About this position: As the Spark Team Engineer, you will be the technical half of SPARK, Arkana’s two-person embedded unit that owns the front of our AI-native development funnel. You will build the proofs of concept that decide what Arkana makes next, real enough that the answer is trustworthy and fast enough that the answer arrives in weeks, and you will do the data work most of those answers turn on. This is deliberately a hands-on individual contributor role: there is no team to delegate to, and it stays that way by design. Working alongside the Spark Team Product Manager on focused 2-to-4-week engagements across departments, you will help close every engagement with a documented decision: advance, return, or kill. Engagements are short and embedded, so you will need to interface well with people you just met, work alongside non-technical builders with patience and without condescension, and capture how a department actually operates in days, not weeks. Seniority is dictated by the candidate: the mandate is fixed, and the level, scope, and expectations that come with it are calibrated to the person who takes it.