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Companies Using FastAPI in United Kingdom

167 companies are hiring FastAPI talent in United Kingdom, with 284 open roles.

167
Companies
284
Open Roles

FastAPI is a Python web framework used to build high-performance APIs and backend services, typically as part of a microservices or data-driven product architecture. When a company in the UK is hiring for FastAPI, they're actively building or scaling API infrastructure — a signal that they're in the market for cloud hosting, API management tooling, observability platforms, and developer tooling. With 181 companies currently hiring across 306 open roles, this is a meaningful cluster of active buyers.

Buying Signal

A company posting multiple FastAPI roles is likely mid-build on a new product or migrating away from a legacy monolith — both scenarios that create immediate budget for infrastructure, monitoring, and security tooling. They're probable buyers of cloud services (AWS, GCP, Azure), container orchestration platforms, and API gateway solutions. SDRs at companies selling developer tools, database infrastructure, or cloud observability should be prioritising these accounts now.

Top Companies50 shown

CompanyIndustryHQ LocationSizeJobsLast SeenLinks
C
Capgemini Invent
 Business Consulting and Services City of London, United Kingdom 10,001+ 12 1mo ago
Version 1
version1.com
 IT Services and IT Consulting Ireland 1,001–5,000 12 1mo ago
Roku
weareroku.com
 Software Development San Jose, United States 1,001–5,000 3 7w ago
Charlotte Tilbury Beauty
charlottetilbury.com
 Personal Care Product Manufacturing Greater London, United Kingdom 1,001–5,000 2 7w ago
Klaviyo
klaviyo.com
 Marketing Services Boston, United States 1,001–5,000 2 2mo ago
Kraken
kraken.tech
 Technology, Information and Internet City of Westminster, United Kingdom 1,001–5,000 2 2mo ago
Scopely
scopely.com
 Entertainment Providers Culver City, United States 1,001–5,000 2 7w ago
team.blue
team.blue
 Software Development Ghent, Belgium 1,001–5,000 2 7w ago
Canopius Group
canopius.com
 Insurance City of London, United Kingdom 501–1,000 2 1mo ago
Diamond Light Source
diamond.ac.uk
 Research Services South Oxfordshire, United Kingdom 501–1,000 2 2mo ago
9fin
9fin.com
 Financial Services Greater London, United Kingdom 201–500 5 7w ago
Ellison Institute of Technology Oxford
eit.org
 Research Services Oxford, United Kingdom 201–500 4 1mo ago
Methods
methods.co.uk
 Information Technology & Services Greater London, United Kingdom 201–500 3 2mo ago
proSapient
prosapient.com
 Information Services Greater London, United Kingdom 201–500 3 2mo ago
Swap
swap-commerce.com
 Software Development Greater London, United Kingdom 201–500 3 2mo ago
The Flex
theflex.global
 Real Estate City of London, United Kingdom 51–200 28 3mo ago
Nory
nory.ai
 Software Development Dublin, Ireland 51–200 5 2mo ago
ZOE
zoe.com
 Technology, Information and Internet Boston, United States 51–200 3 2mo ago
Believ
believ.com
 Services for Renewable Energy Greater London, United Kingdom 51–200 2 7w ago
Cellular Origins
cellularorigins.com
 Automation Machinery Manufacturing North Hertfordshire, United Kingdom 51–200 2 2mo ago
ClearRoute
clearroute.io
 IT Services and IT Consulting Greater London, United Kingdom 51–200 2 2mo ago
Complexio
complexio.com
 Software Development Greater London, United Kingdom 51–200 2 3mo ago
Abound
getabound.com
 Financial Services Greater London, United Kingdom 51–200 2 2mo ago
hackajob
hackajob.com
 Software Development Greater London, United Kingdom 51–200 2 1mo ago
Orbital
orbital.tech
 Software Development Greater London, United Kingdom 51–200 2 2mo ago
PhysicsX
physicsx.ai
 Software Development Greater London, United Kingdom 51–200 2 1mo ago
Sprout.ai
sprout.ai
 IT Services and IT Consulting Greater London, United Kingdom 51–200 2 1mo ago
targetjobs UK
targetjobs.co.uk
 Technology, Information and Internet Greater London, United Kingdom 51–200 2 3mo ago
Validus Risk Management
validusrm.com
 Financial Services Greater London, United Kingdom 51–200 2 2mo ago
Capsa AI
capsa.ai
 Technology, Information and Internet Greater London, United Kingdom 11–50 3 7w ago
FLOX
flox.ai
 IT Services and IT Consulting City of London, United Kingdom 11–50 3 1mo ago
Kallikor
kallikor.ai
 Technology, Information and Internet Greater London, United Kingdom 11–50 3 7w ago
TechTree
techtree.dev
 Software Development San Francisco, United States 11–50 3 2mo ago
Alphayotta
alphayotta.com
 Information Technology & Services Greater London, United Kingdom 11–50 2 1mo ago
Epistemix
epistemix.com
 Software Development Pittsburgh, United States 11–50 2 2mo ago
Monolith
monolithai.com
 Software Development Greater London, United Kingdom 11–50 2 2mo ago
Clarity
onclarity.com
 Software Development Greater London, United Kingdom 11–50 2 4mo ago
Quadrivia AI
quadrivia.ai
 Health and Human Services Greater London, United Kingdom 11–50 2 3mo ago
Stealth iT Consulting
stealth-it.com
 Business Consulting and Services Greater London, United Kingdom 11–50 2 1mo ago
Jack & Jill
jackandjill.ai
 Technology, Information and Internet 2–10 8 1mo ago
Dex
meetdex.ai
 Technology, Information and Internet Greater London, United Kingdom 2–10 3 1mo ago
Omnis Partners
omnis.partners
 Business Consulting and Services Greater London, United Kingdom 2–10 3 2mo ago
Apollo Research
apolloresearch.ai
 Technology, Information and Internet Greater London, United Kingdom 2–10 2 3mo ago
eKutir
ekutirsb.com
 Farming New Delhi, India 2–10 2 2mo ago
Skippr
skippr.ai
 Technology, Information and Internet Greater London, United Kingdom 2–10 2 1mo ago
Squeaky Wheel Promotions
squeakywheelpromotions.com
 Public Relations and Communications Services City of White Plains, United States 2–10 2 2mo ago
Chubb
chubb.com
 Insurance Zurich, Switzerland 10,001+ 3 2mo ago
Liberty Global
libertyglobal.com
 Telecommunications Greater London, United Kingdom 10,001+ 3 7w ago
SS&C Technologies
ssctech.com
 Software Development Windsor, United States 10,001+ 2 7w ago
Trafigura
trafigura.com
 Oil and Gas Singapore 10,001+ 2 2mo ago

