851 to 875 of 988 C# Jobs in London

Founding C# Engineer - Cybersecurity - Seed-Stage Start-Up Join an early-stage cybersecurity start-up on a mission to transform how modern organisations detect and respond to threats across cloud and enterprise systems. They’re already working with forward-thinking customers - and now we’re hiring exceptional engineers to help build the future of security from the ground up. Why … CI/CD, scalable cloud design Move fast, deploy frequently, and focus on customer value over bureaucracy About You 3+ years’ experience building backend systems at scale Strong in C#, Python , Go , Java or similar backend languages Familiar with cloud platforms (AWS, GCP, or Azure) Pragmatic engineer who values both speed and quality Excited by cybersecurity - no prior experience needed … able to collaborate in-person regularly This is a unique opportunity to join at seed stage , own core systems, and help define how modern security platforms are built. Founding C# Engineer - Cybersecurity - Seed-Stage Start-Up More ❯

Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package I m currently partnered with a leading trading organisation that s looking for a Lead Developer to take ownership of technical direction, mentor a talented team, and deliver high-quality, scalable solutions. As Lead Developer, you ll be responsible for: Defining and leading the technical vision … an inclusive, high-performing team Driving best practice in architecture, code quality, and modern development approaches Delivering robust, test-driven software solutions using the latest tools and methodologies NET (C#), SQL Server, SSIS/SSAS, T-SQL Experience of data engineering, ETL/ELT pipelines, Azure services (Data Factory, Synapse, Data Lake) Exposure with React/Angular/TypeScript Knowledge … opportunities This role offers a genuine chance to step into a leadership position while staying close to the tech, making an impact on both people and projects. Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package More ❯

high performance code, proudly branding themselves 97% tech-driven and 'more like a software house' than a bank. Although they work with a range of technologies - C Java/C# - candidates with any OO experience will be considered. This is an entirely UK-based fund and is one of the best performing systematic prop funds over the last 10 years. … very rare advantage. Position: They are seeking several strong developers to join the EU development team based in London. With experience developing in OO languages [C++ or Java or C#] you will work on one of the core trading systems. While you need NO financial knowledge, you should be keen to learn. This role is business facing; working with traders … techniques on how to improve trading algorithms and systems, as well as improving performance on the current system will be crucial. Required: Excellent OO knowledge [C++/Java/C#] Degree (or relevant qualification) - preferably Computer Science or numerate subject Desire and ability to learn more, particularly about financial markets Commercially aware, priorities in business context Strong team-oriented attitude More ❯

and grow your career. What You’ll Be Doing Automation Testing Develop, maintain, and execute automated test scripts using UI automation tools (preferably Selenium). Focus on programming in C# (preferred), though experience in Python, Java, or other languages is acceptable Collaborate with developers to integrate automated tests into the development process and CI/CD pipelines. Manual Testing Conduct … with UI automation tools (preferably Selenium). Experience creating test plans and driving quality assurance as the sole QA engineer in an agile team. 2 years of programming experience (C# preferred, but Python/Java/other languages are acceptable). Solid background in manual testing. Inquisitive mindset with a passion for staying informed about test automation best practices and … trends. Experience with version control systems (Git). Preferred Skills: Basic SQL knowledge. Experience with BDD frameworks (preferably SpecFlow, Cucumber, etc.), with a strong preference for C# with Selenium, given the integration ease with our project. Familiarity with design patterns and best practices in C#. Bonus Points For : Exposure to CI/CD pipelines (GitHub Actions, Azure, Jenkins, etc.). More ❯

Stack Engineers – Master Data Management (MDM) System 1x Senior Full Stack Engineer – UI-focused – Master Data Management (MDM) System Key Responsibilities Design, develop, and deploy cloud-native applications using C# and Angular (Microfrontends) Architect scalable, high-load, and concurrent systems Own full infrastructure on Azure (App Gateway, API Management, Container Apps, ServiceBus/EventHub, SQL, BLOB Storage, CDN, OpenAI) Implement … quality and security with SonarQube, Mend, Aqua Trivy Hands-on coding, problem-solving, and technical decision-making Participate in on-call support as required Skills Proven full-stack experience (C#, Angular/MFEs, cloud-native applications) Experience with containerized workloads and orchestration Proficiency in IaC tools (Bicep preferred; Terraform, Pulumi, CDK acceptable) End-to-end development experience: frontend, backend, infrastructure 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 ❯

