1 to 25 of 32 C# .NET Developer Jobs in the UK excluding London

Full Stack .NET Developer (C#, ASP.NET Core)

Hiring Organisation
Partnerscale
Location
Bicester, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
Full Stack .NET Developer (C#, ASP.NET Core) Oxfordshire/Hybrid (1 day per week in office) Easily commutable from Oxford, Milton Keynes, Birmingham and London (direct rail) £40,000 to £50,000 plus great benefits. How often do you get to rewrite a whole product … over the next few years, and this role sits right in the middle of that work. You will be building the new product in C# and ASP.NET Core: real greenfield code on one side, a live system with real users on the other, and the job of moving ...

Senior C# Developer .Net Core - FinTech

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne and Wear, United Kingdom
Salary
£ 100 K
Senior C# Developer/Backend Software Engineer (C# .Net Core) *Newcastle onsite* to 110k+Are you a senior, backend focused C# Developer with a strong academic background You could be working on complex, high impact systems at a growing FinTech scale … healthcareGenerous pension contributionContinuous career development opportunitiesSocial team atmosphere with a range of events and early finish for drinks on FridaysYour role:As a Senior C# Developer you will collaborate with a small, talented team to deliver the core platform using the latest versions of C# .Net ...

Senior C# Developer .Net Core - FinTech

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
Senior C# Developer/Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £110k+ Are you a senior, backend focused C# Developer with a strong academic background? You could be working on complex, high impact systems at a growing FinTech scale … Continuous career development opportunities Social team atmosphere with a range of events and early finish for drinks on Fridays Your role: As a Senior C# Developer you will collaborate with a small, talented team to deliver the core platform using the latest versions of C# .Net ...

Senior C# Developer .Net - FinTech

Hiring Organisation
Client Server
Location
Reigate, Surrey, United Kingdom
Salary
£ 80 K
Senior C# Developer/Engineer (C# .Net Desktop Application) Reigate/WFH to 90kDo you have expertise with C# desktop development, working on complex scalable systems You could be progressing your career, in a senior, hands-on leadership role working on complex … technically challenging systems with continual learning opportunities a global Fintech.As a Senior C# Developer you'll join an Agile team responsible for the flagship desktop insurance platform that handles 4 billion requests per month. You'll play a key role in architecting, designing and developing new features ...

Lead C# Developer .Net Core - Fintech

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne and Wear, United Kingdom
Salary
£ 120 K
Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to 150kDo you have expertise with backend C# combined with strong technical leadership skills You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence … North East.As a Lead C# Developer/Backend Software Engineer you'll design and implement the logic behind core applications, build APIs and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable server environments.You'll work ...

C# Developer Full Stack.Net Agentic AI

Hiring Organisation
Client Server
Location
Reigate, Surrey, United Kingdom
Salary
£ 80 K
C# Developer/Full Stack Engineer (C# .Net Agentic AI) Reigate/WFH to 95kAre you a technologist C# Developer with an AI first mindset and full stack development skills You could be progressing your career in a senior, hands … your birthday off)Pension, Health Care and Life AssuranceTraining and career developmentSocial events and a range of other perks Your role:As a C# Developer you'll design, develop and enhance modern SaaS applications, working closely with Product Owners to shape new features from concept through ...

C# Developer Full Stack.Net Agentic AI

Hiring Organisation
Client Server
Location
Reigate, Surrey, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
C# Developer/Full Stack Engineer (C# .Net Agentic AI) Reigate/WFH to £95k Are you a technologist C# Developer with an AI first mindset and full stack development skills? You could be progressing your career in a senior, hands … birthday off) Pension, Health Care and Life Assurance Training and career development Social events and a range of other perks Your role: As a C# Developer you'll design, develop and enhance modern SaaS applications, working closely with Product Owners to shape new features from concept through ...

AI Engineer / Software Developer, C# .NET, Reading, £450 day rate, Outside IR35, COR7631

Hiring Organisation
Corriculo Ltd
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£400 - £450 per day
Engineer/Software Developer, C# .NET, Reading, £450 day rate, Outside IR35, COR7631 We're looking for an experienced AI Engineer/Software Developer to join a long-term contract with an initial 3-month term and a strong likelihood of extension … rate of up to £450, outside IR35. As an AI Engineer/Software Developer, you'll be responsible for developing software using C# and .NET while leveraging AI-powered tools throughout the software development lifecycle. You'll be someone who naturally incorporates AI into ...

Software Developer – C# / .NET / WinForms

Hiring Organisation
Sustain Recruit
Location
Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
Software DeveloperC#/.NET/WinForms Hertfordshire/Hybrid Permanent | 37.5 hours per week Build technology that makes a real difference We’re working with an established technology-for-good organisation that develops specialist software designed to help protect vulnerable people and support professionals … join their talented development team and work on products that have a genuine real-world impact. This would suit a junior to mid-level C# developer who enjoys building Windows applications, solving technical problems and wants to work somewhere where the software they create has a meaningful ...

.NET Developer, C#, React, Hybrid

Hiring Organisation
Sanderson
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
.NET Developer (C#/React) Location: Cambridgeshire- Hybrid ( 3 days a week onsite) Day rate: Up to £550 a day (Inside IR35) Contract: Initial 6 Months- Likely extensions We're working with a leading organisation that is investing heavily in the development and enhancement … teams and key stakeholders to deliver high-quality technical solutions within a fast-paced Agile environment. Key Responsibilities Design, develop and maintain applications using C# and .NET technologies Build modern, responsive user interfaces using React Develop and integrate RESTful APIs and backend services Work with databases ...

Software Developer C# .Net - Quant Trading

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne and Wear, United Kingdom
Salary
£ 100 K
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 … 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 ...

