101 to 125 of 362 FastAPI Jobs in London

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 ❯

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 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 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 ❯

FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do Design, build, and maintain Python microservices (FastAPI) in production Own features end-to-end: design, build, test, deploy, monitor Write clean, testable code with strong attention to performance and resilience Collaborate with engineers, PMs, and designers to … ship fast Contribute to system architecture and CI/CD practices What We're Looking For Experience building backend systems with Python (FastAPI, Flask, or Django) Solid understanding of microservices, cloud infrastructure, and APIs Familiar with SQL/NoSQL, version control (Git), and CI/CD pipelines Strong fundamentals: data structures, OOP, debugging Curious, collaborative, and eager to leverage AI More ❯

to expand their well-established career, who is excited about solving complex problems and ownership, and who enjoys working with technologies like Python, Typescript, GraphQL, AWS, and Frameworks like FastAPI and React. What You'll Do Build scalable web applications utilizing open-source tools and technologies Build and use REST and GraphQL APIs Be able to work independently while communicating … or solution fragility Requirements 7+ years of professional experience building scalable and reliable web applications is required 5+ years of experience with Python and Python web frameworks (Django, Flask, FastAPI, etc ) 5+ years of experience with front-end technologies, such as JavaScript, Typescript, and React Able to create database schemas that represent and support business processes Unit test and debugging … MySQL or PostgreSQL Independent, self-managed and motivated Good command of the English language Nice to Have Experience with any of the following would be a plus: GraphQL, React, FastAPI, AWS (or any other Cloud provider) A bachelor's degree in computer science, engineering, or information systems Veeva's headquarters is located in the San Francisco Bay Area with offices 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 ❯

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 ❯

ll work both independently and as part of a collaborative team to deliver end-to-end features and drive technical improvements across our modern Java (Spring Boot) and Python (FastAPI) stack both on Kubernetes and Serverless. Your responsibilities will include everything from working with SREs to define cloud infrastructure using Terraform, to building and testing backend services, and integrating with … platform. You’ll be expected to support and mentor junior engineers, helping to foster growth and maintain high engineering standards across the team. A strong understanding of Spring Boot, FastAPI, GCP, Jenkins, and scalable cloud systems is essential. You’ll also work closely with our SREs to shape our internal Platform-as-a-Service on Google Cloud Platform (GCP). … the cloud infrastructure. Java - Advanced knowledge and experience of core Java design and development alongside Spring Boot framework. Python - Advanced knowledge and experience of Python design and development alongside FastAPI framework. Terraform - Good knowledge/experience of Terraform to define and manage cloud resources. Google Cloud Platform (GCP): Good working knowledge of GCP services and architecture for designing and deploying More ❯

will be on designing and implementing innovative features to create a market-leading, scalable, and secure platform. Key responsibilities: Backend Development: Develop scalable and secure applications using Python with FastAPI on the backend. Design and implement reusable, modular code for both client and server-side components. API & Microservices Design: Define and build RESTful APIs and microservices using FastAPI that are … by prioritizing customer needs and feedback throughout the development process. Demonstrate enthusiasm, resilience, and a can-do approach to tackling challenges and driving success. Skills & Abilities: Expertise in Python , FastAPI , SQLAlchemy . Proficiency with containerization tools like Docker and infrastructure-as-code tools such as Terraform . Familiarity with OCPP/OCPI protocol integration . Experience designing scalable APIs and More ❯

scalable web applications using Node.js and React. Deployment & Cloud Management: Deploy and manage applications on AWS Cloud, utilizing serverless architecture. API Development: Design, implement, and optimize RESTful APIs using FastAPI (Python optional) and other modern frameworks. Automation & Scripting: Build automation tools to streamline development processes. Problem-Solving & Debugging: Analyze complex problems, identify root causes, and implement efficient solutions. Collaboration & Communication … Looking For Proficiency in Node.js, React, and AWS Cloud. Experience with serverless applications and cloud infrastructure. Strong problem-solving skills and ability to quickly learn new technologies. Familiarity with FastAPI, Python, and scripting is a plus. Understanding of modern software development practices (CI/CD, testing, Git). Excellent communication and collaboration skills. Adaptability and a proactive, solution-oriented mindset. More ❯

meet you. Responsibilities Build, manage, and optimize backend systems and APIs supporting AI/ML workloads. Support and maintain robust data and ML pipelines, ensuring scalability and reliability. Develop FastAPI-based microservices leveraging Python async patterns. Manage state and flow tracking using Redis and MongoDB, optimizing performance and persistence layers. Integrate with LLMs (LLaMA, OpenAI, Anthropic) and support vector database … Datadog . Proven experience collaborating with cross-functional stakeholders Experience with systems serving at scale (at least500k+ users) Startup mindset: proactive, adaptive, and comfortable navigating ambiguity Nice to Have FastAPI for building async APIs and microservices. Familiarity with Scala or willingness to learn it. Experience with Kubernetes or other orchestration tools. Prior work in AI/ML-focused product teams 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 ❯

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 ❯

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 ❯

the focus will be on designing and implementing innovative features to create a market-leading, scalable, and secure platform. Key responsibilities: Develop scalable and secure applications using Python with FastAPI on the backend. Design and implement reusable, modular code for both client and server-side components. API & Microservices Design: Define and build RESTful APIs and microservices using FastAPI that are … by prioritizing customer needs and feedback throughout the development process. Demonstrate enthusiasm, resilience, and a can-do approach to tackling challenges and driving success. Skills & Abilities: Expertise in Python , FastAPI , SQLAlchemy . Proficiency with containerization tools like Docker and infrastructure-as-code tools such as Terraform . Familiarity with OCPP/OCPI protocol integration . Experience designing scalable APIs and More ❯

by revolutionary, tech-focused Company! This is a challenging, key role developing scalable, high-quality, enterprise-grade products and mentoring peers Essential: Strong experience in Python backend development (Flask, FastAPI, or similar) Proven ability to design and build REST APIs. Hands-on experience with Google Cloud Platform (GCP) Proficiency with containerisation tools like Docker/Kubernetes Experience with CI/ More ❯

Develop comprehensive unit and integration tests to ensure the reliability and accuracy of our AI retrieval systems. API development : Build and maintain REST and GraphQL APIs using frameworks like FastAPI and Flask to expose our AI retrieval capabilities to other services and applications. Streaming and cancelable endpoints : Implement streaming responses and cancelable endpoints to support real-time and interactive use … using tools like tracemalloc and cProfile to identify and optimize memory usage and performance bottlenecks. API development : Experienced in developing and maintaining REST and GraphQL APIs using frameworks like FastAPI and Flask. Streaming responses and cancelable endpoints : Capable of implementing streaming responses and cancelable endpoints to support real-time and interactive use cases. Preferred skills and experience Machine learning experience 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