Geocoding system assigning three-word addresses to 3m squares worldwide
what3words runs a global addressing system that maps every 3m x 3m square to a unique three-word combination. Its stack mixes native mobile (Swift, Java, Xcode, Espresso) with heavy test automation (Appium, Playwright, Cucumber, TestNG), and job posts point to AI-assisted mobile QA and subscription-flow testing. Commerce plugins for Shopify, WooCommerce and BigCommerce match an active push to embed the product in ecommerce checkouts.
what3words is a London-based, privately held company founded in 2013 with 51–200 employees. It has split the globe into 3m x 3m squares, each identified by a unique three-word address, so people can pinpoint precise spots such as entrances or landing points. Businesses, governments and NGOs use the system for delivery, logistics, navigation and emergency response, while consumers use it to find and share locations. The platform runs on AWS and Kubernetes with Python, Scala, C++ and TypeScript, serving web, iOS and Android apps.
what3words uses AWS, Kubernetes, Docker, Redis, Python, Scala, C++, TypeScript, React, Swift and Java, with BigQuery and Athena for data and Prometheus and Grafana for monitoring.
what3words is headquartered in London, United Kingdom. It was founded in 2013 and is privately held.
Job posts point to ecommerce platform integrations, UK business sales, map site and account management development, self-service infrastructure provisioning, and AI-assisted mobile QA automation.
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what3words's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
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