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Top .NET Developer Jobs in London

19+ Job Results
3 Days Ago
London, UK
6,000 Employees
Senior level
6,000 Employees
Senior level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
As a Senior .NET Developer at Capco, you will design and develop robust data pipelines, build distributed applications, and support Capital Markets projects. You will collaborate with clients to create solutions, adhere to engineering best practices, and contribute to cloud-based developments while ensuring high performance and maintainability in the financial services sector.
3 Days Ago
London, UK
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer at Smartcat, you will design, develop, and deploy scalable backend services and APIs, optimize performance, and collaborate with various teams. You'll troubleshoot production issues and actively engage in code reviews and knowledge sharing.
7 Days Ago
London, UK
Remote
2,780 Employees
Senior level
2,780 Employees
Senior level
Cloud • Insurance • Payments • Software • App development • Big Data Analytics
As an Application Architect, you will provide architectural design, technical guidance, and collaborate with software engineers on migrating to a microservices architecture. You'll ensure software is maintainable and efficient while creating standards and documentation, participating in code reviews, and mentoring developers.
13 Days Ago
London, UK
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer, you will design and implement scalable backend services and APIs, optimize performance and security, and troubleshoot production issues. You'll collaborate with cross-functional teams and participate in code reviews while ensuring the backend services meet customer needs.
15 Days Ago
London, UK
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer, you will enhance the platform by designing, developing, and deploying backend services and APIs, ensuring optimal performance and security while collaborating across teams. Your role involves troubleshooting production issues and participating in code reviews.
17 Days Ago
London, UK
6,000 Employees
Senior level
6,000 Employees
Senior level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
The Principal .NET Developer will work on enterprise-level solutions in the Capital Markets environment, focusing on cloud-based platforms, Agile practices, and collaboration with clients to deliver efficient, high-performance applications. Responsibilities include designing data pipelines, developing scalable services, and ensuring code quality through Test-Driven Development.
24 Days Ago
London, UK
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
Lead and improve Smartcat's system code and architecture to enhance efficiency, performance, and innovation. Responsibilities include enhancing system scalability, optimizing the codebase, and decomposing monolithic architecture into microservices, while ensuring security best practices.
19 Minutes Ago
London, UK
Hybrid
85 Employees
Mid level
85 Employees
Mid level
Information Technology
As a C#/.NET Developer, you will collaborate with Frontend and QA engineers to design, build, and maintain high-quality web applications and serverless functions. You'll work with various data storages and contribute to architectural direction and continuous improvements in a collaborative environment.

Featured Jobs

2 Days Ago
London, UK
Remote
2,135 Employees
Mid level
2,135 Employees
Mid level
Information Technology • Consulting
Design, build, and maintain a new software solution from scratch using the .NET framework and Azure Cloud. The engineer will be responsible for full-stack development, code reviews, automated business processes, and participation in Agile processes. They will ensure high-quality app design and facilitate communication with clients and stakeholders.
5 Days Ago
London, UK
245 Employees
Senior level
245 Employees
Senior level
Financial Services
As a Senior Back End Engineer at Flagstone, you will deliver and maintain high-quality cloud-based systems using C#, .Net, and Azure technologies. You will work collaboratively within an Agile team, focusing on software architecture, API design, and enhancing engineering processes while mentoring junior engineers.
5 Days Ago
London, UK
Remote
4,900 Employees
Senior level
4,900 Employees
Senior level
Fintech • Payments
The Senior .NET Software Development Engineer will work in an Agile environment to develop and maintain the WEX Health Cloud solution. Responsibilities include software design and architecture, code reviews, troubleshooting, and mentoring. The role involves collaboration across teams, managing performance improvements, and implementing security best practices.
5 Days Ago
London, UK
Remote
4,900 Employees
Senior level
4,900 Employees
Senior level
Fintech • Payments
As a Senior .NET Developer, you will design and analyze software projects, solve customer problems, and support software development projects. Your responsibilities include software planning, development, and testing, ensuring adherence to standards while enhancing application architecture and collaboration with various stakeholders.
6 Days Ago
London, UK
Remote
4,900 Employees
Senior level
4,900 Employees
Senior level
Fintech • Payments
As a .NET Development Engineer at WEX, you will design and analyze software projects, ensuring high performance, scalability, and supportability. Your responsibilities include software development, testing, resolving issues, and collaborating with teams on architecture and design, while adhering to security best practices.
7 Days Ago
London, UK
Remote
80 Employees
Mid level
80 Employees
Mid level
Information Technology • Consulting
The role involves developing and maintaining applications using C# within the .NET ecosystem, leveraging Azure services for cloud solutions, and implementing CI/CD pipelines with Azure DevOps. The developer will work independently on complex codebases, automate tasks with PowerShell, and ensure code quality and documentation.
65 Employees
Senior level
Artificial Intelligence • Software • Automation
As a Lead/Senior Software Engineer, you will drive the evolution of Mimica Recorder, developing new features for capturing user interactions, debugging issues in Windows environments, optimizing performance, and mentoring team members while ensuring adherence to engineering best practices.
65 Employees
Senior level
Artificial Intelligence • Software • Automation
You will define the testing culture, transform the release cycle for faster code shipping, and own the QA process for the Mimica Recorder. Your role includes enhancing automation frameworks, defining test strategies, executing automated scripts, and mentoring other engineers on best practices.
16 Days Ago
London, UK
Remote
1,380 Employees
Senior level
1,380 Employees
Senior level
Software • Consulting
The Senior Backend Software Developer designs and develops backend services and APIs using .NET and C#. Responsibilities include integrating systems, ensuring performance, and implementing healthcare data standards like HL7 and FHIR. The role also involves mentoring junior developers and optimizing existing systems while maintaining documentation and best practices in software development.
20 Days Ago
London, UK
Remote
451 Employees
Entry level
451 Employees
Entry level
Consulting
As a Backend .Net Developer, you will build software using the .NET framework, create applications from scratch, configure systems, and provide user support. Your role involves writing functional code, collaborating with teams, and ensuring software design and architecture align with user needs.
25 Days Ago
London, UK
Remote
4,900 Employees
Senior level
4,900 Employees
Senior level
Fintech • Payments
The Senior C#.NET Developer will be responsible for coding, debugging, and improving cloud-deployed software applications. They will participate in SCRUM, collaborate with team members and stakeholders, and ensure quality through testing and peer reviews. The role involves continuous improvement and making tech recommendations.
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