26 to 50 of 52 Senior .NET Developer Jobs in the UK excluding London

Senior .Net Developer

Hiring Organisation
Ronald James
Location
Newcastle upon Tyne, UK
Employment Type
Full-time
Role: We're looking for a Senior .Net Developer to help design, build, and maintain high-quality software solutions. You'll be involved across the full development lifecycle, from planning and architecture through to deployment and ongoing maintenance. This role gives you the chance to work … technical decisions, and collaborate closely with engineers, product, and QA teams to deliver scalable and reliable systems. Key Responsibilities: Develop and maintain applications using .NET and C#Build and support APIs and backend servicesContribute to technical design and architecture discussionsWrite clean, maintainable, and well-tested codeReview code and support best ...

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-up with solid financial … contribution 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 .NET Developer - Data & Product Analytics (Health Insurance Platform)

Hiring Organisation
Cegedim
Location
Bristol, UK
Employment Type
Full-time
automation, Open API and integration suite and Digital solutions serving customers and all parties in the insurance value chain. Currently looking to recruit a Senior .NET Developer in data and product analytics. Hybrid working roleThe role will combine hands-on feature development in the core stack with … health insurers, while also owning the end‐to‐end data pipeline and analytics tooling that underpins product KPIs and user behaviour insights. Product Development (.NET/Angular/APIs)Design, develop, and maintain features across our policy and claims management product using:.NET (C#), ASP.NET CoreAngularSQL Server ...

Senior .NET Developer — Azure Microservices & Web Platform (York)

Location
York and North Yorkshire, England, United Kingdom
Searchability in York is seeking a Senior .NET Developer to help migrate our Windows Forms-based client to a web-based platform within a microservices architecture. The role requires strong command of C# and the .NET Core stack, and collaboration with product owners and our application ...

Senior Software Developer (.NET)

Hiring Organisation
Yolk Recruitment Limited
Location
Cardiff, South Glamorgan, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 Annual
Software Developer (.Net) £57,000 Bridgend - Hybrid Benefits: 15% & 9 day fortnight Overview Are you an experienced developer who wants to shape a new digital function from the ground up? We're looking for a Senior Software Developer to help design and deliver modern services ...

Senior Developer (JavaScript, ASP.NET MVC)

Location
Belfast, Northern Ireland, United Kingdom
critical role in supporting chemotherapy treatment management nationwide, and we are continuing to invest in its safety, quality, and long-term evolution. The Senior Developer role sits within the CIS Oncology product suite (ChemoCare), which supports the management of chemotherapy treatment across the NHS. ChemoCare is a market … with a forward looking programme of work to ensure it continues to provide safe, effective, and valued support to NHS customers. This is a senior individual contributor role, intended for an experienced developer who enjoys hands on work. The role supports reliable delivery, good engineering practice, and ownership ...

Senior Back-End Developer - .NET / C# -High Growth SaaS

Hiring Organisation
Robert Half
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior Back-End Developer - .NET/C# Are you looking for a new challenge? Looking for autonomy and a seat at the table? London | Hybrid | Fintech The Role A fast-growing fintech is building a new in-house engineering team and is looking for a Senior Back-End Developer to become a key technical hire. You'll take ownership of a modern platform built with C#/.NET microservices, PostgreSQL, Redis and Google Cloud, helping shape architecture, engineering standards and future development. Key Responsibilities Build and maintain C#/.NET microservices Design ...

Senior .NET Backend Developer

Location
York and North Yorkshire, England, United Kingdom
Optix is modernising a large, established Windows desktop platform into a modern web product. We are looking for a senior .NET backend developer with deep engineering experience, strong architectural judgement and a practical approach to modern development tools. This is a hands-on role with significant responsibility … backend architecture and delivery. You will design .NET services and APIs, turn complex legacy behaviour into maintainable solutions, and help improve engineering practices across the team. What you'll be doing Design and implement complex backend functionality using C# and modern .NET/ASP.NET Core. Make and communicate ...

Senior .NET Developer - Remote, Azure & Full-Stack

Location
Epsom, England, United Kingdom
Join a dynamic and innovative company that specializes in video technology and social media advertising. As a .NET Developer, you'll work on cutting-edge web-based software applications, utilizing a robust tech stack that includes .NET, Azure, and Angular. This role offers not only the chance ...

Senior .NET Developer – Hybrid Enterprise SaaS Platform

Location
Metropolitan Borough of Solihull, England, United Kingdom
Pinewood.AI is seeking an experienced Senior Developer to join our Solihull team, helping design and deliver the Automotive Intelligence Platform. You will work closely with Lead Developers, Product, and QA to implement robust features and integrations across the full .NET stack. You will stay hands-on, contribute ...

Senior .NET Developer for Oncology Care Platform

Location
Belfast, Northern Ireland, United Kingdom
慨正橡扯 based in Belfast is seeking a Senior Developer to join their CIS Oncology (ChemoCare) team to design and develop software that supports chemotherapy treatment management across the NHS. This role requires a strong professional background in C# and ASP.NET MVC, along with experience in SQL Server ...

Senior SolidWorks Developer (.NET / C# ) & AEC Applications

Location
Dartford, England, United Kingdom
Senior Software Developer – SolidWorks & AEC Applications Location: Dartford Laing O'Rourke is at the forefront of construction innovation, shaping the future of the industry through advanced technology, automation, and modern methods of construction. Our Technology & Innovation team is central to this transformation—developing smarter, more efficient ways … design and deliver complex projects. We are looking for an experienced Software Developer with strong expertise in C#, .NET, and CAD automation to build and enhance engineering tools, particularly within SolidWorks and AEC applications. This role focuses on improving engineering workflows, automating design processes, and building scalable, maintainable ...

