51 to 75 of 131 FastAPI Jobs in the UK

Lead Software Engineer

Hiring Organisation
Pike + Bambridge | Vehicle Leasing
Location
United Kingdom
strong grasp of front-end tech, database management, and the ability to choose the “right tool for the job.” Backend & Infra: Node.JS, Python, FastAPI, REST APIs, GraphQL, Vercel, AWS, CI/CD, PostHog. Frontend: React, Next.JS, TypeScript, Tailwind CSS, Shadcn/ui, Storybook, PlateJS, SlateJS. AI/LLM Expertise : Hands ...

GenAI-Driven Senior Software Engineer (Java/Python)

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
Python) to help shape next‐gen financial software. You will engage in full‐stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‐native solutions with modern JS frameworks. You will also explore Gen‐AI concepts, APIs, and scalable architectures while mentoring mid‐level staff ...

Senior Product Engineer, £700/day (Outside IR35)

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - 700 per day
customer value, not just implementation) Evidence of iterative delivery (MVPs, feedback loops, prioritisation) Ability to work with ambiguity and challenge requirements Tech: Python, TypeScript FastAPI, Django, Vue MongoDB, PostgreSQL Kubernetes GCP In return they're offering an initial 6-month contract outside IR35 paying up to £700/day. ...

Senior Product Engineer, £100k + benefits

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
customer value, not just implementation) Evidence of iterative delivery (MVPs, feedback loops, prioritisation) Ability to work with ambiguity and challenge requirements Tech: Python, TypeScript FastAPI, Django, Vue MongoDB, PostgreSQL Kubernetes GCP The money is good too – up to £100k plus benefits including bonus, share options and private healthcare. ...

Senior Software Engineer - Python/Web, office based - London

Hiring Organisation
Tech Talent ID
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 - 85,000 Annual
software solutions, providing technical guidance to a small team, ideally offering experience across. Solid Python web development in a B2B product setting Django FastAPI/Flask beneficial AWS DevOps Agile Please note, this role requires Full Time attendance in their central London office - please only apply if that is something ...

Founding AI Platform Engineer

Hiring Organisation
MBN Solutions
Location
City of London, London, United Kingdom
with the founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products ...

Senior AI Software Engineer (GenAI)

Hiring Organisation
Infosec
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £700 per day + + Fully remote
Embeddings Vector search and retrieval Context engineering Prompt orchestration LLM deployment experience, not just experimentation Azure OpenAI, Ollama and/or Vertex AI Python, FastAPI and REST API development LangChain and/or LangGraph AKS, Kubernetes, Docker and Helm Secure AI development and DevSecOps practices including: RBAC Azure ...

Senior Backend Engineer (Outside IR35)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
mindset: high autonomy, a passion for greenfield engineering, and a track record of thriving in fast‐moving startup environments. Familiarity with tools like PostgreSQL, FastAPI, Docker, and GCP/AWS will make you stand out immediately. If you are an experienced contractor ready to take full ownership of a greenfield ...

Backend Developer

Hiring Organisation
First Choice Staff
Location
Feltham, London, United Kingdom
Employment Type
Permanent
Salary
£40,000
covering architecture, processes, and code Essential Skills and Experience Solid proficiency in Python, JavaScript, and SQL Strong understanding of back-end frameworks (e.g. Flask, FastAPI, Node.js or similar) Experience working with cloud platforms (e.g. DigitalOcean, AWS, or Azure) Experience developing or maintaining RPA solutions Ability to work independently, managing ...

Digital Promotion Developer Freight

Hiring Organisation
Heathrow Personnel
Location
Hounslow, London, United Kingdom
Employment Type
Permanent
Salary
£40,000
systems, processes, and deployments. Essential Skills & Experience Strong commercial experience with Python, JavaScript, and SQL. Experience working with back-end frameworks such as Flask, FastAPI, Node.js, or similar. Hands-on experience with cloud platforms such as AWS, Azure, or DigitalOcean. Experience developing or supporting Robotic Process Automation (RPA) solutions. Strong ...

Python Software Engineer

Hiring Organisation
Spencer Rose Ltd
Location
Watford, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 75,000 Annual
event-driven systems. Proven experience building API-first services, with a focus on performance, reliability, and maintainability. Python Back End development, primarily using FastAPI and modern API patterns. Strong understanding of RESTful API design, schema validation, and OpenAPI/Swagger. Experience working with messaging and eventing platforms such as Kafka ...

Founding Engineer

Hiring Organisation
SR2
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum
Founding Engineer | Cambridge | Hybrid | £70,000-£80,000 + Equity Tech stack: Python (FastAPI) - the bread & butter! React & TypeScript PostgreSQL Azure Docker AI/LLMs Some startups are trying to make meetings 3% more efficient. This one is tackling a problem that affects millions of people every day, even ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
Cardiff, United Kingdom
users Strong understanding of product development and navigating large codebases Located in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript + React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support ...

