About us. Siwa Oasis Aesthetics. Medical Spa is a small business in Saddle Brook, NJ. We are professional, agile, professional and our goal is to Provide Excellent Service. Our work environment includes. Modern office setting. Food provided. Modern office setting. Growth opportunities. On-the-job training. Safe work environment. Lively atmosphere. Flexible working hours. Siwa Oasis Aesthetics has an exciting opportunity where you can apply your s...