Food Service Worker — $20.00/hour — Pittsburgh, PA — choose your own hours Upshift is hiring Food Service Workers for a university cafeteria in Pittsburgh — 92 shifts open across the next month — plus hotels, stadiums and event venues across the city. About Upshift Upshift is the employer of record for more than 200,000 Upshifters working shifts at hotels, restaurants, stadiums, universities and warehouses; Upshifters rate us 9.2/10.