Summary
Overview
Work History
Education
Skills
Timeline
BusinessAnalyst
Diana  Nguyen

Diana Nguyen

Westminster,CA

Summary

Experienced assistant manager and sales professional with a strong background in automotive service, customer relations, and team leadership. Skilled in inventory management, sales, and problem-solving, with a hands-on approach to vehicle maintenance. Adaptable to diverse industries, including retail, caregiving, and logistics, with excellent customer service skills, and a commitment to efficiency and quality.

Overview

15
15
years of professional experience

Work History

Quality Assurance Specialist

Collectors Universe
Santa Ana
04.2025 - 06.2025
  • Collectors Universe (PSA) – Quality Inspector**
  • Reviewed customer requirements and specifications to ensure products met standards.

* Brief role involving authentication and inspection of collectible items.

* Maintained accuracy and quality standards in a fast-paced environment.

Private Home Caregiver

Self-employeed
Newport Beach, CA
01.2023 - 12.2024
  • - Provided daily assistance with personal care, medication reminders, and household tasks.
  • - Ensured the well-being and safety of clients by offering companionship and support.
  • - Coordinated with family members and healthcare providers to address client needs.
  • - Managed schedules and care routines to promote independence and quality of life.

Amazon Associate

Amazon Fresh
Irvine, CA
01.2020 - 09.2022
  • - Assisted in inventory stocking and quality control of perishable and non-perishable products.
  • - Provided excellent customer service, helping shoppers locate items and use store technology.
  • - Worked in a fast-paced environment, handling multiple tasks efficiently.
  • - Ensured product freshness and followed food safety protocols.

Manager of Tire Sales

Firestone Complete Auto Care, BRO
Costa Mesa, CA
03.2014 - 10.2018
  • - Led tire sales and service operations, meeting and exceeding sales goals.
  • - Provided expert recommendations on tire selection, maintenance, and vehicle safety.
  • - Managed customer inquiries, complaints, and service follow-ups to enhance satisfaction.
  • - Supervised and trained team members on sales techniques and product knowledge.
  • - Oversaw store inventory, pricing strategies, and promotions to maximize revenue.

Assistant Manager

Valvoline Instant Oil Change
Costa Mesa, CA
02.2010 - 03.2014
  • - Supervised daily operations, ensuring fast and efficient oil changes and vehicle maintenance.
  • - Trained and led a team of technicians, maintaining high service and safety standards.
  • - Assisted customers with automotive service recommendations and upsold additional products.
  • - Managed inventory, restocking supplies, and coordinating with vendors.
  • - Handled cash transactions and maintained accurate financial records.

Education

High School Diploma -

Westminster
Westminster
06-2004

Skills

  • - Automotive Knowledge & Sales (Oil changes, tire sales, vehicle maintenance)
  • - Customer Service & Communication (Handling complaints, upselling, client relations)
  • - Leadership & Training (Managing teams, coaching employees, supervising operations)
  • - Problem-Solving & Efficiency (Diagnosing issues, resolving concerns, time management)
  • - Retail & Inventory Management (Stocking, ordering, and tracking supplies)
  • - Caregiving & Personal Assistance (Patient care, companionship, and daily living support)

Timeline

Quality Assurance Specialist

Collectors Universe
04.2025 - 06.2025

Private Home Caregiver

Self-employeed
01.2023 - 12.2024

Amazon Associate

Amazon Fresh
01.2020 - 09.2022

Manager of Tire Sales

Firestone Complete Auto Care, BRO
03.2014 - 10.2018

Assistant Manager

Valvoline Instant Oil Change
02.2010 - 03.2014

High School Diploma -

Westminster
Diana Nguyen
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