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Top .NET Developer Jobs in London

21+ Job Results
18 Hours 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.
6 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.
8 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.
16 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.
16 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.
17 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.
22 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.
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.

Featured Jobs

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.
10 Days Ago
London, UK
Remote
2,135 Employees
Senior level
2,135 Employees
Senior level
Information Technology • Consulting
The Lead .NET Full-Stack Engineer will lead a development team, establish technical processes, communicate with clients and stakeholders, ensure technical implementation of product requirements, and mentor team members. The role focuses on developing a new software solution using the .NET framework, Azure Cloud, and maintaining high-quality application design.
11 Days Ago
London, UK
2,038 Employees
Senior level
2,038 Employees
Senior level
Information Technology • Software
The Engineering Innovation AI Lead will lead a team of software engineers to develop and support AI and data applications for investment management, collaborating with cross-functional teams and ensuring high-quality software solutions while maintaining a focus on system security and agile methodologies.
11 Days Ago
London, UK
57,000 Employees
Senior level
57,000 Employees
Senior level
eCommerce • Fintech • Information Technology • Payments • Software
The Senior .NET UI/UX Developer will analyze user requirements, design solutions, implement new screens and components, adhere to design and style guides, and focus on quality code delivery, all while collaborating in an agile team environment.
12 Days Ago
London, UK
Remote
150 Employees
Senior level
150 Employees
Senior level
Artificial Intelligence • Computer Vision • eCommerce • Fintech • Machine Learning
As a Senior Backend Engineer, you will develop APIs for document verification, build applications in containerized and serverless environments, and collaborate with cross-functional teams to optimize and enhance systems. You'll utilize .NET and C# for building high-performance services while contributing to product lifecycle and technical decision-making.
12 Days Ago
London, UK
1,005 Employees
Senior level
1,005 Employees
Senior level
HR Tech • Productivity
As a Senior Site Reliability Engineer, you will support the Payroll team by enhancing the platform's functionality, improving infrastructure performance, driving deployment speed, monitoring system health, and collaborating with various teams to ensure security and efficiency. Your role will involve hands-on development, especially in .NET, alongside cloud infrastructure management.
16 Days Ago
London, UK
452 Employees
Senior level
452 Employees
Senior level
Cloud • Software • Consulting
Ascent is looking for a highly motivated Senior VB6 Developer with 5 years of experience in software development. The role involves supporting and enhancing logistics products for global clients, contributing to design and development decisions, collaborating with the product owner, and managing code reviews.
17 Days Ago
London, UK
14,000 Employees
Senior level
14,000 Employees
Senior level
Fintech • Financial Services
Develop and implement software solutions for a financial software platform, collaborating with the development team, ensuring quality and adherence to standards, and participating in planning and execution of objectives.
78 Employees
Senior level
eCommerce • Consulting
The Senior Software Engineer will work on a greenfield project using TypeScript, React Native, and Azure as part of a cross-functional delivery team. Responsibilities include designing solutions, writing production-quality code, mentoring peers, and engaging with clients to ensure project success.
18 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.
20 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.
23 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.
24 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.
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