1 to 25 of 111 C# Developer Jobs

Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £150k Do you have expertise with backend C# combined with strong technical leadership skills? You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence … North East. As a Lead C# Developer/Backend Software Engineer you'll design and implement the logic behind core applications, build APIs and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable server environments. ...

Full-Stack C# Developer - Greenfield Projects - £40k - £110k DOE (Various roles) City of London Are you a talented developer looking to work in a non-corporate, collaborative environment where your technical input makes a genuine difference? We are currently partnering with a forward-thinking team … team, free from bureaucratic hurdles, where your ideas and solutions are truly valued. Key Responsibilities Build and maintain bespoke in-house applications within a C#/.NET, SQL Server, and ASP.NET ecosystem. Analyse sports markets and identify new investment opportunities using highly automated, data-driven processes. Take ownership ...

Full-Stack C# Developer - Greenfield Projects - £40k - £110k DOE (Various roles) City of London Are you a talented developer looking to work in a non-corporate, collaborative environment where your technical input makes a genuine difference? We are currently partnering with a forward-thinking team … team, free from bureaucratic hurdles, where your ideas and solutions are truly valued. Key Responsibilities Build and maintain bespoke in-house applications within a C#/.NET, SQL Server, and ASP.NET ecosystem. Analyse sports markets and identify new investment opportunities using highly automated, data-driven processes. Take ownership ...

Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £150k Do you have expertise with backend C# combined with strong technical leadership skills? You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence … North East. As a Lead C# Developer/Backend Software Engineer you'll design and implement the logic behind core applica... WKCL1_UKTJ ...

Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £150k Do you have expertise with backend C# combined with strong technical leadership skills? You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence … North East. As a Lead C# Developer xxuwjjq/Backend Software Engineer you'll design and implement the logic behind core applica... Apply promptly! A high volume of applicants is expected for the role as detailed below, do not wait to send your CV. ...

C# Software Developer Energy Sector Experience Essential Are you a talented C# Software Developer with proven experience delivering software solutions within the energy sector? Our client, an established software group working across energy, AI, and technology-led industries, is looking for a strong C# … able to demonstrate delivery across enterprise-scale or business-critical platforms. Key Responsibilities Develop, maintain, and enhance applications using ASP.NET MVC and C# Deliver scalable, secure, cloud-based solutions within energy-focused environments Work with Postgres and Azure SQL to optimise database performance and structure Build and maintain serverless ...

C++/C# Software Developer Permanent • Full-time • Near Northampton, UK • £45,000–£60,000 DOE Are you a skilled C++ or C# developer who wants to write software that genuinely matters? Our client builds cutting-edge security and intelligence systems used … client across a range of projects. We’re not expecting any one person to have them all. If you’re a strong C++/C# developer with some of these capabilities and a genuine interest in this field, we want to hear from you – applications from developers ...

C# Developer Role - Hybrid/Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL) Duration - 6 months with very likely extension Location - Hybrid/Liverpool Street (London) - 3 days per week in a Liverpool Street office Rate … Inside IR35) Tech Stack C# SQL Oracle Tasks Tasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users and preparing documents. Along with the application ...

clearance with a CI Polygraph. Please apply only if you have an active TS/SCI clearance with a CI Polygraph. .NET/C# Developer - Senior Position/LCAT: .NET/C# Developer Level: Senior Lead Designation: N/A Location: Fort Belvoir … Role Summary Provides application development for a Microsoft-oriented enterprise environment, including MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development, in support of custom in-house developed web applications. Develops, tests, and deploys software within a DEVSECOPS operating environment across multiple supported networks ...

clearance with a CI Polygraph. Please apply only if you have an active TS/SCI clearance with a CI Polygraph. .NET/C# Developer - Senior Position/LCAT: .NET/C# Developer Level: Senior Lead Designation: N/A Location: Fort Belvoir … Role Summary Provides application development for a Microsoft-oriented enterprise environment, including MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development, in support of custom in-house developed web applications. Develops, tests, and deploys software within a DEVSECOPS operating environment across multiple supported networks ...

C# Developer 6 Month ContractLocation: London (Hybrid) Lorien's UK leading Investment banking client are currently looking for a highly skilled C# Developer to join the team on an initial 6-month contract. Commodities FX Trading Quants knowledge Investment banking/FS Willing ...

Full Stack Developer (C#/React/Azure) Location: Coventry - Hybrid (2 days onsite per week) Salary: £60,000 - £70,000 Eligibility: Must be based in the UK - no visa sponsorship available About the Company Join a fast-moving digital team that's modernising enterprise systems …/CD tools Develop and maintain RESTful APIs and web applications Support continuous improvement by researching new tools and methods Core Tech Stack: Backend: C#, .NET Core, REST APIs Frontend: ReactJS, JavaScript, Blazor, HTML, CSS Cloud & DevOps: Azure, Azure DevOps, GIT Database: PostgreSQL/SQL Containerisation: Docker, Kubernetes (nice ...

C# Developer – Fixed Income Options London | Hybrid | Leading Options Market Maker A leading global options market maker is expanding its Fixed Income Trading team in London and is seeking a junior to mid-level C# Developer to join a high-impact, front-office engineering … enhance trading tools and systems that support pricing, execution, and research across fixed income options markets. About this role: Develop and enhance high-performance C# trading applications used by front-office teams Collaborate closely with traders and quantitative researchers to enable new trading strategies Build scalable, low-latency systems ...

