Summary
Overview
Work History
Education
Skills
Certification
Languages
Timeline
Generic

Oscar M. Cerna

La Grange,KY

Summary

Accomplished leader with over 20 years of combined civilian and military experience in operations management, customer service, sales, training, and personnel leadership. Demonstrated expertise in supervising large teams, implementing process improvements, and enhancing organizational performance. Proficient in conflict resolution, team building, and cultivating a culture of accountability across diverse environments. Bilingual in English and Spanish, with an active Secret Clearance.

Overview

24
24
years of professional experience
1
1
Certification

Work History

Territory Representative

United States Postal Service
11.2024 - Current
  • Lead the end-to-end sales process with business customers, from prospecting and needs analysis to closing and follow-up.
  • Apply market research to identify new business opportunities and expand market share.
  • Collaborate with cross-functional teams to deliver customized solutions and ensure customer satisfaction.
  • Conducted regular sales meetings, presenting updates on performance metrics and discussing improvement strategies.
  • Executed new promotions and marketing campaigns in territory.

First Sergeant

U.S. Air National Guard
05.2023 - Current
  • Senior enlisted advisor to the Mission Support Group/ Security Forces Commander, responsible for the readiness, morale, welfare, and discipline of over 200 Airmen.
  • Guided leadership through administrative actions, complaints, and personnel challenges, ensuring mission success.
  • Facilitated communication between enlisted members and leadership, providing mentorship and conflict resolution.
  • Excellent communication skills, both verbal and written.
  • Developed and maintained courteous and effective working relationships.
  • Self-motivated, with a strong sense of personal responsibility.
  • Worked effectively in fast-paced environments.
  • Skilled at working independently and collaboratively in a team environment.

Customer Service Supervisor

United States Postal Service
01.2024 - 11.2024
  • Supervised bargaining-unit employees in retail and delivery operations, ensuring compliance with USPS standards.
  • Assigned work schedules, monitored daily performance, and delivered training to maximize operational efficiency.
  • Implemented process improvements that enhanced customer service and streamlined workflows.
  • Promoted a positive work environment through open communication channels, fostering team collaboration and high morale.
  • Coached employees through day-to-day work and complex problems.

City Carrier / Acting Supervisor

United States Postal Service
10.2001 - 01.2024
  • Delivered and processed mail on assigned routes, ensuring timely and accurate service to residential and business customers.
  • Managed daily route preparation, including sorting and bundling mail.
  • Frequently served as Acting Supervisor, overseeing carrier operations and resolving customer concerns.

First Sergeant

U.S. Air Force Reserve
05.2021 - 04.2023
  • Advised commanders on personnel readiness, discipline, and welfare.
  • Oversaw programs to support professional development, family readiness, and resilience.
  • Coordinated support services for Airmen facing legal, medical, or administrative challenges.
  • Worked flexible hours across night, weekend, and holiday shifts.

Military Training Instructor (MTI)

U.S. Air Force Reserve
10.2019 - 05.2021
  • Trained, mentored, and transformed over 400 civilians into professional Airmen.
  • Delivered 280+ hours of structured instruction covering military standards, fitness, discipline, and leadership.
  • Recognized for excellence in training and awarded 12 academic credit hours toward CCAF in Education & Training Management.
  • Led military personnel through rigorous physical fitness regimens, contributing to increased readiness and operational effectiveness.

Security Forces Specialist

U.S. Air National Guard / U.S. Air Force Reserve
03.2015 - 10.2019
  • Conducted patrols, emergency response, and incident investigations.
  • Delivered training sessions to educate personnel on security policies and procedures.
  • Collaborated with team members to maintain situational awareness, resulting in a safer environment for all personnel.
  • Improved emergency response times through the development and implementation of effective training exercises.

Education

Bachelor of Science - Administrative Studies

Nova Southeastern University
Fort Lauderdale, FL

Associate of Science - Criminal Justice

Community College of the Air Force
Maxwell-Gunter AFB, AL

Skills

  • Leadership & Team Development
  • Training & Instruction
  • Sales & Customer Engagement
  • Conflict Resolution & Mediation
  • Strategic Planning & Resource Management
  • Bilingual: English / Spanish
  • Goal oriented

Certification

  • Secret Clearance (Active/Eligible)
  • Weapons Instructor Certification
  • Professional Military Education: Airman Leadership School, NCO Academy, Senior NCO Academy, First Sergeant Academy, Senior Enlisted Joint PME I & II
  • Myers-Briggs Type Indicator (MBTI) Certification
  • Negotiation & Dispute Resolution Training

Languages

Spanish
Native or Bilingual

Timeline

Territory Representative

United States Postal Service
11.2024 - Current

Customer Service Supervisor

United States Postal Service
01.2024 - 11.2024

First Sergeant

U.S. Air National Guard
05.2023 - Current

First Sergeant

U.S. Air Force Reserve
05.2021 - 04.2023

Military Training Instructor (MTI)

U.S. Air Force Reserve
10.2019 - 05.2021

Security Forces Specialist

U.S. Air National Guard / U.S. Air Force Reserve
03.2015 - 10.2019

City Carrier / Acting Supervisor

United States Postal Service
10.2001 - 01.2024

Associate of Science - Criminal Justice

Community College of the Air Force

Bachelor of Science - Administrative Studies

Nova Southeastern University

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