Job Title: Senior C#Developer Location: Crewe (Hybrid – Home & Office) We are hiring for a Senior C#Developer for an ambitious, forward-thinking global business providing transformative solutions in sustainable mobility, connectivity, and technology. This organisation has been innovating and, guiding businesses through the … and cutting-edge technology, they support customers worldwide with a range of products and services tailored to modern challenges. The Role: As a Senior C#Developer within the Fuel Solutions team, you'll help design, build, and support a range of software using modern .NET technologies. You … Develop unit and integration tests. Perform code reviews and contribute to architectural decisions. Troubleshoot and debug complex systems. Skills & Experience: 4+ years of commercial C# development experience. Strong background in .NET Core and Web APIs. Proven experience with Docker and Kubernetes for deployment. Knowledge of cloud services (Azure, AWS More ❯
C# Quantitative Developer - Up to £150k 5-days on-site in Newcastle Minimum of a 2.1 from a Russell Group University Quantitative Developer - C#, SQL, Front-Office A key client of OB, who are a pioneering venture, providing the financial and investment markets with … well as being highly motivated with the desire to push themselves to innovate and deal with complex problems and solutions. Quantitative Developer - C#, SQL, Front-Office Skills and Experience: C# is what you'll be using, open to candidates from Python, Java or C++ backgrounds SQL … and they are open on salary between £70k-£150k. You must be UK based and sadly sponsorship isn't available. Quantitative Developer - C#, SQL, Front-Office More ❯
Contract SQL/C#Developer - Energy Trading £700/day OUTSIDE IR35 Hybrid Working Our client is seeking an experienced Contract SQL/C#Developer to join their team, working on complex projects with cutting-edge technologies. This hybrid role requires you to be … in the office 2 days a week, providing the perfect blend of collaborative and flexible working environments. Required Skills: Microsoft .Net and C# Microsoft SQL Server 2019 and above, including: SQL Server Integration Services (SSIS) SQL Server Analysis Services (SSAS) - Multi-Dimensional and Tabular SQL Server Reporting Services (SSRS … forward-thinking company that values innovation and creativity. Collaborate with a team of talented professionals in a supportive and dynamic environment. Contract SQL/C#Developer - Energy Trading More ❯
Quantitative Developer (C# .Net SQL Maths) Newcastle onsite to £150k+ Are you a mathematically minded Quantitative Developer with a first class education and strong programming skills? You could be progressing your career, working on complex and interesting systems at a FinTech start-up, they have … built by Investment Quants, creating scalable, performant and supportable cross asset class applications including APIs, UIs and tools. You'll be mainly using backend C# .Net and SQL. There's an Agile, collaborative team environment with plenty of problem solving, learning opportunities and career development as the company scales. … A-level You have commercial experience in a Quantitative Developer position at a buyside institution or Tier 1 bank You have advanced C# .Net programming skills including .Net Core (will also consider Java, Python or C++ background if happy to use C# going forward) You have More ❯
Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You could be joining a FinTech start-up as a founding member … Software Engineer you will collaborate with a small, talented team to deliver the core 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 … s 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 More ❯
Commodities Trading C#Developer 6 Month Contract Location: London (Hybrid) Lorien’s UK leading Investment banking client are currently looking for a highly skilled Commodities Trading C#Developer to join the team on an initial 6-month contract. Responsibilities: To design and develop key … considered. Ensure supportability of solutions Follow the team procedures for release control, code review, deployment, source code management and architectural governance. Key Skills .Net C# SQL Servers Microservices Consul Octopus Commodities Investment banking/FS If you find this opportunity intriguing and aligning with your skill set, we welcome More ❯
Quantitative Developer - C# Location: 5 days a week onsite in Newcastle Salaries paying £80k - £150k + bonus Opportunity to join a new Joint Venture between a global management consulting firm and a top investment fund manager. If you thrive in a fast-paced environment, are passionate about … a multi-asset class pricing and risk engine. Responsibilities: Collaborate with stakeholders to address business needs and opportunities. Design, build, and maintain solutions in C# .NET (plus SQL, TypeScript, Python, C++, and PowerShell), ensuring high standards in design, testing, and operations. Review and provide feedback on development work within … engineering skills, including experience in designing APIs, understanding object-oriented and functional design patterns, and knowledge of distributed systems and asynchronous programming. Expertise in C# and .NET, or a demonstrated ability to learn quickly. Passionate about building robust, testable software with experience in various testing methodologies. Proven ability to More ❯
