These Occupations are pretty powerful, as such things go, but I don't think they're unrealistic. Starship crews are very well trained, and I don't give two hoots about party balance. It might tend to make a lot of folks play "Ex-Starfleet" characters, but that's the risk, ain't it?
Wealth Bonus indicates folks who aren't getting everything taken care of by Starfleet or the Romulan Star Navy. You would also let it kick in if the character had left Starfleet in a Wesley Crusher Moment.
The main point of using Occupations instead of the more common "Starship Officer Class" concept is to allow a character described as Rear Admiral Dash Ramrod, Charismatic5/Tough4/Dreadnought2 and still be a Starfleet character. More diverse characters that way!
Command Officer
The command division is the corps of officers within Starfleet who specialize in command and control functions on starbases, aboard starships, and at Starfleet Command. Members of the command division are trained in leadership and have tactical training allowing them to decisively take action in organizing and mobilizing Starfleet crews to perform missions. Command officers include most all of the admiralty, captains, executive officers, adjutants, pilots and flight controller (or helmsman). Command division personnel also fill posts as tactical officers and sometimes in ordinance departments. Most interstellar nations’ fleets have a similar officer’s corps.
Prerequisite: Age 23+
Skills: Choose 4 of the following skills as permanent class skills. If a skill you select is already a class skill, you gain a +1 competence bonus on checks using that skill.
Bluff, Computer Use, Diplomacy, Gather Information, Intimidate, Knowledge (Tactics), Knowledge (Technology), Navigate, Pilot, Sense Motive
Bonus Feat: Alertness, Action Boost, Athletic, Attentive, Cautious, Confident, Creative, Deceptive, Educated, Endurance, Focused, Gearhead, Jack of all Trades, Meticulous, Spacer, Trustworthy
Non-Starfleet Wealth Increase: +1
Engineering
On any space vessel, engineers are officers assigned to monitor and maintain the starship’s functionality. They often do most of the “grunt work” that is involved in keeping a ship or space station up and running. They are expected to tackle all the problems that drain the ship’s resources or lower its efficiency.
Prerequisite: Age 23+
Skills: Choose 4 of the following skills as permanent class skills. If a skill you select is already a class skill, you gain a +1 competence bonus on checks using that skill.
Computer Use, Craft (Electronic), Craft (Mechanical), Craft (Structural), Demolitions, Disable Device, Investigate, Knowledge (Earth and Life Sciences), Knowledge (Physical Sciences), Knowledge (Technology), Profession (Engineer), Repair, Research
Bonus Feat: Action Boost, Alertness, Attentive, Builder, Cautious, Confident, Creative, Educated, Focused, Gearhead, Jack of all Trades, Meticulous, Spacer, Studious
Medical Officer
The medical division is the corps of officers and crewmen within Starfleet who specialize in maintaining the wellbeing of Starfleet personnel..
Prerequisite: Age 25+
Skills: Choose 4 of the following skills as permanent class skills. If a skill you select is already a class skill, you gain a +1 competence bonus on checks using that skill.
Computer Use, Craft (Pharmaceutical), Diplomacy, Gather Information, Investigate, Knowledge (Behavioral Sciences), Knowledge (Earth and Life Sciences), Knowledge (Physical Sciences), Knowledge (Technology), Profession (Doctor), Sense Motive, Treat Injury, Survival
Bonus Feat: Action Boost, Surgery, Xenomedic, Alertness, Athletic, Attentive, Cautious, Confident, Creative, Educated, Endurance, Focused, Gearhead, Jack of all Trades, Medical Expert, Meticulous, Studious, Trustworthy, Ultra Immune System
Non-Starfleet Wealth Increase: +1
Operations Officer
The operations division is the corps of officers and crewmen within Starfleet who specialize in services and military functions on starbases, aboard starships, and at Starfleet Command. Members of the operations division may specialize in a ship or base service, staff officers, administration, or military operations. By the 24th century, this division had new postings established on ships, such as operations managers (aka chiefs of operations).
Prerequisite: Age 23+
Skills: Choose 4 of the following skills as permanent class skills. If a skill you select is already a class skill, you gain a +1 competence bonus on checks using that skill.
Computer Use, Knowledge (Physical Sciences), Knowledge (Tactics), Knowledge (Technology), Pilot, Repair, Spot
Bonus Feat, Action Boost, Alertness, Athletic, Attentive, Builder, Cautious, Confident, Creative, Deceptive, Educated, Focused, Gearhead, Jack of all Trades, Improved Initiative, Meticulous, Spacer, Studious, Starship Operation (Heavy), Starship Operation (Light), Starship Operation (Mediumweight), Starship Operation (Superheavy), Starship Operation (Ultralight), Starship Gunnery
Non-Starfleet Wealth Increase: +1
Security Officer
The Starfleet Security agency is responsible for security aboard all Starfleet and some Federation outposts, vessels, and facilities. In this function, they act in ways analogous to local and regional police agencies, but Starfleet Security's mandate extends much farther than that. The agency is responsible for maintaining and enforcing Starfleet Security regulations, procedures and policies on all Starfleet and affiliated facilities, outposts, and vessels. In addition, this agency is responsible for security clearances of all Starfleet/UFP personnel.
Prerequisite: Age 22+
Skills: Choose 4 of the following skills as permanent class skills. If a skill you select is already a class skill, you gain a +1 competence bonus on checks using that skill.
Bluff, Computer Use, Craft (Mechanical), Demolitions, Diplomacy, Disable Device, Gather Information, Intimidate, Investigate, Knowledge (Behavioral Sciences), Knowledge (Enemy Lore), Knowledge (Streetwise), Knowledge (Tactics), Knowledge (Technology), Move Silently, Listen, Sense Motive, Spot, Survival, Treat Injury
Bonus Feat: Action Boost, Acrobatic, Alertness, Athletic, Attentive, Cautious, Confident, Creative, Deceptive, Educated, Endurance, Focused, Gearhead, Great Fortitude, Iron Will, Lightning Reflexes, Meticulous, Toughness, Stealthy, Trustworthy, Archaic Weapons Proficiency
Non-Starfleet Wealth Increase: +1