476 to 500 of 718 C# Jobs in the South East

with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and technical More ❯

with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and technical More ❯

with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and technical More ❯

Are you an experienced C# Software Developer with strong skills in C# and SQL Server? Looking for a new challenge within a global technology leader on the Isle of Wight that values innovation, collaboration, and professional growth? If so, we'd love to hear from you! An exciting opportunity has arisen for an experienced C# Software Developer to join our … based in the Isle of Wight to play a key role in designing, developing, and implementing high-quality, responsive software applications that meet customer needs. Key Responsibilities for the C# Software Developer Collaborate with project managers to deliver high-quality software projects Create and review requirements, functional, and design specifications for complex software solutions Develop, modify, and review code, ensuring … Produce technical estimates and architectural input for proposals Key Requirements Qualification in Computer Science, Information Technology, or a related field 3+ years' experience full stack development experience in a C# software environment Strong experience developing complex applications using C# and SQL Server Proficient in HTML5, CSS3, JavaScript/TypeScript Experience in creating functional and design specifications Strong understanding of software More ❯

.NET Developer, .NET 9, C# - Digital Download Site - Witney (Tech stack: .NET Developer, .NET 9, C#, Winforms, WPF, iOS, Android, Mobile, Programmer, Full Stack Engineer, Architect, .NET Developer)With operations in over 20 countries our client has fast become a major player within the digital download arena. In addition to an award winning website they have launched mobile apps for … technical team. We are looking for .NET Developer who are ambitious about building a quality service which brings delight to their users. .NET Developer should be experienced in: .NET, C#, Winforms or WPF and Azure SQL. We are keen to hear from candidates with any mobile development experience (iOS or Android). You will be trained in all aspects of More ❯

Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech start-up based in Newcastle, progressing … experience. As a Senior Software Engineer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career. Location: You … backed by A*s and As at A-level You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with modern C# .Net Core, Python skills would also be of benefit You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle You More ❯

Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech start-up based in Newcastle, progressing … experience. As a Senior Software Engineer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career. Location: You … backed by A*s and As at A-level You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with modern C# .Net Core, Python skills would also be of benefit You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle You More ❯

a world-class educational platform, working across the full stack, helping to build, test, and optimise features that are used by millions. Responsibilities: Building and maintaining scalable applications in C#, ASP.NET MVC and JavaScript Work on both front-end and backend functionalities and interactivity Develop educational templates using HTML 5, Canvas API and WebAudio API Optimising performance and ensure reliability … across a global user base Collaborating with an international team – working remotely Tech: C#, ASP.NET MVC, JavaScript, HTML5, CSS, CanvasAPI, SQL Server, WebAudio, Azure and Selenium Essential Skills: Excellent C# and JavaScript skills 3+ years of commercial software development experience Strong understanding of web technologies and best practices Ability to self-organise due to the remote working Passion for quality More ❯

Lead Software Developer/Engineer (C# .Net Azure SaaS) Reigate/WFH to £100k Do you have expertise with C# cloud based development combined with technical/team leadership skills? You could be progressing your career, in a senior, hands-on leadership role working on complex and technically challenging systems with continual learning opportunities a global Fintech. What's in … colleagues in the Reigate office twice a week for team meet-ups and stakeholder meetings with the other three days work from home. About you: You have expertise with C# .Net Core backend software development, having worked on large, scalable systems with complexity You have a strong knowledge of Azure, SaaS, PaaS, microservices You have strong technical and team leadership … Infrastructure as Code (IaC) You're likely to be degree educated in a relevant STEM discipline Apply now to find out more about this Lead Software Developer/Engineer (C# .Net Azure SaaS) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer More ❯

Lead .NET Developer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a .NET Specialist to help drive modernisation, set technical direction, and mentor squads as they scale. This isn’t a “heads down coding … for the future. Expect to spend plenty of time coding, alongside leading migrations and mentoring engineers. What you’ll be doing: Own design + build of complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Influence the technical roadmap across multiple squads Partner with QA … across IIS + AWS Mentor developers through code reviews and architectural guidance Optimise SQL/T-SQL performance for production systems What we’re looking for: Strong background in C# and modern .NET Core Comfortable balancing legacy upkeep with platform modernisation Confident with IIS, AWS, TeamCity, Octopus Deploy, SQL Server Bonus points for exposure to Angular or Telerik libraries Experience More ❯

