Source: Starfinder Core Rulebook p.121
When you cast an instantaneous spell that deals damage, you can increase the spell's damage by half your technomancer level. This increased damage applies to all creatures damaged by an area spell, but for spells that target multiple creatures with multiple rays or other attacks (such as magic missile), the increased damage applies only to a single ray or missile. This increased damage doesn't apply to ongoing damage from the spell (such as bleed or burn). This magic hack doesn't increase ability damage or other spell effects, only damage to Stamina Points or Hit Points.