51 to 75 of 102 FastAPI Jobs in the UK

Lead Full Stack Developer

Hiring Organisation
Develop
Location
United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
Senior/Lead Developer (Full Stack) Location: UK - Remote Salary: Up to Β£90k + performance based bonus and package Stack: TypeScript React Next.js Python FastAPI Postgres Azure We're partnering with a fast-growing technology business building modern platforms that empower security teams, analysts, and defenders to protect the organisations ...

Senior Software Engineer (Python/React)

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
Salary: Β£70,000 - Β£140,000 + meaningful equity πŸ™οΈ Location : London, flexible working arrangements, ideally 2/3 days in office πŸ’» Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used ...

Full Stack Engineer

Hiring Organisation
Oliver Bernard
Location
London Area, United Kingdom
Salary: Β£60,000 - Β£85,000 + meaningful equity πŸ™οΈ Location : London, flexible working arrangements, ideally 2/3 days in office πŸ’» Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used ...

Senior Software Engineer

Hiring Organisation
TRIA
Location
Greater Bristol Area, United Kingdom
breakaway type of culture that is committed to pushing technical boundaries. No slow processes & red tape here! The Headlines Tech: Python (Django FastAPI) & JS Front End AI Tooling Cursor, OpenAI Agents SDK contained by Docker, K8’s, Helm Huge Scope for Progression – They’re a seriously ambitious group that have ...

Python Software Engineer / Senior Software Engineer - Quantum

Hiring Organisation
ARCA Resourcing Ltd
Location
Oxford, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
algorithms Familiarity with Rust, C++, or other compiled languages Experience with databases and data pipelines (SQL, PostgreSQL, timeseries data, ETL) Backend development experience (e.g., FastAPI, SQLAlchemy) Experience in image analysis or real-time object detection Experience bridging theoretical models with experimental quantum hardware If you are interested in applying cutting ...

Full Stack Engineer

Hiring Organisation
Omnis Partners
Location
London Area, United Kingdom
Mentor and unblock other engineers through pairing, coaching, and high-signal code reviews. Tech stack & experience: Frontend: TypeScript + React/Next.js. Backend: Python (FastAPI or similar), async/concurrency, API design, operational readiness. Databases: Postgres, data modeling, migrations, query optimization. SaaS authentication & permissions: OIDC/OAuth, JWT, RBAC/ ...

Applied AI Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£140,000 - £150,000 per annum
Role Build full-stack, production AI applications from first architecture through to customer-facing delivery. Develop backend, infrastructure, and frontend components using Python, FastAPI, React, TypeScript, and cloud platforms. Deploy GenAI and LLM-based systems, including evaluation, observability, and agent-based workflows. Operate in cross-functional pods embedded into portfolio ...

Senior Applied AI Engineer, Finance

Hiring Organisation
Richard Wheeler Associates
Location
Central London, London, United Kingdom
Employment Type
Permanent
Rapidly prototype MVPs, validate value with the investment team, and harden the most impactful tools into reliable internal products Build simple internal interfaces using FastAPI, Streamlit, or Next.js to enable intuitive adoption Implement evaluation, observability, and governance to ensure accuracy, reliability, security, and responsible use of AI systems Guide ...

Senior Python Engineer Fast API, MongoDB

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
have been dictated to. What you'll need to succeed We're looking for a Senior Back End Engineer, 5+ years Python supported by FastAPI and MongoDB.A solid grounding in modern system architecture and design patterns. Experience with distributed systems, asynchronous workflows and event driven design. Strong knowledge of relational ...

Senior Machine Learning Engineer - Agentic AI Platform

Hiring Organisation
Robert Half
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
grade systems Hands-on with LLM-powered applications and agent orchestration frameworks (e.g., LangGraph) Experience with stateful systems, caching, and reliability engineering Proficiency in FastAPI, Docker, and Redis Comfortable in a small, senior, high-impact team Why Join? Work on a strategic next-gen AI platform Direct influence on architecture ...

Senior AI Frontend Developer - £650, Outside IR35 - London/Remote

Hiring Organisation
limitless
Location
City of London, London, United Kingdom
shipped end-to-end: from API layer design through to polished UI, not just one side of the stack Exposure to Python and FastAPI when needing to interact with the core backend layer Bonus points for a design thinking or formal UX background, and experience with WhatsApp Business API, Twilio ...

Senior AI Frontend Developer - £650, Outside IR35 - London/Remote

Hiring Organisation
limitless
Location
Altrincham, Greater Manchester, United Kingdom
shipped end-to-end: from API layer design through to polished UI, not just one side of the stack Exposure to Python and FastAPI when needing to interact with the core backend layer Bonus points for a design thinking or formal UX background, and experience with WhatsApp Business API, Twilio ...

Senior AI Frontend Developer - £650, Outside IR35 - London/Remote

Hiring Organisation
limitless
Location
Leeds, West Yorkshire, United Kingdom
shipped end-to-end: from API layer design through to polished UI, not just one side of the stack Exposure to Python and FastAPI when needing to interact with the core backend layer Bonus points for a design thinking or formal UX background, and experience with WhatsApp Business API, Twilio ...

