1 to 25 of 37 Remote/Hybrid FastAPI Jobs in the UK

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 ...

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 ...

Full Stack Engineer

Hiring Organisation
ISR RECRUITMENT LIMITED
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day (Outside IR35)
infrastructure, taking features from initial refinement through to production. Skills and Experience: Strong hands-on React, TypeScript/JavaScript and Python/FastAPI development skills. Experience building REST APIs, microservices and secure authentication using OAuth2, OpenID Connect and JWT. Practical AWS experience, including IAM, monitoring, secrets management and serverless ...

Founding Software Engineer Python - Start-up

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
build software from scratch and iterate quickly You have strong technical skills, primarily with Python You have experience with RESTful APIs (they use FastAPI); TypeScript, React and other web technologies such as HTML5, CSS3 would be of benefit You have experience with LLMs and agentic AI, like to get your ...

Senior AI Engineer (Autonomy & Machine Learning)

Hiring Organisation
Alten
Location
Bristol, UK
Employment Type
Full-time
testing, version control and code quality standards. Experience with data processing and analysis tools including Pandas, NumPy, SQL and model deployment technologies such as FastAPI, ONNX or TorchScript. Soft Skills & CollaborationStrong communication skills with the ability to engage technical and non-technical stakeholders. Collaborative approach with experience working effectively within ...

Software Engineer - Backend

Hiring Organisation
Bright Purple
Location
Remote UK, Bath, Somerset, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £475/day
code, ideally in AWS Clear communication and the ability to explain technical trade-offs to technical and non-technical colleagues Nice to have FastAPI or another modern Python API framework PostgreSQL or MySQL, Docker, Celery, Redis and Sentry Asynchronous or event-driven processing AWS CDK, Terraform or similar Experience ...

AI Software Engineer

Hiring Organisation
Eutopia Solutions Limited
Location
Andover, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
requests, code reviews and continuous integration. Ability to translate business requirements into secure, reliable and supportable technical solutions. Desirable experience: JavaScript, TypeScript, React, Flask, FastAPI, cloud-hosted environments, Docker, CI/CD pipelines, message queues, event-driven architecture, building workflow automation, internal applications and business system integrations, AI-assisted development ...

Senior Python AI Engineer

Hiring Organisation
WTW
Location
London, UK
read about. With strong Python at the heart of everything you do, you'll work across a modern AI stack — LangGraph, LangChain, FastAPI, Azure, vector search and graph databases — building sophisticated, reliable systems that scale. You'll join a talented, multidisciplinary team that values engineering craft as much as innovation ...

Senior AI Platform Engineer - MCP AWS Agentic AI

Hiring Organisation
Method-Resourcing
Location
London, United Kingdom
Employment Type
Contract
service integration, authentication, authorisation and secure software development. Experience taking ownership of complex engineering projects, making architectural decisions and mentoring other engineers. Desirable: Python, FastAPI, LangGraph, LangChain or similar AI frameworks. JSON-RPC, SSE, WebSockets and event-driven architectures. Experience with RAG, LLM function calling and context management. An interest ...

Senior AI Platform Engineer - MCP | AWS | Agentic AI

Hiring Organisation
Method Resourcing
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
service integration, authentication, authorisation and secure software development. Experience taking ownership of complex engineering projects, making architectural decisions and mentoring other engineers. Desirable: Python, FastAPI, LangGraph, LangChain or similar AI frameworks. JSON-RPC, SSE, WebSockets and event-driven architectures. Experience with RAG, LLM function calling and context management. An interest ...

Senior Data Scientist

Hiring Organisation
Data Careers
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
skills and a collaborative approach. Desirable Experience Data engineering technologies such as Databricks, PySpark or Spark. Cloud platforms, particularly AWS. Python frameworks such as FastAPI and PyTorch. Experience developing APIs and data pipelines. Infrastructure as Code, CI/CD and containerisation. Hands-on experience with LLMs, RAG, embeddings or generative ...

Senior Data Scientist

Location
United Kingdom
into technical requirements and development objectives. Python expertise covering standard data science libraries (NumPy, pandas, matplotlib, Scikit-learn, PyTorch, etc ), web frameworks (Flask or FastAPI) and visualisation (Dash, Plotly, & Streamlit). Proficient in SQL. Working with unstructured data Building customer and stakeholder relationships. Supporting and leading authoring of technical reports ...

Senior Data Scientist

Hiring Organisation
Sirius Analysis Limited
Location
Cosham, Hampshire, UK
into technical requirements and development objectives. · Python expertise covering standard data science libraries (NumPy, pandas, matplotlib, Scikit-learn, PyTorch, etc...), web frameworks (Flask or FastAPI) and visualisation (Dash, Plotly, & Streamlit). · Proficient in SQL. · Working with unstructured data · Building customer and stakeholder relationships. · Supporting and leading authoring of technical reports ...