A successful, mid-sized British fund looking for a C#/.NET developer with hands-on experience of professional software development to join their head office in London. In this role, you'll draw on your strong technical skills to develop, maintain and support software for the front office. You'll join a very small, agile team where you will … To be successful, you'll enjoy facing off to the business and have a proactive approach. Skills and Experience Required Around 6-10+ years of professional experience Strong C# and .NET capabilities Degree in Computer Science, Maths, Physics (or similar) from a top-tier university Self-starter, capable of remaining calm and excelling in the fast-paced world of 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 ❯

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 ❯

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 ❯

planning for servers, databases, and storage, scaling resources before issues occur. Identify systemic patterns causing downtime and implement fixes at scale. 3. Automation & Tooling Build scripts and automation (PowerShell, C#, Azure Functions, Logic Apps) to detect and remediate common application or infrastructure issues. Automate environment health checks and reporting. Develop self-healing routines for recurring problems. 4. Monitoring & Reporting Implement … operations for enterprise SaaS. Proven track record in incident resolution and root cause analysis. Experience working with both multi-tenant and single-tenant cloud architectures. Strong background in supporting C#/.NET Core/MVC web applications with SQL Server backends and Azure Blob Storage. Advanced Azure diagnostics (Application Insights, Log Analytics, Kusto Query Language). Proficient in SQL for … DB, Blob Storage, scaling strategies. Experience in capacity planning, SLOs, and error budget management Azure Monitor, Application Insights, Log Analytics, Azure Data Explorer (KQL), Azure Functions, Logic Apps, PowerShell, C#, SQL Server Management Studio, Azure Storage Explorer, Power BI (for reporting). Desirable Your Personal Skills and Attributes Exceptional problem-solving skills with strong attention to detail. Ability to clearly More ❯

planning for servers, databases, and storage, scaling resources before issues occur. Identify systemic patterns causing downtime and implement fixes at scale. 3. Automation & Tooling Build scripts and automation (PowerShell, C#, Azure Functions, Logic Apps) to detect and remediate common application or infrastructure issues. Automate environment health checks and reporting. Develop self-healing routines for recurring problems. 4. Monitoring & Reporting Implement … operations for enterprise SaaS. Proven track record in incident resolution and root cause analysis. Experience working with both multi-tenant and single-tenant cloud architectures. Strong background in supporting C#/.NET Core/MVC web applications with SQL Server backends and Azure Blob Storage. Advanced Azure diagnostics (Application Insights, Log Analytics, Kusto Query Language). Proficient in SQL for … DB, Blob Storage, scaling strategies. Experience in capacity planning, SLOs, and error budget management Azure Monitor, Application Insights, Log Analytics, Azure Data Explorer (KQL), Azure Functions, Logic Apps, PowerShell, C#, SQL Server Management Studio, Azure Storage Explorer, Power BI (for reporting). Desirable Your Personal Skills and Attributes Exceptional problem-solving skills with strong attention to detail. Ability to clearly More ❯

planning for servers, databases, and storage, scaling resources before issues occur. Identify systemic patterns causing downtime and implement fixes at scale. 3. Automation & Tooling Build scripts and automation (PowerShell, C#, Azure Functions, Logic Apps) to detect and remediate common application or infrastructure issues. Automate environment health checks and reporting. Develop self-healing routines for recurring problems. 4. Monitoring & Reporting Implement … operations for enterprise SaaS. Proven track record in incident resolution and root cause analysis. Experience working with both multi-tenant and single-tenant cloud architectures. Strong background in supporting C#/.NET Core/MVC web applications with SQL Server backends and Azure Blob Storage. Advanced Azure diagnostics (Application Insights, Log Analytics, Kusto Query Language). Proficient in SQL for … DB, Blob Storage, scaling strategies. Experience in capacity planning, SLOs, and error budget management Azure Monitor, Application Insights, Log Analytics, Azure Data Explorer (KQL), Azure Functions, Logic Apps, PowerShell, C#, SQL Server Management Studio, Azure Storage Explorer, Power BI (for reporting). Desirable Your Personal Skills and Attributes Exceptional problem-solving skills with strong attention to detail. Ability to clearly More ❯