City of London, Greater London, UK Hybrid / WFH Options
McGregor Boyall
City Investment Bank seek a VP Level C#Developer to join the firms successful FX E-trading Franchise. Hybrid working set up circa 2 days in 3 days at home with City Office location. Daily coder role while providing technical leadership and mentoring for other developers on … and operations Development teams of connected IT systems and Architecture team Quality assurance (testing), infrastructure, change management Key skills required: Highly experienced Back End C#developer, especially with regard to delivery in a fast-paced, agile environment. C++ and Java development experience Experience with the FIX protocol … risk managers in an investment banking environment. Strong understanding of SQL, RDBMS, and messaging middleware. More details available on application. Desired Skills and Experience C# C++ FIX FX Options Backend McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds. More ❯
Senior Developer - C# .NET Newcastle - 5 days a week onsite Salaries paying £80k - £130k + bonuses Minimum 2.1 degree in Computer Science or related field, from a Russell Group University required for this role. Our client Our client are a newly created Joint Venture specialising in providing … leverage their skillsets. What Makes a Great Candidate Excellent programming and technology skills, including an in-depth understanding of and recent programming experience in C#/.Net or other object-oriented languages such as Java, Python or C++. Experience working with SQL databases. Azure or AWS experience. A strong … knowledge and exposure. Innovation : Challenge current systems and processes to achieve common goals through technical excellence and innovation. If you are a great developer and communicator who loves working on demanding initiatives and solving challenging problems, this could be the right place for you. Join them to make More ❯
I am recruiting for a Senior C# Developers for an incredibly successful client of mine whereby you will be a key contributor to the development of cutting-edge systems and services that enhance my clients exciting product and services offering. This is very much a senior C#Developer … integration tests. Conduct code reviews to uphold quality standards. Troubleshoot and debug complex systems. Experience required: At least 4 years of commercial experience in C# development. Strong problem-solving and critical-thinking abilities. Proficiency in .NET Core Web APIs. Experience in Agile, continuous delivery environments. Familiarity with relational, object More ❯
My client, a top performing global hedge fund, is looking for a talented C#Developer to join their front-office technology team. This is a unique opportunity to work closely with traders and quants, building low-latency, high-performance systems that directly impact trading outcomes. You’ll … be developing and enhancing critical components across pricing, execution, and risk, using modern C# and .NET technologies in a fast-paced, collaborative environment. The role offers exposure to cutting-edge tech, a flat structure with strong technical mentorship, and the ability to see your work make a tangible impact … on the business. Key Responsibilities will include: Designing and building high-performance trading tools and APIs in C# You’ll be developing robust, scalable applications that power real-time trading and analytics. Expect to work on everything from low-latency market data processing to trade capture systems, all built More ❯
C#/Python Developer (Azure Integrations) - Outside IR35 - Remote A UK-based organisation urgently seeks an experienced C#/Python Developer to support a complex systems integration programme, with a strong focus on Azure Integration Services . The role sits outside IR35 and can … max). You'll be joining a high-performing agile team delivering critical integration workflows between platforms. Key Skills & Experience: Strong backend development in C# .NET and Python Deep expertise in Azure Durable Functions , Logic Apps , and Service Bus Hands-on with Azure API Management (APIM) for secure, scalable …/Scrum collaboration Comfortable mentoring and contributing to architectural design Nice to Have: Experience working in the Higher Education sector Microsoft Certified: Azure Developer Associate or Solutions Architect Familiarity with common university platforms and data systems Rate: £350-£450/day IR35: Outside Location: Remote (occasional office visit More ❯
