26 to 44 of 44 .NET Framework Jobs in the City of London

Job Title/Corporate Title: C# .NET Full Stack Developer Contract: £750 - £950/day (Inside IR35) Location: London (Hybrid) You’ll be joining a major financial services organisation to design, build, and support Full Stack C# .NET applications used across core regulatory and reporting systems. Your mission — develop, integrate, and enhance enterprise-grade software that … underpins finance and regulatory reporting processes. You’ll work across the stack using C#, .NET, SQL Server, and Oracle, collaborating with DevOps and cloud teams to deliver high-performance, resilient solutions in a highly regulated environment. This is a hands-on development role for someone who knows how to turn business requirements into robust, scalable applications — and can … code, design, and integrate at a high technical standard. What you’ll be doing: Develop and maintain .NET applications (both Windows and web-based). Build and optimise SQL Server and Oracle database components (PL/SQL & T-SQL). Support integration and automation initiatives across financial systems. Apply best practices in design, testing, and DevOps CI/ More ❯

and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers — setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring performance, security, and … Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history of technical excellence and leadership in commercial software development Technical Expertise Advanced proficiency in C#/.NET Core/.NET Framework Strong command of Azure Cloud Services Deep experience with SQL Server and high-volume transactional systems Expertise in data architecture, performance More ❯

Lead .NET Developer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a .NET Specialist to help drive modernisation, set technical direction, and mentor squads as they scale. This … Expect to spend plenty of time coding, alongside leading migrations and mentoring engineers. What you’ll be doing: Own design + build of complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Influence the technical roadmap across multiple squads … Mentor developers through code reviews and architectural guidance Optimise SQL/T-SQL performance for production systems What we’re looking for: Strong background in C# and modern .NET Core Comfortable balancing legacy upkeep with platform modernisation Confident with IIS, AWS, TeamCity, Octopus Deploy, SQL Server Bonus points for exposure to Angular or Telerik libraries Experience in a More ❯

business logic and actuarial models. Key Responsibilities Lead the design and delivery of high-quality insurance-based applications and system integrations. Provide hands-on coding expertise across C#, .NET Framework/Core, MVC , and Web APIs . Collaborate with business and actuarial teams to develop and maintain Rulebook-based pricing solutions . Produce technical specifications, ensure More ❯

C# Developer to join a busy development team within a leading financial environment. The role involves designing, developing and supporting a range of business applications built on the Microsoft .NET platform. You’ll be working closely with database and infrastructure teams, supporting both new and existing systems in a fast-paced environment. Key Responsibilities: Develop and maintain applications … using C# and the .NET Framework Support and enhance existing Windows and web-based systems Work with SQL Server and Oracle databases, writing efficient T-SQL and PL/SQL queries Follow change management and release procedures to ensure system stability Troubleshoot application, database and environment issues across multiple teams Provide occasional out-of-hours or … weekend support when needed Skills and Experience: Strong C#/.NET development background Good understanding of object-oriented programming Experience with SQL Server or Oracle databases Familiarity with IIS and Windows application development Excellent communication and problem-solving skills Desirable: Exposure to DevOps, CI/CD tools or Agile environments Experience with web applications or infrastructure configuration This More ❯

a Back-End Microsoft Developer Strong Academic Background with Demonstrable Achievements Proven ability to excel in time-constrained, algorithmic problem-solving Technical Expertise: Advanced Proficiency in: C# and .NET Framework Microsoft Azure Cloud Platform SQL and SQL Server Complex Data-Driven Software Development Strong Algorithm and Data Structure Knowledge Preferred Background: Experience in FinTech or Similar More ❯

