1 to 25 of 34 Remote/Hybrid FastAPI Jobs in London

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 ...

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 . GenAI Frameworks : Familiarity ...

What We're Looking For Essential Professional Python development experience Strong understanding of software design patterns and engineering principles Experience with frameworks such as FastAPI, Django, or Flask Solid knowledge of RESTful APIs and distributed systems Experience working with relational and NoSQL databases Strong testing experience (PyTest, unit, integration ...

Redux, Zustand, Jest, Cypress. Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django Channels, Flask, RESTful APIs. Databases & Storage: PostgreSQL, MS SQL Server, MongoDB, Firestore, BigQuery, Azure Blob Storage. Cloud & DevOps: Azure (App Services, OpenAI ...

training, testing and evaluation Prompt Engineering and AI workflow optimisation Programming & Frameworks Strong Python development skills PyTorch TensorFlow Scikit-Learn LangChain LangGraph Hugging Face FastAPI REST APIs Data Technologies SQL NoSQL Databases Data Modelling ETL Development Data Pipeline Engineering Vector Databases such as Pinecone, Weaviate or ChromaDB Cloud & DevOps Experience ...

training, testing and evaluation Prompt Engineering and AI workflow optimisation Programming & Frameworks Strong Python development skills PyTorch TensorFlow Scikit-Learn LangChain LangGraph Hugging Face FastAPI REST APIs Data Technologies SQL NoSQL Databases Data Modelling ETL Development Data Pipeline Engineering Vector Databases such as Pinecone, Weaviate or ChromaDB Cloud & DevOps Experience ...

your primary language Solid understanding of software engineering principles (SOLID, testing, clean code) Experience with AWS cloud services Hands-on experience with Django, FastAPI and/or Flask Strong REST API development and integration experience Experience working within Agile/Scrum teams Excellent communication and problem-solving skills Nice ...

engineers and leading technical projects Comfortable working in fast-paced startup environments Experience with AI/LLM integrations is highly desirable Python backend experience (FastAPI, Flask, Django) is beneficial Excellent communication and stakeholder management skills This role offers hybrid working, with an office location based in London. For any additional ...

stores, RAG, and LLM integration/fine-tuning (OpenAI, LLaMA, Cohere, etc.) Strong coding in Python and experience with frameworks/tools such as FastAPI, PyTorch/TensorFlow, MLflow; 3-5+ years of experience in designing and developing scalable web applications using modern front-end frameworks such as React ...

portfolio analytics capability Improve data quality, reconciliation processes and reporting frameworks Skills & Experience 3–5 years' software development experience Strong Python development skills with FastAPI, Flask or Django Experience building full-stack applications using React, JavaScript/TypeScript and Node.js Knowledge of GitHub, CI/CD, automated testing and Agile ...

LangChain, LangGraph, Agent Development Kit or similar agent frameworks · Experience with vector databases such as Pinecone, Chroma or similar · API development experience, ideally with FastAPI or similar frameworks · Knowledge of MLOps, LLMOps, CI/CD or production deployment practices · Experience designing or supporting evaluation frameworks for AI or agentic systems ...

PyTest, JUnit, etc.). Attributes Need to Haves: C++ - Strong understanding of multithreading, asynchronous programming, network protocols Advanced knowledge of Python and related frameworks (FastAPI, NumPy, Pandas, Pydantic) including multithreading and parallel design principles. Understanding of AWS, including knowledge of Cognito, Pinpoint, IoT, MSK and other services. Deep understanding ...

challenges regularly We're united by our mission, focused execution, and speed We deploy to production multiple times a day 🛠️ Tech Stack Backend: Python (FastAPI) + Typescript (express) Frontend: React + Typescript Infrastructure: AWS (serverless!), terraform Containerisation: Docker Database: PostgreSQL + DynamoDB CI/CD: GitHub actions + Blacksmith runners ...

pensions covenant/advisory/trustee-facing tools, and strong ability to connect technical design to covenant outcomes. Experience with Python-based services (e.g., FastAPI) and modern web stacks (e.g., Next.js/React.js) in real-world delivery. Practical experience delivering GenAI/agentic solutions (prompt engineering, RAG, governance patterns ...