Senior Backend Engineer

Hiring Organisation
M-XR
Location
Cardiff, United Kingdom
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 Backend Engineer | AI Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
teams to understand their needs and provide scalable platform solutions. Continuously improve developer experience and platform adoption across the organization. Tech Stack: Backend Python FastAPI Agent Development Kit (ADK) Datastores PostgreSQL BigQuery Firestore Infrastructure Google Cloud Platform (GCP) RabbitMQ Terraform Monitoring & Observability Grafana Prometheus Langfuse incident.io Sentry What to Expect ...

AI & ML Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
tooling, contributing ideas and recommendations for continuous improvement. Who you will work with Data and AI Team About you Strong Python engineering skills (FastAPI, testing, typing) and experience with cloud‐native development (GCP preferred). Hands‐on experience with GCP Vertex AI (model endpoints, pipelines, embeddings, vector search) or equivalent ...

Backend Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
engine: scheduling, execution, state, retries, concurrency and cancellation, the machinery that decides what runs, when, and what happens when it doesn't. Python and FastAPI on AWS, shipped to production multiple times a day Design for load that isn't smooth: capacity, back-pressure and isolation for a system whose ...

Staff Back End Engineer - Finance Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
hard problems, raising the bar in code review, and unblocking teammates day-to-day Bonus: Extensive experience with Python web frameworks (Django/FastAPI/Flask/Starlette/Ninja). A background in high-logic or high-scale fields like Fintech, Gaming, Healthcare Tech, Logistics, Security/Cryptography ...

AI Engineer – Data & Reporting

Hiring Organisation
Tata Consultancy Services
Location
London Area, United Kingdom
/or R, with experience using machine learning frameworks such as TensorFlow, PyTorch, and scikit-learn. Experience with modern AI frameworks such as FastAPI, LangChain, LlamaIndex, or similar technologies. Hands-on experience with LLM APIs, foundation models, embeddings, vector databases, RAG architectures, and agentic AI systems. Experience working with large ...

AI Engineer (Machine Learning & NLP)

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Intelligence or a related discipline. 4+ years' commercial experience in Backend Engineering, Machine Learning Engineering or Data Engineering. Strong Python development experience. Experience with FastAPI, Flask or Django. Building and maintaining RESTful APIs and microservices. Strong SQL skills with PostgreSQL or similar relational databases. Experience working within AWS and/… highly beneficial: Large Language Models (LLMs) Transformers PyTorch Databricks Kubernetes Terraform Kafka Knowledge Graphs MLOps and model deployment best practices Technology Stack Python FastAPI SQL/PostgreSQL PyTorch Transformers/LLMs Databricks Terraform Kubernetes AWS & Azure Kafka Git CI/CD Knowledge Graph What's on Offer Fully remote working ...

Senior Python Software Engineer - To £75,000

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
Job Title: Senior Python Software Engineer Job Type: Full-time, permanent, Manchester Salary: Up to £75,000 + 10% Bonus About the business This Manchester based organisation are one of the UK's fastest-growing ...

Senior Java / Python Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience with Java and/or Python within enterprise environments Experience building backend services, APIs or distributed systems using technologies such as Spring Boot, FastAPI, Flask or Django Strong SQL and data processing skills, with exposure to large-scale data environments Previous experience working with risk platforms, risk data, trading ...

AI Engineer - Financial Service Consulting

Hiring Organisation
Datatech Analytics
Location
London, United Kingdom
Employment Type
Permanent, Part Time
another regulated industry, is essential. Tech skills include Python, SQL, LLM development (prompt engineering, fine-tuning, RAG), LangChain/LangGraph, agent frameworks, vector databases, FastAPI, and AWS, Azure, GCP or Databricks. CI/CD, MLOps and LLMOps familiarity expected. Strong communication and stakeholder skills matter at every level. ...

AI Engineer - Financial Services Consulting

Hiring Organisation
Datatech Analytics
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
another regulated industry, is essential. Tech skills include Python, SQL, LLM development (prompt engineering, fine-tuning, RAG), LangChain/LangGraph, agent frameworks, vector databases, FastAPI, and AWS, Azure, GCP or Databricks. CI/CD, MLOps and LLMOps familiarity expected. Strong communication and stakeholder skills matter at every level. ...

AI Engineer - Financial Service Consulting

Hiring Organisation
Datatech Analytics
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Permanent
another regulated industry, is essential. Tech skills include Python, SQL, LLM development (prompt engineering, fine-tuning, RAG), LangChain/LangGraph, agent frameworks, vector databases, FastAPI, and AWS, Azure, GCP or Databricks. CI/CD, MLOps and LLMOps familiarity expected. Strong communication and stakeholder skills matter at every level. ...