I applied online. The process took 4 weeks. I interviewed at Vail Systems (Deerfield, IL) in Nov 2016
Interview
1st round- 30 min HR interview
2nd round- 1 hr 30 min HR and technical interview
3rd round- 3:30 hrs Onsite Technical interview with 2 team members.
Position was put on hold and I never heard back from them.