Lead .NET Developer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a .NET Specialist to help drive modernisation, set technical direction, and mentor squads as they scale. This isn’t a “heads down coding … for the future. Expect to spend plenty of time coding, alongside leading migrations and mentoring engineers. What you’ll be doing: Own design + build of complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Influence the technical roadmap across multiple squads Partner with QA … across IIS + AWS Mentor developers through code reviews and architectural guidance Optimise SQL/T-SQL performance for production systems What we’re looking for: Strong background in C# and modern .NET Core Comfortable balancing legacy upkeep with platform modernisation Confident with IIS, AWS, TeamCity, Octopus Deploy, SQL Server Bonus points for exposure to Angular or Telerik libraries Experience More ❯

Lead .NET Developer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a .NET Specialist to help drive modernisation, set technical direction, and mentor squads as they scale. This isn’t a “heads down coding … for the future. Expect to spend plenty of time coding, alongside leading migrations and mentoring engineers. What you’ll be doing: Own design + build of complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Influence the technical roadmap across multiple squads Partner with QA … across IIS + AWS Mentor developers through code reviews and architectural guidance Optimise SQL/T-SQL performance for production systems What we’re looking for: Strong background in C# and modern .NET Core Comfortable balancing legacy upkeep with platform modernisation Confident with IIS, AWS, TeamCity, Octopus Deploy, SQL Server Bonus points for exposure to Angular or Telerik libraries Experience More ❯

C# Software Engineer – Greenfield Digital Programme Location: Remote- Once a month in Milton Keynes Salary: Up to £60,000 + Excellent Benefits We’re working in partnership with a leading consultancy who are supporting a household brand who work in the financial services space. We’re on the lookout for a talented C# Software Engineer to join a brand-new … work across the full SDLC. What We’re Looking For A strong communicator and a true team player, you'll bring experience in most of the following: Tech Stack C# .NET Core Web API Docker/Kubernetes AWS or Azure Git SQL/NoSQL Ways of Working Agile/Scrum TDD, CI/CD, DevOps SOLID principles RESTful API design More ❯

3D smart-city application. Collaborate with surveyors, architects, and engineers to transform complex data into immersive visualisations and scalable tools . Work with modern technologies such as Unity 2022+, C#, PostgreSQL/PostGIS, Azure DevOps, and Cesium for Unity , delivering solutions that support smarter, more sustainable cities. The Role This position offers the opportunity to design and develop advanced applications … that drive urban innovation. Responsibilities include: Designing and developing backend, desktop, and web applications. Building and maintaining RESTful APIs and microservices. Writing clean, efficient, and scalable code in Unity, C#, JavaScript, and TypeScript. Developing spatial databases and optimised queries using PostgreSQL/PostGIS. Supporting full testing cycles, product upgrades, and change management processes. Collaborating with cross-functional teams to deliver … robust, future-ready solutions. What They’re Looking For Strong Unity development experience, including URP/HDRP pipelines, Addressables, and Job System . Skills in C# (.NET 6/8), Cesium for Unity, PostgreSQL/PostGIS, and Entity Framework Core . Familiarity with modern frontend frameworks such as React with TypeScript . Strong Agile, DevOps, and CI/CD experience. More ❯

3D smart-city application. Collaborate with surveyors, architects, and engineers to transform complex data into immersive visualisations and scalable tools . Work with modern technologies such as Unity 2022+, C#, PostgreSQL/PostGIS, Azure DevOps, and Cesium for Unity , delivering solutions that support smarter, more sustainable cities. The Role This position offers the opportunity to design and develop advanced applications … that drive urban innovation. Responsibilities include: Designing and developing backend, desktop, and web applications. Building and maintaining RESTful APIs and microservices. Writing clean, efficient, and scalable code in Unity, C#, JavaScript, and TypeScript. Developing spatial databases and optimised queries using PostgreSQL/PostGIS. Supporting full testing cycles, product upgrades, and change management processes. Collaborating with cross-functional teams to deliver … robust, future-ready solutions. What They’re Looking For Strong Unity development experience, including URP/HDRP pipelines, Addressables, and Job System . Skills in C# (.NET 6/8), Cesium for Unity, PostgreSQL/PostGIS, and Entity Framework Core . Familiarity with modern frontend frameworks such as React with TypeScript . Strong Agile, DevOps, and CI/CD experience. More ❯

