1 to 25 of 300 FastAPI Jobs in London

data engineering and Python development. Requirements Technical Skills 2–3 years of hands-on experience as a Python Developer. Strong proficiency in Python 3.x and frameworks such as Flask , FastAPI , or Django . Solid experience with data libraries like Pandas , NumPy , and Dask . Familiarity with data processing frameworks (e.g., PySpark , Apache Beam ). Proficient in both SQL and NoSQL More ❯

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 ❯

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 ❯

Mathematical Logic: Understand and translate pre-defined passenger flow modelling logic into efficient Python code. Backend Development: Build robust and maintainable backend components, utilizing Python-based frameworks like Flask, FastAPI, or Django. API Integration: Develop and integrate with existing RESTful APIs, ensuring seamless data flows between backend and frontend components. UI Integration: Collaborate with front-end developers to ensure proper … quality, maintainable code with thorough documentation. Conduct code reviews to ensure best practices are followed. Required Skills and Qualifications: Advanced Python skills with experience in backend frameworks like Flask , FastAPI , or Django . Ability to write efficient, reusable, and scalable code. Experience with libraries like NumPy , Pandas , SciPy , or any others commonly used in data processing or modelling. Strong understanding More ❯

and Experience Minimum 8 years of commercial software development experience, with at least 3 years in a senior or technical lead role. 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 ❯

RPCs. Understanding of TDD, BDD, unit testing, integration testing, and when to use them. Familiarity with trunk-based development in Git. Experience with back-end web application frameworks (Django, FastAPI, etc.). Experience with language models and agentic workflows (e.g., Langchain, AutoGPT). Knowledge of model evaluation metrics and techniques. Google Cloud (Cloud Functions, AppEngine, PubSub, Stackdriver, etc.). Docker More ❯

need to hold an active SC (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 . LLM experience : Practical experience with Large Language More ❯

need to hold an active SC (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 . LLM experience : Practical experience with Large Language More ❯

understand TDD, BDD, unit testing, integration testing and when to use them. You are familiar with trunk-based development in git. Experience with back-end web application frameworks (Django, FastAPI, etc) NICE TO HAVE Google Cloud (Cloud Functions, AppEngine, PubSub, Stackdriver, etc.) Docker, Kubernetes Typescript, NodeJS, React, Webpack etc. Java, C# Experience within the advertising/media agency space. Terraform More ❯

world needs, contributing directly to products that redefine how humans and intelligent agents collaborate. Key Responsibilities Design, implement, and maintain scalable back-end systems and RESTful APIs using Python (FastAPI/D) Apply domain-driven design and test-driven development to build microservices using agile methodologies, with a focus on reliability Develop, test, and deploy LLM-based applications in secure … re motivated by the opportunity to build meaningful, production-ready tools at the frontier of LLMs, agentic AI, and enterprise software. Essential: Strong experience with Python and proficiency in FastAPI or Django Proven experience building secure, enterprise-grade, public-facing software in an agile delivery environment Familiarity with SQL and NoSQL databases, including PostgreSQL, Redis, or MongoDB Solid understanding of More ❯

designing, developing, and scaling the Ultralytics HUB, our end-to-end platform for AI model development. Key responsibilities include: Designing and building robust, scalable backend services using Python and FastAPI . Developing intuitive and responsive frontend applications with TypeScript and Nuxt.js . Architecting and managing our infrastructure on Google Cloud Platform (GCP) , leveraging Docker for containerization. Implementing and maintaining microservices … machine learning tools and models to the community. 🛠️ Skills and Experience 5+ years of experience in full-stack software engineering. Expertise in Python and experience with web frameworks like FastAPI or Django. Proficiency in modern frontend development using TypeScript and frameworks such as Nuxt.js , Vue.js, or React. Strong experience with cloud platforms, particularly GCP , and containerization technologies like Docker . More ❯

designing, developing, and scaling the Ultralytics HUB, our end-to-end platform for AI model development. Key responsibilities include: Designing and building robust, scalable backend services using Python and FastAPI . Developing intuitive and responsive frontend applications with TypeScript and Nuxt.js . Architecting and managing our infrastructure on Google Cloud Platform (GCP) , leveraging Docker for containerization. Implementing and maintaining microservices … machine learning tools and models to the community. 🛠️ Skills and Experience 5+ years of experience in full-stack software engineering. Expertise in Python and experience with web frameworks like FastAPI or Django. Proficiency in modern frontend development using TypeScript and frameworks such as Nuxt.js , Vue.js, or React. Strong experience with cloud platforms, particularly GCP , and containerization technologies like Docker . More ❯

