151 to 175 of 209 .NET Jobs in London

C# Developer/Software Engineer (.Net AWS AI) London/WFH to £80k Are you a C# Developer with finance experience? You could be progressing your career at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management. What … Fridays. There's a collaborative environment where you'll be supported with continual learning and self development opportunities. About you: You have strong C# .Net backend development skills You have a good understanding of financial markets/trade lifecycle You have experience with cloud platforms (AWS or Azure ...

current legacy systems and defining a clear technical roadmap for modernization. Candidates should have robust experience in investment banking and familiarity with Java and .NET systems. The position requires on-site presence three days a week in London, with both permanent and contract arrangements considered. #J-18808-Ljbffr ...

hands-on technical skills, and a commitment to fostering a collaborative culture. Previous experience in a scaling SaaS environment with a robust understanding of .NET applications and cloud deployment is essential. Join us in redefining how data drives compliance and verification processes! #J-18808-Ljbffr ...

architecture, and hands-on coding capability, with close engagement in client-facing and pre-sales activity. What good looks like: Strong engineering foundation (Java, .NET, or similar modern stack) Comfortable being hands-on in code when needed (e.g. CI/CD, Terraform, Kubernetes) Proven experience leading teams and mentoring ...

Senior .NET Integration Engineer City of London (3 days in office) Up to £85,000 We are seeking a Senior Integration Engineer to design and build scalable, enterprise-grade UI systems using Blazor integrated with .NET APIs. This role focuses on owning the UI and integration layer within … systems for enterprise applications Define UI architecture patterns including state management, routing, and component design Work closely with Back End teams to integrate .NET APIs and microservices Translate business and design requirements into high-quality UI solutions Ensure performance, maintainability, accessibility, and responsive design standards Contribute to UI best ...

This is a newly created position for a Senior .Net Software Developer based in Central London, paying £90,000. PLEASE NOTE – this role is 5 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# & .Net Core React.js &/or Next.js LINQ, JSON & Inversion of Control Azure PaaS, Function Apps, Blob/Table Storage, Service Bus Topics, Azure Search and API Management Infrastructure ...

Full Stack .Net Developer Fully remote working for UK based Developer, candidates must have full UK working rights. Salary up to £65k plus benefits We are recruiting for a new Full Stack .Net Developer role for a Real-time Data Monitoring company based in the UK. This company … looking for a Full Stack Developer with a strong background in C# and .Net technologies to join their remote development team. They produce a number of realtime data monitor services used by companies across the globe. They are building a new set of products for the North American market ...

love to hear from you. About the Role This role is focused on building complex, modular UI systems using Blazor integrated with .NET APIs. You will own the UI and integration layers at a systems and microservices level, applying clean architecture principles and delivering user experiences that are both … management, component communication, routing, and dynamic rendering. Translate business requirements and design files into clean, performant front-end code. Collaborate with backend developers on .NET APIs to align data integration with front-end flows. Plan for performance, maintainability, and reusability across components and screens. Prioritise accessibility and enforce responsive ...

with experience in Financial Services, particularly Life & Pensions, who wants to design and deliver robust integration solutions across complex systems. You'll work with .NET, Azure Integration Services, and modern microservices architectures to ensure seamless data flow and scalable operations. The Role: Lead the design, development, and support … integration solutions connecting applications, services, and data across the business. Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). Implement CI/CD pipelines, automation, and modern integration patterns for secure, resilient, and scalable solutions. Collaborate with ...

Senior Software Engineer (.NET/C#) | Greenfield Systems Rebuild | Remote | £80,000–£100,000 This is a hands-on senior engineering role with real technical authority. You will be the lead engineer and technical decision-maker on a greenfield rebuild of a mission-critical system, working within a small … reporting directly to the Head of Technology. Once the build is delivered, the role expands into enterprise architecture responsibilities. If you are a strong .NET engineer who has been moving into architecture and wants to own the outcome rather than advise on it, this is worth reading. THE ROLE ...

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 of greenfield projects … one. Key Skills and Requirements A degree in Computer Science or a related scientific subject. Significant, recent experience with C# and the latest .NET platform versions. Solid database development expertise, specifically using SQL Server, Oracle, or equivalent systems. Desirable skills: We would love to hear from ...

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 of greenfield projects … one. Key Skills and Requirements A degree in Computer Science or a related scientific subject. Significant, recent experience with C# and the latest .NET platform versions. Solid database development expertise, specifically using SQL Server, Oracle, or equivalent systems. Desirable skills: We would love to hear from ...

innovation and thought leadership. The Role The Application Support Engineer will provide operational and technical support for business-critical applications built on C# and .NET technologies. The role focuses on maintaining application stability, resolving production issues, supporting releases, and collaborating with development teams to ensure reliable, secure, and performant … systems in live environment Your responsibilities: · Provide day-to-day support for C#/.NET-based applications across production and non-production environments. · Investigate and resolve application incidents, including code-related and configuration issues. · Analyse application logs, exceptions, and stack traces to identify root causes. · Perform minor code fixes ...

Software Engineer, C#, .NET, Azure, React, COR7545B We’re looking for a mid-senior level Software Engineer to join the newly-created team of a leading financial services company based in Reading. The Software Engineer will work in a fully cloud-based Azure environment, to deliver new products … Role Having brought development in-house that was previously outsourced, the Software Engineer will be responsible for developing high-quality applications using C#, .NET, React and SQL Server, ensuring clean architecture and maintainable code. The Software Engineer will be working within a complex, fully cloud-based Azure environment, where ...

