26 to 50 of 92 .NET Core Jobs in the City of London

web applications that drive both internal operations and client-facing services. Our tech stack is built on a modern, stable foundation — including React , Tailwind CSS , C# 9 , and .NET Core — and we're focused on scaling feature delivery and enhancing technical maturity. You’ll be joining a team that’s moved from chaos to clarity. With … collaborative peers. Key Responsibilities; Build responsive and accessible web interfaces using React.js (Next.js) , JavaScript , HTML5 , and Tailwind CSS . Develop backend services and RESTful APIs using C# 9 and .NET Core . Interact with MSSQL databases via stored procedures and schema design. Own tasks end-to-end, from development through deployment, testing, and documentation. Contribute to code … interfaces. What we're looking for; 3+ years of hands-on experience in full stack web development . Strong knowledge of JavaScript , React.js , and Next.js . Solid experience building .NET Core Web APIs with C# 9 . Proficiency in SQL Server (MSSQL), including stored procedures and schema management. Comfort with Tailwind CSS and responsive, accessible design principles. More ❯

web applications that drive both internal operations and client-facing services. Our tech stack is built on a modern, stable foundation — including React , Tailwind CSS , C# 9 , and .NET Core — and we're focused on scaling feature delivery and enhancing technical maturity. You’ll be joining a team that’s moved from chaos to clarity. With … collaborative peers. Key Responsibilities; Build responsive and accessible web interfaces using React.js (Next.js) , JavaScript , HTML5 , and Tailwind CSS . Develop backend services and RESTful APIs using C# 9 and .NET Core . Interact with MSSQL databases via stored procedures and schema design. Own tasks end-to-end, from development through deployment, testing, and documentation. Contribute to code … interfaces. What we're looking for; 3+ years of hands-on experience in full stack web development . Strong knowledge of JavaScript , React.js , and Next.js . Solid experience building .NET Core Web APIs with C# 9 . Proficiency in SQL Server (MSSQL), including stored procedures and schema management. Comfort with Tailwind CSS and responsive, accessible design principles. More ❯

The role is offering a base of £70,000 + benefits and its hybrid working. As a senior technical lead, you’ll be responsible for full-stack development using .NET Core, Power Platform (Power Apps, Power Automate, Power BI), Azure Functions, and modern front-end frameworks like React or Angular. You’ll mentor developers, collaborate with cross … functional teams, and lead projects from concept to deployment. What You’ll Do Develop modern applications and APIs with C#/.NET Core and Azure Build responsive UIs using Fluent UI, React, or Angular Lead Power Platform development and system integrations Drive DevOps best practices with CI/CD pipelines, PowerShell scripting, and Azure DevOps Guide and More ❯

our web platforms. What You’ll Do Build and maintain modern web apps using React.js , Next.js , JavaScript , HTML5 , and Tailwind CSS Develop backend logic and REST APIs with C# (.NET Core) Work directly with MSSQL databases (queries, schema updates, stored procedures) Deliver secure, high-performance, and maintainable features What You Bring 3+ years of hands-on experience … in full stack development Strong skills in JavaScript , React.js , and Next.js Backend experience with C# 9 , .NET Core , and REST APIs Proficiency with SQL Server (stored procedures, schema management) Comfortable with Tailwind CSS and responsive UI design Experience with Git-based workflows and tools like Azure DevOps Bonus Points For Exposure to Azure cloud services (App Services More ❯

our web platforms. What You’ll Do Build and maintain modern web apps using React.js , Next.js , JavaScript , HTML5 , and Tailwind CSS Develop backend logic and REST APIs with C# (.NET Core) Work directly with MSSQL databases (queries, schema updates, stored procedures) Deliver secure, high-performance, and maintainable features What You Bring 3+ years of hands-on experience … in full stack development Strong skills in JavaScript , React.js , and Next.js Backend experience with C# 9 , .NET Core , and REST APIs Proficiency with SQL Server (stored procedures, schema management) Comfortable with Tailwind CSS and responsive UI design Experience with Git-based workflows and tools like Azure DevOps Bonus Points For Exposure to Azure cloud services (App Services More ❯

