Was contacted by their HR with inital phone screen. Did a second round phone interview with in house techncial recruiter , very positive. Never heard back. I followed up with an email, still no response. A month later a different in house recruiter contacted me. I responded, and got no response. I contacted the original hr person, she said she would follow up and let me know what was going on. A week later, no response. I emailed her back, still no response. That's quite rude.