126 to 150 of 162 C# Jobs in Central London

that serve both public-facing and internal users. Key Responsibilities Enhance and modernize large .NET systems for performance, reliability, and scalability Lead architecture and development of backend services using C#, ASP.NET, .NET Core Automate infrastructure, CI/CD pipelines, and cloud operations (AWS/Azure) Promote engineering best practices, security, and observability Mentor engineers and foster a culture of continuous … improvement Contribute to technology direction, including adoption of tools like Go and Python What We’re Looking For Deep expertise in C#, .NET Core, ASP.NET Cloud experience with AWS (Lambda, DynamoDB) or Azure + DevOps Proficiency with IaC tools like Terraform Strong grasp of modern dev methodologies and design patterns Exposure to containerization and CI/CD tooling Bonus: Familiarity More ❯

London. The successful Software Developer will join a extremely talented development team and you will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are greenfield projects and allow you to make your own mark on the development process early on.You will be given … in the industry, or experience within it. This is predominantly an office-based role. As well as very competitive salaries, our client offers a comprehensive benefits package. Skills required: C# Worked with the latest version of the .NET platform Database experience - SQL Server WPF Angular, TypeScript Excellent communication skills both written and verbal Knowledge of working with trading platforms Modelling More ❯

contract basis. You'll be working on critical middle and back-office systems that support trading and operations functions. Key Responsibilities Design, develop, and maintain full stack applications using C# backend and React frontend Build and enhance middle and back-office systems supporting fund operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance … solutions for financial data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and More ❯

contract basis. You'll be working on critical middle and back-office systems that support trading and operations functions. Key Responsibilities Design, develop, and maintain full stack applications using C# backend and React frontend Build and enhance middle and back-office systems supporting fund operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance … solutions for financial data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and More ❯

.NET Developer, C#, WPF - London (Tech stack: .NET Developer, C#, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Scrum, Kanban, Programmer, Engineer, Architect, .NET Developer) In just over three years our client's community has grown to over 150 million people. They enable their users to share photos and videos on a variety of social networking services such as Facebook and … the development of a revolutionary new product that will have a dramatic impact on the company's growth. .NET Developer applicants should have a skill set that includes: .NET, C#, WPF and SQL Server. Our client will give you the opportunity to work on enterprise level software development projects and provide training into: .NET 9, MongoDB, MVVM, Prism, continuous integration More ❯

for your next move? We’re seeking a Senior Power Platform Developer to join a leading Microsoft Partner expanding its Power Platform capability. This hands-on role focuses on C#/.NET plugin development, Dataverse SDK, and Azure-integrated solutions, collaborating with Solution Architects to deliver scalable, enterprise-ready Power Platform applications that make real business impact. Key Responsibilities: Develop … advanced Dataverse plugins and custom workflows using C#/.NET. Build client-side logic with TypeScript/JavaScript and PCF controls. Deliver secure, scalable Azure integrations (Function Apps, Logic Apps, APIM). Collaborate on solution design, lead technical delivery, and mentor team members. About You: Proven experience with Dataverse/Dynamics 365 plugin development. Experience with Azure integrations (Function Apps More ❯

for your next move? We’re seeking a Senior Power Platform Developer to join a leading Microsoft Partner expanding its Power Platform capability. This hands-on role focuses on C#/.NET plugin development, Dataverse SDK, and Azure-integrated solutions, collaborating with Solution Architects to deliver scalable, enterprise-ready Power Platform applications that make real business impact. Key Responsibilities: Develop … advanced Dataverse plugins and custom workflows using C#/.NET. Build client-side logic with TypeScript/JavaScript and PCF controls. Deliver secure, scalable Azure integrations (Function Apps, Logic Apps, APIM). Collaborate on solution design, lead technical delivery, and mentor team members. About You: Proven experience with Dataverse/Dynamics 365 plugin development. Experience with Azure integrations (Function Apps More ❯

My Financial Services client is seeking to recruit a C# .NET Developer on an initial 6 month contract based in London. It is hybrid and will require 3x days onsite per week. Essential: Strong background in C# programming and .Net technologies Strong Windows background Strong experience with relational databases and SQL Proven experience in continuous improvement of areas of focus … into application and operational requirements Good work ethic, with a focus on meeting deadlines and objectives Along with the application development, this role will also include supporting the existing C# and .NET applications. Strong hands-on skills for C# Windows applications is required. More ❯

Software Developer Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £50,000 - £60,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing from Back to Front Office trading systems. Key Responsibilities: Design, develop and maintain Front Office systems written … in C#, ,NET Collaborate closely with a variety of internal and external stakeholders around the globe from product managers to traders Developing with the existing systems technologies and integration with cloud based architecture (azure) Strong business knowledge with Post Trade systems Key Benefits: Competitive base salary up to £60,000 based on previous experience and domain knowledge Hybrid working structure More ❯

