Summary
Overview
Work History
Education
Skills
Certification
Languages
Timeline
Generic

Oscar Castoreno

San Antonio,TX

Summary

Detail-oriented professional transitioning into banking and accounting with a proven background in customer service, financial transaction handling, recordkeeping, and regulatory adherence. Experienced in both supervisory and client-facing roles, demonstrating adaptability, problem-solving, and strong communication. Currently pursuing a Bachelor of Science in Accounting, with the goal of bringing accuracy, accountability, and client trust to a financial institution.

Overview

9
9
years of professional experience
1
1
Certification

Work History

Security Manager

Smith Protective Services
San Antonio, Texas
08.2023 - Current
  • Supervised and scheduled staff, ensuring adherence to organizational policies and procedures.
  • Maintained detailed reports and records, aligning with standards for accuracy, accountability, and audit readiness.
  • Delivered professional customer service, resolving concerns quickly to maintain trust and client satisfaction.
  • Coordinated staff training and performance evaluations, reinforcing reliability and policy enforcement.

Warehouse Supervisor

Amazon
San Antonio, Texas
11.2020 - 07.2023
  • Directed teams of 10–20 associates, achieving productivity goals while ensuring workflow accuracy and compliance.
  • Oversaw inventory documentation and reconciled records to support operational integrity.
  • Coordinated scheduling and cross-departmental communication to meet deadlines and performance goals.
  • Worked directly with drivers and vendors, providing clear instructions and maintaining positive business relationships.
  • Trained new employees in process accuracy and policy adherence, supporting operational consistency.

Data Entry Clerk/ Front Desk Clerk

Comprehensive Clinic for Internal Medicine
San Antonio, Texas
06.2016 - 08.2019
  • Processed cash and card payments, ensuring reconciliation and financial accuracy.
  • Entered and maintained confidential patient and financial records in line with confidentiality standards.
  • Scheduled appointments and provided excellent customer service, supporting daily business operations.
  • Organized and scanned records to maintain audit-ready documentation and data integrity.
  • Entered patient data into electronic health records efficiently.
  • Performed data entry from paper documents, emails, and other sources into computer systems.

Education

Bachelor of Science - Accounting

Western Governors University
08-2026

Associate of Arts - Liberal Studies

St. Philip's College
05-2019

High School Diploma -

Brackenridge High School
San Antonio
05-2019

Skills

  • Accurate/precise Cash Handling
  • Data entry & database management
  • Recordkeeping & documentation accuracy
  • Financial accuracy & accountability
  • Confidential records management
  • Customer service (5 years)
  • Bilingual: English & Spanish
  • Microsoft Excel & Windows proficiency
  • Scheduling & workflow coordination
  • Leadership & staff training

Certification

  • PSB Level 4 Personal Protection Officer License
  • PSB Level 3 Security Guard License
  • PSB Level 2 Security Guard License
  • Stop the Bleed Certified

Languages

English
Native/ Bilingual
Spanish
Limited

Timeline

Security Manager

Smith Protective Services
08.2023 - Current

Warehouse Supervisor

Amazon
11.2020 - 07.2023

Data Entry Clerk/ Front Desk Clerk

Comprehensive Clinic for Internal Medicine
06.2016 - 08.2019

Bachelor of Science - Accounting

Western Governors University

Associate of Arts - Liberal Studies

St. Philip's College

High School Diploma -

Brackenridge High School

Similar Profiles

CREATE PROFILE