Lead Software Engineer, Team Lead

Hiring Organisation
Marsh & McLennan Companies
Location
London, UK
Employment Type
Full-time
pensions covenant/advisory/trustee-facing tools, and strong ability to connect technical design to covenant outcomes. Experience with Python-based services (e.g., FastAPI) and modern web stacks (e.g., Next.js/React.js) in real-world delivery. Practical experience delivering GenAI/agentic solutions (prompt engineering, RAG, governance patterns ...

Senior AI Engineer - Perm - London

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
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 … functional teams. Desirable Experience Experience with any of the following would be highly advantageous: Large Language Models (LLMs) Amazon Bedrock Azure AI Foundry PyTorch FastAPI Knowledge Graphs Kubernetes Docker Infrastructure as Code MLOps Event-Driven Architecture Vector Databases Retrieval-Augmented Generation (RAG) Technology Stack Python SQL FastAPI PyTorch Docker Kubernetes ...

Machine Learning Engineer (Remote)

Hiring Organisation
Understanding Recruitment
Location
United Kingdom, UK
Employment Type
Full-time
scale production AI/LLM systems, including RAG and agentic workflowsOwn the full engineering lifecycle, from Python development through to AWS deploymentWork with Python, FastAPI, AWS, Docker, CI/CD and infrastructure-as-codeSolve real engineering challenges around reliability, observability, performance and costInfluence technical decisions, improve engineering practices and grow ...

Python Developer - Inside IR35 - Up to £700 per day - Hybrid

Hiring Organisation
Hunter Bond
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
Beacon or similar) Strong SQL and large-scale data handling expertise Pandas and NumPy for data processing and analytics REST API development using Flask, FastAPI or Django Strong understanding of performance optimisation and scalable systems Unix/Linux and Shell Scripting experience Domain Experience Investment Banking or Capital Markets background ...

Senior Python Software Engineer - FinTech

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
have strong commercial software engineering experience, at Senior or Principal level You have expertise with Python development combined with experience using Django or FastAPI (happy to use Django going forward) You can lead the design and delivery of software products and take projects from initial concept through to production ...

Python Engineer - Mid and Senior

Hiring Organisation
Anson McCade
Location
London, UK
Employment Type
Full-time
design, data structures, distributed systems and SOLID principlesAnalytical, collaborative and a clear communicatorEngaging and personable, comfortable giving and taking honest feedbackStack: Python, Django, FastAPI, AWS, PostgreSQL, Elasticsearch, Redis, Kafka, Kubernetes, GitHubWhat's on offerCompetitive salary up to 70k for mid level and up to 82k for senior, plus a performance ...

Senior Technical Lead - AI & Product Engineering (Contract)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£600.00 - £800.00 per day
leading engineering teams within enterprise environments Strong AWS architecture experience Deep understanding of modern software architecture and distributed systems Strong background in Python and FastAPI Experience designing and delivering AI-powered products Experience with Agentic AI frameworks such as LangGraph and LangChain Strong stakeholder management and communication skills Experience owning ...

Senior AI Consultant - Agentic AI & Generative AI

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
plus AI product UX patterns such as streaming, review loops, provenance/citations, long-running tasks and error recovery. Back-end: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django Channels, Flask and RESTful APIs. Databases and storage: PostgreSQL, MS SQL Server, MongoDB, Firestore, BigQuery, Azure Blob Storage. Cloud and DevOps: Azure … Engineer, Full Stack Developer, Python Developer, Senior Consultant Data Science, Data Scientist, Solutions Architect AI, LLM Engineer, MLOps Engineer, AI Software Engineer, Django Developer, FastAPI Developer, React Developer, Next.js Developer, TypeScript Developer, Azure OpenAI, Vertex AI, LangChain, LangGraph, CrewAI, Autogen, OpenAI Agents SDK, Google ADK, RAG, retrieval augmented generation ...

AI Developer/Engineer

Hiring Organisation
Michael Page
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 62,000 - 75,000 Annual
Then a mixture of the following on top: GenAI LLM APIs Experience designing, testing and deploying AI/ML solutions Chat Bots/Agents FastAPI Microsoft Agent Framework LangChain Vector database ML Engineering Job Offer Car allowance of 5k Private medical 25 days + BHS Option to buy 10 more ...

AI Developer/Engineer

Hiring Organisation
Michael Page
Location
London, Fleet Street, United Kingdom
Employment Type
Permanent
Salary
£62000 - £75000/annum
Then a mixture of the following on top: GenAI LLM APIs Experience designing, testing and deploying AI/ML solutions Chat Bots/Agents FastAPI Microsoft Agent Framework LangChain Vector database ML Engineering Job Offer Car allowance of 5k Private medical 25 days + BHS Option to buy 10 more ...

AI Developer/Engineer

Hiring Organisation
Michael Page Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£62,000 - £75,000 per annum
Then a mixture of the following on top: GenAI LLM APIs Experience designing, testing and deploying AI/ML solutions Chat Bots/Agents FastAPI Microsoft Agent Framework LangChain Vector database ML Engineering Job Offer Car allowance of 5k Private medical 25 days + BHS Option to buy 10 more ...