Software Developer C# .Net - Quant Trading

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
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 … 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 ...

Principal C# .Net Developer

Hiring Organisation
The Portfolio Group
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£80000/annum
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 … 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. ...

Senior C# Developer .Net Core - FinTech

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne And Wear, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Senior C# Developer/Backend Software Engineer (C# .Net Core) Newcastle onsite to £110k+ Are you a senior, backend focused C# Developer with a strong academic background? You could be working on complex, high impact systems at a growing FinTech scale ...

Senior C# Developer .Net Core - FinTech

Hiring Organisation
Client Server
Location
Newcastle upon Tyne, UK
Employment Type
Full-time
Senior C# Developer/Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £110k+ Are you a senior, backend focused C# Developer with a strong academic background? You could be working on complex, high impact systems at a growing FinTech scale ...

C# / .NET Developer

Hiring Organisation
Avanti
Location
Aberdeen, Aberdeenshire, Scotland, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £65,000 per annum
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. … 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 ...

C# Developer Full Stack.Net Agentic AI

Hiring Organisation
Client Server
Location
Reigate, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
C# Developer/Full Stack Engineer (C# .Net Agentic AI) Reigate/WFH to £95k Are you a technologist C# Developer with an AI first mindset and full stack development skills? You could be progressing your career in a senior, hands ...

Software Developer C# .NET

Hiring Organisation
Major Recruitment
Location
Chesterfield, Derbyshire, East Midlands, United Kingdom
Employment Type
Permanent
Salary
£55,000
Software Developer Chesterfield | £50k+ React | C#.NET v10 | SignalR | Claude Major IT & Digital are proud to be partnering with a leading international business with over 30 years industry experience delivering industrial IT solutions across both manufacturing, energy and utility sectors . Successfully achieved Investors in People award … business from a Chesterfield location. As part of continued expansion within the software development team my client has immediate requirements for an experienced C# .NET (v.10) Developer with strong React (v.19) skills to support the development of new features, new applications and API integrations. This ...

C# / .NET Core / MVC / ASP.NET Developer

Hiring Organisation
Crystal Ball Ltd
Location
Manchester, Trafford Park, United Kingdom
Employment Type
Contract
Contract Rate
£45000/annum
C#/.NET Core/MVC/ASP.NET Developer – Contractor Location: Office Based, Manchester, M32 0FP Hours: Full Time – 6 Month Contract Salary: £45,000 per annum pro rata Crystal Ball is a Multi-Award-Winning vehicle tracking and lone worker service provider based … entire UK. The Crystal Ball system comprises of mobile phone/tablet client software (all major platforms) as well as scalable server-side architecture (C#/.NET Core/MVC/ASP.Net/SQL Server) and is developed and maintained entirely in-house and we are looking ...

Principal Software Developer, AI Integration, C# .NET, Reading, £550 day rate, Outside IR35, COR7630

Hiring Organisation
Corriculo Ltd
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£500 - £550 per day
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 ...

Senior C#/.net Developer

Hiring Organisation
Nanotek
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 55 K
maintaining Optimizely centric based solutions as well as bespoke solutions written using .NET.Implementing Optimizely (and associated technologies) and bespoke software solutions using .NET Core/.NET Framework, C#12 and ASP.NET Core.Collaborating effectively with QA, BA, PM, DevOps and other members of the wider Engineering and agency … evolved as practices mature.Ensure that the technical objectives of the Optimizely Engineering team are met - ensuring that our reputation for Optimizely and .NET technical excellence is maintained and excelled.Candidate Criteria:Good Optimizely CMS development expertise using versions 11 and 12; alternatively highly experienced using Umbraco CMS.Good knowledge ...

Graduate C#.Net Developer x 2 - Jump IT Solutions

Hiring Organisation
Jump IT Recruitment Solutions
Location
Kent
Employment Type
Permanent
Salary
£25,000 - £40,000 + Benefits + Potential
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 ...

Software Developer - Manchester (.net/C#)

Hiring Organisation
Nanotek
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 45 K
LtdLocation: ManchesterSalary: 40,000 to 50,000Sector: I.T.Job Type: PermanentWork Hours: Full TimeContact: Jim WalshEmail: careers@nanotekltd.co.ukApply for this job nowJob DescriptionEssential skills include C#, T-SQL, ASP.Net, WCF and HTML5/CSS3 with at least 5 year’s commercial experience. Desirables include ASP.MVC, Telerik Kendo UI or other … director to improve the overall design and architecture of the company products, and also provide mentoring to other members of the team.Essential skills include C#, T-SQL, ASP.Net, WCF and HTML5/CSS3 with at least 5 year’s commercial experience. Desirables include ASP.MVC, Telerik Kendo UI or other ...

Senior C#.Net Developer

Hiring Organisation
Catchfish
Location
Camberley, Surrey, United Kingdom
Salary
£ 50 K
Senior C# Developer - up to 55 000Due to the growing success, despite recent difficulties, this multinational C# software development specialist company is now looking for a new addition to their team.You will be directly involved with developing complex software systems working with different teams … applications, which are customisable to ensure maximum efficiency.You will have the opportunity to work with the latest Microsoft stack, including Azure and .NET Core within a microservices architecture. Also, ground breaking Javascript frameworks such as Angular and React.Required experienceC# (minimum of 7 years commercial experience).NET ...

C# ASP.NET Core Developer

Hiring Organisation
Catchfish
Location
Orpington, Kent, United Kingdom
Salary
£ 50 K
C# ASP.NET Core DeveloperLooking for your next challenge Working with C# ASP.NET Core, Azure and Angular within a microservices architecture you will help to create the next iteration of software applications which is changing the international travel industry as we speak. Required experienceC#ASP.NET CoreAPI developmentAngularTypescript, JavaScript, HTML ...