1 to 25 of 271 Permanent FastAPI Jobs in England

professional experience in software engineering and technology, across relevant technical roles and responsibilities; Solid experience with Python and backend development using frameworks such as FastAPI, Flask, or Django; Experience designing and developing RESTful APIs; Good understanding of front-end development with React JS, JavaScript (ES6+), and TypeScript; intermediate knowledge ...

with a strong focus on building scalable, high-performance systems. Technical Skills: Python expertise, with hands‐on experience building backend services and APIs using FastAPI, Flask or similar. Experience in designing and developing end-to-end (E2E) tests to ensure smooth integration between backend and frontend components. A solid understanding ...

through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Python development experience, with 2+ years of AI/ML development Strong proficiency in Python and experience with frameworks such as Django, Flask, or FastAPI Experience with API development, integration, and web services in production environments Hands‐on experience integrating AI or ML models, LLM APIs, or automation frameworks into ...

Security Check) Clearance or be eligible for such level of clearance.## **Technical Expertise*** **Backend Development**: Experience in building microservices using either Python with **FastAPI**, or TypeScript with **Express** or equivalent* **Frontend Development**: Experience in building React applications using TypeScript, leveraging frameworks such as **Next.js** or **Vite**.* **GenAI Frameworks**: Familiarity ...

Security Check) Clearance or be eligible for such level of clearance.## **Technical Expertise*** **Backend Development**: Experience in building microservices using either Python with **FastAPI**, or TypeScript with **Express** or equivalent* **Frontend Development**: Experience in building React applications using TypeScript, leveraging frameworks such as **Next.js** or **Vite**.* **GenAI Frameworks**: Familiarity ...

through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Lambda ECS or EKS API Gateway SNS and SQS EventBridge IAM CloudWatch Serverless and event-driven architectures Desirable experience Stronger Python backend development using FastAPI or Flask. Kubernetes or Amazon EKS. DevSecOps and secure-by-design engineering. Observability, monitoring and automated alerting. < REST APIs and distributed systems. Ansible, CloudFormation ...

security) Strong experience with modern frontend frameworks (React, Vue, Angular, or equivalent) Strong experience with backend frameworks and API development (e.g., Node.js/Express, FastAPI/Django/Flask, ASP.NET, Spring Boot, or similar) Experience with relational and NoSQL databases (e.g., PostgreSQL, SQL Server, DynamoDB, MongoDB, Cosmos) including data modeling ...

proven full stack engineering experience with production web applications and backend services Strong skills and programming experience in Python Experience developing web applications using FastAPI, Flask, or Django Experience with frontend development in TypeScript/JavaScript, Next.js, React, and MUI frameworks Familiarity with PostgreSQL, Redis, and REST API design ...

Security Check) Clearance or be eligible to obtain and maintain this level of clearance. Technical ExpertiseBackend Development Experience building microservices using Python with FastAPI, TypeScript with Express, or equivalent technologies. Frontend Development Experience developing React applications using TypeScript. Familiarity with frameworks such as Next.js, Vite, or similar. Generative AI Technologies ...

Security Check) Clearance or be eligible to obtain and maintain this level of clearance. Technical Expertise Backend Development Experience building microservices using Python with FastAPI, TypeScript with Express, or equivalent technologies. Frontend Development Experience developing React applications using TypeScript. Familiarity with frameworks such as Next.js, Vite, or similar. Generative ...

plus AI product UX patterns such as streaming, review loops, provenance/citations, long-running tasks and error recovery. Back-end: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django Channels, Flask and RESTful APIs. Databases and storage: PostgreSQL, MS SQL Server, MongoDB, Firestore, BigQuery, Azure Blob Storage. Cloud and DevOps: Azure ...

ShadCN UI, Redux, Zustand, Jest, Cypress.Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recoveryBackend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django Channels, Flask, RESTful APIs.Databases & Storage: PostgreSQL, MS SQL Server, MongoDB, Firestore, BigQuery, Azure Blob Storage.Cloud & DevOps: Azure (App Services, OpenAI ...

Lake/Apache Iceberg, and advanced SQL for large‐scale transformations. Microservices & APIs: experience building modular, production‐grade microservices and REST APIs using Python (FastAPI, Flask, or equivalent); understanding of service design principles including versioning, fault tolerance, and observability. Cloud platforms: working knowledge of cost and usage data schemas across ...

delivery. Key Responsibilities: Develop responsive and accessible applications using React, Next.js, and TypeScript. Design and maintain backend services and REST APIs using Python and FastAPI or Flask. Develop application functionality using Elasticsearch and other search or data services. Implement secure authentication and authorisation, including OAuth2 and Microsoft Entra ID integrations. ...

Services, Azure Functions, virtual machines, storage, networking, and monitoring Docker and Linux-based application hosting SQL Server, PostgreSQL, or SQLite IIS, Nginx, Flask, FastAPI, Django, Node.js, or similar web stacks Secure file transfer, API integrations, and healthcare system interfaces Monitoring, alerting, logging, and incident response platforms We offer an excellent ...

like React Proficiency with writing maintainable Python and Typescript, including experience of working with relevant libraries for data processing and backend API development (i.e., FastAPI, Pydantic, expressJS, NodeJS, NextJS API Router, etc) Good understanding of cloud deployment Strong understanding and proven experience working with browsers and web APIs including HTML ...

architecture, RESTful APIs, cloud platforms such as AWS, GCP, or Azure, and containerization with Docker and Kubernetes Solid grasp of modern web technologies including FastAPI, Asyncio, database systems like PostgreSQL, and hands-on experience leveraging AI developer tooling like Claude, Cursor, or GitHub Copilot to accelerate your engineering workflows Exposure ...

responsibilities within your competence to support our growth. Required Skills & Experience: Significant industry experience in (scientific) software development Proven experience building production APIs with FastAPI (or similar async Python frameworks) Strong working knowledge of modern machine learning — able to understand, integrate, and extend the functionality of an ML library (NumPy ...

Responsibilities Design, develop, and maintain frontend applications using React and Next.js. Build, test, and deploy backend services and APIs (Python/Django/FastAPI preferred, but other languages/frameworks welcome). Collaborate with founders, growth team, designers, and other engineers to deliver high-impact features. Ensure scalability, performance ...

environment, this role offers both autonomy and real impact. Requirements Backend Architecture & APIs (Primary Focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput workloads. Build well-versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward compatibility. ...

Design (SbD) frameworks. 2. Full-Stack Engineering (Web & APIs) 4+ years of production experience with modern Web stacks (TypeScript, React, Node.js, or Python/FastAPI). Strong API design experience (REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). 3. Systems & Mobile Architecture (Android ...