1 to 25 of 48 FastAPI Jobs in the South East

GenAI Full Stack Developer SC Cleared/Eligible

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £88,000 per annum, OTE
public services and deliver real impact. What You'll Do Develop GenAI applications using frameworks like LangChain, LangGraph, CrewAI . Build microservices with Python (FastAPI) or TypeScript (Express) . Create front-end solutions using React, TypeScript , and modern frameworks like Next.js . Integrate LLMs (OpenAI, Anthropic, Mistral) and vector databases ...

GenAI Full Stack Engineer - Consultant / Senior Consultant

Hiring Organisation
83zero Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £70,000 per annum
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 ...

GenAI Full Stack Engineer - Managing Consultant

Hiring Organisation
83zero Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum
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 ...

Full Stack Engineer

Hiring Organisation
Egregious
Location
Slough, Berkshire, UK
Employment Type
Full-time
Data Scientists, you will also implement novel frontend components to visualise data and support customer insight generation and decision-making. Skills Outstanding Python, FastAPI, asyncio and Postman/Insomnia Strong Git, Docker, Kafka, Kubernetes and Azure/AWS/GCloud Good understanding of Playwright, Selenium/Nodriver, Beautifulsoup Good React ...

Python Developer

Hiring Organisation
Propel
Location
Slough, Berkshire, UK
Employment Type
Full-time
Qualifications: ● 3+ years of experience in backend development. ● Strong proficiency in Python. ● Experience with microservices architecture and distributed systems. ● Familiarity with frameworks such as FastAPI (Python). ● Proficiency in working with databases like PostgreSQL, MySQL, MongoDB, or Cassandra. ● Experience in developing and consuming RESTful APIs. ● Knowledge of containerization and orchestration ...

Python/ AI Developer

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£55,000 - £75,000 per annum
protection, and API security. About You Python Development: Proficient in Python 3.x (OOP, data structures, exception handling, modules); experience with requests, pandas, numpy, asyncio, FastAPI/Flask; familiar with type hints, virtual environments, and dependency management (pip, poetry). (Reviewing and refactoring existing code in manageable modules added advantage). ...

Back end Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
NatWest platform standards is a strong plus. Experience working within NatWest engineering standards and governance. Ability to deliver microservices in Python when needed (FastAPI/Django). Terraform/IaC, EKS, service meshes, Postgres performance, Kafka. Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business ...

Senior/Lead Full Stack Developer React / Python AI Start up!

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
front end, Python on the back end. You'll: Build responsive UIs in React Develop APIs & services in Python (either Django/Flask/FastAPI) Own features end-to-end Help shape our tech stack You have: Strong React & Python skills API & database experience A proactive, problem-solving mindset Ideally ...

Site Reliability Engineer

Hiring Organisation
Global Fintech
Location
Slough, Berkshire, UK
Employment Type
Full-time
Support, DevOps, SRE, or related technical roles, ideally within financial technology environments. Strong technical expertise with Python, Unix, PostgreSQL, and familiarity with Kafka, CockroachDB, FastAPI, GraphQL, Snowflake, Redis, and QuestDB or equivalent technologies. Proven experience designing and implementing monitoring and alerting tools (DataDog, Grafana). Solid experience with AWS Cloud ...

Founding Software Engineer

Hiring Organisation
Synkka LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
where your work directly influences how global delivery works. The Stack We work at the frontier of software engineering and AI: Backend: Python + FastAPI Frontend: React Infra: Azure (infra-as-code, CI/CD, observability) AI Stack: LLM pipelines for agentic codegen, testing, and self-healing interfaces What ...

Product Technical Lead

Hiring Organisation
C4S Search Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £83,000 per annum
Continuously improve systems, processes, and infrastructure to enhance scalability, performance, and delivery speed. YOUR KEY SKILLS: Strong software engineering background with advanced Python skills (FastAPI or similar) and solid SQL/database expertise. Experience delivering end-to-end software products and designing scalable, cloud-based systems with CI/ ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Woking, Surrey, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Slough, Berkshire, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Oxford, Oxfordshire, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Maidstone, Kent, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Reading, Berkshire, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Crawley, West Sussex, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Brighton, East Sussex, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Full Stack Engineer

Hiring Organisation
Prism Digital
Location
Newport, Isle of Wight, UK
Employment Type
Full-time
tooling AI-driven product concepts (LLMs, automation, data intelligence) Working closely with engineering squads to transition validated prototypes into production Bonus Experience: Python and FastAPI exposure Experience with cloud-based data architecture in Azure Dashboarding or data-heavy UI experience Background in AI-infused product development Experience working with complex ...

Green Tech / Energy Tech Start-Up | Full Stack Engineer | LDN 2 Days Per Week | £50K - £110K + Healthy Equity

Hiring Organisation
Owen Thomas | Pending B CorpTM
Location
Slough, Berkshire, UK
Employment Type
Full-time
apps for installers on the move Tech Stack: -> React, TypeScript, Konva, Tailwind -> Node.js, PostGREST, Prisma -> PostgreSQL/PostGIS, Docker, Atlas -> (Sunsetting Python + FastAPI) Requirements for Carbon Emission/Green Tech Start-up | Full Stack Engineer | LDN 2 Days Per Week | £50K - £110K + Healthy Equity -> 2+ years commercial experience ...

Senior Backend Engineer

Hiring Organisation
M-XR
Location
Slough, Berkshire, UK
Employment Type
Full-time
with the experience that defines how we do it. What you will do Design and implement user-facing APIs to support frontend user flows (FastAPI) Build robust user authentication, authorisation, and account management (Auth0) Integrate payment processing and subscription management (Stripe) Design and manage user databases and data models (MongoDB ...

Senior Software Engineer (Full-stack)

Hiring Organisation
Primis
Location
Slough, Berkshire, UK
Employment Type
Full-time
work across our Python and TypeScript stack, contributing wherever the team needs you most. What You'll Be Doing: Develop and maintain FastAPI (Python) and Next.js (TypeScript) applications. Own features end-to-end - from user interface through to infrastructure and internal tooling. Navigate and contribute to diverse codebases across ...

Senior Engineer

Hiring Organisation
Hays
Location
Slough, Berkshire, UK
Employment Type
Full-time
integrations (Appsflyer, Firebase, sGTM) Design cloud solutions in Azure with alerting and failover Ensure scalability and reliability across global operations Tech Stack: Python (Flask, FastAPI) Azure (Event Hub, Functions, Data Factory) Snowplow Snowbridge APIs (Appsflyer, Firebase, sGTM) JavaScript (GTM tags) Event-driven tools (Kafka, RabbitMQ) Monitoring (Grafana, Prometheus) If this ...

Software Engineer (Backend Python)

Hiring Organisation
Tech Talent Network
Location
Slough, Berkshire, UK
Employment Type
Full-time
iterative environment while maintaining high engineering quality Shape backend engineering culture, tooling and processes for a rapidly scaling product Tech Environment Python with FastAPI PostgreSQL Event driven backend services and data heavy workflows Modern AI frameworks and agent driven systems integrated into backend pipelines Engineers who love solving performance, scaling ...