1 to 25 of 169 Permanent FastAPI Jobs

Senior Python Developer - AI

Hiring Organisation
83zero Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70,000
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Senior Python Developer - AI

Location
United Kingdom
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Senior Python Developer - AI

Hiring Organisation
83zero Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£70,000
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Python Developer - AI

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Python Developer - AI

Hiring Organisation
83zero Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£55,000
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Python Developer - AI

Location
Islington, North London, United Kingdom
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

Senior AI Engineer

Hiring Organisation
83zero Limited
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
Salary
£70,000
through to robust, production-ready applications for enterprise clients. What you'll be doing: Build production applications and APIs using Python and FastAPI Develop LLM, RAG and AI agent solutions Build RAG pipelines covering embeddings, retrieval and generation Work with OpenAI, Anthropic, Mistral, Llama and similar LLMs Use LangChain, LangGraph ...

GenAI Fullstack Engineer Full Stack Engineer – Generative AI

Hiring Organisation
Sanderson Recruitment
Location
Bristol, Gloucestershire, United Kingdom
Salary
£ 60 K
hold active SC (Security Check) Clearance or be eligible to obtain and maintain this level of clearance.Technical ExpertiseBackend DevelopmentExperience building microservices using Python with FastAPI, TypeScript with Express, or equivalent technologies.Frontend DevelopmentExperience developing React applications using TypeScript.Familiarity with frameworks such as Next.js, Vite, or similar.Generative AI TechnologiesExperience with Generative ...

GenAI Fullstack Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
Salary
£70,000
Security Check) Clearance or be eligible to obtain and maintain this level of clearance. Technical Expertise Backend Development Experience building microservices using Python with FastAPI, TypeScript with Express, or equivalent technologies. Frontend Development Experience developing React applications using TypeScript. Familiarity with frameworks such as Next.js, Vite, or similar. Generative ...

Senior AI Engineer – Perm – London

Hiring Organisation
Infused Solutions
Location
London, United Kingdom
Salary
£ 70 K
level Python development experience.Experience productionising Machine Learning, NLP or Generative AI models.Strong experience designing and building RESTful APIs and microservices using frameworks such as FastAPI, Flask or Django.Strong SQL skills with experience designing performant relational database solutions.Commercial experience with AWS and/or Azure cloud platforms.Experience designing distributed systems ...

Senior AI Engineer - Perm - London

Hiring Organisation
Infused Solutions
Location
London, UK
Employment Type
Full-time
development experience. Experience productionising Machine Learning, NLP or Generative AI models. Strong experience designing and building RESTful APIs and microservices using frameworks such as FastAPI, Flask or Django. Strong SQL skills with experience designing performant relational database solutions. Commercial experience with AWS and/or Azure cloud platforms. Experience designing ...

Senior Consultant - Agentic AI / Generative AI

Hiring Organisation
Capgemini
Location
Cheshire West and Chester, United Kingdom
Employment Type
Full Time
Redux, Zustand, Jest, Cypress. Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django Channels, Flask, RESTful APIs. Databases & Storage: PostgreSQL, MS SQL Server, MongoDB, Firestore, BigQuery, Azure Blob Storage. Cloud & DevOps: Azure (App Services, OpenAI ...

Software Engineer - Data & AI

Hiring Organisation
McLaren Group
Location
Woking, Surrey, UK
Employment Type
Full-time
agile sprints, balancing exploratory R&D with production-grade delivery. Give honest estimates and flag scope risk early. What You'll Bring Python (FastAPI), Node.js, REST APIs. SQL and PostgreSQL.Redis/Valkey for session and WebSocket coordination at scale. Strong JavaScript/TypeScript, HTML5, CSSReact (or equivalent), component architecture, state ...

Senior Software Engineer, Reference Data Platform (Python/Oracle) - AVP

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
Services, specifically with Master Reference Data, market data, instrument/counterparty reference data, or regulatory reporting systems.Experience with Python web frameworks and API design (FastAPI, Flask, or Django) for building internal data services and RESTful APIs.Familiarity with enterprise workload scheduling tools (e.g., Autosys, Airflow, Control-M) and enterprise messaging systems ...

Global AI/ML Engineer Senior Manager

Hiring Organisation
The Boston Consulting Group
Location
London, UK
Employment Type
Full-time
tools (e.g. Github Actions, Gitlab CI) for automating deployments· Other AWS Managed Services (RDS, Batch, Lambda, Fargate, Step Functions, SQS/SNS, etc.)· FastAPI and NextJS experience (if we're still using the latter)· Websockets, Server-Side Events, Pub/Sub (RabbitMQ, Kafka, etc.)Who You'll Work With· Squad ...

