This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Manual Test Engineer based in the United States. This role is ideal for an experienced quality engineering professional who thrives in complex, highly integrated environments. You will coordinate and execute comprehensive testing across system integration, user acceptance, end-to-end, and regression phases. Working across multiple teams and vendors, you will help ensure that critical healthcare applications meet functional, technical, and regulatory expectations. The position combines hands-on testing with test planning, risk assessment, defect management, and stakeholder coordination. You will also contribute to test strategy, reporting, and mentoring junior testing professionals. Your work will directly support the reliability and quality of large-scale healthcare technology systems.