Signifyd

Our engineers build systems that catch bad guys. Using all available payment, user, and machine data, we have to separate legitimate credit card transactions from fraudulent in under 400ms. That means doing just-in-time mash-ups of internal data with external APIs and reducing it all into a single score with a few critical insights for end-users. To solve this problem, we're looking for world-class engineers who are eager to learn, adopt, and contribute to a reactive style of programming. The tools you build will immediately impact the 5000+ merchants that already rely on Signifyd to help them grow without fear of fraud. Our stack: Java, Python, Cassandra, MySQL, Solr, Apache Spark, Play! framework, Linux, Docker, AWS. We are hiring remote engineers in the US, as well as engineers to build out our new team in Belfast, UK. PS: Some of our awards include Best Company Culture (Entrepreneur Magazine, 2017); Fraud Innovation Firm of the Year (Finance Monthly, 2017); 50 Most Promising Startups (Bloomberg, 2017); Best Places to Work in the Bay Area (2016, 2017, 2018); Forbes FinTech 50 (Forbes, 2016).