226 to 250 of 383 Permanent FastAPI Jobs

Full Stack Application Developer

Hiring Organisation
Savills
Location
Bristol, UK
Employment Type
Full-time
cross-functional team, you will own features end-to-end - from scoping requirements with business stakeholders through to production deployment - across both Python/FastAPI back ends and React/TypeScript front ends. This is a hands-on engineering role that requires strong team collaboration. You will have the autonomy ...

Product Engineer

Hiring Organisation
Consortia
Location
London, UK
Employment Type
Full-time
your routine to support ongoing learning, system assessment and platform enhancement. The technology environment includes: Python for API and data development Flask and FastAPI React with Typescript and Vite AWS services including ECS, Lambda and event-driven architectures Postgres React Query Jest, React Testing Library and PlaywrightThis role is particularly ...

ML / Backend Engineer @ Sqwish

Location
Cambridge, England, United Kingdom
Nice to have, but teachable on the job Some experience or interest in ML Experience with Rust, Axum, Tokio, SQLx, or PyO3 Experience with FastAPI, Pydantic, SQLAlchemy, Alembic, pytest, mypy, or Ruff Familiarity with Postgres, Redis, event-driven systems, queues, or streaming architectures Experience with OpenTelemetry, Prometheus, Grafana, Loki, Tempo ...

Product Engineer (Backend/AI @Briink)

Location
Greater London, England, United Kingdom
sustainability, climate tech, or corporate reporting Deeper experience with RAG, retrieval, agents, LLM evaluation, and production AI systems Familiarity with backend technologies such as FastAPI, PostgreSQL, background queues #J-18808-Ljbffr ...

Applied AI Engineer, Markets Operations - Associate

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Science, Software Engineering, a related field, or equivalent practical experience Demonstrate strong Python programming skills Design, develop, and integrate RESTful APIs, such as with FastAPI Build and support ETL and data pipeline engineering workflows Apply Infrastructure as Code practices, such as Terraform, and work within CI/CD pipelines Design ...

Applied AI Engineer, Markets Operations - Associate

Location
Westminster, West End, United Kingdom
Science, Software Engineering, a related field, or equivalent practical experience Demonstrate strong Python programming skills Design, develop, and integrate RESTful APIs, such as with FastAPI Build and support ETL and data pipeline engineering workflows Apply Infrastructure as Code practices, such as Terraform, and work within CI/CD pipelines Design ...

Senior Fullstack Engineer

Location
Greater London, England, United Kingdom
that mattered. Entire products or features taken from ideation to production, with impact you can speak to. Expertise with our stack. Python, TypeScript, React, FastAPI, Postgres, OpenSearch, RabbitMQ, Kafka, LLMs, Agents. Domain curiosity, not just technical ability. You go deep on the problem, not just the implementation. You care about ...

Lead ML Engineer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
Hands‐on experience with LLM and agent frameworks and agentic reasoning patterns.* Practical understanding of Model Context Protocol (MCP), including server and tool patterns.* FastAPI and REST API design and implementation experience.* Experience with prompt engineering and RAG‐based architectures.* Containerisation and Kubernetes‐based deployment experience.* Ability to work across ...

Lead ML Engineer

Location
Greater London, England, United Kingdom
Hands‐on experience with LLM and agent frameworks and agentic reasoning patterns.\* Practical understanding of Model Context Protocol (MCP), including server and tool patterns.\* FastAPI and REST API design and implementation experience.\* Experience with prompt engineering and RAG‐based architectures.\* Containerisation and Kubernetes‐based deployment experience.\* Ability to work across ...

Software Engineer — Junior / Mid

Location
Greater London, England, United Kingdom
strong backend engineers who've built production systems with any robust framework — Java/Spring Boot, Go, Kotlin, C#/.NET, Python (Django/FastAPI) or Ruby on Rails — and can ramp into TypeScript fast. We care that you've built and operated real backends, not which language ...

Backend Engineer

Hiring Organisation
9fin
Location
London, UK
Employment Type
Full-time
through your software; from persistent storage through to API endpointExperience with Python and its web frameworks (we currently use Flask, and are moving to FastAPI with Typing)Strong experience delivering APIs, Service Oriented ArchitectureGood working knowledge of SQL statements for retrieving dataA good collaborator and communicator with cross functional engineering ...

Principal Python Software Engineer

Hiring Organisation
Cboe Exchange
Location
London, UK
Employment Type
Full-time
Experience with TDD, BDD or other testing methodologies Preferred: Familiarity with PostgreSQL and Snowflake Preferred: Familiarity with Web Frameworks such as Django, Flask or FastAPI Preferred: Familiarity with event streaming platforms such as Apache Kafka Preferred: Familiarity with data pipeline platforms such as Apache Airflow Preferred: Familiarity with Java Preferred ...

Senior Backend Engineer

Hiring Organisation
9fin
Location
London, UK
Employment Type
Full-time
through software, from persistent storage to API endpoints, while applying industry best practices for validationExperience with Python and its web frameworks (we currently use FastAPI with strong typing & Pydantic)Strong experience delivering APIs, Service Oriented ArchitectureStrong working knowledge of SQL statements for retrieving dataA good collaborator and communicator with cross ...

