Checkr

For the unfamiliar, Checkr's a 5 year old company, redefining the way background checks are run today and how they influence the job market of the future. From the YC S14 class to raising a $160 million Series D last month to the profitable, fast-growing company we are today, it's been quite the ride. A little about our stack: Ruby/Sinatra/Rails/gRPC, MySQL, Postgres, Mongo, and Kafka for queueing. React frontends, growing Golang and Python microservices, Kubernetes and Docker for deploying.