market. Our software integrates with most of the leading investment platforms and back-office systems in the UK. Your Skills/Background: SaaS/Application Software Development, C#/.NET, .NET Core, Persistence Frameworks, SOLID Principles, Web APIs, MS SQLCustomer Experience. Team Leadership, Systems & Processes Leadership. Who we are: We re Sprint Enterprise Technology a small … guide and inspire a cross-functional team of C# and SQL developers. This role is a blend of leadership (50%) and hands-on technical development (50%), requiring expertise in .NET application/system design in a Windows Server 2022/MS SQL Server/IIS environment. This is a fully remote opportunity within the fintech sector. What you ll … best practices and continuous improvement • Manage our GitHub based code repository • Drive innovation, exploring new technologies and approaches to enhance our solutions Where your expertise will lie: • C#/.NET • .NET Core • Persistence Frameworks (Entity Framework, Dapper, etc.) • SOLID Principles • Web APIs • MS SQL Server integration through Stored Procedures • Persistence Frameworks and SQL CLR extensions • SQL More ❯

data contributions, and risk reporting. Collaborate with global teams, align with Head Office on process and governance. Oversee BAU support and manage rota coverage for trading hours. 🔹 Tech Stack .NET (C#, .Net Core, WPF), Entity Framework Angular/AngularJS SQL Server, Oracle, MongoDB Bloomberg API, RMDS, Eikon Microservices, Visual Studio, JetBrains Rider 🔹 Key Skills 10+ years … programming background. Experience in front-office or trading systems. Solid understanding of derivatives, risk (Greeks), and curve construction. Hands-on knowledge of options theory and volatility surfaces. 🔹 Preferred Tech .NET, C#, WPF, Angular Familiar with frameworks (Unity, Prism, etc.) Commodities or interest rate products knowledge a plus 🔹 Environment Hybrid setup (minimum 3 days in office) Shift flexibility: early starts More ❯

data contributions, and risk reporting. Collaborate with global teams, align with Head Office on process and governance. Oversee BAU support and manage rota coverage for trading hours. 🔹 Tech Stack .NET (C#, .Net Core, WPF), Entity Framework Angular/AngularJS SQL Server, Oracle, MongoDB Bloomberg API, RMDS, Eikon Microservices, Visual Studio, JetBrains Rider 🔹 Key Skills 10+ years … programming background. Experience in front-office or trading systems. Solid understanding of derivatives, risk (Greeks), and curve construction. Hands-on knowledge of options theory and volatility surfaces. 🔹 Preferred Tech .NET, C#, WPF, Angular Familiar with frameworks (Unity, Prism, etc.) Commodities or interest rate products knowledge a plus 🔹 Environment Hybrid setup (minimum 3 days in office) Shift flexibility: early starts More ❯

Full Stack Developer .NET, C#, Angular Material, Angular, UI, HTML5, CSS, NgRX, RXJS, .NetCore, SQL, Microservices London – Perm Role Fin-Tech - Portfolio management – £50000 - £80000 Harrington Starr has partnered with a Software Provider that is looking to hire a Senior Software Engineer with FullStack Development experience using Angular and Angular Material and C#, .NET Core to … head of development where you will be responsible for all front to back software development of a major Portfolio Management system. Key Skills: Full Stack Developer with C# and .NET Core backend Excellent knowledge of Angular Development Excellent experience of Angular Material Strong Development building User Interfaces (UI) and some experience of UX design. Experience with NgRx More ❯

