software used by Investment Banks, Hedge Funds and Asset Managers. This is an opportunity to work at the intersection of software engineering, quantitative finance and large scale distributed … workflows. Collaborating with quantitative researchers and financial specialists, you'll tackle challenging technical problems involving scalability, performance, data processing and system design, using modern C# and SQL technologies. Location/WFH: You'll join colleagues in Central Newcastle offices on a full-time basis (Monday to Friday), working hours ...

Lead Software Developer/Engineer (C# .Net Core) Newcastle onsite to £130k Do you have expertise with backend software development within finance/trading environments, combined with strong leadership skills? You could be progressing your career in a hands-on Lead Software Developer …/team leadership skills, happy conducting 1-2-1s, providing coaching and mentoring as well as project leadership You have expertise with modern C# .Net Core, Python skills would also be of benefit (will also consider other OO languages e.g. C++, Java) You have a strong knowledge ...

client, a well-established electronics manufacturing and product development organisation, are looking for a Software Developer - C# based in Newbury to join their team on a permanent basis. This is a fast-paced, hands-on role within a growing innovation division, focused on delivering software-led product ...

Principal Backend Developer (C#/.NET) The Opportunity This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You'll be joining a company that's scaling rapidly, building innovative products that … proof. Working closely with product owners, testers, and front-end teams, you'll bring engineering excellence into every decision. With a stack centred on C#, .NET, cloud services, and automation frameworks, you'll be both hands-on in coding and guiding others to deliver their best work. ...

Title: Senior C# .NET Developer Location: Bromley & London - Hybrid ( 3 days in office is essential) Contract: 12 months with possible extension for one more year. Rate: Highly competitive Status : Inside IR35 Working pattern: Full time Overview We are seeking an experienced C# .NET Developer … contribute to business-critical systems while working in a collaborative and supportive environment. Key Responsibilities Design, develop, enhance, and maintain enterprise applications using C# and .NET technologies. Support and improve existing business-critical systems, ensuring stability, performance, and scalability. Work closely with business users, analysts, and technical teams ...

C#/.NET Developer Salary: £40,000 to £65,000, depending on experience Location: Aberdeen, ideally hybrid, with flexibility depending on the candidate’s location Permanent We are recruiting for a global software business that develops real-time data platforms for the energy industry. The company builds … product development and improvements to established software platforms. The role You will be responsible for: Developing and maintaining backend applications using C# and .NET Designing and supporting APIs and integration services Working with SQL Server or PostgreSQL Building event-driven and message-based systems Writing clean, maintainable and well ...

identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: C# .NET Developer Location: Bromley - Hybrid ( 3 days in office is essential) Contract: 12 months with possible extension for one more year. Rate … inside umbrella. Overview We are seeking an experienced C# .NET Developer to develop, enhance, and support a suite of critical business applications built on modern Microsoft technologies, including .NET 6 and .NET 8. The successful candidate will work within a globally distributed development team, collaborating with both ...

identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: C# .NET Developer Location: Bromley & London - Hybrid ( 3 days in office is essential) Contract: 12 months with possible extension for one more year. … Rate: £700 - £750 inside umbrella. Overview We are seeking an experienced C# .NET Developer to develop, enhance, and support a suite of critical business applications built on modern Microsoft technologies, including .NET 6 and .NET 8. The successful candidate will work within a globally distributed development team ...

Senior C#/.NET Developer | Risk & Securities Lending Location: London (Hybrid) Contract Duration: 6 Months Industry: Financial Services About the Opportunity Are you a seasoned C# engineer with a deep understanding of financial markets? We are seeking an experienced Senior C#/.NET Developer … will deliver scalable, robust solutions in a fast-paced, regulated environment. What You Will Do System Development: Design, build, and maintain high-performance C#/.NET applications supporting Risk and Securities Lending workflows. API Integration: Build and consume RESTful APIs to seamlessly connect complex upstream and downstream financial systems. ...

Lead Software Developer/Engineer (C# .Net Core) Newcastle onsite to £130k Do you have expertise with backend software development within finance/trading environments, combined with strong leadership skills? You could be progressing your career in a hands-on Lead Software Developer ...

Ascent People Ltd is seeking a Senior C# Developer/Team Leader in the East Midlands for a 6-month contract. The role combines hands-on development with team leadership, focusing on ASP.NET, MVC, C#, WEB API and SQL Server to modernise a desktop solution into ...

