1 to 25 of 29 FastAPI Jobs in Central London

Senior Software Developer (Full Stack)

Hiring Organisation
Reed
Location
Holborn, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum, Inc benefits
years of commercial software development experience. Proven success in high-performing engineering teams within fast-paced environments. Deep expertise in: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform ...

Senior Full Stack Developer

Hiring Organisation
Glite Tech
Location
City of London, London, United Kingdom
scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills ๐Ÿ‘Œ Can speak, or learning to speak, more than one language Experience with real-time databases. Experience with in-memory databases. Experience ...

Founding Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, London, United Kingdom
Essential: 5+ years in high-impact, early-stage product teams: you've shipped and scaled full stack products Strong backend (Node.js, Python/Flask, FastAPI) and frontend (React, Next.js, Vue) fundamentals ML/data science proficiency: Python, SQL, pandas, scikit-learn, PyTorch/TensorFlow Experience with cloud platforms ...

Full Stack Engineer

Hiring Organisation
BioTalent
Location
City of London, London, United Kingdom
include: Building and maintaining backend services in Python , including APIs and data-processing pipelines Developing frontend applications using Next.js and React Designing and implementing FastAPI endpoints for data-intensive application Writing robust tests using pytest and managing CI workflows via GitHub Actions Collaborating with engineers and researchers to deliver features ...

Python Developer

Hiring Organisation
Arrows
Location
City of London, London, United Kingdom
with Product and cross-functional domain experts Continuously improve performance, quality and developer experience What Weโ€™re Looking For Strong Python (Flask moving to FastAPI with Typing) backend experience Proven experience building APIs within service-oriented architectures Solid SQL knowledge PostgreSQL AWS (Lambda, ECS) Docker Strong system design and data ...

Back End Developer

Hiring Organisation
trg.recruitment
Location
City of London, London, United Kingdom
compliance in production systems Improving performance, scalability, and system resilience The ideal candidate will: 5+ years of backend engineering experience Strong Python experience (FastAPI, Flask, or Django) Have experience working at a previous startup/scale up Solid knowledge of PostgreSQL and Redis Experience with async task queues and message ...

Research Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
graduates or more senior engineers Infrastructure or deployment experience (AWS, Terraform) is a bonus Happy working onsite five days per week Tech stack Python, FastAPI React, TypeScript Postgres AWS, Terraform Compensation & details up to ยฃ185k base + equity (flexible for exceptional profiles) Visa sponsorship available Standard pension Five meals ...

Software Engineer (Frontend)

Hiring Organisation
Orchestra
Location
City of London, London, United Kingdom
challenges regularly We're united by our mission, focused execution, and speed We deploy to production multiple times a day ๐Ÿ› ๏ธ Tech Stack Backend: Python (FastAPI) + Typescript (express) Frontend: React + Typescript Infrastructure: AWS (serverless!), terraform Containerisation: Docker Database: PostgreSQL + DynamoDB CI/CD: GitHub actions + Blacksmith runners ...

Data Engineer

Hiring Organisation
Above & Beyond - Climate Tech Recruitment
Location
City of London, London, United Kingdom
data engineering service providers for deep domain work like concept modelling or high-volume data integration. Tech stack: Languages: python (pandas, httpx, sdmx, pydantic, FastAPI, FastMCP, ADK), SQL (ISO Graph Query Language would be a plus) Cloud: Google Cloud Platform (Cloud Run, Cloud Build, BigQuery, Spanner Graph, Cloud SQL, Cloud ...

AI Consultant

Hiring Organisation
Stealth IT Consulting Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
products in production - Curiosity, creativity, and a drive to unlock real business value with AI Tech my client works with: Python, React/Next.js, FastAPI/Django, Azure/GCP, OpenAI, LangChain, CrewAI, and more. If you want to push the boundaries of AI in consulting, this is your place ...

Python Developer

Hiring Organisation
Thyme
Location
City of London, London, United Kingdom
field) 1-2+ years of relevant work experience using Python and related tech stack in a professional environment Any of the following: Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes experience and knowledge Experience in a Fintech or Financial services organisation is a nice to have, but not essential Clear communication ...

GenAI Engineer - Global Beauty Brand

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
teams Key Details โ€ข Salary: up to ยฃ85k + 10% bonus โ€ข Working model: Hybrid London (2โ€“3 days in office) โ€ข Tech stack: Python, GCP (preferred), FastAPI, LangChain/LangGraph, CI/CD โ€ข Visa sponsorship: Not available Interested? Please apply below. ...

Founding Engineer

Hiring Organisation
Omnam Investment Group
Location
City of London, London, United Kingdom
ability to execute independently in a fast-moving environment Skillset We Value Proficiency in Python, Typescript, or similar modern languages Experience with backend frameworks (FastAPI, Django, Node.js, Rails, etc.) Strong SQL, data modeling, and database design knowledge Familiarity with IaC, containers, CI/CD, and observability tools Bonus : experience ...

