Hanna Serna
Fountain Valley,CA
Summary
Detail-oriented and dependable professional with 5+ years of experience in customer service, cash handling, and operations management. Proven ability to work in fast-paced environments, maintain confidentiality, and support process improvement initiatives. Adept at identifying discrepancies, solving problems under pressure, and providing high-quality member support.
Eager to bring accuracy, compliance, and strong communication skills to a fraud detection team.
Overview
6
6
years of professional experience
Work History
Patient Navigator
Edinger Medical Group
05.2025 - Current
- Manage high-volume inbound calls to schedule appointments, assist with inquiries, and provide exceptional service to patients.
- Respond promptly and professionally to patient messages via portal, text, and email, ensuring
timely and accurate communication. - Coordinate appointment scheduling with medical providers and departments to optimize patient access and care.
- Maintain confidentiality of patient information in compliance with HIPAA and medical office protocols.
Store Manager
Dollar Tree
02.2025 - 04.2025
- Oversaw daily operations including inventory control, cash management, and opening/closing procedures.
- Reviewed transaction activity and balanced cash drawers to identify and resolve discrepancies.
- Provided coaching on compliance with store policy, improving team accountability and accuracy.
- Monitored store activity for potential loss and collaborated with leadership on incident resolution.
- Maintained confidential employee and transaction records, ensuring compliance with internal protocols.
Merchandise Manager
Dollar Tree
05.2022 - 02.2025
- Verified inventory accuracy against purchase orders and documented discrepancies for resolution.
- Coordinated with vendors and internal teams to track inbound shipments and manage store stock levels.
- Completed and maintained records for product handling, helping prevent inventory shrinkage.
- Supported store leadership with audits and inventory-related reporting.
Cashier
Dollar Tree
02.2019 - 05.2022
- Handled high-volume cash and card transactions with accuracy, minimizing errors and discrepancies.
- Maintained confidentiality of customer information and processed transactions in compliance with policy.
- Provided exceptional service while managing multiple tasks in a fast-paced environment.
- Supported loss prevention efforts by identifying unusual transaction patterns and reporting concerns.
Education
High School Diploma -
Fountain Valley High School
Fountain Valley, CA06.2019
Skills
- Risk Awareness & Loss Prevention
- High-Volume Cash Handling
- Confidential Information Protection
- Multisystem Navigation
- Member Service & Support
- Problem Solving & Investigation
- Fast-Paced Task Management
- Strong Attention to Detail
Timeline
Patient Navigator
Edinger Medical Group
05.2025 - Current
Store Manager
Dollar Tree
02.2025 - 04.2025
Merchandise Manager
Dollar Tree
05.2022 - 02.2025
Cashier
Dollar Tree
02.2019 - 05.2022
High School Diploma -
Fountain Valley High School
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