26 to 50 of 99 Permanent FastAPI Jobs

Software Engineer (Frontend)

Hiring Organisation
Orchestra
Location
City of London, London, United Kingdom
challenges regularly We're united by our mission, focused execution, and speed We deploy to production multiple times a day 🛠️ Tech Stack Backend: Python (FastAPI) + Typescript (express) Frontend: React + Typescript Infrastructure: AWS (serverless!), terraform Containerisation: Docker Database: PostgreSQL + DynamoDB CI/CD: GitHub actions + Blacksmith runners ...

Staff Software Engineer (React/Typescript) | Global AI Infrastructure Business | £150k + equity

Hiring Organisation
Salt
Location
London Area, United Kingdom
simplifying complex workflows for technical users Pragmatic builder. You know when to ship vs. over-engineer Nice to have Experience with Python-based backends (FastAPI/Flask/Django) Exposure to data visualisation, time-series, or experiment-style workflows Familiarity with design systems/component libraries Experience in AI/ ...

Full Stack Software Engineer

Hiring Organisation
Zenovo
Location
United Kingdom, United Kingdom
Employment Type
Permanent
Salary
£80000 - £90000/annum Up to £90,000 (Depending on Experien
deployment. Required Skills & Experience: 5+ Years Full-Stack experience across modern front-end frameworks (React, Vue, Svelte, etc.) and backend technologies (Node.js, Python/FastAPI, Go, microservices, SQL/NoSQL). A strong portfolio of shipped products demonstrating high-quality UI/UX, performance, and maintainable code (GitHub or demos ...

Full Stack Software Engineer

Hiring Organisation
ZENOVO LTD
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
deployment. Required Skills & Experience: 5+ Years Full-Stack experience across modern front-end frameworks (React, Vue, Svelte, etc.) and backend technologies (Node.js, Python/FastAPI, Go, microservices, SQL/NoSQL). A strong portfolio of shipped products demonstrating high-quality UI/UX, performance, and maintainable code (GitHub or demos ...

Full Stack Software Developer

Hiring Organisation
GoFibre Broadband Limited
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
WILL BRING TO THE ROLE An experienced Full Stack Developer across both frontend and backend Strong Python experience with frameworks such as Django or FastAPI Solid JavaScript/TypeScript skills and experience with modern frontend frameworks (Angular or Vue) Confident designing and working with RESTful APIs, with some exposure ...

Python Deveoper

Hiring Organisation
Focus on WD
Location
Wokingham, England, United Kingdom
economic problems. Key Responsibilities Develop and maintain high-quality Python code (OOP, data structures, type hints, etc.). Build scalable algorithms and RESTful APIs (FastAPI, Flask, Django). Perform data analysis using Pandas/NumPy and manage SQL/NoSQL databases. Develop optimization models (LP/MILP) using tools like ...

Sr Python Developer – Trading / Risk Platforms

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance optimization Working knowledge of Unix/Linux ...

Software Engineer

Hiring Organisation
TRIA
Location
Greater Bristol Area, United Kingdom
lifecycle: development, deployment, monitoring, and improvement Working closely with DevOps practices to improve CI/CD pipelines , infrastructure, and reliability Tech Stack: Python (Django FastAPI) & JS Front End AI Tooling Cursor, OpenAI Agents SDK, VueJS, CSS contained by Docker, K8’s, Helm Sound a bit of you? Great! Please apply ...

Full Stack Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
technical decisions as the platform evolves and scales Owning meaningful parts of the product rather than small isolated tickets Tech stack Backend: Python (FastAPI, Flask, or Django experience beneficial), Postgres Frontend: TypeScript, Vue 3 Cloud: Azure, GCP, or AWS experience a bonus You do not need to match this exactly. ...

Senior Python/GenAI Developer

Hiring Organisation
Randstad Technologies
Location
Ireland
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
years of professional experience. You must have "under-the-hood" knowledge of Python, specifically for building high-throughput microservices and complex data pipelines using FastAPI, Pandas, and NumPy . The RAG & Agentic Expert: This is the "Critical" requirement. Our client needs someone with deep hands-on experience building Retrieval-Augmented ...

Senior Python/GenAI Developer

Hiring Organisation
Randstad Digital
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent
Salary
£75,000
years of professional experience. You must have 'under-the-hood' knowledge of Python, specifically for building high-throughput microservices and complex data pipelines using FastAPI, Pandas, and NumPy . The RAG & Agentic Expert: This is the 'Critical' requirement. Our client needs someone with deep hands-on experience building Retrieval-Augmented ...

