51 to 75 of 91 Permanent FastAPI Jobs

Back End Developer

Hiring Organisation
Omnis Partners
Location
London Area, United Kingdom
Role • Building ETL/ELT pipelines to ingest and transform data • Designing and optimising SQL schemas and queries • Developing REST APIs using Python (FastAPI) • Monitoring and debugging data pipelines and platform performance • Ensuring secure handling of sensitive data (GDPR/PII) 🎯 We’re looking for someone with 👉 Strong Python engineering ...

Full Stack Engineer

Hiring Organisation
Stoneborn Technologies
Location
City of London, London, United Kingdom
maintainable code and hold others to the same standard Proficiency in TypeScript + Python and comfort working across the stack Hands-on experience with FastAPI in production environments Familiarity with AWS and comfort deploying and operating cloud infrastructure Ability to reason about systems end-to-end, from data model ...

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 ...

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 £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 ...

Python Developer FastAPI SQL Data

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
Python Developer/Backend Software Engineer (FastAPI SQL Data) London to £95k Are you a data centric Python Developer with strong SQL and FastAPI skills? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing … collaborative and pragmatic with great communication skills Apply now to find out more about this Python Developer/Backend Software Engineer (Python FastAPI Data Azure) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal ...

Artificial Intelligence Engineer

Hiring Organisation
KennedyPearce Consulting
Location
London Area, United Kingdom
secure production systems Owning evaluation frameworks, regression testing and systematically reducing hallucinations and failure modes Building typed, well tested backend services in Python with FastAPI and strong observability You will be encouraged to leverage modern AI coding tools such as Cursor, Windsurf and Copilot, but with strong engineering judgement. ...

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: £90k – £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: £90k – £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: £90k – £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: £90k – £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
Central London / West End, London, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: £90k – £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. 🔑 The Role • Building backend APIs in Python (FastAPI ideally) • Working with PostgreSQL • Deploying services into AWS (EKS preferred) • Managing container workloads in Kubernetes • Building infrastructure with Terraform • Implementing CI/CD pipelines (GitHub … Actions, GitLab, Jenkins, ArgoCD) • Shipping production-grade cloud-native applications 🎯 What We’re Looking For 👉 Strong Python backend development experience 👉 API development (FastAPI highly desirable) 👉 Solid SQL/PostgreSQL knowledge 👉 AWS experience (EKS ideal) 👉 Kubernetes deployment experience 👉 Terraform (Infrastructure as Code) 👉 CI/CD automation experience Nice to have: 👉 Experience ...

Back End Developer

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

Python Developer

Hiring Organisation
ADLIB
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
Join a small, skilled engineering team where your work has impact. Shape and develop a product used by major consumer brands. Python, FastAPI, Linux. We’re looking for a Python Developer to join a development team and help build out a fast-growing SaaS product. This role is about ownership … Central Bristol office. What experience you’ll need to apply Python. Excellent backend development skills, including APIs, automation and CLI tools. Experience with FastAPI (or Django/Flask). Strong Linux experience and background using it for development, testing and deployment. SQL and NoSQL experience, ideally including SQLite and DynamoDB. ...

Senior Software Engineer

Hiring Organisation
SR2
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £140,000 per annum, Negotiable
London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django - ideally a blend of 2) Frontend: React, TypeScript Cloud Systems: GCP or AWS Are you a software engineer who enjoys shipping real products … impact without layers of process getting in the way. What you will be doing: Designing, building, and maintaining backend services and APIs using Flask & FastAPI Building and evolving user facing web components using React/TypeScript Integrating third party services and AI models into production workflows Investigating production issues ...

Python Developer- Kubernetes & Postgre or MongoDB

Hiring Organisation
Vallum Associates
Location
Sheffield, England, United Kingdom
Job Title: Python Developer- Kubernetes & Postgre or MongoDB Location: Sheffield- 3Days/week Onsite Duration: 6months+ Contract Inside IR35 450GBP/Day Job Description: Python developer responsible for building scalable automation solutions to streamline database ...

Software Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum
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 ...

Python Developer FastAPI SQL Data

Hiring Organisation
Client Server
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
Python Developer/Backend Software Engineer (FastAPI SQL Data) London to £95k Are you a data centric Python Developer with strong SQL and FastAPI skills? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing ...

Backend Engineer (AI Platform) - London

Hiring Organisation
Revax
Location
London, England, United Kingdom
workflows. What You’ll Do Build & own core backend systems · Build and optimise databases for complex, real-world data · Design and implement APIs using FastAPI for AI workflows and product features · Build and scale LangGraph-based multi-agent systems with checkpointing, retries, and observability · Integrate and scale vector search, knowledge … real customer usage and feedback What We’re Looking For Essential · 2-3 years building backend systems for real users · Production experience with FastAPI (or similar modern Python frameworks) · Solid understanding of API design, PostgreSQL, and distributed systems fundamentals · Experience deploying and operating services on cloud infrastructure ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
London Area, United Kingdom
enjoy solving difficult systems problems and building software that actually holds up in the real world, this is a rare opportunity. Tech stack Python (FastAPI, Django or Flask) - experience across Rust, Golang, C++ useful AWS (experience with Azure or GCP also useful) Cursor and Claude Code SQL and strong database … Direct influence on product and technical direction If this sounds interesting, get in touch: imogen@sr2rec.co.uk Senior Software Engineer | London | £120k to £160k | Python | FastAPI ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
Python | React Location: London (hybrid) Salary: £80,000 – £150,000 + meaningful equity Hiring for mid-senior-lead levels! Tech Stack: Backend: Python (Flask, FastAPI) Frontend: React, TypeScript Cloud: GCP or AWS Do you like building software that actually gets used? Not demo-ware. Not slide-ware. Real systems … Just smart people building important things properly. What you’ll be doing: Designing and scaling backend services and APIs in Python using Flask and FastAPI Building intuitive, high quality front end experiences in React and TypeScript Integrating AI models and third party systems into robust production workflows Owning features ...

Product Engineer

Hiring Organisation
Affinity Labs
Location
City of London, London, United Kingdom
architecture across the portfolio. Essential Requirements 3-6+ years building production-grade full-stack applications, with clear ownership. Strong backend experience in Python (FastAPI preferred) and solid database skills (PostgreSQL/MongoDB). Proven experience building and shipping mobile apps with React Native. Strong React fundamentals (Next.js experience … Security hygiene (secrets, permissions, least-privilege) and practical data-privacy basics. Planning & execution in Linear (or similar). Tools & Stack Backend/Runtime: Python (FastAPI), Node.js. Frontend : React/Next.js Mobile: React Native Datastores: PostgreSQL, MongoDB (as appropriate), Redis (caching/sessions). Vectors/Embeddings: Chroma (or similar). ...