301 to 325 of 446 FastAPI Jobs in the UK

Senior Software Engineer, Unified Platform - Digital Assets

Hiring Organisation
DRW
Location
London, United Kingdom
Salary
£ 80 K
wallet platforms (or closely adjacent high-stakes money-movement systems)- DeFi, smart contracts, staking, or other on-chain systems- Full-stack development with Python (FastAPI)- Strong relational data modeling fundamentals- GitOps and Kubernetes- Job orchestration systems (Airflow, Prefect, etc.)For more information about DRW's processing activities ...

Forward Deployed Engineer

Location
Greater London, England, United Kingdom
retrieval, multi-step reasoning, evals, guardrails. Customer-facing experience preferred. Wealth, fintech or another regulated industry is a strong plus. Stack and tools Python (FastAPI, Pydantic, async stack), Azure (App Services, Functions, AI Foundry, Key Vault, Entra ID, Private VNet), Postgres, OpenAI and Anthropic models, evaluation frameworks for agentic systems ...

Senior Software Engineer, Unified Platform - Digital Assets

Location
Greater London, England, United Kingdom
platforms (or closely adjacent high-stakes money-movement systems). DeFi, smart contracts, staking, or other on-chain systems. Full-stack development with Python (FastAPI). Strong relational data modeling fundamentals. GitOps and Kubernetes. Job orchestration systems (Airflow, Prefect, etc.). For more information about DRW's processing activities ...

Staff Private Cloud Engineer

Location
Cambridge, England, United Kingdom
environments. Own and drive IaC (Terraform, Ansible) practices by defining reusable IaC modules and patterns for reliable and repeatable builds. Develop platform services, APIs (FastAPI) and automation using Python. Drive improvements in reliability, scalability and performance. Lead incident response, fixing and root cause analysis. Work across compute, networking and storage ...

Staff Private Cloud Engineer

Hiring Organisation
ARM
Location
Cambridge, Cambridgeshire, United Kingdom
Salary
£ 80 K
across multiple environments.Own and drive IaC (Terraform, Ansible) practices by defining reusable IaC modules and patterns for reliable and repeatable builds.Develop platform services, APIs (FastAPI) and automation using Python.Drive improvements in reliability, scalability and performance.Lead incident response, fixing and root cause analysis.Work across compute, networking and storage layers.Collaborate with engineering ...

Senior AI Engineer

Location
Greater London, England, United Kingdom
right technical toolkit. Strong Python, hands‐on experience with LLMs (OpenAI, Anthropic, open‐source), agent frameworks, RAG pipelines, vector databases, and backend infrastructure like FastAPI, Postgres, and ElasticSearch, or close enough that the gaps close fast. Domain curiosity, not just technical ability. You go deep on the problem, not just ...

Senior Full Stack Engineer, Agentic Security

Location
Greater London, England, United Kingdom
grow. In this role you will: Own end‐to‐end multiple backend services - APIs, data pipelines, shared libraries, and ML‐adjacent packages (Python, FastAPI, NestJS) Build frontend dashboards and UIs with clean DOM rendering, efficient state management, and solid UX principles (React, TypeScript) Design and work with data models … strong full-stack experience - you’re comfortable building APIs, writing database queries, and shipping React/Next.js UIs You’ve built production services with FastAPI or similar frameworks You understand dependency management and packaging - you’re comfortable with uv , pyproject.toml , editable installs, and managing dependency graphs across shared libraries ...

Forward Deployed Engineer

Hiring Organisation
MarkIT Placements
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
quality software using Python and/or TypeScript . Develop full-stack applications, APIs, AI agents and workflows. Work with technologies including Next.js, React, FastAPI, Fastify, FastMCP and Hono . Design and implement agentic applications using technologies such as LangGraph, AutoGen, Claude Agent SDK, OpenAI tooling or custom orchestration frameworks … TypeScript experience. Strong understanding of OOP, SOLID, 12-factor application development and microservice architecture. Experience building applications with frameworks such as Next.js and FastAPI or equivalent. Experience with vector databases, retrieval pipelines and AI evaluation frameworks. Cloud-native deployment experience with at least one of AWS, Azure, Cloudflare or Vercel ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
This role is for one of the Weekday's clients Min Experience: 6 years Location: London JobType: full-time We are seeking a highly skilled and experienced Senior Software Engineer with deep expertise in Python ...

AWS Platform Engineer: Dev Tools & Delivery

Location
England, United Kingdom
software delivery and platform adoption. The ideal candidate combines AWS application development and platform engineering experience with hands-on software engineering in Python/FastAPI and TypeScript/React, delivering production APIs, web #J-18808-Ljbffr ...

Platform Engineer: Core Backend & Developer Tools

Location
Greater London, England, United Kingdom
role emphasizes platform engineering, API standards, and observability across services. The ideal candidate has extensive backend experience, strong Python skills, and familiarity with FastAPI, Docker, Kubernetes, and CI/CD in cloud contexts. #J-18808-Ljbffr ...

