26 to 37 of 37 Senior C# Developer Jobs in England

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 … 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 and the More ❯

Senior Software Developer – C# .NET Location: Wellingborough, England Contract: 6 or 12-month Fixed Term Contract Salary: £48,000 – £56,000 We’re looking for a Senior Software Developer with strong C#, .NET, and web development skills to join a global engineering and logistics company on a 6 or … offers the chance to work on large-scale, international projects and deliver innovative solutions across the full product lifecycle. You’ll be maintaining and developing high-performance applications using C#, ASP.NET, MVC, and .NET Core, while collaborating with cross-functional teams in an international environment. Key Responsibilities Develop, maintain, and improve web applications using C#, ASP.NET, MVC, and … Write and maintain technical documentation and ensure high-quality, maintainable code Collaborate with international teams on key projects and provide technical support when required Key Requirements Proven experience in C#, .NET, ASP.NET, and web technologies (HTML5, CSS3, JavaScript, Angular, TypeScript) Skilled in building responsive, cross-browser compatible applications Strong database knowledge (MS SQL, Oracle, MySQL, MariaDB) and understanding of More ❯

Senior Technical Java and C# .net Software Developer We are currently recruiting a Java with C# .net Senior Software Developer ?" who can be the lead in the team. You must have at least 5 to 7 years proven track record of developing software with Java and C# .net framework … business acumen, and customer focus. · Provide governance for troubleshooting complex system issues as necessary · Develop or contribute to business cases, roadmaps and proposals which may include presentations to senior management. · Collaboration with Business, Technical, and Security Architects, to manage risk identification and risk mitigation tactics associated with the designs. Role-specific knowledge: · 5+ years of senior technical lead. · 5+ years of strong hands-on experience as a developer working on JAVA or .NET Framework standards and technologies - C#.NET, ASP.NET, AngularJS, SQLServer, Web Services, Cloud Platforms, AJAX, JQUERY, XML/JSON, HTML, CSS · Retail/digital technology experience is essential · Experience in SalesForce Service and Marketing Clouds · Safety Knowledge: · Provides a consistent outstanding More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Lead Software Engineering role in a growing SaaS product company ? Keen to grow your technical skills around .Net 8, assist the CTO directly with the adoption of the latest AI/LLM dev tools (Cursor, v0) & act as lead/mentor to a Dev' team … d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we'd like to speak with you! Job title: Lead Software Developer or Senior Software Developer looking for a step up to Lead (we would need to see some small team Lead experience though) Location: Banbury, Oxfordshire. … an Agile Scrum Master, excellent technical product team & obviously software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v18+) - MySQL - GitHub More ❯

MARGO is partnering with a leading financial institution to find a Senior C# WPF Developer with experience in Risk and Profit and Loss. Knowledge of Greeks is important in this role. What you'll do: Design & Development Build and enhance high-performance WPF C# applications Collaboration & Delivery Work closely with trading desks, pricing heads … Follow all legal, regulatory, and internal compliance standards (e.g., market-abuse regulations) Contribute to change-management processes, ensuring minimal business disruption Tech stack & skills: Deep expertise in WPF and C# Agile delivery mindset; rapid prototyping and iterative improvement Systematic reasoning, transparency, and accountability Ability to juggle competing priorities with a solutions-driven attitude Continuous learner: eager to adopt new … technologies and share insights Technical fit - what we're looking for: Degree (or equivalent) in Computer Science, Engineering, Mathematics, or related field 6+ years' experience building WPF C# desktop applications in a high-performance trading environment WHAT'S NEXT? First meeting: You will meet with a Talent Acquisition Manager and a member of the executive committee to discuss your More ❯

