As a procurement team lead in Supply Chain Management department, I worked in XXX for over three years and a half. My working days are packed with unexpected situations, which range from material shortage to vessel rerouting.
Is XXX a company name or a place? If a place, then "in" is correct, but if XXX is a company, then the preposition you want is "at" or "for."
Do you still work there? Either way, your verb tenses are askew. If you still work there, then it should be:
"As a procurement team lead
er in
the Supply Chain Management department, I
have worked in XXX for over three years and a half. My working days are packed with unexpected situations, which range from material shortage
s to vessel rerouting."
If you no longer work there, then it should be:
"As a procurement team lead
er in
the Supply Chain Management department, I worked in XXX for over three years and a half. My working days
were packed with unexpected situations, which range
d from material shortage
s to vessel rerouting."