Is this in the foreign exchange desk, fixed income or equities ?
Different area has different rules. In any case this is a sell side job.
Hedge fund / portfolio manager is on the buy side.
Citadel is not doing very well recently, made some bad bet in commodities trading. The place, in geneal, is a pressure cooker and works new comers to death.
Glad you did not fall into the trap.
In general, buy side job such as analyst, traders and portfolio managers have longer career horizon than sell side.