This successful Cambridge company develop simulation software for specialist industry. With international reach, yet local offices and a family feel they would suit an experienced engineer skilled in C# software development including desktop UI. WPF or comparable technologies are ideally sought. You'll be someone able to take on a senior hands-on development position within their … UI team, as well as assuming technical leadership responsibilities for the UI as your familiarity grows. Colleagues are likewise C# developers, a small team working closely with mathematical software engineers. They in turn develop the simulation side of the software suite, which is also C#. You will have: Extensive commercial-grade software development experience in C# with .NET … whether .NET 6-9, Framework or Core). Held senior developer responsibilities before, including taking a view on software engineering approaches, leading projects where required, and mentoring junior colleagues. Ideally, experience with WPF, XAML and related application architecture and event routing. Otherwise, desktop UI via Prism or with Windows Forms (or Qt, etc.), or equivalent UI More ❯

resellers and service providers to the best IT, Comms and Cloud products and services so they can create brilliant technology solutions for UK businesses. We're seeking a Senior Software developer, to work predominantly on the adoption of AI & code generation tooling across a wide range ofproducts. This role is a hybrid role with the expectation … location and office work expectation is essential to be considered for this role. What You'll Be Doing Analyse business requirements and translate them into intelligent, scalable solutions using C# and .NET. Design and implement AI-powered developer tools and services, including prompt-based code generation, smart documentation, and internal copilots. Own the end-to-end integration … including those related to AI usage (e.g., latency, cost, reliability). Champion Vibe coding principles -making development more intuitive, expressive, and enjoyable for engineers. Your Qualifications Strong experience in C#/.NET (Web API, MVC), with a passion for clean, maintainable code. Expertise in Entity Framework and MS SQL . Experience with cloud platforms (Azure or AWS). Hands More ❯

Are you a seasoned developer with a passion for clean code, modern architecture, and cutting-edge technology? We … re looking for a Senior Developer to join our growing team and play a key role in the development of scalable, high-performance applications using C# and the .NET ecosystem. Key Responsibilities: Design, develop, and maintain enterprise-level applications using C# and .NET Core . Collaborate with cross-functional teams to architect robust solutions … search capabilities using ElasticSearch and the NEST client . Lead code reviews, mentor junior developers, and contribute to improving best practices. You'll Need: 5+ years of experience with C#/.NET development. Proficiency in Blazor and/or MAUI for front-end UI development. Solid knowledge of .NET Core APIs and RESTful service design. Hands-on experience with More ❯

Are you a seasoned developer with a passion for clean code, modern architecture, and cutting-edge technology? We … re looking for a Senior Developer to join our growing team and play a key role in the development of scalable, high-performance applications using C# and the .NET ecosystem. Key Responsibilities: Design, develop, and maintain enterprise-level applications using C# and .NET Core . Collaborate with cross-functional teams to architect robust solutions … search capabilities using ElasticSearch and the NEST client . Lead code reviews, mentor junior developers, and contribute to improving best practices. You'll Need: 5+ years of experience with C#/.NET development. Proficiency in Blazor and/or MAUI for front-end UI development. Solid knowledge of .NET Core APIs and RESTful service design. Hands-on experience with More ❯

they are building a team in house so you will be getting involved pretty much from day one, an exciting opportunity! Description Design, develop, and implement software solutions using C# and related technologies. Collaborate with cross-functional teams to translate business requirements into technical solutions. Participate in code reviews to ensure high-quality coding standards are maintained. Contribute to More ❯

Required Skills: Proficiency in C# using Visual Studio and Azure DevOps is essential, along with knowledge of HTML, JavaScript, CSS, and modern web frameworks. Experience with SQL Server or similar relational databases, and familiarity with testing frameworks. Knowledge of the Microsoft Azure platform, RESTful services, SOAP, and scalable API design. Knowledge of frameworks and libraries like Vue.js, React, JSON More ❯

We are seeking a highly skilled and motivated server side application developer to play a key role on a greenfield multiyear transformation program aimed at modernizing and scaling the electronic FX Options Trading Business Responsibilities: Contribute to the design and development of the electronic FX Options Trading Platform specializing in: RFQ (Request for Quote) client or sales to … continuous improvement of development, deployment and testing processes Share your knowledge and mentor other developers, fostering a collaborative and innovative team environment Required Skills: Advanced knowledge and experience of C# development in an event-driven architecture. Equivalent experience using Java would also be considered Proficient in multithreading, concurrency and performance tuning Solid understanding of inter-application communication using REST More ❯