Companion Care Needed - Full-time / Part-time

About who needs care: 85-year-old who is somewhat mobile, but struggles with some mobility issues. Conditions include mild Parkinsons and managed chronic heart failure. Need help with overnight sitting and weekend care giving (could be two separate positions). He has a daytime caregiver on weekdays. Services needed include: meal preparation, errands / shopping, light housekeeping, feeding, bathing / dressing, and mobility assistance.