4 of 4 Remote/Hybrid FastAPI Jobs in the City of London

AI / GenAI Engineer - Investment Banking / Capital Markets

Hiring Organisation
Caspian One
Location
City of London, Greater London, UK
/LLMs: OpenAI API, Hugging Face Transformers, LangChain, Langraph, RAG pipelines Data & Analytics: Pandas, NumPy, Spark, Databricks, Hadoop, Vector Databases, Snowflake Model Deployment: MLflow, FastAPI, Flask, Docker, Kubernetes Cloud & Infrastructure: AWS, Azure, GCP CI/CD pipelines (GitLab, Jenkins) Desirable Skills Experience with prompt engineering, fine-tuning LLMs, and building ...

Backend Engineer

Hiring Organisation
Dex
Location
City of London, London, United Kingdom
high-value problem-solving, validating automated outputs, and solving complex integration challenges. Build and own core backend features and critical API integrations (Python, FastAPI, SQL). Design and implement complex data pipelines and workflows using tools like Dagster and Temporal. Validate and harden accelerated workflows, ensuring generated code meets production ...

Lead AI Engineer

Hiring Organisation
Euphoric
Location
City of London, London, United Kingdom
benchmark these systems rigorously to ensure they actually work, not just "feel" smart. Build the Backend Foundation: You will spend significant time in Python (FastAPI, SQLAlchemy) building the APIs, data structures, and services that power the product. You are an engineer who ensures the "AI" is delivered on reliable, production … Experience Production Engineering (5+ years): You are a strong software engineer first. You have extensive experience building and maintaining backend services in Python (ideally FastAPI or similar async frameworks) deployed to modern cloud providers (GCP/AWS) or point solutions (Railway, Render, Vercel) Applied AI Architecture: You have built complex ...

Full-Stack Engineer - Workflow & Systems Integration SC Cleared

Hiring Organisation
Reed
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£95,000 - £120,000 per annum, Inc benefits
someone who enjoys early-phase product building, systems design, and rapid iteration in a regulated-data environment. Key Responsibilities: Build backend services using Python (FastAPI, async frameworks, Pydantic). Develop and maintain event-driven workflows and orchestration logic. Design and implement API integrations with internal and external systems, including … planning, and core technical strategy. Apply best practice for regulated data handling and secure engineering standards. Must-Have Experience: Strong Python engineering experience, including FastAPI, async programming, and Pydantic. Proven experience working in start-ups (seed to early-growth mandatory). Experience working with regulated or sensitive data (healthcare, government ...