Of all the Access Cards you can find in the System Shock remake, getting into Engineering is one of the hardest to achieve. The only way to get into the Delta Grove (also known as Engineering) is to find the Access Card.
System Shock 1 Remake 100% Cinematic Walkthrough (Hard, All Collectibles) 08 ENGINEERING DECK
Many Engineering Access Cards spawn on desks, shelves, in briefcases, and often near an objective. The same cannot be said for the Engineer Access Card. It is highly unlikely that you will encounter this card, as it is hidden from the standard path.
Here you will find the Engineering Access Card in the System Shock remake.
The Engineering Access Card has a permanent spawn in Research Labs in System Shock. This is the second level of Citadel Station and can only be accessed via the Medical Elevator. The card in question is located in the Central Hub, but there is no obvious way to access it. Hidden behind the wall of the Central Hub, you will need to head to the Delta Quadrant (on the southwest side of Research) and solve the Junction Box puzzle.