Full Stack Developer NET, C#, Angular Material, Angular, UI, HTML5, CSS, NgRX, RXJS, .NetCore, SQL, Microservices London – Perm Role Fin-Tech - Portfolio management – £50000 - £80000 Harrington Starr has partnered with a Software Provider that is looking to hire a Senior Software Engineer with FullStack Development experience using Angular and Angular Material and C#, .NET Core to come … head of development where you will be responsible for all front to back software development of a major Portfolio Management system. Key Skills: Full Stack Developer with C# and .NET Core backend Excellent knowledge of Angular Development Excellent experience of Angular Material Strong Development building User Interfaces (UI) and some experience of UX design. Experience with NgRx More ❯

Hybrid: 2 days/week onsite in Central London High autonomy, greenfield projects, and an inclusive team culture 🔍 What you’ll be doing: Own and evolve backend systems in .NET Core/C# Lead on platform performance, automation, observability, and CI/CD Build infrastructure across AWS and Azure using Terraform and Docker Help introduce Go and … Python into the stack Mentor engineers and drive engineering best practices ⚙️ Tech environment: .NET Core/C#, ASP.NET Core AWS, Azure, Lambda, DynamoDB, Azure DevOps Terraform, Docker, CI/CD pipelines Bonus: Go, Python, Cloudflare, React, TypeScript Ready to shape the future of a modern platform? Apply now More ❯

Hybrid: 2 days/week onsite in Central London High autonomy, greenfield projects, and an inclusive team culture 🔍 What you’ll be doing: Own and evolve backend systems in .NET Core/C# Lead on platform performance, automation, observability, and CI/CD Build infrastructure across AWS and Azure using Terraform and Docker Help introduce Go and … Python into the stack Mentor engineers and drive engineering best practices ⚙️ Tech environment: .NET Core/C#, ASP.NET Core AWS, Azure, Lambda, DynamoDB, Azure DevOps Terraform, Docker, CI/CD pipelines Bonus: Go, Python, Cloudflare, React, TypeScript Ready to shape the future of a modern platform? Apply now More ❯

My client is an instantly recognisable consultancy who require a C# .Net Developer with .Net Core, RESTful web services, microservices and knowledge of building solutions in an Azure Containerised environment to join a business-critical GDS programme for a high profile client Key Requirements: Proven experience as a C# .Net Developer with working knowledge of … a Government Digital Service (GDS) environment Strong knowledge and working use of .Net Core and RESTful web services. Recent experience developing Microservice based solutions Worked on object-oriented design patterns (OOAD etc) and design principles (kiss/solid etc) Prior use of RDBMS, e.g. Oracle, MySQL or Postgres Experience in Test-Driven Development (TDD), unit testing and More ❯

with strategic digital goals. This is an individual contributor role with no direct line management but significant influence over technical decisions and standards. Key Technical Skills Back-End Development: .NET Framework, .NET Core, ASP.NET Core, Node.js, C# Database Management: SQL Server, with additional experience in NoSQL databases (e.g., MongoDB) Cloud Platforms: AWS, Azure, or … GCP (including edge compute, serverless functions, S3) DevOps & CI/CD: Azure DevOps, automated pipelines, infrastructure as code SEO & Performance: Core Web Vitals, metadata structuring, sitemap configuration, crawl budget CMS: Experience with various CMS platforms; headless CMS integration (e.g., Contentful, Sanity, Strapi) Testing: Automated testing (Jest, Mocha, Selenium), TDD, BDD, integration and load testing System Architecture: Designing scalable More ❯

new businesses and seizing energy investment opportunities. Job Summary As a Full Stack Developer, you will be a key contributor to our dynamic development team. With a focus on .NET Core and ReactJS, you will play a crucial role in designing, implementing, and maintaining robust, scalable, and user-friendly DataPortal. This position offers an exciting opportunity to … work on cutting-edge projects and collaborate with cross-functional teams in a fast-paced environment. Key Responsibilities Design and develop scalable, high-performance applications using .NET Core for the backend and React for the frontend. Collaborate with product managers, designers, and other developers to understand project requirements and deliver solutions that meet user needs. Write clean … processes. Qualifications: Bachelor’s or Master’s degree in computer science or a related field. Minimum of 4 years of experience as a Full Stack Developer. Strong proficiency in .NET Core for backend development. Expertise in React for building modern and responsive user interfaces. Solid understanding of web development concepts, including RESTful APIs and asynchronous programming. Experience More ❯

