Christa Callahan
Allenton,MI
Summary
Adaptable and reliable professional with 20+ years of customer service experience, including business ownership and shift supervision. Skilled in staff training, scheduling, recordkeeping, and resolving customer concerns. Known for calm communication, practical problem-solving, and adapting quickly to new software and procedures. Works effectively independently and with a team, bringing kindness, professionalism, and integrity to the workplace.
Overview
29
29
years of professional experience
Work History
Owner/Operator
Kawaii Bubble Tea
Clinton Township, MI
11.2016 - 10.2026
- Manage day-to-day business operations, train and support employees, coordinate schedules and workloads, and resolve customer concerns to uphold service standards.
- Address customer complaints and work toward practical resolutions while maintaining a calm, professional manner
- Assist customers in person, answer phone inquiries, and respond to messages, enhancing customer engagement and satisfaction.
- Train staff on customer service, daily procedures, and point-of-sale systems
- Use Google Workspace, point-of-sale systems, and digital records to support daily operations
- Manage staff scheduling, email correspondence, digital filing, and routine business documentation
- Organized sales and expense information while tracking inventory, purchasing inventory, and maintaining business records.
Shift Supervisor
Starbucks Coffee Company
, Michigan
04.1998 - 11.2016
- Managed operations across multiple Starbucks locations in Michigan, ensuring efficient service and adherence to brand standards.
- Supervised daily shift operations across multiple busy Starbucks stores in Michigan, coordinating employee assignments and breaks, resolving customer concerns, and maintaining service standards.
- Provided exceptional customer service in high-volume retail environments, addressing and resolving customer concerns promptly.
- Coordinated staff breaks and shift assignments to optimize daily workflow and maintain consistent service levels.
- Completed inventory counts, operational reports, and store readiness documentation
- Trained new employees and incoming store managers and assistant managers on store procedures and customer service expectations
- Balanced registers, prepared deposits, and communicated shift information to staff and management
Education
Pursuing A Bachelor's Degree -
Arizona State University
General Studies
St Clair Community College
General Studies
Oakland Community College
Skills
- Customer Service
- Complaint resolution
- Conflict de-escalation
- Customer relationship management
- Staff Training
- Scheduling
- Operational Record Management
- Inventory tracking and purchasing
- Financial Transactions Management
- Task management
- Technology: Google Workspace, Microsoft Office, point-of-sale systems, and digital recordkeeping tools Basic Excel and Google Sheets skills; currently developing proficiency
- Problem-solving skills
- Clear communication
- Careful Attention to Detail
Timeline
Owner/Operator
Kawaii Bubble Tea
11.2016 - 10.2026
Shift Supervisor
Starbucks Coffee Company
04.1998 - 11.2016
Pursuing A Bachelor's Degree -
Arizona State University
General Studies
St Clair Community College
General Studies
Oakland Community College