Senior Software Engineer - POS Systems (Remote Europe)

Location
Liverpool, England, United Kingdom
seeking a Senior Software Engineer to join the POS team. You will work across the React Native/Expo mobile app, the Python/FastAPI backend, and the AWS/Kubernetes infrastructure to build a scalable, offline-capable POS experience for hospitality properties. You'll own end-to-end aspects ...

Senior Full-Stack Analytics Engineer - AI-Driven & Azure

Location
Greater London, England, United Kingdom
Engineer to own and evolve the analytics workbench used for cross-team decision making. You’ll work across the full stack (Angular frontend, Python FastAPI backend) and coordinate with an offshore vendor team to keep delivery on track. This hands-on role targets teams shipping enterprise software with AI-enhanced ...

data engineer for real-time freshness prediction

Location
Greater London, England, United Kingdom
scalable ETL pipelines and GCP cloud infrastructure for real-time sensor data and AI predictions Build and iterate on robust APIs using Python and FastAPI across the full product lifecycle from design to operation Collaborate with the CEO and CTO to implement agentic AI tools and full-stack features ...

platform engineer for AI decision platforms

Location
Greater London, England, United Kingdom
simulate and audit how markets, competitors, and customers respond to high-stakes decisions before they go live. Задачи: Build the core product using Python (FastAPI) and React (Next.js/TypeScript), architecting systems for customer workspaces and data ingestion; Design and implement customer-facing interfaces for querying, exploring, and auditing ...

data engineer food freshness

Location
Greater London, England, United Kingdom
pipelines and GCP cloud infrastructure to process real-time sensor data and AI predictions; Build and iterate on robust APIs using Python and FastAPI, managing the full product lifecycle from design to operation; Collaborate with the CEO and CTO to implement agentic AI tools and full-stack features that enhance ...

Python Developer

Hiring Organisation
Alexander Mann Solutions - Contingency
Location
London, United Kingdom
Employment Type
Contract
client teams across a variety of industries. Key Responsibilities: Develop and maintain Python applications using clean, scalable, and reusable code. Build RESTful APIs with FastAPI , including API endpoints, request/response validation, authentication, and error handling. Design and optimize SQL queries for retrieving, updating, and managing data efficiently. Integrate APIs ...

Staff AI Engineer

Location
Greater London, England, United Kingdom
hard problems with huge real-world impact What they’re looking for 5+ years of strong software engineering experience (Preferably Python/Django/FastAPI) Exceptional academic background (BSc, MSc or PhD from a top university) Experience building and deploying AI applications in production High-agency engineers who thrive ...

Principal Machine Learning Engineer – Production Systems

Location
Bristol, England, United Kingdom
setups. Knowledge of feature stores and data validation frameworks. Exposure to regulated environments and compliance frameworks. Tools & Technologies ML : TensorFlow, ONNX Runtime, tf2onnx. APIs : FastAPI, gRPC. Why Join Us? Work on cutting-edge ML solutions integrated into commercial engineering software. Define architecture that scales across global deployments. Collaborate with ...

Computer Vision Engineer

Location
Greater London, England, United Kingdom
critical systems Knowledge of pose estimation, SLAM, or visual odometry Strong ability to multitask Familiarity with synthetic data generation and simulation environments Experience with FastAPI or similar backend frameworks #J-18808-Ljbffr ...

Principal Engineer - Tech Strategy for a Profitable FinTech

Location
City Of London, England, United Kingdom
Profitable FinTech Scale-Up Hybrid (London) or remote within the UK Up to £160,000 per annum plus stock options Python | Django | FastAPI | AWS | Rust | Postgres | Event-Driven Architecture | Machine Learning Principal Engineer - We're working with a leading fintech scale-up that's transforming how small businesses access finance. ...

Systems Integrator

Location
Greater London, England, United Kingdom
natural-language querying, rather than one-off extracts. Design and ship internal applications and AI-enabled tools - using Python, Streamlit , Databricks Apps (HTMX) , Lakebase , FastAPI or similar - that put data and AI directly into the hands of fund management, asset management and finance teams. Prototype, evaluate and productionise ...

Senior Data Engineer

Location
United Kingdom
workflow orchestrators, specifically Airflow or Dagster. In-depth knowledge of Python and building data systems using Python. An understanding of API frameworks such as FastAPI and libraries such as Pydantic, and design, implementation, and deployment of APIs is preferred. Knowledge of CI/CD measures and tools, such as GitHub ...

Lead Software Developer

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
South West London, London, United Kingdom
Employment Type
Permanent
obsessed with the customer, which is how we hold 4.9 on both Trustpilot and Google. The stack: TypeScript on the backend, Python and FastAPI for Jay, Next.js up front, AWS underneath, Claude Code woven through how we build. You won't have used all of it, and you'll change ...

Lead Software Developer

Hiring Organisation
We Love Alfa
Location
SW1A, Victoria, Greater London, United Kingdom
Employment Type
Permanent
obsessed with the customer, which is how we hold 4.9 on both Trustpilot and Google. The stack: TypeScript on the backend, Python and FastAPI for Jay, Next.js up front, AWS underneath, Claude Code woven through how we build. You won't have used all of it, and you'll change ...