167 companies use FastAPI. Want the full list?

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Companies with open FastAPI roles in United Kingdom. Company HQ may be in a different location.

▲Market Signal

Over 300 open roles across 181 UK companies points to sustained demand, not a hiring spike — these organisations are building FastAPI into their core stack, not experimenting. Software Development and IT Services firms account for the majority, meaning this is predominantly product and services companies scaling technical capability.

⦿Stack Intelligence

FastAPI hiring almost always co-occurs with Python, PostgreSQL, and Docker — a stack that signals containerised, data-backed API services running in cloud or hybrid environments. This combination indicates companies with enough engineering maturity to adopt modern DevOps practices, making them strong targets for CI/CD tooling, managed database services, and container security vendors.

FastAPI Hiring Landscape

Where and how companies hire FastAPI talent

By Industry

Software Development
40
Technology, Information and Internet
26
IT Services and IT Consulting
23
Real Estate
1
Financial Services
18
Business Consulting and Services
8
Insurance
5
Research Services
3

Top Roles

Senior Backend Engineer9Full Stack Developer8Backend & Frontend Developer7Full Stack Engineer7Full-Stack Software Engineer7Product-Focused Full Stack Engineer7Senior Backend & Frontend Engineer7Senior Fullstack Developer7AI Engineer6Data Engineer6Software Engineer6Backend Engineer5

Related Technologies

PythonPostgreSQLDocker

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Frequently Asked Questions

What is FastAPI?

FastAPI is a Python framework companies use to build and expose backend APIs quickly and reliably. In practice, it powers internal services, customer-facing data products, and integrations between systems. When a company is hiring for it, they're actively building production infrastructure — not prototyping.

Why should sales teams track FastAPI hiring?

FastAPI hiring is a reliable early signal that a company is investing in backend infrastructure, which typically precedes purchasing decisions around cloud, databases, and monitoring tools. A sales rep at a PostgreSQL hosting or observability vendor, for example, can use this data to time outreach before a contract is signed.

Who should be selling to companies that use FastAPI?

Vendors best positioned to sell into FastAPI-hiring companies include cloud infrastructure providers, managed database services, API security and gateway platforms, and developer productivity or CI/CD tooling vendors.