Proposal Specialist Denver, 800 18th Street, Denver, Colorado, United States of America Houston, 12141 Wickchester Lane, Houston, Texas, United States of America Lenexa, 8345 Lenexa Drive, Lenexa, Kansas, United States of America Los Angeles, 510 West Sixth Street, Los Angeles, California, United States of America Remote, 8345 Lenexa Drive, Lenexa, Kansas, United States o