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 ❯
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 ❯
Senior C#Developer – Short-term contract between 5-6 weeks, day rate £500 - £550, Outside IR35 – Fully remote What You’ll Be Doing: You will be creating and maintaining both internal and external-facing applications that push the envelope in terms of quality and performance. Enhance and … lifecycle. Track, identify, and fix bugs and issues while also maintaining a comprehensive software test strategy. What You Bring: Proven experience in developing with C# and MS SQL Server. Hands-on experience building cloud-based applications, including Azure Functions, Azure Storage, and Service Bus. Bonus points if you’ve 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 ❯
A Proprietary Trading firm in London is seeking a talented Senior C#Developer to join their trading and execution team. This new role has been created due to the company’s strong performance and internal growth, offering a fantastic opportunity for someone that really enjoys working with … with the team to improve operational workflows and user experience. Key Requirements Degree in Computer Science or a related scientific field. Strong experience in C# and the .NET platform. Experience in building or maintaining trading and data analytics platforms. Good database experience, including SQL Server, Oracle, or similar. Knowledge 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# 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 ❯
for any application - even if this is via personal projects, It doesn't need to be commercial experience. Core technologies utilised in this team - C#, F#, TypeScript, SQL Server The Senior Software Developer is likely to have a relevant degree in Computer Science or similar subject and … policy with no requirement to visit an office. Essential experience: Functional programming experience or a vested interest in functional programming even in personal projects C# SQL Web application development Experience in any of the following areas would be advantageous F#, Haskell or similar functional programming language Functional programming in … C# Domain driven design Language-ext Property-based testing Domain specific languages TypeScript Healthcare or medical industry experience If you are seeking a role of this nature, please get in touch for more information. More ❯
TrueNorth are working with a growing fintech startup organisation who are looking for another Full Stack Developer to join the team. They have developed a popular and successful SAAS expense management platform, and are looking for a new engineer to focus on improving the platforms usability and building … sound of a fast paced startup, a natural problem solver and someone that is keen to make an impact. Their current tech stack is C# ASP.Net MVC however a move to .Net Core is on the horizon. The successful candidate must be okay with working with ASP.Net MVC pending … process - so it's a great platform to expand on these skills. Key skills and experience required: Minimum 6 months of commercial experience in C# web development (either ASP.Net MVC or Core) Entity Framework Javascript Cross browser web applications with mobile friendly UIs APIs (RESTful beneficial) Beneficial: Single page 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 ❯
products are transforming the way people book tables, enjoy their nights out, and receive exceptional service. They’re currently hiring a Senior Software Developer to join a high-performing, cross-functional team within their Bookings product area. This is a hands-on role covering the full development lifecycle … in writing high-quality software, and brings a positive, proactive attitude to the team. Required Skills & Experience: 5+ years of hands-on experience with C#/.NET Core/ASP.NET and PHP Strong experience with JavaScript frameworks like React Proficient in relational databases (SQL Server, MySQL) Knowledge of high 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 ❯
Job Title : Software Developer Client : Elite Scaling FinTech Salary : Up to … 160k + Bonus Location : London (Hybrid) Sells : Cutting-edge tech, front office facing, technically challenging My client is looking for the top percentage of C# Software Developers with Fixed Income experience to join their team! You will be vital in designing and building slick and complex enterprise-grade applications More ❯
Are you a curious and creative developer looking to make an impact? Join Purple Crane , a well-established software development company in London, and use your skills to contribute to meaningful projects and develop online products. Our team craft and develop digital products and services that are used … expertise, we value curiosity, good listening, and the opportunity to prototype and innovate while creating positive change. About You We’re seeking a developer who shares our passion for innovation and problem-solving. You’ll need to be skilled with the technologies we … use and excited by the opportunity to work closely with clients and a supportive team. Required Skills: Experience with the Microsoft technology stack , including C#, .NET, MVC, NHibernate , and Visual Studio . Proficiency in databases like SQL Server and MySQL . Front-end experience with JavaScript and TypeScript . More ❯
Senior .NET/React Developer - Global Markets Inside IR35 Contract Role - London - Up to £850 per day About the Role: We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong … rate: Up to £850 per day Duration: 6 months initial term with expected extensions Location: London office If you're an experienced .NET developer looking for a varied and technically challenging role within financial technology, we'd love to hear from you. More ❯
considered, you’ll need: Real-world experience with LLMs and agentic frameworks (OpenAI, LangChain, AutoGen, Semantic Kernel). Strong software engineering background (.NET/C# and Azure). A builder’s mindset - experimental, action-biased, and commercially aware. There is also strong intention for this role to become permanent More ❯