Software Engineer C#, .NET Core, NUnit, Postgres, AWS, Azure, Kubernetes, Docker. City of London, United Kingdom Perm Role: £65,000 - £80,000 Harrington Starr has partnered with a Global Financial Technology company, and they are looking to hire a Mid - Senior C#, .Net Software Engineer, with experience working with highly scalable and performant systems. This is a great opportunity to … base salary up to £80,000 based on experience. Funded additional training and development and certifications. Excellent bonus structure. What skills, experience and qualifications required: Strong commercial experience with C#, .NET Core. Experience working with cloud technology (Azure/AWS). Strong commercial experience working with highly scalable and high-performance systems. Excellent communication skills. Full, unrestricted right to work … in the UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a Mid - Senior Software Engineer, with strong C#, .Net experience, having a direct impact from the get-go! For any additional questions, please contact me via LinkedIn or through email - ollie.bluck@harringtonstarr.com. If you feel this role is More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

intelligence platform - spanning OBD diagnostics, API-based vehicle integrations, and real-time energy data streams. The Role We’re looking for a skilled Backend Developer with strong experience in C# and the .NET ecosystem to help us scale and evolve our core data and API infrastructure. You’ll play a central role in designing, building, and optimising services that power … scalability, and data integrity. Help evolve our internal tools and services to support ClearWatt’s growing product suite. What We’re Looking For 2+ years of professional experience with C# and .NET Core . Experience building REST APIs or microservices at scale. Familiarity with cloud-native design and Azure services . Understanding of async programming, dependency injection, and distributed systems. More ❯

intelligence platform - spanning OBD diagnostics, API-based vehicle integrations, and real-time energy data streams. The Role We’re looking for a skilled Backend Developer with strong experience in C# and the .NET ecosystem to help us scale and evolve our core data and API infrastructure. You’ll play a central role in designing, building, and optimising services that power … scalability, and data integrity. Help evolve our internal tools and services to support ClearWatt’s growing product suite. What We’re Looking For 2+ years of professional experience with C# and .NET Core . Experience building REST APIs or microservices at scale. Familiarity with cloud-native design and Azure services . Understanding of async programming, dependency injection, and distributed systems. More ❯

.NET Developer, C#, WPF - Asset Management - London (Tech stack: .NET Developer, .NET 9, C#, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Scrum, Kanban, Programmer, Engineer, Architect, .NET Developer) Founded in 1930, our client is a leading investment manager with offices in Europe, Asia and North America. They manage over £120 billion across all asset classes and employ over 2000 people … around the world. Working in tandem with Microsoft they are developing revolutionary .NET/C# software applications that have attracted much attention in the trade press. We are seeking two .NET Developer to work on these exciting Greenfield enterprise level .NET/C# projects. .NET Developer applicants should have strong knowledge of: .NET, C#, WPF and Azure SQL. This is More ❯

.NET Developer, C#, WPF - Mobile Telecommunications - London (Tech stack: .NET Developer, .NET 9, C#, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Established in the early 1990s and listed on the London Stock Exchange our client is an instantly recognizable brand within the mobile telecommunications arena. They are widely recognized as innovators within the market and … their brand beyond mobile with the launch of several new products. As such they are looking to recruit 6 .NET Developer to help design and develop the .NET/C# software applications that will be the backbone of this exciting new generation of products and services. The ideal .NET Developer candidates will have a skill set that encompasses: .NET, C# … SQL, MVVM, Prism, continuous integration, dependency injection, TDD and Agile (Scrum/Kanban). This is a truly exciting opportunity to work on complex enterprise level, Greenfield .NET/C# projects and to develop revolutionary products that will be the envy of the industry. Location: London, UK/Remote Working Salary: £40,000 - £60,000 + Bonus + Pension + More ❯

Senior Software Engineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join their growing team! This role provides the perfect opportunity to launch your career in a … Pension scheme. Hybrid working in Central London. Excellent salary base of up to £120,000 based on experience. Key skills, experience and qualifications required: Excellent knowledge and experience with C#, .NET and React.. Experience with cloud technology – specifically AWS. Knowledge of TDD/BDD. Excellent communication skills. Unrestricted right to work in the UK. This role offers hybrid working, with … an office location based in the City of London. This role will suit a Senior Software Engineer, with expert C#, .NET experience and commercial use of React having a direct impact from the get-go. Apply below and if you have any questions, please contact me via LinkedIn or email – ollie.bluck@harringtonstarr.com. More ❯

Senior Software Engineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join their growing team! This role provides the perfect opportunity to launch your career in a … Pension scheme. Hybrid working in Central London. Excellent salary base of up to £120,000 based on experience. Key skills, experience and qualifications required: Excellent knowledge and experience with C#, .NET and React.. Experience with cloud technology – specifically AWS. Knowledge of TDD/BDD. Excellent communication skills. Unrestricted right to work in the UK. This role offers hybrid working, with … an office location based in the City of London. This role will suit a Senior Software Engineer, with expert C#, .NET experience and commercial use of React having a direct impact from the get-go. Apply below and if you have any questions, please contact me via LinkedIn or email – ollie.bluck@harringtonstarr.com. More ❯

