1 to 25 of 765 C# Jobs in London

.Net Senior Software Engineer

Location
Greater London, England, United Kingdom
quality, security and data protection. Drives continuous improvement across application performance, technical debt, engineering practices, code quality, security and testing. Essential Technical Skills Strong C# and .NET development experience, ideally within enterprise applications and services. Experience with cloud platforms, preferably Azure, AWS or Google Cloud. Strong SQL skills, including ...

Senior AI Software Engineer / AI Model Specialist

Location
Greater London, England, United Kingdom
Strong written and verbal communication skills in English. Ability to work independently and within distributed international teams. Programming Languages Technical Skills Python (Expert Level) C# JavaScript/TypeScript SQL AI & Machine Learning Machine Learning Deep Learning Neural Networks Natural Language Processing (NLP) Generative AI Large Language Models (LLMs) Retrieval-Augmented ...

Senior Dynamics 365 Customer Engagement (CE) Developer

Location
Greater London, England, United Kingdom
Dynamics, Power Platform and Azure-based solutions Responsibilities Solution Development Design, develop and maintain enterprise-scale Dynamics 365 CE solutions. Develop custom functionality using: C# .NET Plug-ins Custom Workflow Activities JavaScript/TypeScript Web API PCF Controls Extend and customise Model-Driven Apps to support complex business processes. Design ...

Microsoft Power Platform Senior Developer

Location
Greater London, England, United Kingdom
Power Platform context: Azure Functions, Azure Logic Apps, Azure Key Vault, and Azure AD/Entra ID Familiarity with Dynamics 365 CE customisation: plugins (C#/.NET), JavaScript web resources, Ribbon Workbench, and XrmToolBox Architecture & Governance Experience designing enterprise‐grade Power Platform governance frameworks including DLP policies, CoE Toolkit deployment ...

Microsoft Power Platform Senior Developer

Location
City Of London, England, United Kingdom
Power Platform context: Azure Functions, Azure Logic Apps, Azure Key Vault, and Azure AD/Entra ID Familiarity with Dynamics 365 CE customisation: plugins (C#/.NET), JavaScript web resources, Ribbon Workbench, and XrmToolBox Architecture & Governance Experience designing enterprise‐grade Power Platform governance frameworks including DLP policies, CoE Toolkit deployment ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
ecosystem. Tech Stack advanced core Linux skills and administration; languages and VMs: advanced Python (must-have) plus ideally substantial JVM (Java or Scala), .NET (C#), Rust, or Go expertise; Typescript and Javascript (must-have); Node.js (ideal); APIs: RESTful APIs (must-have); GraphQL (desirable); MCP (desirable) or A2A (desirable); web frameworks ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
production systems end to end. Experience in insurance, reinsurance or wider financial services is a plus, but not essential.* **Backend:** Strong programming skills in C#/.NET or Python, with solid API design and strong SQL.* **Frontend:** Practical experience building modern user interfaces with React or Angular and TypeScript.* **Cloud ...

Senior Software Engineer - QuantumBlack, AI by McKinsey

Location
Greater London, England, United Kingdom
members and stakeholders Hands‐on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL) Experience with LLM frameworks, prompt orchestration, agent frameworks, MCPs, evaluation frameworks, and cloud platforms (Azure ...

Full Stack .Net Developer

Location
Greater London, England, United Kingdom
experienced Full Stack .NET Developer to support the delivery of modern, cloud-based applications and digital platforms. Essential qualifications Strong experience with .NET/C# Commercial experience developing front-end applications using React Strong SQL Server development and optimisation skills Experience with Microsoft Azure and cloud-native development Knowledge ...

Software Engineer - QuantumBlack, AI by McKinsey

Location
Greater London, England, United Kingdom
within software teams Hands-on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL) Experience with LLM frameworks, prompt orchestration, agent frameworks, MCPs, evaluation frameworks, and cloud platforms (Azure ...

Solution Architect

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
Event Grid, with the ability to design scalable and resilient integration solutions. Microsoft Stack Expertise: Strong knowledge of the Microsoft stack (.NET, JavaScript, ASP.NET, C#) for plugins, workflows, and custom integrations. Agile Methodologies: Experience working within Agile and DevOps teams. Experience with Azure DevOps for CI/CD and backlog ...

Technical Lead

Location
Greater London, England, United Kingdom
etc. Good understanding on Containerisation solutions, e.g., K8, Docker, Kaniko, etc. Proficiency in at least one of the standard programming languages – Java/JavaScript, C#, Python, or similar Object-oriented programming Proficiency in at least one of the standard scripting languages – Terraform, Bash, Ansible, etc. Good understanding of Software engineering ...