Senior Software Engineer (Python/React)

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
Salary: ยฃ70,000 - ยฃ140,000 + meaningful equity ๐Ÿ™๏ธ Location : London, flexible working arrangements, ideally 2/3 days in office ๐Ÿ’ป 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 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 ...

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 ...

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 ...

Product Engineer (remote)

Hiring Organisation
Ethiq
Location
Central London / West End, London, United Kingdom
Location: Fully Remote UK, Ireland, Portugal Package: ยฃ90k โ€“ ยฃ130k + 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. ๐Ÿ”‘ The Role โ€ข Building backend APIs in Python (FastAPI ideally) โ€ข Working with PostgreSQL โ€ข Deploying services into AWS (EKS preferred) โ€ข Managing container workloads in Kubernetes โ€ข Building infrastructure with Terraform โ€ข Implementing CI/CD pipelines (GitHub โ€ฆ Actions, GitLab, Jenkins, ArgoCD) โ€ข Shipping production-grade cloud-native applications ๐ŸŽฏ What Weโ€™re Looking For ๐Ÿ‘‰ Strong Python backend development experience ๐Ÿ‘‰ API development (FastAPI highly desirable) ๐Ÿ‘‰ Solid SQL/PostgreSQL knowledge ๐Ÿ‘‰ AWS experience (EKS ideal) ๐Ÿ‘‰ Kubernetes deployment experience ๐Ÿ‘‰ Terraform (Infrastructure as Code) ๐Ÿ‘‰ CI/CD automation experience Nice to have: ๐Ÿ‘‰ Experience ...

Back End Developer

Hiring Organisation
Omnis Partners
Location
City of London, Greater London, UK
squad. You'll be building backend APIs and deploying them into a modern AWS + Kubernetes environment. ๐Ÿ”‘ ๐—ง๐—ต๐—ฒ ๐—ฅ๐—ผ๐—น๐—ฒ โ€ข Building backend APIs in Python (FastAPI ideally) โ€ข Working with PostgreSQL โ€ข Deploying services into AWS (EKS preferred) โ€ข Managing container workloads in Kubernetes โ€ข Building infrastructure with Terraform โ€ข Implementing CI/CD pipelines (GitHub โ€ฆ Actions, GitLab, Jenkins, ArgoCD) โ€ข Shipping production-grade cloud-native applications ๐ŸŽฏ ๐—ช๐—ต๐—ฎ๐˜ ๐—ช๐—ฒโ€™๐—ฟ๐—ฒ ๐—Ÿ๐—ผ๐—ผ๐—ธ๐—ถ๐—ป๐—ด ๐—™๐—ผ๐—ฟ ๐Ÿ‘‰ Strong Python backend development experience ๐Ÿ‘‰ API development (FastAPI highly desirable) ๐Ÿ‘‰ Solid SQL/PostgreSQL knowledge ๐Ÿ‘‰ AWS experience (EKS ideal) ๐Ÿ‘‰ Kubernetes deployment experience ๐Ÿ‘‰ Terraform (Infrastructure as Code) ๐Ÿ‘‰ CI/CD automation experience Nice to have: ๐Ÿ‘‰ Experience ...

Software Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum
Software Developer Annual Salary: ยฃ40k - ยฃ45k, 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 ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporationโ„ข
Location
City of London, London, United Kingdom
Python | React Location: London (hybrid) Salary: ยฃ80,000 โ€“ ยฃ150,000 + 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 โ€ฆ Just smart people building important things properly. What youโ€™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 โ€ฆ 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). ...

LLM Engineer

Hiring Organisation
Helika
Location
City of London, London, United Kingdom
moving forward. 2. Python-Centric Engineering Hands-On Coding: serve as the primary contributor to our Python codebase. You will write clean, asynchronous code (FastAPI, AsyncIO) that handles complex agent orchestration. Production AI: You won't just tweak prompts; you will build the serving infrastructure, vector retrieval pipelines โ€ฆ focus on business value over over-engineering. Technical Expertise Python Mastery: Expert-level Python skills are non-negotiable. You know the ecosystem (Pydantic, Poetry, FastAPI) inside and out. AI Engineering: Experience building actual products with LLMs (not just tutorials). You understand the challenges of context windows, latency, and hallucination. ...

Product Engineer (Ruby on Rails)

Hiring Organisation
Resi
Location
City of London, London, United Kingdom
product Experience with Hotwire (Turbo & Stimulus) and Tailwind CSS Familiarity with background job processing (Sidekiq, Delayed Job, etc.) Experience with Python and FastAPI - our data pipeline and some supporting services are built in Python, and you'd be expected to maintain and contribute to these alongside the Rails codebase Familiarity โ€ฆ infrastructure and deployment platforms Experience working in a startup or high-growth environment Our Stack Backend: Ruby on Rails, PostgreSQL, Sidekiq Data & Services: Python, FastAPI Frontend: Hotwire (Turbo + Stimulus), Tailwind CSS, Three.js Infrastructure: Render Tooling: GitHub Actions, Sentry About Resi Resi is the UKโ€™s number one home extension ...