She's definitely an engineer,(Her tattoo) so she's a builder. Turrets bore her, to dad's disappointment, but Rein's shield intrigued her at an early age.
She builds a shield enhancement matrix with her wrench. This doubles the self-healing rate of all friendly shields within range.
Primary weapon is a short range shotgun.
Ability 2 is a repulsor burst field, using her personal shield armor. At full shield health, when repulsor burst is activated, she she gets launched the opposite direction she's pointing at, approximately the same distance as Pharah's launching ability. This halves the health of her armor.
Her secondary fire is a small personal shield like Rein's, but with only 100 points.
Ultimate: KPK Matrix
When activated, all friendly's shields absorb kinetic energy from incoming projectile damage for 1.5 seconds and converts it to potential energy. This potential energy is stored until individual heroes fire their primary weapon. Half the damage absorbed is fed into the hero's primary for one shot.
Okay, I gotta go back to work