A leading global trading firm is looking for a C# .NET Developer to join its trading systems team. You’ll work across front office, risk, and operations to build and support business-critical systems that handle real-time trade execution, messaging, and integration. This role focuses on developing high-performance services using the .NET framework, integrating with FIX … as RabbitMQ or Kafka. You’ll play a key role in improving trade flow automation and operational efficiency across the front-to-back lifecycle. Key Responsibilities: Design and develop .NET-based services that integrate trading systems using FIX Build and maintain messaging infrastructure using RabbitMQ, Kafka, or similar Develop robust APIs and services for trade capture, enrichment, and routing … optimise CI/CD pipelines (e.g., TFS Build, Azure DevOps) Troubleshoot and resolve production issues in a low-latency trading environment Required Experience: Strong development experience in C# and .NET Core/.NET Framework Hands-on experience integrating FIX protocols (e.g., QuickFIX/n, OnixS) Proficiency with message brokers (RabbitMQ, Kafka, MSMQ, etc.) Knowledge of STP More ❯

A leading global trading firm is looking for a C# .NET Developer to join its trading systems team. You’ll work across front office, risk, and operations to build and support business-critical systems that handle real-time trade execution, messaging, and integration. This role focuses on developing high-performance services using the .NET framework, integrating with FIX … as RabbitMQ or Kafka. You’ll play a key role in improving trade flow automation and operational efficiency across the front-to-back lifecycle. Key Responsibilities: Design and develop .NET-based services that integrate trading systems using FIX Build and maintain messaging infrastructure using RabbitMQ, Kafka, or similar Develop robust APIs and services for trade capture, enrichment, and routing … optimise CI/CD pipelines (e.g., TFS Build, Azure DevOps) Troubleshoot and resolve production issues in a low-latency trading environment Required Experience: Strong development experience in C# and .NET Core/.NET Framework Hands-on experience integrating FIX protocols (e.g., QuickFIX/n, OnixS) Proficiency with message brokers (RabbitMQ, Kafka, MSMQ, etc.) Knowledge of STP More ❯

role is focused on delivering robust, scalable, and high-performance applications across front-end, back-end, and cloud environments. The ideal candidate will have a deep technical foundation in .NET and Azure development, hands-on experience with data-driven applications, and a strong track record of working within agile, enterprise-scale environments. Key Accountabilities: Solution consultation and development in … cloud, and legacy systems. Skills & Requirements: 15+ years of relevant software development experience with a comprehensive full stack profile (front-end, back-end, cloud automation, orchestration). Proficient in .NET and .NET Core (Web, API, Windows, Services). Experienced in Azure platform development including Serverless Computing, Azure Functions, Azure Services, Azure Storage, Logic Apps. Skilled in … practices in the software development lifecycle. Proven experience working in agile teams with a clear understanding of agile principles. If you're a seasoned full stack developer with strong .NET and Azure experience, and you're looking for your next challenge, we’d love to hear from you. Submit your application to learn more. #J-18808-Ljbffr More ❯

Job Title: Full Stack .NET Technical Lead Location: London (Hybrid – 2–3 days onsite/week) Interview Process: 2 technical rounds We’re hiring a hands-on Full Stack .NET Technical Lead (not a people manager) with strong technical leadership and development skills. The ideal candidate will have end-to-end experience in designing, developing, deploying, and maintaining … .NET Core applications with modern front-end tech. Key Requirements Strong experience with .NET Core , C#, Web APIs, and SQL Proficient in React.js , JavaScript, HTML/CSS (must-have) Experience with code reviews , refactoring , branching , and DevOps . Cloud experience with Azure ; app migration from on-prem is a plus Strong understanding of software More ❯