Senior Python Developer - up to 90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, UK
Employment Type
Full-time
Developer: Design, develop and maintain Python based automation frameworks and scripts supporting network testing, data processing and operational workflowsBuild RESTful APIs using Flask and FastAPI for internal services and cross team integrationsDevelop lightweight web based dashboards and interfaces using HTML, CSS, JavaScript and Jinja2Work with PostgreSQL, MySQL, MongoDB and Redis ...

Back-End Developer (Python | Application Development)

Hiring Organisation
Venquis
Location
London, UK
Employment Type
Full-time
hedge funds, investment banks)Strong working knowledge of Amazon Web Services (AWS) and cloud-native developmentExperience with RESTful API design and frameworks such as FastAPI, Flask, or DjangoProficient in working with relational databases (PostgreSQL, MySQL) and ORMs (e.g., SQLAlchemy)Familiarity with Docker, container orchestration, and infrastructure-as-code (e.g., Terraform ...

Full Stack Product Engineer

Hiring Organisation
Norton Rose Fulbright
Location
London, UK
Employment Type
Full-time
Azure Storage, Service Bus, API Management or managed identities. Experience with Azure DevOps, GitHub Actions, Bicep, Terraform or comparable application-infrastructure tooling. Experience with FastAPI, Express, serverless functions or containerised deployment. Experience with Figma, usability testing, product analytics or collaborating closely with product designers. Experience with document-heavy applications, search ...

Full Stack Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
EXPERIENCE: 5+ years' experience building and shipping production software Strong commercial experience with React and TypeScript Strong backend development experience using Python, ideally FastAPI or Django Solid PostgreSQL, SQL and data modelling expertise Experience building authentication, authorisation and permission-based systems Knowledge of AWS, CI/CD pipelines and containerised ...

Fullstack Engineer

Hiring Organisation
Oscar
Location
London, UK
Employment Type
Full-time
doBuild data-heavy, accessible interfaces in TypeScript and React, respecting a detailed role-based access modelDesign services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contractsModel data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolationBuild event-driven and background processing, plus real-time features over ...

Fullstack Engineer

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
Build data-heavy, accessible interfaces in TypeScript and React, respecting a detailed role-based access model Design services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contracts Model data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolation Build event-driven and background processing, plus real ...

Mid Software Engineer

Hiring Organisation
Frontier Agriculture Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent, Work From Home
patterns and modular code structure. Develop applications using Vue 3 and Nuxt in SPA mode, or equivalent reactive frameworks, alongside asynchronous Python services using FastAPI or equivalent technologies. Work confidently with relational databases, preferably PostgreSQL, and SQL. Break down technical problems, diagnose and resolve bugs, and contribute scalable, maintainable solutions ...

Innovation Software Developer

Hiring Organisation
EOS IT Solutions
Location
Armagh, United Kingdom
Salary
£ 70 K
technologies.Build robust solutions capable of handling real-time and high-volume sensor streams.Design Modern APIs and ServicesDevelop secure, scalable REST and gRPC services using FastAPI, Flask, and Node.js.Implement authentication, authorization, observability, testing, and performance monitoring.Ensure reliability, maintainability, and best-practice API design.Deliver Digital Twin ExperiencesIntegrate real-time operational data with ...

Innovation Software Developer

Hiring Organisation
EOS IT Solutions
Location
Armagh, Co. Armagh, UK
Employment Type
Full-time
robust solutions capable of handling real-time and high-volume sensor streams. Design Modern APIs and ServicesDevelop secure, scalable REST and gRPC services using FastAPI, Flask, and Node.js. Implement authentication, authorization, observability, testing, and performance monitoring. Ensure reliability, maintainability, and best-practice API design. Deliver Digital Twin ExperiencesIntegrate real-time ...

AI Software Engineer - Investments Technology

Hiring Organisation
Neuberger Berman
Location
London, UK
Employment Type
Full-time
years of professional software development experience/building and deploying AI solutions in production environments if anyProficiency in Python and AI/agentic frameworks, FastAPI, Flask, Pandas, LangChain, LangGraph, MCP Servers, RAG systemsGood understanding of data structures, data pipelines, SQL databases – MS SQL Server/Postgres, SnowflakeSolid software engineering fundamentals ...