Senior Software Engineer | Remote | £60,000 - £70,000 | C# | .Net | React | Azure | Microservices | .NetCore | .Net Developer | Full stack Developer | Opus have exclusively partnered with a brilliant Saas company that harness technology to build Software within the Proptech industry. They’re currently looking for a Senior Developer to come … will be mentoring other Developers and driving best practices. You will be getting to work across a modern Microsoft tech stack which includes C#, .Net, .NetCore, React, Azure, Microservices and TDD. This company work remotely with occasional visits into their office in the South East and offer some brilliant ...

Senior Software Engineer | Remote | £60,000 - £70,000 | C# | .Net | React | Azure | Microservices | .NetCore | .Net Developer | Full stack Developer | Opus have exclusively partnered with a brilliant Saas company that harness technology to build Software within the Proptech industry. They’re currently looking for a Senior Developer to come … will be mentoring other Developers and driving best practices. You will be getting to work across a modern Microsoft tech stack which includes C#, .Net, .NetCore, React, Azure, Microservices and TDD. This company work remotely with occasional visits into their office in the South East and offer some brilliant ...

Dynamics 365 Developer - Remote (Tech stack: Microsoft Dynamics 365, PowerApps, Power Platform, C#, .NET, SQL, JavaScript, DevOps, Agile) Our client is a specialist technology business delivering bespoke solutions within the legal tech space. They are looking to recruit a Dynamics 365 Developer to work across both existing systems … fully remote role where you will design, build, and enhance applications using Dynamics 365, PowerApps, and the wider Power Platform, alongside core .NET technologies. Key Responsibilities: * Develop and customise solutions using Dynamics 365 and PowerApps. * Build and maintain applications using C#, .NET, SQL, and JavaScript. * Enhance system performance ...

Senior Systems Integration Consultant (.NET, Azure, Data, MIS) Job Description Contract Length: 3 months Start: Immediate Day Rate: £400-£500 per day IR35: Outside IR35 Location: Hybrid, predominantly remote Overview We are looking for a senior Systems Integration Consultant to step into a live environment and stabilise a newly … resolve issues and ensure the platform is fully operational. Key Responsibilities Stabilise and optimise Mitratech platform integration Extract and migrate data from legacy .NET systems Build and troubleshootintegrations across: Timesheet systems HR workflows including Excel exports Internal operational systems Implement workflow automation and triggers Debug live production issues across ...

collaborate across multidisciplinary engineering teams, providing technical leadership while remaining hands‐on with complex systems. What You’ll Do Build production‐grade software using .NET C#, Python , and modern backend technologies Design and prototype services using containerised microservices Apply and challenge engineering best practices to continuously improve quality Make … culture of technical excellence What You Bring Degree in Computer Science, IT, or related field 5+ years’ experience building backend systems with .NET C# and ASP.NET Core Web APIs Strong understanding of Clean Architecture , CQRS , ideally with MediatR Experience with communication protocols: TCP/IP, UDP, REST, gRPC, SignalR ...

Senior Software Engineer (.NET/C#) | Greenfield Systems Rebuild | Remote (UK) | £80,000-£100,000 This is a hands-on senior engineering role with real technical authority. You will be the lead engineer and technical decision-maker on a greenfield rebuild of a mission-critical system, working within … reporting directly to the Head of Technology. Once the build is delivered, the role expands into enterprise architecture responsibilities. If you are a strong .NET engineer who has been moving into architecture and wants to own the outcome rather than advise on it, this is worth reading. You will ...

driven features and data workflows Debugging, testing, and improving system performance Working closely with the business to help automate operational processes TECH STACK .NET (backend) React (frontend) MySQL AWS Python (AI and data models) Experience Required 3+ years of experience in software development Strong .NET experience Some front ...

Integration Architecture: Strong expertise in API integration, REST API design and exposure, interface-driven architectures, integration-heavy environments, abstraction layers, system decoupling Backend Development: .NET Core, C#, API services, integration services Architeture & Platforms: Design of scalable and reusable integration layers, interoperability with multiple systems (internal & external), data platforms … Energy environments 🔹 Senior API/Integration expert with a strong architectural mindset, 🔹 Solid experience designing and implementing REST and legacy integrations, 🔹 Strong background in .NET Core and Microsoft Stack 🔹 Structured, rigorous 🔹 Excellent communication skills with technical stakeholders, 🔹 Comfortable working mainly with technical teams in a transverse role, 🔎 Interested ...

driven features and data workflows Debugging, testing, and improving system performance Working closely with the business to help automate operational processes TECH STACK .NET (backend) React (frontend) MySQL AWS Python (AI and data models) Experience Required Around 2+ years of experience in software development Experience across frontend and backend … development (.NET/React) – Angular/Vue is fine Good understanding of software engineering fundamentals Interested in working in a startup/Have startup experience AWS exposure (similar cloud is fine) Interested in AI Why Join? Join a startup at launch stage Work on AI-driven fintech products Gain ...

enhancing applications that directly support real-world trading strategies, working closely with experienced developers, researchers, and traders. This role sits within a C# .NET, SQL Server, and ASP.NET ecosystem, with a strong focus on building reliable, scalable, and maintainable systems. Key Responsibilities Design, develop, and maintain applications using C# … .NET Contribute to system architecture and technical design discussions Build and enhance systems supporting trading and research activities Develop and optimise database solutions (SQL Server or similar) Improve system performance, reliability, and automation Collaborate with cross-functional teams to translate requirements into technical solutions Participate in code reviews ...

will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C#/.NET/SQL Server/ASP.NET ecosystem, developing high-performance, reliable, and maintainable applications. Key Responsibilities Design, develop, and maintain high-performance applications in C# … .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems Mentor junior developers and promote best engineering practices Participate in code reviews and enforce ...