76 to 100 of 444 FastAPI Jobs in the UK

Python/AIML Developer - Software Engineer III

Hiring Organisation
JP Morgan Chase
Location
Glasgow, Lanarkshire, United Kingdom
Salary
£ 80 K
training or certification in software engineering concepts, plus 5+ years of applied experience building production Python systems, including web/API services (Flask or FastAPI) and the ML/NLP ecosystem (scikit-learn, pandas, NumPy).Demonstrated experience taking machine learning models from prototype to production - training, packaging, deployment, monitoring, retraining ...

BXTI - Liquid Credit, Full Stack Software Engineer, Associate

Hiring Organisation
Blackstone Group
Location
London, United Kingdom
Salary
£ 80 K
highly scalable microservices architecture deployed on a cloud-hosted containerized environment. Key technologies in our stack include C#, React/Angular, Typescript, FastAPI, Python, Terraform, SQL, AWS ECS, AWS Lambda, AWS DynamoDB , AWS SNS/SQS, CI/CD tooling (e.g., Gitlab Runners), and data warehouse solutions like Snowflake.Qualifications ...

BXTI - Liquid Credit, Full Stack Software Engineer, Associate

Location
Greater London, England, United Kingdom
highly scalable microservices architecture deployed on a cloud-hosted containerized environment. Key technologies in our stack include C#, React/Angular, Typescript, FastAPI, Python, Terraform, SQL, AWS ECS, AWS Lambda, AWS DynamoDB , AWS SNS/SQS, CI/CD tooling (e.g., Gitlab Runners), and data warehouse solutions like Snowflake.**Qualifications ...

Lead Software Engineer - Solution & Data Architecture - B2B SaaS Fintech

Location
Greater London, England, United Kingdom
Kotlin, Java 17+, Spring Boot & Co, JPA/Hibernate, SQL and NoSQL, Elasticsearch, Gradle, JUnit/AssertJ/MockK Metrics, analytics and AI: Python, FastAPI, Polars, LangChain Frontend: React (TanStack Query/React Router/react-hook-form + Zod), TypeScript, nx.dev, Tailwind CSS/shadcn/ui, Vitest/ ...

Python/React Developer

Hiring Organisation
Mphasis
Location
London Area, United Kingdom
best coding practices. Work within Agile/Scrum development environments. Troubleshoot and resolve production issues. Required Skills Backend Strong experience with Python Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5 … skills. Experience working in enterprise-scale environments. Ability to work independently and in cross-functional teams. Exposure to Agile delivery methodologies. Keywords: Python, React.js, FastAPI, Flask, Django, TypeScript, AWS, Azure, Docker, Kubernetes, CI/CD, PostgreSQL, Microservices, REST APIs. ...

Python Developer

Hiring Organisation
NEEV LIMITED
Location
London, United Kingdom
Employment Type
Contract
building scalable, data-driven Note: Investment banking exp is required. Key Responsibilities Backend Development (Python) Build APIs and services using Python frameworks (Flask, FastAPI, Django). Integrate with Databricks SQL endpoints for data access. Ensure performance, scalability, and security of backend systems. Databricks & Data Engineering Develop ETL pipelines and workflows ...

Full-Stack Developer & Development Team Lead

Location
Greater London, England, United Kingdom
authentication systems. Understanding of GDPR, accessibility, and secure software development. Experience integrating applications with AI/ML or LLM-based services. Familiarity with Python, FastAPI, or related technologies. Experience with vector databases, knowledge graphs, or AI application architectures. Experience mentoring developers and improving development standards and processes. Educational Requirements Bachelor ...

AI & Automation Developer

Hiring Organisation
Time Recruitment Solutions Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
manage projects independently from requirements gathering through to deployment. Desirable Experience Experience with any of the following would be advantageous: React & TypeScript Python (FastAPI, Flask or similar) Node.js Electron or desktop application development SQL Server optimisation and performance tuning Workflow automation platforms such as n8n CRM integrations Microsoft Entra ...

Senior Full Stack Developer - Downdetector Connect

Location
Greater London, England, United Kingdom
workflows into production applications. Job Qualifications: 5 to 8 years of professional software engineering experience. Experience in mentoring or leadership. Strong proficiency in Python (FastAPI or Django) and experience designing scalable RESTful APIs. Proficient in React and Redux with hands‐on experience building complex, data‐heavy web applications. Hands ...

Lead Engineer - Compute Service, Senior Vice President

Location
Greater London, England, United Kingdom
Professional software development experience with Java or Python. Solid experience with common frameworks and tooling (e.g. Spring, Spring Boot, Quarkus in Java. Or Flask, FastAPI, Pydantic in Python). Exposure to cloud platforms (e.g., AWS, Azure, GCP) and containerization (e.g., Docker, Kubernetes). Experience designing, building, and maintaining large-scale ...

Full Stack Software Engineer

Hiring Organisation
Faculty
Location
London, United Kingdom
Salary
£ 80 K
paired with a strong eye for intuitive UI/UX design.You possess solid backend development skills in Python or TypeScript frameworks (such as FastAPI, Flask, or Django) and are comfortable managing the full application lifecycle.You are experienced in deploying software within cloud environments like AWS, Azure, or GCP, ideally using ...

Senior Product Engineer

Location
Greater London, England, United Kingdom
frontend skills - comfortable with React, TypeScript, and building user interfaces when needed* Expert-level modern Python proficiency with deep knowledge of the ecosystem (Pydantic, FastAPI, asyncio, type hints)* Strong experience with REST APIs, microservices architecture, and database design (SQL, NoSQL)* Experience with modern AI frameworks (we currently favour Pydantic ...

