PA-Pittsburgh, SENIOR FULL STACK DEVELOPER: Sr Full Stack Developer: Design desktop/mobile app; Implement svcs/APIs; Build reusable code/libs; Optimize performance/scalability; Implement security/data protection; Trnslt UI/UX wireframes to vis elements; Integrate FE/BE of app. Min Reqs: onsite pref / week per qtr at HQ req; BS/BA in Comp. Sci, CIS, Sys Engg. or rltd; 3 yrs exp in multi-tenant platform svc/SaaS e