626 to 650 of 1,003 C# Jobs in London

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, hands-on … and fit 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 fine-tune CI/CD (TeamCity 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, hands-on … and fit 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 fine-tune CI/CD (TeamCity 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, hands-on … and fit 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 fine-tune CI/CD (TeamCity More ❯

to-end web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based … platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible … . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT More ❯

to-end web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based … platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible … . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT More ❯

to-end web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based … platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible … . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT More ❯

to-end web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based … platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible … . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT More ❯

Remote roles for award-winning specialist agricultural software company. Delivering sustainable farming data-driven technology solutions. Degree educated with proven track record as C#/.Net Back-End Developer. Remote-Friendly Software Development Opportunity in Agricultural Technology Join an award-winning agricultural analytics software company at the forefront of sustainable technology. We're seeking exceptional Back-End Developers who can … Commercial Experience as 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 Structured More ❯

impact, we'd love to hear from you. What you’ll do Provide technical leadership and direction across multiple projects. Design, architect, and implement high-performance, scalable solutions in C#/.NET. Ensure architectural consistency and modern engineering best practices. Collaborate cross-functionally with Sales, Product, Research, QA, and Professional Services. Mentor and coach developers, continuously raising the technical bar. … and QA engineers. What you’ll bring Bachelor’s degree in Computer Science or related STEM field (or equivalent experience). 10+ years of hands-on experience developing with C#/.NET in production environments. Strong command of SQL and relational database design. Deep understanding of software engineering principles and architecture patterns. Excellent written and verbal communication skills. Experience mentoring More ❯

impact, we'd love to hear from you. What you’ll do Provide technical leadership and direction across multiple projects. Design, architect, and implement high-performance, scalable solutions in C#/.NET. Ensure architectural consistency and modern engineering best practices. Collaborate cross-functionally with Sales, Product, Research, QA, and Professional Services. Mentor and coach developers, continuously raising the technical bar. … and QA engineers. What you’ll bring Bachelor’s degree in Computer Science or related STEM field (or equivalent experience). 10+ years of hands-on experience developing with C#/.NET in production environments. Strong command of SQL and relational database design. Deep understanding of software engineering principles and architecture patterns. Excellent written and verbal communication skills. Experience mentoring More ❯

impact, we'd love to hear from you. What you’ll do Provide technical leadership and direction across multiple projects. Design, architect, and implement high-performance, scalable solutions in C#/.NET. Ensure architectural consistency and modern engineering best practices. Collaborate cross-functionally with Sales, Product, Research, QA, and Professional Services. Mentor and coach developers, continuously raising the technical bar. … and QA engineers. What you’ll bring Bachelor’s degree in Computer Science or related STEM field (or equivalent experience). 10+ years of hands-on experience developing with C#/.NET in production environments. Strong command of SQL and relational database design. Deep understanding of software engineering principles and architecture patterns. Excellent written and verbal communication skills. Experience mentoring More ❯

impact, we'd love to hear from you. What you’ll do Provide technical leadership and direction across multiple projects. Design, architect, and implement high-performance, scalable solutions in C#/.NET. Ensure architectural consistency and modern engineering best practices. Collaborate cross-functionally with Sales, Product, Research, QA, and Professional Services. Mentor and coach developers, continuously raising the technical bar. … and QA engineers. What you’ll bring Bachelor’s degree in Computer Science or related STEM field (or equivalent experience). 10+ years of hands-on experience developing with C#/.NET in production environments. Strong command of SQL and relational database design. Deep understanding of software engineering principles and architecture patterns. Excellent written and verbal communication skills. Experience mentoring More ❯

of old and new our core systems range from a WinForms app to an in-house distributed data processing pipeline. Some of the core technologies that we utilise are: C# .Net Web Services SQL Server (Including T-SQL) Angular (with Typescript) RabbitMQ/Kafka Various Azure Features (App Services, VMs, Config etc...) Git Snowflake Nuget (Producing and Consuming)Azure DevOps … developments is maintained. BACKGROUND/EXPERIENCE Knowledge of the design, development and implementation of software solutions. Full stack development experience in particular the Microsoft stack ,including .NET languages e.g. C# and a strong understanding of OO principles. Knowledge of relational database systems and SQL. Experience working with APIs. COMPETENCIES AND PERSONAL SKILLS Questioning, analytic skills with attention to detail. Solution More ❯

of old and new our core systems range from a WinForms app to an in-house distributed data processing pipeline. Some of the core technologies that we utilise are: C# .Net Web Services SQL Server (Including T-SQL) Angular (with Typescript) RabbitMQ/Kafka Various Azure Features (App Services, VMs, Config etc...) Git Snowflake Nuget (Producing and Consuming)Azure DevOps … developments is maintained. BACKGROUND/EXPERIENCE Knowledge of the design, development and implementation of software solutions. Full stack development experience in particular the Microsoft stack ,including .NET languages e.g. C# and a strong understanding of OO principles. Knowledge of relational database systems and SQL. Experience working with APIs. COMPETENCIES AND PERSONAL SKILLS Questioning, analytic skills with attention to detail. Solution More ❯