Fordham use. The successful candidate will be expected to work with the following core technologies: Programming: Python, JavaScript, TypeScript, SQL, C#, C++ Frameworks & Tools: FastAPI, Jupyter, JupyterHub, Voila, Power BI, GitHub, Vue, Nuxt AEC Platforms & Standards: Revit, Revit API, pyRevit, Rhino, Grasshopper, IES VE (and it’s Python ...

comparisons) Sharing our data and services externally (e.g., via APIs) so that others can build upon our work Tech Stack: APIs & backend: Python, FastAPI, PostgreSQL Data & infrastructure: Snowflake, Docker, AWS (ECS, S3, etc.), Pulumi, Prefect, GitHub Actions Search: Vespa Data Science: PyTorch, Huggingface, Pydantic AI, Pandas, Spacy, Weights & Biases About ...

join on an initial 12-month contract basis. What you'll need to succeed : Extensive hands-on Python Development experience building REST APIs with FastAPI or similar. Strong quantitative background - must have. Strong experience with Pandas, NumPy, and/or SciPy. Good experience with time series or market data models. ...

time, and a genuine investment in making developers better at their craft. The ideal candidate will have: Strong commercial Python development experience Experience with FastAPI or similar frameworks (Django, Flask) Experience with using Claude Code or Cursor Experience with data warehousing (Snowflake) Nice to haves: Experience with asyncio or modern ...

from Principal Engineers and senior technical leaders The ideal Software Engineer will have commercial experience with Python and frameworks such as Django, Flask or FastAPI, alongside a genuine interest in building high-quality products and developing their technical craft. Software Engineer | Python Engineer | Backend Engineer | Software Engineer ...

productivity across the bank. This role is perfect for someone who enjoys combining modern software engineering with emerging AI technologies. Tech & Projects Include: Python (FastAPI/Flask) JavaScript, REST APIs & SQL Server AI & LLM applications RAG pipelines & agentic AI workflows Locally hosted open-source LLMs Microsoft Power Platform LangChain, LangGraph ...

Maintain high-quality technical documentation and engineering standards. Required Experience Technical Skills 8+ years of commercial backend engineering experience. Strong Python development experience, including FastAPI, Flask or similar frameworks. Proven experience building and scaling backend services and APIs. Strong understanding of microservices architectures and event-driven systems. Experience designing … building serverless applications using AWS Lambda. Exposure to Agile delivery environments and Jira. AWS certifications or equivalent cloud certifications. Tech Stack Languages & Frameworks Python FastAPI Flask Cloud & Infrastructure AWS Docker ECS Kubernetes Terraform CloudFormation Architecture Microservices Event-Driven Systems REST APIs GraphQL gRPC Databases PostgreSQL MySQL MongoDB DevOps & Monitoring GitHub ...

retention, and partner with the founders on what the team builds and why. High ownership, high intensity, fast. The stack is Python and FastAPI on the backend, React and TypeScript on the frontend, Postgres, ElasticSearch and vector databases for data, and LLMs, agents and RAG across the AI layer. What ...

ational skills Nice to Have Experience with AI/LLM tools or modern backend frameworks (e.g., LangChain , LangGraph ) and backend service frameworks (e.g., FastAPI ) Familiarity with cloud-native technologies (e.g., Kubernetes) Experience supporting platforms used by multiple , downstream consumer teams Experience managing teams working on internal developer tools or shared ...

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 … 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 ...

leverages graph databases, machine learning, and modern cloud infrastructure to deliver intelligent procurement and customer service solutions. Our stack includes: Backend Services : Python 3.13, FastAPI, async micro-services architecture Data Layer : Neo4j graph database, PostgreSQL, complex data modelling AI/ML : OpenAI integration, semantic search, conversational agents, unstructured data analysis … with observability tools (OpenTelemetry, Prometheus, Grafana) Familiarity with agentic coding workflows — using AI agents to scaffold, refactor, test, and document code autonomously Experience with FastAPI or similar async Python web frameworks Experience with Neo4j or other graph databases Experience with graph algorithms and network analysis Experience with Helm and Kubernetes ...