Test Analyst

Location
City Of London, England, United Kingdom
Services, Banking, HR, Payroll or Finance Transformation. Performance, Accessibility, Mobile or Cloud Testing. Experience with CI/CD pipelines, Git, Java, Python, JavaScript or C# would also be beneficial. Qualifications ISTQB Foundation or Advanced Level certifications, BCS Software Testing qualifications or equivalent industry experience would be advantageous. Relevant practical testing ...

Senior Software Developer in Test - Senior Consultant

Location
Greater London, England, United Kingdom
Experience: Eligibility for SC clearance Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands‐on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge of integration ...

Senior Software Developer in Test - Senior Consultant

Hiring Organisation
Centre4 Testing
Location
London, UK
Employment Type
Full-time
Essential Skills & Experience: Eligibility for SC clearanceSignificant experience in Agile environments (e.g., SCRUM, Kanban).Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similarProven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssuredStrong knowledge of integration testing ...

Senior Software Developer in Test - Senior Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Experience: Eligibility for SC clearance Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge of integration ...

Software Engineer - Seismic (Contract)

Location
Greater London, England, United Kingdom
Experience with Salesforce architecture, including data synchronization, user mapping, and embedding apps into Sales Cloud. Backend & Data Skills: Proficiency in a language like Python, C#, or Node.js, alongside database management (SQL/PostgreSQL) to audit and reconcile synced logs. Authentication & Security: Managing secure cross-platform authentication flows, token handling ...

Full Stack AI Engineer

Location
Greater London, England, United Kingdom
building and shipping production software, typically three to five years of professional development experience. Full stack development skills, with practical experience in backend development (C# or Python), frontend development (Angular or React/Next.js) and relational databases (SQL Server), and depth in at least one of these areas. Curiosity ...

Cloud-Native .NET Developer | Azure + React

Location
Greater London, England, United Kingdom
Arthur is seeking a seasoned Full Stack .NET Developer to deliver modern, cloud-based applications and digital platforms. You will work across .NET/C#, React front-ends, and Azure-based services, shaping RESTful APIs, CI/CD pipelines, and automated testing within an Agile environment. Ideal candidates have hands ...

Full-Stack Development- Consultant

Location
City Of London, England, United Kingdom
consideration to security and performance. Harness modern development and Azure DevOps practices, including CI/CD, containerization, and automated testing. Required Technical Skills Programming: C#/.NET, JavaScript/TypeScript Service Development: building web applications and web APIs using .NET and cloud services Cloud: Azure and others Database: (worked with ...

Senior Software Test Engineer (SDET) – London – Permanent

Location
Greater London, England, United Kingdom
experience CI/CD experience (Azure DevOps, GitHub Actions or Jenkins) Strong troubleshooting and problem-solving skills Desirable: AWS or Azure Python, Java or C# Contract testing Docker/Kubernetes Performance testing AI/LLM application testing This is an excellent opportunity for someone who enjoys solving technical challenges, writing ...

D365 CRM Developer

Location
City of Westminster, England, United Kingdom
cause analysis, and production support activities. Produce technical design documentation and contribute to solution design discussions. Required Skills Microsoft Dynamics 365 CE/CRM C#, .NET Framework/.NET Core JavaScript/TypeScript Dataverse Power Apps (Model-Driven & Canvas) Power Automate REST APIs/Web API Azure Functions, Logic Apps ...

Application Security Engineer (Software) - Financial Services

Location
Greater London, England, United Kingdom
Agentic AI, AI skills development and security triage. Ability to code in at least one programming language e.g. Python/JavaScript/CSharp/Powershell Prior experience working in a large organisation or Financial Services is an advantage as well as in Software Engineering Excellent analytical skills with attention ...

Senior AWS DevOps Engineer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
Gateway, DynamoDB, Aurora and S3. Experience with SQL Server, Sybase and PostgreSQL, including Aurora. Experience supporting or developing applications using Unix/Linux, Java, C#/.NET and Python. Strong communication skills, with the ability to engage technical and non-technical stakeholders. A calm, decisive approach under pressure, with ...

Software Developer in Test - C3

Hiring Organisation
Centre4 Testing
Location
London, UK
Employment Type
Full-time
from you! Essential Skills & Experience: Eligibility for Security ClearanceExperience in Agile environments (e.g., SCRUM, Kanban)A technical development background with coding skills in Java, C#, TypeScript, JavaScript, or similarExpertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssuredKnowledge of integration testing and automation frameworksHands ...