Why You Should Work With Us. As a Sinceri Senior Living company, we are a fun loving. employee-centric community like no other. Maybe that’s why we have been certified. by our employees as a Great Place to Work ® for our 5th Year in a row. Create. your healthcare career with us and learn about all the career growth. opportunities we offer. Have we sparked your interest yet. Apply. online and join our wonderful team. Questions about the applicatio...