3D smart-city application. Collaborate with surveyors, architects, and engineers to transform complex data into immersive visualisations and scalable tools . Work with modern technologies such as Unity 2022+, C#, PostgreSQL/PostGIS, Azure DevOps, and Cesium for Unity , delivering solutions that support smarter, more sustainable cities. The Role This position offers the opportunity to design and develop advanced applications … that drive urban innovation. Responsibilities include: Designing and developing backend, desktop, and web applications. Building and maintaining RESTful APIs and microservices. Writing clean, efficient, and scalable code in Unity, C#, JavaScript, and TypeScript. Developing spatial databases and optimised queries using PostgreSQL/PostGIS. Supporting full testing cycles, product upgrades, and change management processes. Collaborating with cross-functional teams to deliver … robust, future-ready solutions. What They’re Looking For Strong Unity development experience, including URP/HDRP pipelines, Addressables, and Job System . Skills in C# (.NET 6/8), Cesium for Unity, PostgreSQL/PostGIS, and Entity Framework Core . Familiarity with modern frontend frameworks such as React with TypeScript . Strong Agile, DevOps, and CI/CD experience. More ❯

+ Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing SaaS brand based in Central London who are looking for a talented … and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps Ensure reliability and performance through … testing and CI/CD practices 🔧 About You To be successful, you’ll need: 3+ years’ commercial experience in software engineering Strong skills in C#/.NET Core/.NET 6+ Hands-on experience with AWS (Lambda, ECS, S3, DynamoDB, etc.) Experience working with REST APIs, SQL/NoSQL databases, and microservices Familiarity with CI/CD pipelines (GitHub Actions More ❯

+ Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing SaaS brand based in Central London who are looking for a talented … and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps Ensure reliability and performance through … testing and CI/CD practices 🔧 About You To be successful, you’ll need: 3+ years’ commercial experience in software engineering Strong skills in C#/.NET Core/.NET 6+ Hands-on experience with AWS (Lambda, ECS, S3, DynamoDB, etc.) Experience working with REST APIs, SQL/NoSQL databases, and microservices Familiarity with CI/CD pipelines (GitHub Actions More ❯

thrives in a high-trust, collaborative environment. WHAT YOU WILL DO Develop and maintain back-end services, APIs, and integrations for the Connect platform Write clean, efficient, and testable C# code that performs at scale Contribute to the design and evolution of Connect’s architecture, working closely with architects and senior engineers Collaborate with front-end developers, QA, and product … tests within our CI/CD pipeline Contribute to technical planning, estimation, and documentation Continuously improve our development processes and engineering standards WHAT YOU’LL BRING Strong experience in C# and the .NET ecosystem Experience building scalable, secure applications in Azure (Service Fabric, Cosmos DB, Azure Functions, etc.) Solid understanding of modern back-end architecture – including microservices, APIs, and messaging … able to work well across disciplines Bonus: experience with identity systems (e.g. Microsoft Entra ID/Azure AD), SSO, or HRIS integration OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric, Kubernetes Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape More ❯

thrives in a high-trust, collaborative environment. WHAT YOU WILL DO Develop and maintain back-end services, APIs, and integrations for the Connect platform Write clean, efficient, and testable C# code that performs at scale Contribute to the design and evolution of Connect’s architecture, working closely with architects and senior engineers Collaborate with front-end developers, QA, and product … tests within our CI/CD pipeline Contribute to technical planning, estimation, and documentation Continuously improve our development processes and engineering standards WHAT YOU’LL BRING Strong experience in C# and the .NET ecosystem Experience building scalable, secure applications in Azure (Service Fabric, Cosmos DB, Azure Functions, etc.) Solid understanding of modern back-end architecture – including microservices, APIs, and messaging … able to work well across disciplines Bonus: experience with identity systems (e.g. Microsoft Entra ID/Azure AD), SSO, or HRIS integration OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric, Kubernetes Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape More ❯

