There are not normally any unrated spacers on ships, apart from training ships. (A lot of training is done in VR simulations, allowing a great deal of simulated hands-on mentored work to be done early non-ship training.) Mindless labor on ships is done by drones; the small amount of such work for which drones are not suitable can be done on a secondary basis by the specialist crew.

To get assigned to a ship you have to complete some kind of specialist training. Spacer recruits who repeatedly fail to achieve this goal wash out of the Space Force, which has no great difficulty meeting its recruiting targets (which are low, since the SF is downsizing.)

Name

Abbreviation

Competencies

Spaceborne Infantry, Combat Engineering

IE

Spaceborne Infantry, Heavy Weapons

IH

Spaceborne Infantry, Medic

IM

Spaceborne Infantry, Power Armor Mechanic

IP

Spaceborne Infantry, Security & Policing

IS

Operator, Astrogation

OA

Operator, Communications

OC

Operator, Control & Situation

OS

Operator, Tactical

OT

(warships only)

Pilot, Atmospheric

PA

Pilot, Orbital

PO

Specialist, Administrative

SA

Specialist, Culinary

SC

Specialist, Hibernation

SH

Specialist, Logistics

SL

Specialist, Medical

SM

Technician, Armor and Protective Equipment

TA

Maintain personal protective equipment, space suits, and powered armor

Technician, Power Systems

TD

Stand Power Distribution Operator watch, maintain electrical distribution system, large electromagnetic machinery and power electronics

Technician, Electronics

TE

Maintain electronics

Technician, Informatics

TI

Maintain computers and software

Technician, Laboratory & Monitoring

TL

Maintain safety systems and process sensors, instrument calibration

Technician, Mechanical

TM

Maintain mechanical systems

Technician, Nuclear Drive

TN

Stand Propulsion Plant Operator watch, maintain some drive components

Technician, Photonics

TP

Maintain optical and laser equipment

Technician, Robotics

TR

Maintain drones and automated mechanical systems

Technician, Life Support

TS

Stand Life Support Operator watch, maintain and monitor the life support system

Technician, Thrusters and Chemical Engines

TT

Maintain RCS thrusters, chemical / thermochemical engines and systems

Technician, Weapons

TW

Maintain weapons and weapon systems (warships only)

TN/He3 - Nuclear drive technician, helium3/deuterium fusion subspecialty.