13 of 13 Contract FastAPI Jobs in the UK

Python Developer - UK Remote Contract - Outside IR35

Hiring Organisation
Infused Solutions Ltd
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£280 - £300/day
/CD pipelines and automated testing Experience working within Agile delivery environments Strong problem-solving and debugging skills Desirable Experience Experience with FastAPI, Django, or Flask Exposure to event-driven architectures and messaging technologies Experience building data-intensive applications Knowledge of infrastructure-as-code practices Bonus Skills Any commercial ...

Senior Full-stack Web Developer

Hiring Organisation
EMBL-EBI
Location
Saffron Walden, Essex, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£65,000
computer science or related fields Expertise in Python, including popular Python libraries: NumPy, Pandas, PySpark and frameworks: Django, Django Rest Framework, FastAPI Hands-on experience with both relational (e.g. PostgreSQL) and non-relational databases (e.g. Elasticsearch, Redis) Extensive experience in data warehousing architecture, big data processing and ETL Demonstrable expertise ...

Senior Full Stack Engineer (GCP, Python, JavaScript) Remote

Hiring Organisation
Exalto Consulting
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £410/day
performance within React. ● NodeJS/Express: Strong experience building and scaling server-side applications using Express. ● Python Expert: Strong experience building backend services using FastAPI and managing database migrations with Alembic. ● AI Tooling: Familiarity with integrating AI APIs (such as Codex or Claude) and using AI-assisted development workflows. ● Agile ...

Research Development Software Engineer

Hiring Organisation
Apex Systems US
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Contract
Contract Rate
£35 - £40/hour
strong engineering hygiene practices including testing, code review, and documentation. Experience building and maintaining APIs, backend services, and web applications using frameworks such as FastAPI or Django. Experience with cloud infrastructure, containerisation (Docker, Kubernetes), CI/CD pipelines, and deployment of Azure-hosted or similar cloud services. Experience designing ...

ML Engineer

Hiring Organisation
Tec Partners Recruitment Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£750 - £900/day
broader developer experience for internal AI platform adoption. Key requirements: * Strong Python engineering experience * Experience with LLMs, AI agents, and agentic reasoning patterns * FastAPI and REST API development * RAG and prompt engineering experience * Kubernetes/containerisation knowledge * Exposure to MCP or similar AI tooling frameworks * Ability to work across platform ...

AI Engineer - LLM & Agentic Systems

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day, Negotiable
problems. Owning delivery end-to-end - from initial exploration through to production deployment, integration and ongoing iteration. Working with MCP-style architectures (FastMCP/FastAPI) and LangChain/LangGraph or equivalent frameworks to build reliable, scalable systems. Integrating AI into products, APIs and core business workflows - with a sharp ...

Senior ML Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
North London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £750 per day
systems end to end. * Advanced Python skills, including async programming, concurrency, and working with IO heavy workloads. * Experience building and maintaining web backends with FastAPI or similar frameworks, and extending lightweight JavaScript front ends. * Proven ability to design clear, ergonomic CLI tools and validate complex configuration workflows. * Solid understanding ...

Graph Engineers

Hiring Organisation
Intuition IT Solutions Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
automation (eg, JSON) Knowledge graph/semantic technologies where applicable (RDF, SPARQL, Neo4j/GraphDB) API/ETL engineering and data pipeline delivery (eg, FastAPI, PostgreSQL) with cloud execution as required Languages & Query: SPARQL, Scala, Python, and SQL. Semantic Technologies: RDF/triple stores, OWL, SHACL, LinkML, and ontologies such ...

Senior ML Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £700 per day
real systems. Experience building or supporting high-throughput data pipelines and distributed or scalable infrastructure. Hands-on experience with web backends such as FastAPI and pragmatic frontend development using vanilla JavaScript. Confidence designing developer-friendly CLIs and operator tooling that are reliable and hard to misuse. Experience with containerisation ...

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
RSSB are now seeking an experienced Principal Technical Lead to drive the hands-on technical delivery of a new greenfield industry services platform. This is an exciting delivery-focused role for a senior engineer who ...

Senior ML Platform Engineer - Robotics

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £750 per day
deployment. The Role You will: * Own and extend internal web applications used for robot data collection, review, QA, and dataset publishing* Build and maintain FastAPI backends, vanilla JavaScript frontends, CLI tooling, and supporting services* Improve recording workflows, state machines, config validation, batch processing, stale-data recovery, and archival processes* Containerise … have: * Senior-level software engineering experience, ideally 5+ years* Strong production Python experience* Experience with typing, async/await, threading, multiprocessing, and concurrent workloads* FastAPI or another async Python web framework* Vanilla JavaScript, including DOM manipulation, fetch, and WebSockets* Experience building internal tooling, operator tooling, platform tooling, or workflow orchestration ...

Python Backend Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
St. Albans, Hertfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550/ day Outside IR35
working on systems that continuously ingest and process large volumes of operational and telemetry-style data from connected platforms and devices. Tech environment: Python FastAPI Azure Functions Azure Service Bus/Event Hub Kubernetes/AKS Docker Cosmos DB Distributed messaging systems Event-driven microservices Real-time processing pipelines What … resilience, retries, observability, scaling, and failure handling Engineers who still code heavily day-to-day Highly desirable: IoT, telemetry, or time-series style systems FastAPI Kafka/Service Bus/RabbitMQ/Event Hub Kubernetes Azure-native backend engineering This is a fast-moving contract process with a single technical ...

Software Engineer (SC Cleared)

Hiring Organisation
Experis
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£520 - £580 per day + Inside IR35
Doing As a Software Engineer, you will: Develop user-facing applications, APIs, and backend services Build solutions using technologies such as: Python FastAPI React Enable the integration and operational use of AI and data-driven capabilities Contribute to scalable, cloud-native application development Your work is expected to span across … Innovation is prioritised over maintaining legacy systems What We're Looking For Strong experience in modern software engineering Hands-on development experience with Python (FastAPI) and/or React Experience building APIs, services, and user-facing applications Security Requirements Active SC (Security Check) clearance is require and you must ...