There are a few rules when it comes to your scientist being in this universe.

Number 1: The scientist may have little story influence, this includes:
Large scale events such as lab catastrophes, anomaly oppression, or creation of anomalies, even including anomaly OC's made by other people, however, if you'd like to use someone's anomaly oc, do it with their consent, and the anomaly has to be a synthesis anomaly.

Number 2: The scientist may not be an overly important individual in the AAC. Such as being like, related to the creator of the corporation.

Number 3: The scientist must strictly be humanoid, no hybrids or different species

Number 4: The scientist may be any of the following professions:
Anomaly researcher - collects data on any of the five anomaly types (Volatile, Biological, Psychological, Periodic, Synthesis)

Anomaly experimenter and creator - works in a lab trying to create synthesis anomalies using technology and tools

Anomaly scribe - creates documents regarding anomalies and works with anomaly researcher

-New occupation-

Anomaly watchmen - Tasked with monitoring AAC outposts and facilities, they protect the facilities from Anomalies, and regular citizens.

Anomaly medic - Helps to care for workers and soldiers in the various facilities and outposts.

Number 5: Scientists can be connected and affiliated with one another, whether that be friends, work partners, etc.

If your scientist follows these guidelines, it might make it in.