of old and new our core systems range from a WinForms app to an in-house distributed data processing pipeline. Some of the core technologies that we utilise are: C# .Net Web Services SQL Server (Including T-SQL) Angular (with Typescript) RabbitMQ/Kafka Various Azure Features (App Services, VMs, Config etc...) Git Snowflake Nuget (Producing and Consuming)Azure DevOps … developments is maintained. BACKGROUND/EXPERIENCE Knowledge of the design, development and implementation of software solutions. Full stack development experience in particular the Microsoft stack ,including .NET languages e.g. C# and a strong understanding of OO principles. Knowledge of relational database systems and SQL. Experience working with APIs. COMPETENCIES AND PERSONAL SKILLS Questioning, analytic skills with attention to detail. Solution More ❯

of old and new our core systems range from a WinForms app to an in-house distributed data processing pipeline. Some of the core technologies that we utilise are: C# .Net Web Services SQL Server (Including T-SQL) Angular (with Typescript) RabbitMQ/Kafka Various Azure Features (App Services, VMs, Config etc...) Git Snowflake Nuget (Producing and Consuming)Azure DevOps … developments is maintained. BACKGROUND/EXPERIENCE Knowledge of the design, development and implementation of software solutions. Full stack development experience in particular the Microsoft stack ,including .NET languages e.g. C# and a strong understanding of OO principles. Knowledge of relational database systems and SQL. Experience working with APIs. COMPETENCIES AND PERSONAL SKILLS Questioning, analytic skills with attention to detail. Solution More ❯

reporting. Implement and maintain real-time and batch interfaces for trade data. Participate in the full software development lifecycle, including testing, deployment, and support. Strong programming skills in Java , C# , or Python . Experience with FX trading systems , ideally in investment banking or financial services. Solid understanding of trade lifecycle , pricing , and risk management . Experience with SQL databases and More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage, and delight customers by delivering inbound experiences that are relevant … helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position to make decisions about what should be created, and how it should be built. Within their setup those decisions are … learning. These roles would be suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, Linux, C# or Java; which might have been acquired as part of your degree course or through a placement year in industry. At the center of our client's culture is freedom More ❯

Software Developer/Engineer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a Software Developer you'll collaborate with a team of technologists and finance professionals to develop … minimum 2.1 in a STEM discipline from a top tier university (i.e. Russel Group or top 100 global university), backed by A grades at A-level You have advanced C# .Net programming skills including .Net Core (will also consider Java, Python or C++ background if happy to use C# going forward) You have a strong knowledge of SQL databases You … s ambassadorship with AMOS Bursary Various other social groups including sports teams Private healthcare and wellness activities Apply now to find out more about this Software Developer/Engineer (C# .Net SQL) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose More ❯

across complex systems. You’ll play a key role in ensuring scalability, stability, and reliability of business-critical application Key requirements: Proven experience in UI automation using Selenium with C#/.NET. Strong background in load and performance testing with JMeter. Skilled in designing, executing, and analyzing performance test cases. Proficient in Zephyr for Jira for test management and defect More ❯

across complex systems. You’ll play a key role in ensuring scalability, stability, and reliability of business-critical application Key requirements: Proven experience in UI automation using Selenium with C#/.NET. Strong background in load and performance testing with JMeter. Skilled in designing, executing, and analyzing performance test cases. Proficient in Zephyr for Jira for test management and defect More ❯

system testing and integration + Expertise in burst-mode transceiver testing. + Good understanding of equalisation methods (CTLE, FFE, DFE) to improve high-speed link performance. + Python, C++, C# + High-speed PCB design Full details are available. Please don't hesitate to get in touch with me to learn more. More ❯

system testing and integration + Expertise in burst-mode transceiver testing. + Good understanding of equalisation methods (CTLE, FFE, DFE) to improve high-speed link performance. + Python, C++, C# + High-speed PCB design Full details are available. Please don't hesitate to get in touch with me to learn more. JBRP1_UKTJ More ❯

system testing and integration + Expertise in burst-mode transceiver testing. + Good understanding of equalisation methods (CTLE, FFE, DFE) to improve high-speed link performance. + Python, C++, C# + High-speed PCB design Full details are available. Please don't hesitate to get in touch with me to learn more. JBRP1_UKTJ More ❯

scripts, and exit reports. Familiarity with Agile testing methodologies. Solid defect management and test documentation skills. Hands-on experience testing Digital Experience Platforms (e.g., Sitecore). Working knowledge of C#, Selenium, SpecFlow (Gherkin), XUnit/NUnit, Git, Visual Studio. Experience converting manual tests to automated scripts. Services offered by Computappoint Limited are those of an Employment Business and/or More ❯