13 of 13 FastAPI Jobs in the South East

computer science or related fields Expertise in Python, including popular Python libraries: NumPy, Pandas, PySpark and frameworks: Django, Django Rest Framework, FastAPI Hands-on experience with both relational (e.g. PostgreSQL) and non-relational databases (e.g. Elasticsearch, Redis) Extensive experience in data warehousing architecture, big data processing and ETL Demonstrable expertise ...

permanent Key Responsibilities Yourresponsibilitieswillinclude, but not limited to: Backend architecture &APIs (primary focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput workloads. Build well-versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward compatibility. Implement authentication ...

experience in a meaningful business domain. Contribute across the tech stack: You'll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ML work. Live on the cutting edge ...

capabilities , including: Large Language Models (LLMs) Retrieval-Augmented Generation (RAG) AI agents and orchestration workflows Designing and maintaining backend services and APIs (primarily Python, FastAPI/Flask) Building and scaling data pipelines and search systems using: ElasticSearch, Weaviate, Pinecone, and other vector databases Engineering secure, containerised architectures using Docker ...

Exposure to cloud platforms (Azure, AWS, or GCP). Understanding of CI/CD pipelines and testing practices (TDD). Desirable Skills Python and FastAPI for backend development. Experience with AI-assisted development tools and AI agents. Awareness of Model Context Protocol. Experience working with Figma or collaborating from design ...

with GraphQL, OpenAPi spec, JSON Schema & SQL/No SQL databases. Familiarity with MonoRepo project structures (TurboRepo) Development of APIs with Python Frameworks e.g. FastAPI Benefits Diamond offers an exceptional benefits package to support staff in achieving a positive work/life balance. This includes 26 days annual leave plus ...

Quant Dev or Systematic Trading environment at a top fund or bank. Coding Mastery: Expert proficiency in Python (Polars/Dask/FastAPI) and/or C++. AI Native: Proven ability to use LLMs and Machine Learning to solve complex financial time-series problems. Industry Standard Experience: You have worked ...

Job Title: AI/ML Engineer – Data Science Location: United Kingdom (Remote/Hybrid) Eligibility: Permanent UK Citizenship required Experience: 5–7 years (Mandatory in Data Science/AI-ML) Role Overview We are seeking ...

Job Title: AI/ML Engineer – Data Science Location: United Kingdom (Remote/Hybrid) Eligibility: Permanent UK Citizenship required Experience: 5–7 years (Mandatory in Data Science/AI-ML) Role Overview We are seeking ...

This is a hands-on role focused on delivering high-quality user experiences in React and TypeScript while building and extending the Python/FastAPI services that power the platform. You will work closely with product and design to translate Figma concepts into production-ready interfaces such as real-time … personalised care flows, ensuring they feel intuitive while meeting the demands of a regulated environment. On the backend, you will develop and extend FastAPI services, design clean REST APIs, and work with PostgreSQL and SQLAlchemy to manage structured data. You will also contribute to implementing OAuth2 authentication across the stack ...

Lead Python Engineer | Python, FastAPI, Start-up | Remote, £90-105k I'm working with a well-funded, mission-driven healthtech company building innovative technology that makes healthcare more accessible and easier to use. They're scaling their engineering team as they expand their platform across the UK and internationally. … with real influence over architecture, standards and delivery. What you'll be doing: Owning backend architecture across core services Designing and maintaining scalable APIs (FastAPI) Building production-grade Python services (async where appropriate) Driving standards around testing, CI/CD, observability and performance Partnering closely with product, mobile ...

BACKEND ENGINEER - LONDON (WATERLOO, HYBRID) KEY POINTS Salary up to £75,000 Hybrid working - 3 days per week in Waterloo, London Python, FastAPI, PostgreSQL, AWS & Docker Building real-time AI solutions within the sports industry ABOUT THE CLIENT We're supporting a rapidly growing, AI-focused organisation operating within … time data systems Fast-paced, collaborative engineering environment THE BACKEND ENGINEER ROLE: You'll design, build, and maintain high-performance APIs using Python and FastAPI, working with large volumes of live sports data. The systems are real-time and data-heavy, so experience with asynchronous programming and scalable backend architecture ...

understand the trade-offs between speed, cost, and model performance. Design, implement, and productionise multi-agent LLM systems that reason, plan, and coordinate. Develop FastAPI-based microservices optimised for low latency and high reliability. Engineer and evaluate RAG pipelines: hybrid retrieval, re-ranking, grounding, and context validation. Integrate real-time … model-faithfulness metrics. What we're looking for Proven ability to build and ship agentic or multi-agent frameworks into production. Expert Python, FastAPI, and asyncio developer. Practical experience with LangChain, Autogen, or custom orchestration layers. Startup mindset: ownership, speed, and pragmatism over perfection. Bonus points Experience working with voice ...