19 of 19 FastAPI Jobs in Central London

Software Engineer (AI+Fullstack)

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
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 ...

AI Lead Engineer

Hiring Organisation
167 Solutions Ltd
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Python Technical Lead FinTech

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
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 ...

Applied AI ML Lead - LLM Suite Engineering

Hiring Organisation
J.P. MORGAN
Location
Westminster abbey, United Kingdom
Skills Computer science degree or equivalent practical experience Hands-on experience with system design, application development, testing, and operational stability Proficiency in Python (FastAPI) Experience building microservices and APIs Experience with elastic compute, NoSQL databases, and messaging queues Strong understanding of the Software Development Life Cycle Solid grasp ...

Forward Deployed AI Engineer, Senior Manager

Hiring Organisation
Baringa Partners
Location
Westminster abbey, United Kingdom
record of delivering production Python services and APIs; working knowledge of cloud-native application patterns and release practices. Software Engineering: Production-grade Python services (FastAPI, AWS Lambda, event-driven patterns) and front-end development with React/Next.js, Material UI and SWR. Cloud architecture design capability across major providers; rounded ...

Exposure Management Developer

Hiring Organisation
Eames Consulting
Location
City of London, London, United Kingdom
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 ...

Lead Software Engineer

Hiring Organisation
MARSH CORPORATE SERVICES LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Applied AI ML Senior Associate - LLM Suite Engineering

Hiring Organisation
J.P. MORGAN
Location
Westminster abbey, United Kingdom
Software Development Life Cycle Preferred Qualifications, Capabilities, and Skills Experience implementing GenAI services leveraging Azure OpenAI models and AWS Bedrock Proficiency in Python (FastAPI) Experience building microservices and APIs Experience with elastic compute, NoSQL databases, and messaging queues Proficiency working with large language models and building agents with LangGraph Experience ...

Data Scientist

Hiring Organisation
Third Bridge Group
Location
Westminster abbey, United Kingdom
semantic search, particularly applied to content-rich or document-heavy datasets. Familiarity with building lightweight web applications or data tools such as Streamlit, FastAPI, or Flask, enabling business stakeholders to interact directly with model outputs. Experience with orchestration or transformation tooling such as dbt, Airflow, or Prefect, demonstrating an ability ...

Data Scientist - LDN

Hiring Organisation
Third Bridge Group
Location
Westminster abbey, United Kingdom
semantic search, particularly applied to content-rich or document-heavy datasets. Familiarity with building lightweight web applications or data tools such as Streamlit, FastAPI, or Flask, enabling business stakeholders to interact directly with model outputs. Experience with orchestration or transformation tooling such as dbt, Airflow, or Prefect, demonstrating an ability ...

ML Platform Lead - Synthetic Data

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
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. ...

AI Automation Engineer - Hedge Fund Intelligence - FTC

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
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. ...

Founding Operator

Hiring Organisation
limitless
Location
City of London, London, United Kingdom
messy first implementation into something repeatable by customer three. 📝 🛠️ You'll love this if you: Have a real CS background - comfortable reading Python, TypeScript, FastAPI, writing your own SQL Have already done the engineering thing and want to solve customer problems, not ship features Genuinely like being with people - branches ...

Lead Backend Engineer

Hiring Organisation
Total Recruitment Group
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
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 ...

Artificial Intelligence Engineering Manager

Hiring Organisation
MBN Solutions
Location
City of London, London, United Kingdom
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 ...

Technical Lead

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
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

Hiring Organisation
Reed
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £45,000 per annum, Inc benefits
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 Python Engineer

Hiring Organisation
Lendable
Location
Westminster abbey, United Kingdom
us. If that sounds like you, we can’t wait to hear from you. Our Tech Stack Our stack is built on Python and FastAPI, deployed via Docker and Kubernetes on AWS, with ArgoCD handling our continuous delivery pipeline. What we’re looking for Interest in leading or mentoring … hold others to the same standard Some experience building and maintaining data pipelines, ETL processes, or data-intensive backend services Solid understanding of FastAPI or a comparable modern Python web framework Strong automated testing skills across unit, integration, and functional levels Experience working with cloud infrastructure, ideally AWS, and comfortable ...

Lead Backend Engineer

Hiring Organisation
Total Recruitment Group
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
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 ...