C# Developer (.Net) Location: Canary Wharf Hybrid: 3 days onsite per week Rate: £415 per day (Inside IR35) Duration: 6 months initial contract with potential extension up to 2 years with a Permanent conversion option Positions Available: 13 positions Industry: Financial services Interview Process: 2 rounds of interview - Face-to-face interview only, and Technical assessment - Home assignment … on behalf of our client, a leading financial services company, within their Business Intelligence development team. The role focuses on developing and supporting business applications using the MS .NET platform (C#, Visual Studio) and working with both Oracle and SQL Server databases. You’ll be joining a collaborative team that delivers key business solutions across various environments. Key … Responsibilities: Design, develop, and maintain business applications using Visual C# .NET with Oracle and SQL Server databases Provide ongoing support for existing C# and .NET applications, including troubleshooting and implementing solutions Write and optimise T-SQL and PL/SQL scripts for data analysis and reporting requirements Collaborate with Database Administrators, Technical Support, and Infrastructure teams More ❯

analytics to guide risk decisions What You’ll Need Around 5–7 years of professional software development experience, including at least a couple of years working with the .NET framework and C# Strong technical skills across SQL Server, Windows environments, and scripting languages such as Python and VBA A proven ability to analyse complex problems and More ❯

Senior Software Engineer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a Senior Software Engineer to help drive modernisation, set technical direction, and mentor squads as they scale. This is a senior … for the future. Expect to spend plenty of time coding, alongside leading migrations and leading/mentoring 4 engineers. You will have complete autonomy for all things C# .NET in the business, including decision making on strategy around the direction of the products, the projects, leading the team and liaising with external consultancies etc. What you’ll be … doing: Design and build complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Contribute to the technical roadmap and influence best practices across squads Partner with QA, Product, and DevOps to deliver reliable features in agile sprints Implement and More ❯

environment. A proactive, ownership-oriented attitude with the ability to take initiative and drive projects forward Proficiency in full-stack development using any object oriented language (we use .NET) and any modern javascript framework (we use React) Experience working with databases (SQL and NoSQL), APIs, and web technologies. Experience with cloud platforms (AWS, GCP, Azure) Solid More ❯

We are looking for a Senior Software Engineer with strong expertise in .NET and AWS to join our client Key Responsibilities Design, develop, and maintain scalable, high-performance software solutions. Develop and manage Infrastructure as Code (IaC) using AWS CDK (Python) to automate deployment and cloud resource management. Drive code quality through automated testing , unit testing, and adherence … infrastructure. Participate in agile ceremonies and promote a continuous improvement mindset within the team. Maintain comprehensive documentation of systems, processes, and configurations. Experience & Competencies Experience as a Senior .NET Engineer , ideally within financial services or a similarly complex domain. Strong hands-on experience with AWS and Infrastructure as Code , particularly AWS CDK in Python . Familiarity with Entity … Framework (or similar ORM frameworks) and contract-first system design . Solid understanding of automated testing frameworks and unit testing principles. Agile methodologies and a collaborative, growth-oriented mindset. Excellent problem-solving , analytical, and communication skills. Technical Skills Proficient in back-end development using .NET . Strong understanding of microservices architecture and cloud-based systems . More ❯

to deliver robust, future-ready solutions. What They’re Looking For Strong Unity development experience, including URP/HDRP pipelines, Addressables, and Job System . Skills in C# (.NET 6/8), Cesium for Unity, PostgreSQL/PostGIS, and Entity Framework Core . Familiarity with modern frontend frameworks such as React with TypeScript . Strong Agile More ❯

Software Engineer (.NET/Azure) – London (Hybrid) London, United Kingdom | Full-time | Permanent I'm working with a global business undergoing a major digital transformation, and they’re looking to bring in an experienced Software Engineer to help shape the future of their Azure-based platform. If you're confident with .NET, Azure, event-driven architecture … ll be joining a collaborative, cross-functional engineering team that’s modernising a core platform using cloud-native technologies. Key responsibilities include: Developing high-performance Web APIs with .NET Core Designing and optimising Azure-hosted SQL PaaS databases using Entity Framework Building out event-driven microservices architecture Participating in architecture discussions, design sessions, and Agile ceremonies … Contributing to a culture of clean code and continuous improvement What They're Looking For 5+ years’ experience with .NET, SQL Server, Entity Framework, and Azure Solid understanding of distributed systems and event-driven design Strong grasp of OOP principles and microservices A self-starter with a problem-solving mindset and a passion for clean, scalable More ❯