and be involved in scholarship and continuous curriculum improvement. You will deliver and support modules in the Computing related disciplines some of these are as follows: Advanced Programming in C# Data Structures and Algorithms in Java Databases using SQL Advanced Databases and Big Data using Python Web Design Programming using ASP .Net Core Cloud Computing Applied Machine Learning using Python … flexible, student-focused approach and commitment to continuous improvement Willingness to work towards HEA Fellowship (if not already held) Confident in teaching the following Programming languages Python, Java and C# Desirable: PhD (or near completion) or equivalent industry experience Research or enterprise activity involvement Teaching qualification Experience leading modules or academic teams What We Offer A diverse and inclusive academic More ❯

and be involved in scholarship and continuous curriculum improvement. You will deliver and support modules in the Computing related disciplines some of these are as follows: Advanced Programming in C# Data Structures and Algorithms in Java Databases using SQL Advanced Databases and Big Data using Python Web Design Programming using ASP .Net Core Cloud Computing Applied Machine Learning using Python … flexible, student-focused approach and commitment to continuous improvement Willingness to work towards HEA Fellowship (if not already held) Confident in teaching the following Programming languages Python, Java and C# Desirable: PhD (or near completion) or equivalent industry experience Research or enterprise activity involvement Teaching qualification Experience leading modules or academic teams What We Offer A diverse and inclusive academic More ❯

ensuring issues are resolved efficiently. Collaborate closely with the development team to rapidly identify, report, and fix bugs, improving product reliability and user satisfaction. Contribute to feature development using C#, Angular, and SQL, enhancing product performance and functionality. Leverage AI-powered tools to streamline support, automate repetitive tasks, and boost team efficiency. Create clear, reusable documentation for processes, common solutions … explain technical concepts to both technical and non-technical users. Comfortable working independently and as part of a collaborative team in a fast-paced environment. Hands-on experience with C#, Angular, and SQL, with a willingness to deepen expertise. Familiarity with version control systems (Git) and modern development practices. Desirable Skills & Experience Curiosity about or experience with AI-powered development More ❯

ensuring issues are resolved efficiently. Collaborate closely with the development team to rapidly identify, report, and fix bugs, improving product reliability and user satisfaction. Contribute to feature development using C#, Angular, and SQL, enhancing product performance and functionality. Leverage AI-powered tools to streamline support, automate repetitive tasks, and boost team efficiency. Create clear, reusable documentation for processes, common solutions … explain technical concepts to both technical and non-technical users. Comfortable working independently and as part of a collaborative team in a fast-paced environment. Hands-on experience with C#, Angular, and SQL, with a willingness to deepen expertise. Familiarity with version control systems (Git) and modern development practices. Desirable Skills & Experience Curiosity about or experience with AI-powered development More ❯

About Man Group Man Group is a global alternative investment management firm focused on pursuing outperformance for sophisticated clients via our Systematic, Discretionary and Solutions offerings. Powered by talent and advanced technology, our single and multi-manager investment strategies are More ❯

Graduate Software Engineer - Portfolio Management £45K - £55K + Bonus + Bens A small, high-performance team at the centre of a specialist reinsurance group are looking for several Computer Science/Maths graduates to join them in London. You will More ❯

Graduate Software Engineer - Portfolio Management £45K - £55K + Bonus + Bens A small, high-performance team at the centre of a specialist reinsurance group are looking for several Computer Science/Maths graduates to join them in London. You will More ❯