Four major logistics companies will employ 10,000 more workers starting next week ahead of the Chuseok holiday season.
CJ Logistics reported 49.4 billion won ($43 million) net profit in the second quarter, up more than 30 percent on year.
Koreans are receiving far more packages than they did before the pandemic, with the rate of parcel deliveries for the very young and the old jumping the most. Food orders have risen especially fast.
A delivery strike is coming to an end after workers and logistics companies struck an agreement Wednesday.
A logistics center in Songpa, Seoul, on Tuesday remains empty as delivery workers went on strike.
Hanjin Transportation and Lotte Global Logistics raised parcel delivery fees by up to 2,000 won ($1.80) for retail clients last month.
The grand bargain that was supposed to right the wrongs in the delivery business and avert a strike is now being questioned by a key constituency.
A flurry of delivery-worker deaths reported earlier this year generated a great deal of interest and resulted in a rare consensus,
Logistics companies and their contractors have been fined for safety violations by the Ministry of Employment and Labor.
Companies should restrict the working hours of parcel delivery workers to around 10 hours a day, according to the government, to prevent overwork that leads to accidents and possibly even suicides.