Contract Snr .NET Engineer - FinTech - OUTSIDE IR35 - £625/day We’re partnering with a leading FinTech company based in London to find an exceptional contractor who thrives in backend development. As a Senior .NET Engineer, you’ll design, develop, and optimise backend solutions for complex financial applications. You'll work in a collaborative environment, ensuring … This is a backend-focused role, but familiarity with front-end tools like Angular is a nice-to-have. Key Responsibilities: Develop and maintain backend applications using C#, .NET, and Azure. Leverage Microsoft SQL Server services (database, integration services, reporting services) and write complex T-SQL stored procedures. Implement design patterns such as Factory, Adapter, and Chain of … Responsibility to ensure clean and maintainable code. Utilise Object Relational Mappers (ORMs) like Entity Framework for efficient database interaction. Work with Test Driven Development (TDD) practices to ensure high-quality code. Collaborate with cross-functional teams to create scalable and secure solutions. Optimize database performance with database tuning (bonus). Participate in a hybrid working setup, spending More ❯

Stack Developer to join our high-performing engineering team. As the Senior Full Stack Developer, you will focus on both frontend (Angular/React) and backend development with .NET Core, driving scalable and efficient digital solutions. You'll work closely with a dynamic, Agile team that thrives on continuous improvement and innovation. About Wipro Wipro is a global … to 6% employer contributory pension, and access to quarterly bonuses. Your Responsibilities As a Senior Full Stack Developer, you will: · Develop and maintain modern full stack applications using .NET Core and Angular/React · Contribute to Agile ceremonies and collaborate on sprint planning, coding, testing, and reviews · Implement Infrastructure as Code (IaC) and CI/CD pipelines with … Azure DevOps · Apply design patterns, best practices, and the Well-Architected Framework to improve performance · Act as an individual contributor, delivering hands-on development and analysis Mandatory Skills You’ll bring expertise in: · Full stack development (.NET Core backend, Angular/React frontend) · Azure DevOps CI/CD pipelines and YAML configuration · Unit testing frameworks for More ❯

ll Bring 5+ years of commercial software engineering experience Proven experience in SaaS or payment systems Strong proficiency in full-stack development using an object-oriented backend language (.NET) and a modern JavaScript framework (ideally React) Solid understanding of databases , API design , and web architecture Experience with cloud platforms (AWS, Azure, or GCP) Strong engineering fundamentals More ❯

Senior Software Engineer (Early-Stage SaaS | .NET & React) 📍 London | 🏢 On-site | 💼 Full-time | 💰 Up to £100k + equity The Role A fast-growing startup is building a financial operations platform and is looking for a hands-on Senior Software Engineer. You’ll help build the product from the ground up, own key features, and have a real influence … on both the technology and the direction of the platform. What You’ll Do Build new features across the backend and frontend Work with .NET and a modern JavaScript framework (React used internally) Help shape the architecture as the platform scales Work closely with founders, engineers and product teams Take ideas from concept to production What … You Need Experience building software with .NET or another modern backend language Experience with JavaScript/TypeScript on the frontend Comfortable working with APIs and databases Good problem-solving skills and ability to take ownership Keen to work in a startup environment where things move fast Nice to Have (Not Essential) Cloud experience (Azure, AWS or GCP) Worked More ❯

Role : Senior .Net Developer Comp: £65,000-£75,000 Location : Central London (On-site). About the Role: As a Senior .NET Developer, you’ll play a key role in designing, developing, and maintaining software applications. You’ll collaborate closely with cross-functional teams to translate user needs into technical solutions that are robust and user … documentation, testing, and bug fixing as part of the development lifecycle Support junior developers and promote knowledge sharing across the team Tech Stack & Requirements: Strong experience in C#, .NET Core, and Entity Framework Solid understanding of RESTful APIs and backend service architecture Skilled with SQL and relational database design Experience with writing standalone distributed services Experience More ❯

B.Sc. degree in Computer Science, SW Engineering or equivalent (M.Sc. is an advantage) Experienced in Java server-side development, including cloud services (preferably AWS) Experienced with C# and .NET (ability to understand code and general knowledge of the framework) Experience in building complex, large-scale software solutions from scratch to live production Experience with Java, Spring More ❯