1 to 25 of 33 FastAPI Jobs in Central London

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 ...

technical roadmap, guide architectural decisions, and ensure engineering excellence across backend services. Python Engineering Design and build robust, secure, and scalable microservices using Python (FastAPI, Django, Flask). System Architecture Lead the design of distributed systems, event-driven architectures, and high-availability platforms. Team Mentorship Coach engineers, conduct code reviews ...

handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance optimization Working knowledge of Unix/Linux ...

handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance optimization Working knowledge of Unix/Linux ...

quality and analytical outputs. Skills and Experience · 3–5 years’ software development experience, with strong Python skills and knowledge of scalable architecture. · Experience with FastAPI, Flask or Django, plus React, JavaScript or TypeScript, and Node.js. · Familiarity with Git, CI/CD, automated testing and Agile delivery. · Knowledge of Databricks, Lakehouse ...

quality and analytical outputs. Skills and Experience · 3–5 years’ software development experience, with strong Python skills and knowledge of scalable architecture. · Experience with FastAPI, Flask or Django, plus React, JavaScript or TypeScript, and Node.js. · Familiarity with Git, CI/CD, automated testing and Agile delivery. · Knowledge of Databricks, Lakehouse ...

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 ...

with the founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products ...

with the founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products ...

days on paper, currently much more flexible) • Location: Tower Hill, London • Tech stack: Python, GCP, Vertex AI, Kubernetes (GKE), Kubeflow, Docker, Terraform/Pulumi, FastAPI, PostgreSQL, BigQuery, PyTorch, LLMs, Vector Databases • Visa sponsorship: cannot sponsor Interested? Please apply below. ...

good knowledge of cloud based services (they use GCP but AWS or Azure experience is fine) You have experience of building APIs, ideally FastAPI experience You have a good knowledge of CI/CD, testing and deployment You have a thorough understanding of Computer Science fundamentals such as OOP, Data ...

bonus • Working: 3 days in office (Hybrid, Goodge Street, London) • Note: First one month will be 5 days onsite • Tech stack: Python, SQL, APIs, FastAPI, Streamlit, TypeScript, React, Next.js • Visa: This role cannot sponsor Interested? Please apply below. ...

Lead Backend Engineer Climate Tech Nonprofit £90-£95k per year London Hybrid 2 days in London/3 remote Python FastAPI PostgreSQL GCP Docker Terraform Climate impact Energy-system modelling Backed by major philanthropic funders Im working with a climate-tech nonprofit building software that helps countries plan cleaner, more ...

select AI technologies (open-source and commercial) and define enterprise deployment patterns Lead design of API-based AI services and scalable backend systems (e.g. FastAPI) Ensure robust integration of AI systems into complex banking and capital markets environments Establish and govern evaluation frameworks for AI and agent-based systems Oversee … experience building and scaling agentic AI systems Strong experience with AI system design, architecture, and distributed systems Expertise in API-based backend development (e.g. FastAPI or similar) Experience with vector databases (e.g. Pinecone, Chroma) Experience with agent frameworks (e.g. LangChain, LangGraph, or similar) Strong understanding of evaluation frameworks ...

select AI technologies (open-source and commercial) and define enterprise deployment patterns Lead design of API-based AI services and scalable backend systems (e.g. FastAPI) Ensure robust integration of AI systems into complex banking and capital markets environments Establish and govern evaluation frameworks for AI and agent-based systems Oversee … experience building and scaling agentic AI systems Strong experience with AI system design, architecture, and distributed systems Expertise in API-based backend development (e.g. FastAPI or similar) Experience with vector databases (e.g. Pinecone, Chroma) Experience with agent frameworks (e.g. LangChain, LangGraph, or similar) Strong understanding of evaluation frameworks ...

those in a tech lead or staff engineer role - Python and TypeScript/Node, with solid React/Next.js and NestJS/FastAPI experience - PostgreSQL, including schema design, query performance, ETL/ELT, and analytical workloads at scale - LLM/AI features shipped to production users, covering evals, guardrails, prompt … Tech Lead, Technical Lead, Staff Engineer, Principal Engineer, Private Credit, Private Markets, Capital Markets, AI Platform, Analytics Platform, Python, TypeScript, Node.js, React, Next.js, NestJS, FastAPI, PostgreSQL, pgvector, LangChain, LangGraph, LiteLLM, AWS, LLM, Fintech, Greenfield, Remote, Hybrid/Remote, Contract ...

Software Developer Annual Salary: £40k - £45k, dependent on experience Location: Cannon Street, London Job Type: Permanent - 4 days a week onsite Start Date: Immediately A new exciting permanent opportunity, for a Software Developer to join ...

Lead Backend Engineer Climate Tech Nonprofit £90-£95k per year London Hybrid 2 days in London/3 remote Python FastAPI PostgreSQL GCP Docker Terraform Climate impact Energy-system modelling Backed by major philanthropic funders Im working with a climate-tech nonprofit building software that helps countries plan cleaner, more … Could be a strong fit if you: 7+ years of experience in back-end software development Have strong Python backend experience Have worked with FastAPI, Django or Flask Are comfortable with PostgreSQL, APIs, cloud infrastructure and CI/CD Have some technical leadership or line-management experience Enjoy mentoring engineers ...