AI Engineers

Location
Greater London, England, United Kingdom
FHIR R4, HL7, LOINC, SNOMED CT or longitudinal clinical data. Experience in healthcare, life sciences or another regulated or safety-sensitive domain. Familiarity with FastAPI, Pydantic, MongoDB, Elasticsearch, hybrid or vector search, LangGraph or similar agent frameworks. Experience with Azure or AWS, containers, on-premise deployments, multi-tenant systems, privacy ...

Senior Backend Engineer for AI‐Driven Systems (Remote)

Location
Glasgow, Scotland, United Kingdom
maintainable solutions that power our AI‐driven products and client deployments. Key Responsibilities Design, build, and maintain high‐performance backend API services using Python, FastAPI, and Pandas. Develop clean, well‐documented RESTful and asynchronous APIs following best practices. Ensure APIs are scalable, secure, and optimized for performance in production environments. … experience delivering production‐grade backend systems at scale. Core Technical Skills Strong proficiency in Python as a primary backend language. Hands‐on experience with FastAPI and Pandas for building data‐driven API services. Solid experience with PostgreSQL – schema design, query optimization, and migrations. Experience with RabbitMQ or similar message brokers ...

Senior ML Engineer - Enterprise AI Platform Delivery

Location
Greater London, England, United Kingdom
operate MCP-based platforms and collaborate with product teams to deliver reliable AI tooling. The role requires strong Python, expertise with LLM frameworks, FastAPI, and Kubernetes, plus experience with RAG and tool orchestration in an enterprise setting. #J-18808-Ljbffr ...

Senior Python Engineer — Architect AI Data Platform

Location
Glasgow, Scotland, United Kingdom
platform connecting data mesh and AI tools, designing ingestion pipelines to governed retrieval services, and mentoring teammates. You will work hands-on with Python, FastAPI APIs, CI/CD, and cloud infrastructure, shaping architecture while collaborating across engineering, product, and data science. #J-18808-Ljbffr ...

Senior POS Engineer - Remote Europe (RN/Python)

Location
Greater London, England, United Kingdom
Software Engineer to join the POS team on a fully remote basis in Europe. You will work across the React Native frontend, Python/FastAPI backend, and AWS/Kubernetes infrastructure to deliver the next generation of Cloudbeds' hospitality POS experience. You will own end-to-end responsibilities, including staff ...

Senior Python Developer — Hybrid & Parental Leave

Location
Belfast City District, Northern Ireland, United Kingdom
seeking a Senior Python developer to join the Wholesale Credit Risk Technology team. You will design and deliver modern technology solutions using Python, FastAPI, and related technologies to support Institutional Credit Management. The role involves collaborating with onshore and offshore teams in a hybrid work model. The ideal candidate ...

Founding Engineer — Build AI-Driven Backend & Platform

Location
Greater London, England, United Kingdom
company, is hiring a Founding Engineer to own end‐to‐end backend architecture and AI workflow design. You will lead Python backend work with FastAPI, shape the PostgreSQL data layer, and contribute to a React frontend as needed, while driving CI/CD and Azure deployments. Occasional travel ...

Senior Software Engineer – GenAI, Cloud & Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
Python) to co-create and evolve financial software platforms. You will work on full-stack development, applying Spring Boot/Spring Core, Flask/FastAPI, and modern JavaScript frameworks to deliver scalable cloud-native applications. You will collaborate with cross-functional teams, mentor junior engineers, and ensure robust coding practices ...

Engineering Team Lead — AI/LLM Platform & Full-Stack

Location
Greater London, England, United Kingdom
product roadmap, mentor up to four engineers, and drive a cloud-first strategy. You will develop full-stack solutions with Python/FastAPI and React/TypeScript, implement automated testing and CI gates, and harden AI features against prompt injection while working closely with customers to translate needs into scalable ...

Product Engineer

Location
Greater London, England, United Kingdom
Location: London, hybrid Tech: Python, FastAPI/Django/Flask, React, TypeScript If you're looking for an engineering role that might make your brain hurt a little bit, in a good way, this is probably worth a conversation. I'm working with an ambitious, early-stage AI company building ...

Software and Data Engineer

Hiring Organisation
Experis
Location
Birmingham, West Midlands, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
will solve live technical issues while delivering longer term improvements across the business. The role You will: * Develop and improve applications using Python, FastAPI, React and TypeScript * Build and support data pipelines, DAGs and SQL models * Work with BigQuery, MongoDB and Google Cloud * Develop APIs and integrations between operational ...

Data Engineer

Location
Greater London, England, United Kingdom
manual data processes using Python, replacing spreadsheets and ad-hoc workflows with robust, repeatable jobs. Build performance dashboards and reports in Streamlit and HTMX (FastAPI) that Finance, Asset Management, and Fund Management actually use. Integrate internal and third-party systems via REST APIs, improving data accessibility across the business. Champion ...