Software Engineer, Enterprise

Hiring Organisation
Scale AI
Location
London, United Kingdom
Salary
£ 80 K
emphasis on distributed services, reliability, and scalability.Proficiency in Python or TypeScript, with experience designing high-performance APIs and backend architectures using frameworks such as FastAPI, Flask, Express, or NestJS.Deep familiarity with cloud infrastructure (AWS and Azure preferred), including container orchestration (Kubernetes, Docker) and Infrastructure-as-Code tools like Terraform.Experience managing ...

Senior Software Developer

Hiring Organisation
Stantec
Location
London, United Kingdom
Salary
Confidential
user experience.Required QualificationsExperience: 5+ years of professional software development experience.Python Mastery: Expert-level knowledge of Python and at least one mainstream framework (e.g., Django, FastAPI, or Flask).Front-End Proficiency: Highly desirable experience with Angular, HTMX, and Alpine.js. You should be comfortable choosing the right tool for the specific ...

Python/AIML Developer - Software Engineer III

Location
Glasgow, Scotland, United Kingdom
training or certification in software engineering concepts, plus 5+ years of applied experience building production Python systems, including web/API services (Flask or FastAPI) and the ML/NLP ecosystem (scikit-learn, pandas, NumPy, spaCy, PyTorch or TensorFlow). Demonstrated experience taking machine learning models from prototype to production ...

Senior Software Engineer (Machine Learning) New Exeter, Bristol

Location
United Kingdom
responsibilities within your competence to support our growth. Required Skills & Experience: Significant industry experience in (scientific) software development Proven experience building production APIs with FastAPI (or similar async Python frameworks) Strong working knowledge of modern machine learning — able to understand, integrate, and extend the functionality of an ML library (NumPy ...

Senior Software Engineer, Full Stack - AI

Hiring Organisation
Fitch Ratings
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
stores, RAG, and LLM integration/fine-tuning (OpenAI, LLaMA, Cohere, etc.)Strong coding in Python and experience with frameworks/tools such as FastAPI, PyTorch/TensorFlow, MLflow;3-5+ years of experience in designing and developing scalable web applications using modern front-end frameworks such as React ...

Senior Software Engineer - Agentic Workflows

Hiring Organisation
Causaly
Location
London, UK
Employment Type
Full-time
up. Preferred Qualifications Durable execution or workflow engines (Restate, Temporal, Inngest), or a comparable system you have built yourself. Python and LLM application frameworks (FastAPI, LangChain, LangGraph). Our GenAI service is written in Python and you will work in it. Observability and LLM instrumentation (OpenTelemetry, Langfuse). Multi-tenant ...

AI Consulting –Sr. AI Architect & Client Partner

Location
Greater London, England, United Kingdom
field. Master’s preferred. Skills and Personal attributes we would like to have: Core Knowledge Expected Programming & engineering : expert Python; REST APIs and microservices; FastAPI; distributed systems; cloud-native architecture. LLM application delivery: prompt engineering, tool and function calling, RAG, and at least one production Agentic AI system. Cloud ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
experience integrating frontends with REST or GraphQL APIs, with a strong understanding of service‐oriented architecture, data modeling, and Python web frameworks (e.g., FastAPI, Flask, Django). Practical experience with database data flows (e.g., PostgreSQL), cloud/container infrastructure (Docker, Kubernetes), and frontend observability tools (Sentry, Datadog, OpenTelemetry). Strong ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
experience integrating frontends with REST or GraphQL APIs, with a strong understanding of service-oriented architecture, data modeling, and Python web frameworks (e.g., FastAPI, Flask, Django). Practical experience with database data flows (e.g., PostgreSQL), cloud/container infrastructure (Docker, Kubernetes), and frontend observability tools (Sentry, Datadog, OpenTelemetry). Strong ...

FullStack Developer

Hiring Organisation
DNS Info Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
best coding practices. Work within Agile/Scrum development environments. Troubleshoot and resolve production issues. Required Skills Backend Strong experience with Python Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5 … skills. Experience working in enterprise-scale environments. Ability to work independently and in cross-functional teams. Exposure to Agile delivery methodologies. Keywords: Python, React.js, FastAPI, Flask, Django, TypeScript, AWS, Azure, Docker, Kubernetes, CI/CD, PostgreSQL, Microservices, REST APIs. ...

Python Developer

Location
Reading, England, United Kingdom
ongoing platform reliability Strengthen application security, deployment practices and technical documentation We are looking for: 5+ years of commercial Python development experience, ideally including FastAPI and strong asynchronous Python Strong PostgreSQL/SQL experience alongside SQLAlchemy or SQLModel Docker, Kubernetes/OpenShift, CI/CD and automated testing with pytest ...

Python Developer - AI / LLM Platform

Hiring Organisation
Ncounter
Location
Reading, Berkshire, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £100,000 per annum
ongoing platform reliability • Strengthen application security, deployment practices and technical documentation We are looking for: • 5+ years of commercial Python development experience, ideally including FastAPI and strong asynchronous Python • Strong PostgreSQL/SQL experience alongside SQLAlchemy or SQLModel • Production experience integrating OpenAI, Azure OpenAI or comparable LLM APIs • Docker, Kubernetes ...

Python Technical Lead FinTech

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
technical roadmap, guide architectural decisions, and ensure engineering excellence across backend services. Python Engineering Design and build robust, secure, and scalable microservices using Python (FastAPI, Django, Flask). System Architecture Lead the design of distributed systems, event-driven architectures, and high-availability platforms. Team Mentorship Coach engineers, conduct code reviews ...