Job Title: Full Stack .NET Technical Lead Location: London (Hybrid – 2–3 days onsite/week) Interview Process: 2 technical rounds We’re hiring a hands-on Full Stack .NET Technical Lead (not a people manager) with strong technical leadership and development skills. The ideal candidate will have end-to-end experience in designing, developing, deploying, and maintaining … .NET Core applications with modern front-end tech. Key Requirements Strong experience with .NET Core , C#, Web APIs, and SQL Proficient in React.js , JavaScript, HTML/CSS (must-have) Experience with code reviews , refactoring , branching , and DevOps . Cloud experience with Azure ; app migration from on-prem is a plus Strong understanding of software More ❯

Senior .NET Developer Location: Central London, hybrid working, 1 day a week onsite. Day rates: £550-£650 (Outside IR35) Duration: 6 months initially with likely extensions Our client are on an exciting greenfield journey to build a brand-new, cloud-native platform. You will work closely with product owners, analysts, and other engineers to shape and build a cutting … from the ground up. You’ll contribute to the full software lifecycle, from design and development to deployment and operation in production. They're building this platform in modern .NET and Azure PaaS. Must-haves: Senior-level experience developing in C#, .NET Core Strong understanding of APIs using ASP.NET, MVC, Web API, etc. Experience working on More ❯

their commitment to innovation, they are actively investing in the modernisation of their technology stack to support growth and long-term capability. The Role We are seeking an experienced .NET Architect to join the technology team of a leading insurance organisation. This is a permanent role with long-term potential, suited to a technically hands-on architect who can … architecture, excellent technical design skills, and the ability to contribute across the software development lifecycle. Key Responsibilities Architect, design, and develop high-quality modules and applications using ASP.NET and .NET Core Lead the technical direction of projects, ensuring scalability, maintainability, and performance Collaborate with stakeholders across business and technology to define solution approaches Integrate third-party systems … to code reviews, technical standards, and Agile development practices Troubleshoot and resolve production issues when required Essential Skills & Experience In-depth expertise in ASP.NET (version 3.1 or higher) and .NET Core Familiarity with insurance domain applications or platforms (London Market experience strongly preferred) Full-stack development experience with a strong command of front-end technologies including React.js More ❯

their commitment to innovation, they are actively investing in the modernisation of their technology stack to support growth and long-term capability. The Role We are seeking an experienced .NET Architect to join the technology team of a leading insurance organisation. This is a permanent role with long-term potential, suited to a technically hands-on architect who can … architecture, excellent technical design skills, and the ability to contribute across the software development lifecycle. Key Responsibilities Architect, design, and develop high-quality modules and applications using ASP.NET and .NET Core Lead the technical direction of projects, ensuring scalability, maintainability, and performance Collaborate with stakeholders across business and technology to define solution approaches Integrate third-party systems … to code reviews, technical standards, and Agile development practices Troubleshoot and resolve production issues when required Essential Skills & Experience In-depth expertise in ASP.NET (version 3.1 or higher) and .NET Core Familiarity with insurance domain applications or platforms (London Market experience strongly preferred) Full-stack development experience with a strong command of front-end technologies including React.js More ❯

APIs, integrating with various 3rd party integrations/APIs. Working in cross specialism SCRUM teams, adopting Agile practices. You’ll have experience using both Backend and Frontend technologies, including: .NET Development, C#, .NET Core and .NET Framework, MVC, Web API HTML (Valid & semantic markup, SEO best practices) CSS JavaScript (React, Next.js, TypeScript, Internationalization/Localization More ❯

APIs, integrating with various 3rd party integrations/APIs. Working in cross specialism SCRUM teams, adopting Agile practices. You’ll have experience using both Backend and Frontend technologies, including: .NET Development, C#, .NET Core and .NET Framework, MVC, Web API HTML (Valid & semantic markup, SEO best practices) CSS JavaScript (React, Next.js, TypeScript, Internationalization/Localization More ❯