Tiera Guinn Fletcher is an American engineer who graduated from MIT in 2017 and works for Boeing. She is one of the designers and structural analysts building the Space Launch System for NASA which is set to send people to Mars.Tiera Guinn Fletcher was born in the greater Atlanta area in Georgia. Her mother Sheila is an accountant and her father Emery Guinn, Jr, is a construction worker. Her parents encouraged her to calculate things and measure things in her daily life. These exercises, including coupon clipping, totaling up grocery receipts, and learning about the applications of architecture, challenged Fletcher and set her apart from other kids her age. At eleven years old, she zeroed in on her interest in Aerospace engineering while participating in an aerospace program put on by Lockheed Martin.She was married in July 2017 to Myron Fletcher, an aerospace engineer who also works at Boeing, being a pilot. Both she and her husband share an interest in influencing young people to join the world of STEM along with increasing the diversity of STEM fields.