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-up with solid financial ...

Senior Full Stack Developer - .NET / React

Location
Glasgow, Scotland, United Kingdom
Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business … spending 2 days a week connecting with the team in either our Glasgow or Dundee office. Shape the Future of Digital Transformation As a Senior Full-Stack Developer at Waracle, you will do so much more than just write code; you will be a key influencer, creator ...

Senior .Net Developer (Blue Prism)

Location
Hatfield, England, United Kingdom
mission to “treat core digital platform and services as code, automate everything, drive towards zero business impacting incidents and embrace service management.” The Senior Analyst Programmer role focuses on the analysis, support, maintenance, and development of company-wide web applications while adhering to structured best practices. This position encompasses … with Blue Prism Control Room operations, monitoring, scheduling, and queue management. Strong knowledge and practical exposure (4+ years) to C#, MVC (v5 or newer) .NET Core (.NET 6 or newer) and Blazor frontend. Proficiency in web development technologies such as JQuery, JSON, XML, HTML5, CSS3, and Bootstrap. Experience ...

Senior C#/.net Developer

Hiring Organisation
Nanotek
Location
Manchester, UK
Employment Type
Full-time
Developing, and 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 … 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 ...

Senior C#.Net Developer

Hiring Organisation
Catchfish
Location
Camberley, Surrey, UK
Employment Type
Full-time
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 on a variety … 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 ...

Senior .NET/C# Developer - Remote & SC Clearance

Location
Godalming, England, United Kingdom
Triad Group Plc is seeking a Senior C# Developer to design, develop and maintain .NET Core applications, working across client sites or remotely, with options to base in Godalming or Milton Keynes. The role requires SC clearance eligibility and offers a pathway to secure government-scale projects. ...

Senior .NET MVC Developer – Legacy Apps (Hybrid)

Location
Birmingham, England, United Kingdom
Third Nexus Group Limited in Birmingham is seeking a Senior Application Developer to maintain and enhance enterprise applications built on ASP.NET MVC, .NET Framework, Razor Pages and SQL Server. The role is hybrid, with a fixed-term contract up to £85,000 per year, focusing on legacy ...

Senior .Net Developer

Hiring Organisation
YourCode Recruitment
Location
Wakefield, West Yorkshire, UK
Employment Type
Full-time
continued professional development through a dedicated training budget and ongoing technical support. Key ResponsibilitiesDevelop and maintain scalable, high-quality software applications using C#, .NET, and React. Work across ecommerce and integration systems to support business-wide digital initiatives. Collaborate with engineers, designers, and product teams to deliver efficient, modern … solutions. Participate in architectural discussions and contribute to continuous improvement. Tech Stack & SkillsEssential: Strong experience with C#, .NET, React, and JavaScript. Proficiency with Razor Pages, HTML, relational databases, and MicroServices. Understanding of OOP, REST, JSON, WebAPI, and authentication servers. Experience working with GIT and message/event bus systems. ...

Senior .NET Developer — ROAM Platform

Location
Stansted Mountfitchet, England, United Kingdom
GAMIT Limited, based near Stansted Airport, is looking for a Senior Developer. In this role, you will lead the development of robust software solutions using C# and .NET technologies while mentoring junior developers. Your contributions will help maintain high-quality standards and improve the ROAM platform. The position ...

Senior .NET Developer for Enterprise Automotive SaaS

Location
Metropolitan Borough of Solihull, England, United Kingdom
join our software teams. You will work with Lead Developers and multi-disciplinary teams to deliver and evolve our Automotive Intelligence Platform. As a senior team member, you will design, develop, and ship scalable features, integrate with third‐party systems, and uphold engineering standards across the full software lifecycle. ...

Senior Full .NET Core Developer

Hiring Organisation
Catchfish
Location
Guildford, Surrey, UK
Employment Type
Full-time
Full stack .NET Core DeveloperWe can offer you a chance to:use the latest Microsoft Technologies (including ASP.NET Core, .NET core) and modern javascript frameworks like Angular, React and VueDevelop interesting projects which are taking the international travel industry by stormA long list of excellent benefits such … private medical care and much moreIf you would like to find out more please applyRequired experienceC#ASP.NET or .NET Core or ASP.NET Core experienceAPI developmentFront end development experience, preferably with a modern javascript framework like Angular or React or vue or other (older javascript framework experience may be considered ...

Senior ASP.NET MVC Developer - Legacy Apps (Hybrid)

Location
Birmingham, England, United Kingdom
Falcon Smart IT in Birmingham is seeking a Senior Application Developer to maintain and enhance legacy .NET Framework applications, including ASP.NET MVC, Razor Pages, and SQL Server. The role requires collaboration across UI, business, and data-access layers, with a focus on defect analysis and minor enhancements. ...

Senior ASP.NET MVC Developer — Legacy Apps (Hybrid)

Location
Birmingham, England, United Kingdom
Falcon Smart IT Limited in Birmingham, UK, seeks a Senior Application Developer to maintain and enhance enterprise apps built on ASP.NET MVC, .NET Framework, Razor Pages, and SQL Server. You will engage across the full development lifecycle, address technical debt, and coordinate with infrastructure and business teams … hybrid setup. The role requires strong legacy .NET experience, front-end skills (jQuery, Razor Pages), and agile methods familiarity. #J-18808-Ljbffr ...