Front Office C# Developer - Commodities Derivatives Day Rate: Up to £750/day (Umbrella) Duration: 6 months initially Location: Marylebone - London Working Arrangement: Hybrid - 3 days per week onsite We're looking for a Front Office C# Developer to join a London-based leading … Ensure platform stability through robust testing and release control. Follow team standards for code review, deployment and architectural governance. Essential Strong commercial experience with C# Solid SQL Server experience Background working on complex, business critical platforms Experience with commodities and/or derivatives products Organised, delivery-focused, and comfortable ...

Front Office C# Developer - Commodities Derivatives Day Rate: Up to £750/day (Umbrella) Duration: 6 months initially Location: Marylebone - London Working Arrangement: Hybrid - 3 days per week onsite We're looking for a Front Office C# Developer to join a London-based leading … Ensure platform stability through robust testing and release control. Follow team standards for code review, deployment and architectural governance. Essential Strong commercial experience with C# Solid SQL Server experience Background working on complex, business critical platforms Experience with commodities and/or derivatives products Organised, delivery-focused, and comfortable ...

Description Front Office C# Developer - Commodities DerivativesDay Rate: Up to £750/day (Umbrella)Duration: 6 months initiallyLocation: Marylebone - LondonWorking Arrangement: Hybrid - 3 days per week onsite We're looking for a Front Office C# Developer to join a London-based leading Global Markets … Ensure platform stability through robust testing and release control. Follow team standards for code review, deployment and architectural governance. Essential Strong commercial experience with C# Solid SQL Server experience Background working on complex, business critical platforms Experience with commodities and/or derivatives products Organised, delivery-focused, and comfortable ...

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35 Enterprise Digital Transformation Programme £530 per day | Inside IR35 Hybrid – 3 days onsite in London I’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a significant … transformation programme, and we’re looking for a strong C# .NET Developer to join the engineering team on a contract basis. This is an excellent opportunity to work in a modern cloud-first environment, helping to deliver scalable backend applications within a fast-paced enterprise programme. ...

C# Senior Software Developer - Onsite My client is seeking a talented C# Senior Software Developer to join their Preston-based team. This role offers an exciting opportunity to lead projects, mentor junior developers, and work on high-impact, secure banking solutions. You will … infrastructure, and QA teams for portal and API releases Participate in code reviews, version control, and CI/CD deployment workflows Required Technical Skills C# (strong proficiency) ASP.NET MVC or .NET Core Web API MVC concepts: Routing, Controllers, Filters, Middleware, Model Binding, Dependency Injection Entity Framework Core (DbContext, DbSet ...

C# Developer - Farnborough, Hampshire - Hybrid (2 days onsite)£450-£500 per day (Inside IR35) Hybrid working - 2 days per week in Farnborough You must live within 1 hour of travel to site I am working with a highly regarded global financial services organisation who are looking … C# Developer with Blazor experience to join their team on a long-term contract basis.This is a fantastic opportunity to join a business where contractors are genuinely valued, integrated into the team, and given the chance to contribute to meaningful, long-term programmes. You'll be working ...

days a week in the Oxford Street area of Central London. To be considered for this position, you will be a highly experienced Lead C# Software Developer with solid Azure cloud experience. Ideally, you will have a background with B2C website booking platforms/hospitality systems … stand-alone .NET developer in a team with a Front End Developer and a UX Designer. The ideal Senior C# .Net Developer will have previous experience with: B2C website development & B2C payment platforms Software design & architecture C# & .Net Core React.js &/ ...

C# .NET Developer (Azure) - Sheffield Our client based in Sheffield is looking for a skilled C# .NET Developer to join a small, collaborative engineering team working on modern cloud-based applications. This is a hands-on development role where you will contribute across … build and evolve scalable backend services and APIs that support business-critical systems. Key Responsibilities Design, develop, and maintain high-quality backend services using C# and the latest .NET technologies (.NET 8, ASP.NET Core) Build and enhance RESTful APIs to support internal and external applications Work with Azure cloud ...

days a week in the Oxford Street area of Central London. To be considered for this position you will be a highly experienced Lead C# Software Developer with solid Azure cloud experience. The ideal Senor C# .Net Developer will have previous experience with: C# … offering a salary of £90,000. If you are an experienced Senior Software Developer or Lead Software Developer with impressive C# skills and you are looking for a new challenge, please send me your CV immediately. ...

Junior Software Developer (C#/Azure/Blazor) £35,000 | Hybrid (Liverpool – 2–3 days per week) A growing UK-based technology business is looking to hire a Junior Software Developer to join its expanding in-house development team. The company operates a proprietary platform … while learning from experienced developers within a structured Agile environment. Key Responsibilities Fix bugs and deliver incremental improvements across the platform Build and enhance C# applications and Blazor-based user interfaces (WASM/SSR) Support backend development across APIs and Azure services Work with existing systems to improve performance ...

Full Stack Developer C#/React - Commodities Trading Permanent | Full‐Time | London We are working with a global energy and commodities trading organisation that plays a central role in the movement of energy and resources worldwide. Combining large‐scale trading operations with deep investment in infrastructure … quantitative users, traders, and operational teams to deliver tools that have real commercial impact. Key Responsibilities Design, develop, and maintain full stack applications using C#/.NET on the backend and React on the frontend Build scalable, performant APIs and data‐driven services within a global enterprise environment Work ...

undergoing a major systems transformation following a recent acquisition. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large-scale legacy platform and supporting its transition from an on-premise desktop environment … platform. The role will involve working closely with the CTO and wider engineering team to assess, improve and progressively enhance an established C# codebase built on older Microsoft technologies. Due to the nature of the work, the business is open to hybrid working, but they would ideally like someone ...