11 of 11 Permanent API Development Jobs in London

Senior Developer, Back End, API, .Net SQL, NW London to £80K (office based role) A Senior Back End Developer is required to join this established financial software house based in North London. They work with some of the leading brands in retail and media, offering financial management systems developed … required with expertise in .NET, C#/VB, SQL Server, and SAP Business One integration. The ideal candidate should have strong skills in RESTful API development, database optimization, and Azure DevOps pipeline management. Knowledge of API security, CI/CD automation, and Swagger documentation is recommended. Responsibilities ...

though also like the idea of the equally important social/client-facing aspect of the role. The role is responsible for defining the development architecture across a blend of in-house bespoke solutions and 3rdparty products and helping to shape the longer-term strategic development architecture … developing architecture strategy and target architecture model. You will be working closely with delivery team members to coach and promote best-practice solution development architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority ...

hire an Applications Developer into their London team. This is a strong fit for someone with deep Microsoft stack experience, particularly around SharePoint development and ASP.NET applications within enterprise environments. The role will focus on designing, developing, and supporting internal business applications and collaboration platforms across both on-prem … cloud-based environments. Key areas include: • SharePoint 2016/2019/SE & SharePoint Online development and administration • ASP.NET MVC/ASP.NET Core MVC application development • C# and Web API development • SQL Server, Entity Framework & SSRS • Power Platform (PowerApps/Power Automate) • Front-end technologies including React ...

Agentic AI tooling and orchestration frameworks LangChain/LangGraph PyTorch and ML libraries REST APIs Docker and containerisation CI/CD pipelines Git-based development workflows What we're looking for 4-6 years' experience within Software Engineering, AI Engineering, or Machine Learning Engineering roles Strong hands-on Python … engineering practices Exposure to Agentic AI frameworks or autonomous AI workflows Experience working with Azure and Databricks Good understanding of backend engineering and API development Experience collaborating across cross-functional engineering and product teams Ability to mentor or support junior engineers Strong communication and problem-solving skills Package ...

United Kingdom, London, LondonEngineering Manager Software & MLAbout this roleWe are looking for a Software Engineering Manager who brings a solid foundation in modern development and some experience with Machine Learning environments. You ll lead and grow a team that builds the core software powering our data-driven financial products … Collaborate with Product Managers and Data Scientists to ensure ML models are effectively integrated into our production software.Build Robust Systems: Oversee the development of platforms that are performant, secure, and capable of handling the unique deployment needs of AI-powered features.Optimize Delivery: Enhance engineering and agile processes, ensuring that ...

London, London Engineering Manager - Software & ML About this role We are looking for a Software Engineering Manager who brings a solid foundation in modern development and some experience with Machine Learning environments . You'll lead and grow a team that builds the core software powering our data-driven … Collaborate with Product Managers and Data Scientists to ensure ML models are effectively integrated into our production software. Build Robust Systems: Oversee the development of platforms that are performant, secure, and capable of handling the unique deployment needs of AI-powered features. Optimize Delivery: Enhance engineering and agile processes ...

Applied AI engineering, ML engineering or software engineering background Experience with LLMs, RAG, embeddings, prompt engineering or fine tuning Exposure to LangChain, LangGraph, Agent Development Kit or similar agent frameworks Experience with vector databases such as Pinecone, Chroma or similar API development experience, ideally with FastAPI ...

high-availability, data-intensive applications Collaborate with engineering, data, and business teams Required Experience Strong Python experience (Django, Flask or FastAPI) Proven backend/API development experience Experience within banking or financial services Exposure to cloud (AWS/Azure/GCP) and modern engineering practices Nice To Have ...

automation pipelines and network environments Create clear and concise technical documentation Contribute to evolving automation standards and best practices What Were Looking For Automation & Development Strong Python skills, including API development, integration, and testing Experience writing high-quality, testable code and participating in code reviews Hands ...

Experience Required Strong programming and scripting skills (Python and Bash essential) Solid experience with cloud platforms - AWS and/or Azure Strong understanding of API development and security Experience designing or implementing security controls in complex environments Knowledge of, or strong interest in, data science and AI-driven … role with strong visibility across engineering and leadership teams Flexible working arrangements and a strong culture of collaboration Competitive compensation and long-term career development ...

aligned with business goals. What They Are Looking For Degree in Computer Science, Information Systems, or related field. Minimum 3 years' experience in software development, with strong skills in SharePoint, SQL Server, and the .NET environment. Proficiency in C#, ASP.NET MVC/Core, and web API development. Experience … with front-end frameworks and modern development practices. Strong problem-solving skills and ability to manage multiple projects. Excellent communication and collaboration skills. Why Apply? This is a fantastic opportunity to join a prestigious global organization that values innovation and offers a collaborative, forward-thinking environment. You'll work ...