1 to 25 of 29 Permanent 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/ ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation ...

where your work directly influences how global delivery works. The Stack We work at the frontier of software engineering and AI: Backend: Python + FastAPI Frontend: React Infra: Azure (infra-as-code, CI/CD, observability) AI Stack: LLM pipelines for agentic codegen, testing, and self-healing interfaces What ...

Continuously improve systems, processes, and infrastructure to enhance scalability, performance, and delivery speed. YOUR KEY SKILLS: Strong software engineering background with advanced Python skills (FastAPI or similar) and solid SQL/database expertise. Experience delivering end-to-end software products and designing scalable, cloud-based systems with CI/ ...

Contributing through code reviews, pair programming and technical discussions Building and deploying services on AWS using cloud-native tools and services Tech environment: Python, FastAPI, Django, AWS, Kubernetes, Terraform, PostgreSQL, OpenSearch, GitHub, Helm What were looking for in a Back End Engineer: Strong commercial experience building backend systems in Python ...

Deep experience in MLOps on Azure, including CI/CD, monitoring and scaling pipelines. · Strong coding skills in Python, with frameworks such as PyTorch, FastAPI and Azure CLI. ALL APPLICANTS MUST BE FREE TO WORK IN THE UK Exposed Solutions is acting as an employment agency to this client. Please ...

integrations (Appsflyer, Firebase, sGTM) Design cloud solutions in Azure with alerting and failover Ensure scalability and reliability across global operations Tech Stack: Python (Flask, FastAPI) Azure (Event Hub, Functions, Data Factory) Snowplow Snowbridge APIs (Appsflyer, Firebase, sGTM) JavaScript (GTM tags) Event-driven tools (Kafka, RabbitMQ) Monitoring (Grafana, Prometheus) If this ...

integrations (Appsflyer, Firebase, sGTM) Design cloud solutions in Azure with alerting and failover Ensure scalability and reliability across global operations Tech Stack: Python (Flask, FastAPI) Azure (Event Hub, Functions, Data Factory) Snowplow Snowbridge APIs (Appsflyer, Firebase, sGTM) JavaScript (GTM tags) Event-driven tools (Kafka, RabbitMQ) Monitoring (Grafana, Prometheus) If this ...

tools, and automation platforms like Ansible or Chef. Monitoring systems with Prometheus, Grafana, ELK stack, and running containers with Kubernetes. Building APIs with FastAPI and supporting scalable, high-performance systems. You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change ...

integrations (Appsflyer, Firebase, sGTM) Design cloud solutions in Azure with alerting and failover Ensure scalability and reliability across global operations Tech Stack: Python (Flask, FastAPI) Azure (Event Hub, Functions, click apply for full job details ...

impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of users. Beyond hands-on development, you'll provide technical leadership … automation to enhance productivity across the team. What experience do I need: Strong background building and scaling Python-based systems (FastAPI, Flask, or Django REST). Proven leadership experience in a development environment Solid expertise in microservices, APIs, messaging patterns, and distributed systems. Proficient with cloud platforms (AWS, GCP, Azure ...