Our first API was to programmatically send physical mail. Our second, announced last month (https://venturebeat.com/2017/05/31/ycs-continuity-fund-leads...), is CASS-certified address verification. Our long-term goal is to provide the building blocks for developers to automate the offline world through APIs.
I'm the head of engineering at Lob. In between my last job and this one, I spoke to 42 organizations before I found what I was looking for in Lob: an exceptional team at the beginning of its growth phase, and also a company with a track record of being deliberate about its culture and which is intentionally building a good place to work.
We are a small and mighty engineering team with a ton of product and infrastructure problems to solve as we keep pace with rapid growth. So, we're currently looking for experienced software engineers who can take ownership of entire projects. We hate contrived interviews, so our process rewards practical problem solving (based on real problems we've faced) and excellent communication.
Apply at https://lob.com/careers or drop me a line at firstname.lastname@example.org if this intrigues you!