C# Software Developers Work on Next-Gen Defence Simulations £60K + Bonus 3 to 4 days on site, Stevenage A fantastic opportunity for a C#Developer with a passion for defence and cutting-edge simulation technology to join a leading Defence organisation. You'll be helping … and reliable simulation environments that help deliver safer, smarter, and more effective systems. In this varied role, you could be: Developing high-performance software (C#/C++) for real-time simulation systems Integrating software and hardware components to simulate complex weapon systems Using agile Scrum methodologies to deliver capability … iterative cycles Supporting visualisation, experimentation, and training activities for advanced defence solutions To secure the role, you will have a proven track record of: C# and/or C++ Real-Time Software Configuration control Continuous Integration and Continuous Delivery or Deployment Unit testing and test driven development Agile development More ❯
Position: C#Developer (Fixed Income) 📍 Location: London (Hybrid) 💷 Compensation: Up to £115,000 + Bonus + Comprehensive Benefits 🏢 Client: Elite Global Hedge Fund 🔍 The Opportunity We’re partnering with one of the most distinguished hedge funds globally to hire a talented C# Developer. This role offers … research, and data analysis ⚙️ Tackle sophisticated engineering problems in a high-performance, high-stakes setting 🎯 What We’re Looking For 🧠 2+ years’ experience with C# development 💻 Strong foundations in OOP, multithreading, and architecture design 🤝 Extensive experienced within Fixed Income 🌟 Why Join This Team? 🏅 Work for a globally respected financial More ❯
C# .Net Developer – Manchester City (Hybrid remote) Work on varied development projects relating to a high volume, large scale, low latency enterprise system used by millions of customers across the UK and U.S. Based in Manchester city centre (2 days a week in office) , this role is … estimations of work. Participating in end-user interactions to gather requirements and provide support. Requirements: Experience working on large commercial systems. Solid expertise in C#, .Net 6 and .Net Core and Web API’s Experience with SQL Server (MongoDB beneficial) Expertise in performance optimisation Experience of Unit and functional More ❯
C#, OMS, FIX, Docker, Kubernetes, Kafka, AWS, Hedge Fund McGregor Boyall are partnering with a premier London hedge fund enhancing functionality on their OMS platform. In this role, the successful applicant will be implementing real-time trade execution flows, developing robust message handling patterns, and optimising performance-critical systems … where microseconds matter. The tech stack combines C# with React/TypeScript frontends (backend focus on this hire), message-oriented middleware for streaming market data, and both SQL Server and Redis for different persistence needs. You'll work within modern DevOps practices using containerization and CI/CD pipelines. … you'd collaborate directly with portfolio managers and traders to solve complex problems at the intersection of technology and financial markets. Required skills: - Excellent C# programming ability - Must have extensive experience working on an OMS or related/similar platforms (EMS, PMS, booking, processing etc) - FIX experience essential - Extensive More ❯
Senior Client Developer (Unity C#) Join Offroad Games, a fresh, London-based game studio founded by ex-Space Apes Games. We’re running two live games and tackling exciting technical challenges. You’ll be right in the action, working closely with the team on Chrome Valley Customs … at least one launched mobile title. Strong teamworking skills but also can work independently on tasks with minimal guidance. Be a flexible game developer and be ready to give feedback and suggestions on anything we create. Have the drive to make fun and engaging game mechanics with great More ❯
ll need to be prepared to get your hands dirty with this problem-solving aspect of the job. You’ll be working primarily with C#, React and SQL for some of the older platforms. The key focus is that you’ve got a few years development experience with C#More ❯
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
Altrincham, Greater Manchester, UK Hybrid / WFH Options
Mayflower Recruitment Ltd
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
Bolton, Greater Manchester, UK Hybrid / WFH Options
Mayflower Recruitment Ltd
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
Leigh, Greater Manchester, UK Hybrid / WFH Options
Mayflower Recruitment Ltd
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing Refactor and enhance existing codebases to improve stability, performance, and maintainability Automate environment provisioning for development, testing … align infrastructure and development workflows Minimum Qualifications: A degree in Computer Science, Engineering, or a related field, or equivalent experience Strong programming skills in C# and familiarity with object-oriented design principles Solid experience with DevOps practices and software delivery automation Hands-on experience building and deploying containerized applications More ❯