Software Developer/Engineer (C# .Net) Newcastle onsite to £120k+ Join a highly regarded Financial Technology Consultancy developing sophisticated software used by Investment Banks, Hedge Funds and Asset Managers. This is an opportunity to work at the intersection of software engineering, quantitative finance and large scale distributed ...

seasoned C# .NET Developer who enjoys solving complex technical challenges? Our client is an established and highly successful technology company whose software is used by thousands of customers. They are investing heavily in their flagship platform and are looking for an experienced Senior Developer … working on software where performance, scalability and reliability really matter. Technical Skills Required You'll have commercial experience with most of the following: C# .NET ASP.NET MVC ASP.NET MongoDB RabbitMQ Web Services (REST and/or SOAP) What We're Looking For Around 10 years' commercial software development experience ...

Principal Software Developer, AI Integration, C#, £550 day rate, Outside IR35, Reading, COR7630 We're looking for an experienced Principal Software Developer to join a long-term contract with an initial 3-month term and a strong likelihood of extension up to 18 months. This … development lifecycle, improving productivity and modernising engineering practices. What's required of the Principal Software Developer? Strong commercial experience developing software with C# and .NET Experience leading or supporting the adoption of AI within a software development team Knowledge of AI-assisted development tools, such as Claude ...

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 ...

About the Role C#.NET, .Net Core, TDD, Entity, MVC, SQL Server, Azure, Cloud, Azure Service Bus, RabbitMQ, Back End, Git, REST APIs. Start 2026 with one of these great new opportunities, based in Kent, UK. ...

Full Stack Web Developer (Angular/React & C#) Location: East Midlands Industry: IT Salary: £375 - £425 per day Posted: 28/01/2019 Contract Full Stack Web Developer job, React, React.js, js, Angular, JavaScript, HTML, HTML5, CSS3, Angular, Typescript, C#, full-stack … JavaScript experts able to hit the ground running to ensure completion of this crucial project. You will also have full-stack knowledge and understand C# .Net as well as other JS frameworks/libraries knowledge. This is an initial 6-month contract with potential to extend dependent ...

seasoned C# .NET Developer who enjoys solving complex technical challenges? Our client is an established and highly successful technology company whose software is used by thousands of customers. They are investing heavily in their flagship platform and are looking for an experienced Senior Developer ...

About the Role C#, .NET, .NET Core, SQL Server, T-SQL, Entity, Azure, App Services, Azure Service Bus, Event-driven architecture, APIs, CI/CD, DevOps. We have 2 great permanent job opportunities to join our client in early 2026. Based in Kent offices, it would really suit someone ...

Role C#.NET, .Net Core, TDD, Entity, MVC, SQL Server, Azure, React, Angular. We have a great opportunity that needs a capable full-stack developer, based in the Tunbridge Wells area of West Kent/East Sussex. As the role is hybrid, you do need to live within commuting … distance of Tunbridge Wells (Kent, East Sussex, West Sussex, Surrey). It is a permanent role only. What We're Looking For A developer/software engineer with 2-3 years+ .NET development experience Someone with full-stack experience, although our client will consider those with ...

Are you ready to take the lead in shaping a business-critical platform within one of the UK's most recognisable and highly respected digital brands? This is a rare opportunity to step into a ...

Manager,assistingwith our bespoke award-winning IT system Evolve and is a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with … improving the efficiency and capabilities of Solus by developing Microsoft stack in an Agile manner. Develop new products and features end to end using C#, .NET, Angular, Entity frameworks, Azure DevOps Build good working relationships across relevant third-party suppliers or partners to maximise business outcomes. Work across ...

Manager,assistingwith our bespoke award-winning IT system Evolve and is a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with … improving the efficiency and capabilities of Solus by developing Microsoft stack in an Agile manner. Develop new products and features end to end using C#, .NET, Angular, Entity frameworks, Azure DevOps Build good working relationships across relevant third-party suppliers or partners to maximise business outcomes. Work across ...

Senior Back End Engineer C#/Java | Front Office Trading | AWS | Distributed Systems Location: London Hybrid: 3 days in the office We're partnering with one of the world's leading financial markets technology firms as they continue investing heavily in their electronic trading platforms. This is an opportunity … architects and principal engineers building business critical trading systems that process high volumes of transactions in real time. Although the team primarily develops in C#, they are very open to experienced Java backend engineers looking to transition into .NET. What you'll be doing Building high performance backend trading ...

business and category leader Cambridge, office-based; £40k - £55k DoE plus benefits This successful firm produce simulation software for engineering. They are seeking a C# WPF UI Developer with strong Windows UI development skills, a focus on productivity and testing, and small company experience. This … their dedicated UI team, and to support your getting up to speed quickly, detailed training materials will be provided. The requirements: Commercial-grade C# and WPF user interface development skills via .NET 6-10, .NET Framework 4.8 or .NET Core Some knowledge of C++ desktop UI, e.g. ...