Zaljan has an intimidating yet watchful presence. He was raised in Westcrown in Cheliax and as a young boy spent most of his time in temples because his mother didn't want him around to remind her of what she gave up for him. She has never spoken of what she lost. She has only alluded that she gave up everything because of him. At the temple, his time was spent watching the priests interact with others.
He is suspicious of others and their interactions with him. He has been used in the past by others for his size and strength. Because of this, he is slow to trust and does not care to help others if it doesn't help him as well.
He learned a barbarian's ways from an adventuring Half-Orc, Davor Borszt, who spent time in a temple recovering from wounds. He also taught Zaljan of Gorum, whom Zaljan still prays to before all other gods.
He has served as a guard for some short term jobs and is looking for a longer term job, maybe as a noble family's guard, as he has some knowledge of nobility from his days spent in the temple.
On his last or current job he served as a guard for a merchant.
While he isn't lawful, he learned that when he doesn't work, he doesn't have money to buy food. While he has no qualms about thieving and robbing, he's found that you only break the law in Westcrown when you have good reason.