1 to 25 of 57 FastAPI Jobs in London

with multidisciplinary teams to deliver impactful digital experiences. Key Responsibilities Build GenAI applications using frameworks like LangChain, LangGraph, or CrewAI. Develop microservices using Python (FastAPI) or TypeScript (Express). Create front-end applications with React, TypeScript, and frameworks like Next.js or Vite. Integrate LLMs (e.g., OpenAI, Anthropic, Mistral) and vector ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: 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 ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: 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 ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: 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 ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: 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 ...

years of commercial software development experience. Proven success in high-performing engineering teams within fast-paced environments. Deep expertise in: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform ...

Full-Stack Development Solid software engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture, API design (REST, GraphQL) Experience with containerization (Docker, Kubernetes) and cloud-native development patterns DevOps & SRE Practices Experience implementing CI/ ...

Science & Engineering: Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow), SQL, NoSQL, Spark, big data ecosystems Visualisation & APIs: REST/JSON, Postman, Flask/FastAPI, Power BI/Tableau, D3.js DevOps & Cloud: CI/CD, Docker, AWS (S3, Lambda, SageMaker), Kubernetes, Terraform/CDK ML Ops & Automation: MLFlow, feature stores ...

integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger ...

Solving complex problems in data flow, latency, and scale Contributing to a culture of fast iteration, clean code, and continuous learning 🧰 Tech Stack: Python (FastAPI, Flask) TypeScript, Node.js, React PostgreSQL, Redis, Kafka Docker, Kubernetes, AWS CI/CD with GitHub Actions, Terraform 💼 What You’ll Bring: Experience in working ...

scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills 👌 Can speak, or learning to speak, more than one language Experience with real-time databases. Experience with in-memory databases. Experience ...

ownership of areas of product Required: 7+ years of experience writing backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing frameworks and TDD practices Experience working with Cloud Infrastructure (Ideally ...

Stack Developer with experience in Azure. The ideal candidate will have hands-on experience building and deploying scalable web applications using Python (Django/FastAPI/Flask) on the backend and modern JavaScript frameworks (React or Angular) on the frontend. In addition to full-stack development, you’ll work with ...

ownership of areas of product Required: 7+ years of experience writing Backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing frameworks and TDD practices Experience working with Cloud Infrastructure (Ideally ...

LangSmith, LangFuse, Weights & Biases, MLflow, Humanloop Cloud: Azure ML, AWS SageMaker, Google Vertex AI, Databricks, Modal Infra: Python, Docker, Kubernetes, SQL/NoSQL, PyTorch, FastAPI, Redis ...

with EDA, data wrangling, and visualization tools (e.g., Matplotlib, Plotly, BI tools) Ability to build, evaluate, and deploy ML models (REST APIs, batch jobs, FastAPI, etc.) Experience operating in cloud environments (AWS preferred) using Docker and Git workflows Strong foundation in statistics, machine learning, and experimental design Proven ability ...

Looking For 6–12+ years of professional Python engineering experience Strong background in backend systems, microservices, or distributed architectures Experience with modern frameworks (FastAPI, Django, Flask, etc.) Ability to own complex projects from design → delivery Pragmatic engineering mindset—clear communicator, thoughtful problem solver Someone who thrives in autonomy and values ...

work in a fast-paced environment! The ability to communicate technical concepts clearly across the team Tech Stack includes: Python, Django, AWS, PostgreSQL, FastAPI, Kubernetes, Terraform, GitHub The Package: £70,000-£80,000 base salary 10% performance-based bonus 28 days annual leave (plus public holidays) Private medical insurance ...

front end, Python on the back end. You'll: Build responsive UIs in React Develop APIs & services in Python (either Django/Flask/FastAPI) Own features end-to-end Help shape our tech stack You have: Strong React & Python skills API & database experience A proactive, problem-solving mindset Ideally ...

front end, Python on the back end. You'll: Build responsive UIs in React Develop APIs & services in Python (either Django/Flask/FastAPI) Own features end-to-end Help shape our tech stack You have: Strong React & Python skills API & database experience A proactive, problem-solving mindset Ideally ...

technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure ...

reviews, technical discussions, and shared team practices Mentor peers and help grow a high-trust, high-impact engineering culture Tech Stack Python 3.x with FastAPI, Pydantic, SQLAlchemy, Pandas, and NumPy Relational databases: MySQL and PostgreSQL GCP experience is a plus, but not required Modern Middleware is a plus – e.g. ...

Have the opportunity to participate in the upside of an ultra-growth venture. Have fun 🙂 Apply if: You have experience with our stack: Python, FastAPI, Postgres, SQLAlchemy, Alembic, Typescript, React, LlamaIndex/LangChain, PyTorch, HuggingFace, OpenAI, Docker, Azure, You have taken entire products or features from ideation to deployment ...

learn on the job. Have strong familiarity with SQL Experience with the following tools and frameworks: Apache Airflow and or data pipelines. Celery FastAPI and/or Flask Postgres (AWS Aurora Ideally) DynamoDB Have experience working in the FinTech industry, particularly in a Financial Crime role (Fraud, AML, KYC, Sanctions ...

learn on the job. Have strong familiarity with SQL Experience with the following tools and frameworks: Apache Airflow and or data pipelines. Celery FastAPI and/or Flask Postgres (AWS Aurora Ideally) DynamoDB Have experience working in the FinTech industry, particularly in a Financial Crime role (Fraud, AML, KYC, Sanctions ...