1 to 25 of 70 FastAPI Jobs in Central 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 ❯

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 ❯

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 ❯

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 ❯

science solutions. Process big data at scale using Hadoop/Spark and optimize workflows with Airflow/orchestration tools. Build scalable applications and REST/RPC APIs (Flask/FastAPI/gRPC) for global products. Advocate for engineering best practices, including CI/CD, DevOps, and containerization (Docker/Kubernetes). Mentor junior engineers and lead initiatives to enhance research … tooling and dashboards. Languages: Python, SQL Tools: Spark, Hadoop, Airflow, Docker, FastAPI/Flask Cloud: AWS, CI/CD pipelines (Jenkins, Git) What you'll bring to us: 7+ years in data engineering/science, with expertise in Python, Spark, and SQL. Proven experience with big data processing and scalable system design. Strong knowledge of CI/CD, Agile frameworks More ❯

that’s well-backed, aggressively growing, and ready to take their platform to the next level. 🔧 What You’ll Be Doing: Building robust, secure APIs using Python (Flask/FastAPI) Designing and scaling cloud infrastructure on AWS Creating beautiful, fast interfaces with React , Next.js , and TypeScript Working closely with ML, product, and design teams Mentoring others and helping shape engineering … clean, testable, production-ready code Troubleshooting with modern tools (e.g. Sentry , Datadog ) ✅ What They’re Looking For: 6+ years in full-stack engineering roles Strong Python backend experience (Flask, FastAPI, Django, etc.) Solid React/Next.js front-end skills (TypeScript is a plus) Good knowledge of DevOps and AWS tools (Lambda, ECS, S3, etc.) Understanding of API performance, testing, and More ❯

Agile, startup-paced environment with a cross-functional team What We’re Looking For 3+ years of hands-on professional experience in full-stack development Strong experience with Python (FastAPI or similar frameworks preferred) Proficiency with modern frontend technologies— React , Next.js , or similar Previous hands-on experience building with AI, or a strong interest and mindset for learning and growing More ❯

Job Description Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required. Join JPMorganChase, a global leader in financial services, as we revolutionize our operations with artificial intelligence and More ❯

years of backend development experience, with a strong portfolio of building scalable, production-grade web services. Expert-level proficiency in Python and significant experience with modern web frameworks like FastAPI or Django. Hands-on experience with NoSQL databases, specifically MongoDB , and in-memory data stores like Redis . Deep understanding of containerization with Docker and orchestration with Kubernetes . Proven More ❯

Python Developer Hybrid (1 day a week in London) | 🕒 Full-time Salary £65,000 to £95,000 DOE Are you an experienced Python Developer who loves solving real-world problems with clean, scalable code? Gravitas has partnered with an established More ❯

Manatal is an HRTech software service (B2B SaaS) company headquartered in Bangkok, Thailand. Manatal is one of the fastest-growing start-ups in the region and is backed by Surge and Sequoia Capital. Manatal has a global presence and is More ❯

scale the platform. This is a key role for someone who’s comfortable wearing multiple hats, building in the cloud, and solving problems end to end. Tech stack: Python (FastAPI, gRPC) React Postgres Temporal, Dagster (workflow/ETL) GitHub Copilot, Cursor Docker, CI/CD pipelines Azure, AWS, or GCP Benefits: Strong equity package 25 days holiday + bank holidays … included) Access to gym and fitness classes Flexible hybrid model – office twice a month Regular team events and offsites Key words: Full Stack, Python, React, Postgres, ETL, SaaS, AI, FastAPI, Temporal, Dagster, Kubernetes, GitHub Copilot, Cloud, CI/CD, Autonomous, London Hybrid More ❯

Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £65,000–85,000 base salary + equity at a household name 📦 Flexible benefits budget | Monthly socials | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍Central London, 1 day a week 🧑‍💻 InsurTech | Microservices | Greenfield Development We’ve partnered with a well known name in the insuretech space - one … and long-term growth potential. They're looking for a number of bright, engaging software engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI, Starlette) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product … years’ backend engineering experience (ideally Python, but open to other languages) 🔹 Experience in microservices or modern service architecture 🔹 Excellent communication skills and willingness to take initiative Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a great opportunity to join a profitable, product-focused company with ambitions to scale in 2025. You’ll More ❯

with an existing SaaS solution and driving innovation post-migration to build a scalable, secure, market-leading system. Build scalable, secure full-stack applications using React.js, TypeScript, Python, and FastAPI, following modern development best practises. Design and implement robust APIs and microservices, using SQL Alchemy and FastAPI for efficient backend architecture. Some of the benefits: 25 days of annual leave More ❯

with network-centric systems, and mentor the wider engineering team as we grow. Key responsibilities: Architect, build & implement scalable features in our React frontend and Node.js/Python backend (FastAPI, Celery) Design integrations with network devices, IPAM, monitoring platforms, Wi-Fi authentication systems, CRMs and partnered PropTech tools Continually hone and perfect our homegrown DevOps and CI/CD processes … have: 5+ years hands-on as a full stack engineer in a SaaS environment Expert in React (hooks, state management, performance) Strong backend skills in Node.js (Express) and Python (FastAPI, Celery) Deep familiarity with Microsoft Azure (App Services, Functions, networking) Proven experience working with network-focused systems (SNMP, IPAM, CLI automation) Solid understanding of Auth0 (or similar OAuth/OIDC More ❯

automation frameworks using Python and PyTest . Performing end-to-end testing of the Ultralytics HUB, from front-end UI validation with Selenium to backend API testing of our FastAPI services. Validating data integrity and performance of our MongoDB databases. Integrating automated tests into our CI/CD pipelines using GitHub Actions to ensure continuous quality. Conducting performance testing and … with testing frameworks like PyTest . Hands-on experience with UI automation tools such as Selenium . Proven experience in API testing for RESTful services, preferably those built with FastAPI . Strong understanding of SaaS platform testing , microservices architecture, and cloud environments ( GCP preferred). Experience with CI/CD principles and tools, particularly GitHub Actions . Familiarity with containerization More ❯

will be leading a small team (currently 3 Developers and a DevOps Engineer) so will need to have experience leading and building a team here is important. Stack: Python, FastAPI, Go, TypeScript, C#, React.JS, Azure, Terraform, Kubernetes What do you need? Experience with BE languages such as Python, Golang and C# Frontend experience with Typescript and React,JS Leadership experience More ❯

social care platform. Work directly with experienced founders, own technical architecture, lead scalability efforts, and help build the future tech team while making a real impact. Technical: Python/FastAPI mastery React proficiency + Flutter mobile development (or willingness to learn) Google Cloud Platform experience (or transferable AWS/Azure skills) Database expertise - both MySQL and Firestore Enterprise infrastructure - microservices More ❯

business to reimagine their systems using modern tools and cloud-native architecture. You’ll be building from the ground up in a greenfield environment, using technologies like Python, TypeScript, FastAPI, AWS and some Azure while contributing to projects that have direct commercial impact. Why this role? → A rare opportunity to work at the forefront of AI in a global, high More ❯

or backend) 3+ years of commercial experience in Python 2+ years with any frontend JavaScript frameworks i.e. React/Angular/Vue.js Experience with frameworks like Django, Flask or FastAPI Exposure to cloud platforms such as AWS, Azure, or GCP UK-based, ideally London or commutable and able to work Hybrid (frequency can vary for each client) If you're More ❯

Design and ship cutting-edge platform features using personalisation, LLMs, recommender systems, and reinforcement learning. Work across the stack: Own features end-to-end with React (TypeScript) and Python (FastAPI), blending UX and ML into production-ready code. Move fast with the latest tools: Leverage modern AI dev tools (Cursor, Windsurf) to experiment, prototype, and launch quickly. Be a collaborative More ❯

business to reimagine their systems using modern tools and cloud-native architecture. You’ll be building from the ground up in a greenfield environment, using technologies like Python, TypeScript, FastAPI, AWS and some Azure while contributing to projects that have direct commercial impact. Why this role? → A rare opportunity to work at the forefront of AI in a global, high 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 ❯

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 ❯

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 ❯