Retail & Energy sectors. Budget: £55k + full benefits + fully remote Primary requirements: Must be eligible for SC Clearance 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. LLM experience: Practical experience with Large Language Models More ❯

traditional machine learning tools such as Python, SKLearn, XGBoost, SparkML, etc. Experience with deep learning frameworks like TensorFlow or PyTorch. Knowledge of ML model deployment options (e.g., Azure Functions, FastAPI, Kubernetes) for real-time and batch processing. Experience with CI/CD pipelines (e.g., DevOps pipelines, Git actions). Knowledge of infrastructure as code (e.g., Terraform, ARM Template, Databricks Asset More ❯

you enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build full-stack … user-centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills More ❯

you enjoy building meaningful tools with real-world impact — and care about AI being aligned with human values — this is the place to do it. 🛠️ Tech Stack Backend: Python, FastAPI, Flask, monorepo architecture Frontend: React, TypeScript Infrastructure: AWS, EC2, DynamoDB, Docker Tools: Custom eval libraries, observability tooling, real-time agent monitoring systems 🧠 What You’ll Work On Build full-stack … user-centered mindset to technical work ✅ What We’re Looking For 6+ years as a Full Stack or Backend Engineer building production-grade software Strong backend experience with Python (FastAPI, Flask, or Django) Confident with modern frontend frameworks like React and TypeScript Skilled in building and maintaining APIs, cloud services (AWS or GCP), and containerized deployments Strong problem-solving skills More ❯

s degree in computer science or equivalent work experience Bonus Points Additional skills that would be beneficial include: Experience in a startup environment Knowledge of Python frameworks (Django, Flask, FastAPI), Rust, and machine learning libraries Familiarity with Generative AI, MLOps, CI/CD, and cloud platforms (AWS/GCP/Azure) Expertise with container tools like Docker and Kubernetes Ready More ❯

both frontend and backend components of digital solutions. Contribute to user interface development using technologies such as React.js, TypeScript, and Tailwind CSS. Support backend development using Python (Django/FastAPI) and Node.js (Express). Assist with database development and maintenance (PostgreSQL, MySQL, and optionally MongoDB/DynamoDB). Contribute to cloud infrastructure deployment and maintenance (AWS or Azure). Assist More ❯

both frontend and backend components of digital solutions. Contribute to user interface development using technologies such as React.js, TypeScript, and Tailwind CSS. Support backend development using Python (Django/FastAPI) and Node.js (Express). Assist with database development and maintenance (PostgreSQL, MySQL, and optionally MongoDB/DynamoDB). Contribute to cloud infrastructure deployment and maintenance (AWS or Azure). Assist More ❯

serverless applications, containerisation (e.g. Docker) and CI/CD. Experience in managing cloud services like Google Cloud and AWS. Bonus points Startup experience Experience with Python web services (e.g. FastAPI, Django). Data engineering experience using PyData stack technologies (e.g. NumPy, Pandas, etc.) Experience building machine learning systems with LLMs, RAGs utilising embeddings. Technology Frontend: Typescript, Next.js, Vercel Backend: Go More ❯

pivotal role in building our data services capability fit for the future. What You'll Be Doing Designing, developing, and deploying scalable and robust SaaS applications using Python, React, FastAPI, MongoDB, modern AWS cloud services, Terraform, and Airflow. Building and maintaining both the frontend and backend of our core product, ensuring seamless user experiences and high performance. Implementing DevOps practices More ❯

s most valuable brands. Tech Stack You'll Work With We're not precious about tools, but here's what we’re currently using: Languages & Frameworks: Go, Python, Django, FastAPI, Node.js, React, TypeScript, RxJS Infrastructure: Kubernetes, Docker, Google Cloud Platform DevOps: GitHub, CI/CD pipelines Monitoring: OTel, Coralogix Databases: Postgres, MongoDB, Clickhouse Responsibilities and Duties Collaborate with Product Managers More ❯

event streaming and messaging queues such as Kafka Expertise in database systems including Redis, Elasticsearch, Neo4j, and PostgreSQL Proficiency in developing APIs using a backend framework (such as Django, FastAPI, Flask, or Express) Commercial experience in front-end development including at least one web development framework, preferably Vue.js Be comfortable with Unix systems Strong problem-solving skills and a collaborative More ❯

mostly) when you work best Employer Pension scheme (UK) Staff Wellness Programme Technologies we work with Infrastructure: GCP, Kubernetes & Terraform, AWS Code: Python, Typescript and Go Frameworks: Django, Flask, FastAPI, React DB’s: Redis, PostgreSQL & Metabase Tools: GitLab, ClickUp, Notion, Figma We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis More ❯

and meeting quality standards. Your remit will include multiple aspects of our multi-service platform, from AuthN to Data Integration and flow orchestration. The broader application stack includes Python, FastAPI, Postgres, Github, Kubernetes, Helm, Terraform, AWS, GCP, Azure and other technologies. A day in the life of the role: Collaborate closely with product managers, team leads and other senior engineers More ❯