Was referred by an employee. HR reached out and conducted a phone screening, and afterwards encouraged me to apply online. Applied, and a week later received a rejection email. Moved on. About 3 weeks later, received an email that they wanted to interview me, but that I needed to apply. Told them I already applied and was rejected. They told me it was a mix up, and they wanted to interview me. Set up interview time. Panel interview with 3 senior members. They told me it was a "getting to know you" interview, and from there, it would be another 3 rounds of interview. Thought the interview went well. Followed up with HR afterwards for feedback. No response. Attempted additional follow up with no response. Completely ghosted. Moved on. But who knows, they may come back in 3 months for the next round, noting a mistake.