Marrissa Mckissick
Chattanooga,TN
Summary
Detail-oriented professional with a strong background in business operations and process escalations. Skilled in resolving complex issues and enhancing frontline readiness through effective communication and collaboration. Recognized for optimizing workflows and improving customer satisfaction.
Overview
1
1
Certification
8
8
years of professional experience
Work History
SPECIALIST, BUSINESS SALES SUPPORT
T-Mobile
Chattanooga, USA
10.2022 - 04.2026
- Responded to process escalations, troubleshooting and guiding resolution with internal partners to enhance issue resolution.
- Created and maintained content documentation to improve order accuracy and support readiness.
- Supported frontline readiness planning by updating teams on new processes and defect resolutions to ensure operational clarity.
- Collaborated with leadership and cross-functional teams to ensure clear communications are shared with frontline staff.
- Provided peer support by explaining policies, procedures, and compliance guidelines for order processing.
ACCOUNT CARE EXPERT
T-Mobile
Chattanooga, USA
10.2020 - 10.2022
- Resolved customer escalations through 30–50 inbound calls daily, achieving high customer satisfaction.
- Provided interim peer support, guiding colleagues in resolution strategies and ensuring adherence to processes.
BRANCH MANAGER
Dinner Delivered
Chattanooga, USA
11.2017 - 10.2020
- Optimized fleet logistics and real-time dispatch systems using mapping software to guide couriers.
- Led cross-functional teams, overseeing driver onboarding and creating weekly schedules while tracking performance metrics.
- Coordinated with local restaurant managers to streamline kitchen handoffs and resolve customer and driver complaints.
Education
BACHELOR OF SCIENCE - Criminal Justice
DALTON STATE COLLEGE
DALTON, GA05-2017
Skills
Certification
- MS Office Suite
- Google Suite
- CRM & Point of Sale: Salesforce, Siebel, ASTRO POS, SAP, Zendesk, ServiceNow
- Data & Productivity: Microsoft Excel, Google Workspace, Office 365, Tableau
- Collaboration & HR: Slack, Microsoft Teams, QuickBooks, Dialpad, ZOOM
- Spreadsheets: Excel, Google Drive, Open Office, pivot tables, vertical lookups, macros, Data validation
Timeline
SPECIALIST, BUSINESS SALES SUPPORT
T-Mobile
10.2022 - 04.2026
ACCOUNT CARE EXPERT
T-Mobile
10.2020 - 10.2022
BRANCH MANAGER
Dinner Delivered
11.2017 - 10.2020
BACHELOR OF SCIENCE - Criminal Justice
DALTON STATE COLLEGE