Artificial Intelligence Engineer

Hiring Organisation
Prolo
Location
City of London, London, United Kingdom
production AI and strong technical fluency in TypeScript. AI Frameworks: Hands-on experience with some of the following LangChain/LangGraph, LlamaIndex, PyTorch , and FastAPI . Modern Infrastructure: Experience with AWS Bedrock/SageMaker and using Docker/Kubernetes to scale agent instances. RAG Expertise: Proven experience building RAG systems ...

Senior Full Stack Engineer

Hiring Organisation
Synextra
Location
Birchwood Park, Birchwood, Warrington, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £95,000 per annum
fault-tolerant full-stack architectures, ensuring high availability and resilience across Azure-hosted environments Architect robust backend services in Python using modern frameworks (FastAPI, Pydantic), implementing clean API design, efficient data pipelines, and integration patterns within our Azure ecosystem Establish and enforce best practices for the TypeScript/React frontend … architecting and delivering complex applications from concept to production Expert-level proficiency in Python for backend services and data pipelines, including frameworks such as FastAPI, Pydantic, and async patterns Strong proficiency in TypeScript and React for building production-grade frontends, with solid understanding of state management, performance optimisation, and modern ...

Full Stack Engineer

Hiring Organisation
Searchability (UK) Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
FULL STACK ENGINEER - LONDON (WATERLOO, HYBRID) KEY POINTS Salary up to Β£75,000 Hybrid working - 3 days per week in Waterloo, London Python, FastAPI, PostgreSQL, React or Next.js End-to-end ownership across frontend and backend ABOUT THE CLIENT We're working with an ambitious AI-driven organisation building advanced ...

AI & ML Senior Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
monitoring of models. Support scalable ML solutions across use cases like recommendations, forecasting, and automation. Work with tools like Airflow, Azure ML, and FastAPI to deliver production-ready systems. Automate model deployment workflows using CI/CD tools (e.g. GitHub Actions, Azure DevOps). Contribute to the reliability, observability … Collaborative team player with excellent communication skills. Technical Stack: Languages: Python (primary), SQL, Bash Cloud: Azure, AWS Tools: MLflow, Azure ML, Airflow, Docker, Fargate, FastAPI Data: Snowflake, Delta Lake, Redis, Azure Data Lake Infra & Ops: Terraform, GitHub Actions, Azure DevOps, Grafana, Azure Monitor Desirable skills/knowledge/experience: Knowledge ...

Junior Engineer

Hiring Organisation
Steadrock Capital Limited
Location
London, England, United Kingdom
Steadrock's internal systems: Compute Infrastructure (DGX) Manage our NVIDIA DGX server (Linux environment, CUDA, system health) Build, test, and maintain internal APIs (FastAPI/Flask) Design stable ngrok/reverse-proxy/network connections for remote access Optimise GPU utilisation and monitor performance AI Agent & Automation Development Develop pipelines … What You Need Technical Strong Python Experience with Linux (Ubuntu), bash, SSH Understanding of GPUs, CUDA basics, or willingness to learn fast Experience with FastAPI, Flask or similar Basic networking knowledge (ports, tunnels, proxies) SQL or NoSQL experience Preferred Experience with LLM APIs (OpenAI, Anthropic, DeepSeek, Qwen) Exposure to Docker ...

Senior Data Scientist

Hiring Organisation
Noggin HQ
Location
Newcastle Upon Tyne, England, United Kingdom
Company Description Noggin HQ is a VC-backed financial technology company based in Newcastle upon Tyne. Our mission is to build state of the art models that reshape credit scoring in a fairer and smarter ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: Β£90k – Β£130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company is building ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
East London, London, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: Β£90k – Β£130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company is building ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
City of London, London, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: Β£90k – Β£130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company is building ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
Leeds, West Yorkshire, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: Β£90k – Β£130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company is building ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
Altrincham, Greater Manchester, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: Β£90k – Β£130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company is building ...

Back End Developer

Hiring Organisation
Omnis Partners
Location
City of London, London, United Kingdom
squad. You'll be building backend APIs and deploying them into a modern AWS + Kubernetes environment. πŸ”‘ The Role β€’ Building backend APIs in Python (FastAPI ideally) β€’ Working with PostgreSQL β€’ Deploying services into AWS (EKS preferred) β€’ Managing container workloads in Kubernetes β€’ Building infrastructure with Terraform β€’ Implementing CI/CD pipelines (GitHub … Actions, GitLab, Jenkins, ArgoCD) β€’ Shipping production-grade cloud-native applications 🎯 What We’re Looking For πŸ‘‰ Strong Python backend development experience πŸ‘‰ API development (FastAPI highly desirable) πŸ‘‰ Solid SQL/PostgreSQL knowledge πŸ‘‰ AWS experience (EKS ideal) πŸ‘‰ Kubernetes deployment experience πŸ‘‰ Terraform (Infrastructure as Code) πŸ‘‰ CI/CD automation experience Nice to have: πŸ‘‰ Experience ...