Microsoft 365 & Graph API Integration Enable agents to access and reason over content in: SharePoint, OneDrive, Teams, Outlook, and Planner Architect multi-step agent workflows using: Semantic Kernel SDK (C# or Python) Azure OpenAI (GPT-4, function calling, chat completion) Planner and Kernel Memory APIs for reasoning and memory RAG pipelines grounded in enterprise data via Azure AI Search Enterprise … in: Copilot Studio, Power Automate, Power Apps, custom connectors SharePoint Development Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel Solid programming skills in Python and/or C# LangChain, AutoGen, or similar orchestration frameworks Azure AI Search, Form Recognizer, and Language Services GitHub Actions, CI/CD, and DevSecOps practices Responsible AI frameworks (e.g., NIST AI RMF, ISO More ❯

to continuous improvement WHAT YOU’LL BRING Strong experience with Service Fabric and Kubernetes Proven experience architecting and scaling B2B SaaS platforms Strong full-stack technical expertise – especially across C#, JavaScript, and React Experience integrating with APIs and identity platforms (e.g. Microsoft Entra ID/Azure AD) Solid understanding of cloud infrastructure – ideally Azure and Service Fabric A collaborative mindset … and client delivery A pragmatic, hands-on approach to problem-solving and decision-making Background in IAM or SSO is a bonus OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape the More ❯

to continuous improvement WHAT YOU’LL BRING Strong experience with Service Fabric and Kubernetes Proven experience architecting and scaling B2B SaaS platforms Strong full-stack technical expertise – especially across C#, JavaScript, and React Experience integrating with APIs and identity platforms (e.g. Microsoft Entra ID/Azure AD) Solid understanding of cloud infrastructure – ideally Azure and Service Fabric A collaborative mindset … and client delivery A pragmatic, hands-on approach to problem-solving and decision-making Background in IAM or SSO is a bonus OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape the More ❯

Managers. Title: Test Automation Engineer - QA Company: Consultancy - Financial Location: London Hybrid (often 3 days a week in office) Salary: £50,000-£65,000 + benefits Tech essentials : Backend (C#/Java/Python) SQL, Specflow/BDD Nice to have: CI/CD pipes, GitHub Actions, YAML, Powershell Interview process: 1 stage remote video interview Why should you be … endless and they are active looking for future leaders Why they’ll be interested in you - You have solid Programming experience, with a keen interest in Software Quality & Testing C# or Python or Java knowledge needed You probably have a relevant degree at 2:1 level or above You may have 1-3 years commercial experience, but they're open More ❯

Managers. Title: Test Automation Engineer - QA Company: Consultancy - Financial Location: London Hybrid (often 3 days a week in office) Salary: £50,000-£65,000 + benefits Tech essentials : Backend (C#/Java/Python) SQL, Specflow/BDD Nice to have: CI/CD pipes, GitHub Actions, YAML, Powershell Interview process: 1 stage remote video interview Why should you be … endless and they are active looking for future leaders Why they’ll be interested in you - You have solid Programming experience, with a keen interest in Software Quality & Testing C# or Python or Java knowledge needed You probably have a relevant degree at 2:1 level or above You may have 1-3 years commercial experience, but they're open More ❯

and data pipelines. A background in architecture is welcome, but a love for clean, elegant code is essential. Key Responsibilities Design and develop custom tools and automation scripts using C# , Python , and JavaScript . Build integrations with ACC/BIM360 APIs , streamlining collaboration and data management. Develop and maintain Dynamo scripts, Revit add-ins, and other computational workflows. Collaborate with … BIM, automation, and data visualization. Present your work clearly — both to technical teams and to people who think “API” is a new furniture brand. Qualifications Strong programming experience in C# , Python , and/or JavaScript . Working knowledge of Autodesk Revit , Dynamo , and the ACC/BIM360 API ecosystem. Bachelor’s degree in Architecture , Computer Science , Engineering , or an equivalent More ❯

and data pipelines. A background in architecture is welcome, but a love for clean, elegant code is essential. Key Responsibilities Design and develop custom tools and automation scripts using C# , Python , and JavaScript . Build integrations with ACC/BIM360 APIs , streamlining collaboration and data management. Develop and maintain Dynamo scripts, Revit add-ins, and other computational workflows. Collaborate with … BIM, automation, and data visualization. Present your work clearly — both to technical teams and to people who think “API” is a new furniture brand. Qualifications Strong programming experience in C# , Python , and/or JavaScript . Working knowledge of Autodesk Revit , Dynamo , and the ACC/BIM360 API ecosystem. Bachelor’s degree in Architecture , Computer Science , Engineering , or an equivalent More ❯