Machine Learning Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, Greater London, UK
communication skills and the ability to flourish in a team Located in London/Paris and open to working in office Tech Stack: Python FastAPI Python, Typescript, or React Open source LLMs Building for production Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, Greater London, UK
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 ...

Software Engineer (.NET)

Hiring Organisation
Sage
Location
Newcastle upon Tyne, Tyne and Wear, United Kingdom
Employment Type
Full Time
Salary
25000-55000
fixed early. Hybrid role – 3 days in office, 2 days at home Key Responsibilities Design, build, and maintain scalable services using Python (FastAPI) hosted on AWS Develop and integrate AI-powered services, connecting with LLMs, vector databases, or ML models to extend product capabilities Translate business and technical needs into ...

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 ...

Mid & Senior JavaScript Engineers | Green Tech & AI | Full Stack | React.js / Node.js / TypeScript | London 2 Days Per Week | £50K - £120K + Healthy Equity

Hiring Organisation
Owen Thomas | B Corp™
Location
London Area, United Kingdom
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 Mid & Senior JavaScript Engineers | Green Tech & AI | Full Stack | React.js/Node.js/TypeScript | London 2 Days Per Week | £50K - £120K + Healthy Equity ...

Founding Engineer

Hiring Organisation
Higher - AI recruitment
Location
London Area, United Kingdom
team as it grows. The best candidates will be energised by that scope, not daunted by it. REQUIREMENTS: Strong Python in production, ideally including FastAPI or similar async frameworks Proven experience building and deploying LLM-powered applications, not prototypes that never saw users Solid understanding of data modelling and PostgreSQL ...

Senior AI Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
. Applying prompt engineering, guardrails, evaluation and observability using tooling such as LangSmith, Langfuse, Ragas, promptfoo and Azure AI Content Safety. Productionising solutions with FastAPI, async Python, Pydantic, Docker and Kubernetes , deployed into Azure-native infrastructure . Partnering with data engineers, solution architects and advisory consultants ...

Senior AI Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
. Applying prompt engineering, guardrails, evaluation and observability using tooling such as LangSmith, Langfuse, Ragas, promptfoo and Azure AI Content Safety. Productionising solutions with FastAPI, async Python, Pydantic, Docker and Kubernetes , deployed into Azure-native infrastructure . Partnering with data engineers, solution architects and advisory consultants ...

Tools Engineer

Hiring Organisation
Sing King
Location
London Area, United Kingdom
evolve us from our existing combination of backend and frontend systems into a new bespoke solution incorporating an API currently being developed in Python (FastAPI with PostgreSQL) and a web-app frontend in React.js or similar. WHAT YOU’LL DO Lead the CMS architecture, the heart of the creation ...

Lead Python Engineer

Hiring Organisation
DeepRec.ai
Location
London Area, United Kingdom
deliver features end to end Key requirements: 4 to 8 years software engineering experience Strong Python backend skills, APIs, and frameworks such as FastAPI, Flask, or Django Experience building production systems in a startup or fast-paced environment Familiarity with cloud platforms such as AWS, GCP, or Azure Exposure ...

Senior AI Engineer (Enterprise AI Platform) : £90k+ : London hybrid

Hiring Organisation
Hunter Bond
Location
London Area, United Kingdom
with vector databases: Pinecone. Azure Vector Store Experience building voice-enabled AI systems using: Whisper, ElevenLabs, Azure Speech, Deepgram Experience deploying models using: TGI, FastAPI Strong cloud and infrastructure experience: AWS/GCP/Azure, Docker, Kubernetes, Redis Experience with monitoring and evaluation tools such as LangSmith Nice to have ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
Builder: You have experience in production environments and enjoy seeing your code solve tangible business problems. Stack Versatility: You are highly proficient in Python ( FastAPI ) and TypeScript ( React/Next.js ), with a solid grasp of SQL and GCP . Independent Execution: You are comfortable working with high levels of trust ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
production-grade product features. Data & Pipelines: Experience building ingestion workflows and connecting disparate internal data sources. Stack Versatility: You are highly proficient in Python ( FastAPI ) and TypeScript ( React/Next.js ), with a solid grasp of SQL and GCP . The Profile The Practical Automator: You have a track record ...

Artificial Intelligence Engineer

Hiring Organisation
Omnis Partners
Location
City of London, London, United Kingdom
safety, reliability) Shipping AI-driven products used in real-world enterprise settings Alongside this, you’ll stay close to the engineering fundamentals — Python backend (FastAPI/Django), infrastructure, and production deployment. Why people join environments like this: ✅ High talent bar across the team ✅ Direct access to founders and decision-makers ...