1 to 25 of 47 Permanent FastAPI Jobs in London

senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding More ❯

following: Strong proficiency in TypeScript and experience with modern front-end frameworks such as React or Vue. Solid experience with back-end development using Typescript/Python frameworks (Flask, FastAPI, or Django is a plus) Understanding of UI/UX principles and ability to create intuitive user experiences Proven ability to work in both rapid prototyping mode and to ship More ❯

APIs, databases, and deployment pipelines. Key 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, and security across the stack. More ❯

to innovative cloud and data-driven projects within a collaborative and forward-thinking technical environment. Key Responsibilities: Design, build and maintain full-stack applications using Python (Django, Flask or FastAPI) and modern JavaScript frameworks (such as React, Vue or Angular) Develop and optimise ETL pipelines , data workflows and API integrations Collaborate with data engineers and analysts to ensure efficient data More ❯

to innovative cloud and data-driven projects within a collaborative and forward-thinking technical environment. Key Responsibilities: Design, build and maintain full-stack applications using Python (Django, Flask or FastAPI) and modern JavaScript frameworks (such as React, Vue or Angular) Develop and optimise ETL pipelines , data workflows and API integrations Collaborate with data engineers and analysts to ensure efficient data More ❯

applications on the Google Cloud Platform (GCP), with a strong focus on Vertex AI services. Build Scalable Backend Services: Develop secure, high-performance APIs and microservices using Python and FastAPI to integrate agentic systems into the wider enterprise architecture. Technical Skillset Requirements Core AI & Frameworks: Agentic Frameworks: Expert-level knowledge of agentic frameworks such as LangChain, LangGraph, Google Agent Development More ❯

applications on the Google Cloud Platform (GCP), with a strong focus on Vertex AI services. Build Scalable Backend Services: Develop secure, high-performance APIs and microservices using Python and FastAPI to integrate agentic systems into the wider enterprise architecture. Technical Skillset Requirements Core AI & Frameworks: Agentic Frameworks: Expert-level knowledge of agentic frameworks such as LangChain, LangGraph, Google Agent Development More ❯

applications on the Google Cloud Platform (GCP), with a strong focus on Vertex AI services. Build Scalable Backend Services: Develop secure, high-performance APIs and microservices using Python and FastAPI to integrate agentic systems into the wider enterprise architecture. Technical Skillset Requirements Core AI & Frameworks: Agentic Frameworks: Expert-level knowledge of agentic frameworks such as LangChain, LangGraph, Google Agent Development More ❯

applications on the Google Cloud Platform (GCP), with a strong focus on Vertex AI services. Build Scalable Backend Services: Develop secure, high-performance APIs and microservices using Python and FastAPI to integrate agentic systems into the wider enterprise architecture. Technical Skillset Requirements Core AI & Frameworks: Agentic Frameworks: Expert-level knowledge of agentic frameworks such as LangChain, LangGraph, Google Agent Development More ❯

solutions. Optimize code for performance, scalability, and security. Support integration with cloud platforms, automation, or data pipelines. Required Skills & Experience: Strong proficiency in Python and related frameworks (Django, Flask, FastAPI). Experience with REST APIs, microservices, and backend development. Knowledge of databases (PostgreSQL, MySQL, MongoDB). Familiarity with cloud platforms (AWS/Azure/GCP) and CI/CD practices. More ❯

solutions. Optimize code for performance, scalability, and security. Support integration with cloud platforms, automation, or data pipelines. Required Skills & Experience: Strong proficiency in Python and related frameworks (Django, Flask, FastAPI). Experience with REST APIs, microservices, and backend development. Knowledge of databases (PostgreSQL, MySQL, MongoDB). Familiarity with cloud platforms (AWS/Azure/GCP) and CI/CD practices. More ❯

you. Especially, if you know your way around all the following: Langchain, Lang graph, Agentic Frameworks, LLarma Python, JavaScript, TypeScript, AWS/GCP/Azure, Spark/Data Bricks, FastAPI/Flask, RAG, LLMs, GenAI, AI Solutions, Data Pipelines, Microservices, Solution Design, Software Development, Restful APIs, Chatbots, CI/CD Github Actions, AI Engineering, Unit Testing, Vector Databases Please note More ❯

meet users’ needs Take technical ownership of areas of product Requirements: 5+ years of experience writing Backend applications using Python and Django (Rest Framework)or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing frameworks and TDD practices Experience working with Cloud Infrastructure (ideally AWS) Good understanding of More ❯

sectors. Guide and mentor junior developers through hands-on leadership, code reviews, and knowledge-sharing. Write, review, and own high-quality code primarily in Python (using frameworks like Flask, FastAPI, or Django) and JavaScript/TypeScript (preferably React). Develop and maintain RESTful APIs and modern user interfaces, ensuring an excellent user experience and technical excellence. Work directly with clients More ❯

The role requires a blend of technical depth and product sense, including Bachelor's or Master's degree in Computer Science, Engineering, or related field. Strong Python engineering skills (FastAPI, testing, typing) and experience with cloud-native development (GCP preferred). Hands-on experience with GCP Vertex AI (model endpoints, pipelines, embeddings, vector search) or equivalent cloud-native ML platforms More ❯

meet users needs Take technical ownership of areas of product Requirements: 5+ years of experience writing Backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing frameworks and TDD practices Experience working with Cloud Infrastructure (ideally AWS) Good understanding of More ❯

build an end-to-end pipeline consuming other data products. Minimum Requirements 5+ years experience with frontend software development (e.g. React). Demonstrated experience of Python development (e.g. using FastAPI). Bachelors degree in a relevant field (including computational, numerate or life sciences), or equivalent experience. Cloud experience (e.g. Google Cloud and cloud run preferred) including core web application infrastructure More ❯

the stack - React on the 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 start-up or scale-up More ❯

the stack - React on the 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 start-up or scale-up More ❯

role offers a clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/ More ❯

role offers a clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/ More ❯

role offers a clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/ More ❯

role offers a clear path to grow into a senior developer or product owner as the company scales. What you’ll do: Build and expand backend applications using Python (FastAPI) Design and implement microservices and REST APIs Write clear documentation, unit tests, and end-to-end tests Work with AWS, Docker, SQLAlchemy, and SQL databases Deploy features via CI/ More ❯

SQL Understanding of RESTful APIs and web services Familiarity with version control systems (Git) Strong problem-solving skills and attention to detail Good to have Experience with backend frameworks(FastAPI) Knowledge of containerisation (Docker) Understanding of testing principles and TDD Familiarity with CI/CD pipelines Experience with agile development methodologies 25 days holiday + Bank Holidays Flexible holiday - choose More ❯

Highly desirable skills include: Domain Experience: Familiarity with the unique structure of sports data (e.g., event, tracking, scouting, video). API Development: Experience building data-centric APIs, especially with FastAPI on serverless platforms like Google App Engine . Streaming Data: Practical experience building real-time data pipelines. DevOps & MLOps: Knowledge of Infrastructure as Code (Terraform), MLOps principles, and containerization (Docker More ❯