thrives in a high-trust, collaborative environment. WHAT YOU WILL DO Develop and maintain back-end services, APIs, and integrations for the Connect platform Write clean, efficient, and testable C# code that performs at scale Contribute to the design and evolution of Connect’s architecture, working closely with architects and senior engineers Collaborate with front-end developers, QA, and product … tests within our CI/CD pipeline Contribute to technical planning, estimation, and documentation Continuously improve our development processes and engineering standards WHAT YOU’LL BRING Strong experience in C# and the .NET ecosystem Experience building scalable, secure applications in Azure (Service Fabric, Cosmos DB, Azure Functions, etc.) Solid understanding of modern back-end architecture – including microservices, APIs, and messaging … able to work well across disciplines Bonus: experience with identity systems (e.g. Microsoft Entra ID/Azure AD), SSO, or HRIS integration OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric, Kubernetes Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape More ❯

rapid growth and are partnering with major clients within their industry. They now have an exciting opportunity for a Software Developer skilled across the Microsoft Tech Stack - .NET Core, C#, ASP.NET, SQL, and Azure. The successful candidate will be working across the whole SDLC from inception through to design, implementation and deployment of their SaaS platform. This role is mostly … onsite so candidates must be willing to travel to Milton Keynes a minimum of four days a week. Experience we're looking for: .NET Framework - C# .NET, .NET Core, ASP.NET Core Entity Framework Core Azure Cloud - Azure DevOps JavaScript RESTful APIs/Web APIs Git Benefits Package Competitive Salary (DOE) Flexi-hours Private healthcare Company car scheme Social events and More ❯

development lifecycle - from design and build through to deployment and optimisation - using the latest Microsoft and web technologies. What you'll be doing Developing robust, high-quality applications using C# and .NET Designing, building, and optimising databases in SQL Server Building responsive web interfaces using Angular , HTML , CSS , and TypeScript Integrating and maintaining Web API services Ensuring security best practices … OWASP) are followed throughout the codebase Continuously learning and adopting new technologies and frameworks What we're looking for Strong commercial experience in C#/.NET development Solid understanding of SQL Server and database performance tuning Front-end experience with Angular and modern JavaScript frameworks Experience building and consuming RESTful APIs Awareness of application security and secure coding practices A More ❯

+ Bonus + Hybrid Location: Central London (Hybrid: one a fortnight onsite) Salary: £95,000–£120,000 + performance bonus + excellent benefits Tech: .NET 8, C#, AWS, Microservices, REST APIs, SQL, CI/CD, Docker/Kubernetes The Opportunity We are partnering with a high-growth SaaS organisation in Central London that is scaling its cloud-based platform and … As a Lead .NET Software Engineer, you will combine hands-on technical expertise with leadership responsibilities, including: Designing and leading the development of scalable backend services using .NET 8 (C#) Architecting cloud-native microservices and distributed systems on AWS Driving engineering standards, best practices, and technical excellence across teams Leading architectural discussions and guiding long-term technical strategy Collaborating with … complex engineering challenges. You’re comfortable taking ownership of architecture and delivery while empowering others to do their best work. You’ll bring: 8+ years of commercial experience with C#/.NET Core/.NET 6+ Proven experience designing and building distributed, microservices-based systems Deep understanding of AWS (ECS, Lambda, EventBridge, DynamoDB, S3, etc.) Strong background in API design More ❯

+ Bonus + Hybrid Location: Central London (Hybrid: one a fortnight onsite) Salary: £95,000–£120,000 + performance bonus + excellent benefits Tech: .NET 8, C#, AWS, Microservices, REST APIs, SQL, CI/CD, Docker/Kubernetes The Opportunity We are partnering with a high-growth SaaS organisation in Central London that is scaling its cloud-based platform and … As a Lead .NET Software Engineer, you will combine hands-on technical expertise with leadership responsibilities, including: Designing and leading the development of scalable backend services using .NET 8 (C#) Architecting cloud-native microservices and distributed systems on AWS Driving engineering standards, best practices, and technical excellence across teams Leading architectural discussions and guiding long-term technical strategy Collaborating with … complex engineering challenges. You’re comfortable taking ownership of architecture and delivery while empowering others to do their best work. You’ll bring: 8+ years of commercial experience with C#/.NET Core/.NET 6+ Proven experience designing and building distributed, microservices-based systems Deep understanding of AWS (ECS, Lambda, EventBridge, DynamoDB, S3, etc.) Strong background in API design More ❯