Summary
Overview
Work History
Education
Skills
Websites
Certifications, Awards & Activities
Timeline
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Gregory Shayne Portis

Plymouth

Summary

Strategic and results-driven MBA graduate with a strong background in sales administration, business development, and client relations within the certification and health services sector. Proven track record of supporting C-suite stakeholders, managing complex sales operations, and contributing to the growth of key business accounts. Demonstrates exceptional communication, project coordination, and data analysis skills with a strong foundation in executive leadership.

Overview

10
10
years of professional experience

Work History

Business Development Manager

NSF International
06.2019 - Current
  • Serve as a key liaison for Supply Chain Food Safety sales, managing communication with CEOs, QA Managers, and business owners.
  • Oversee Salesforce data entry, quote generation, and project tracking for food certification programs.
  • Prepare weekly sales performance reports and provide strategic updates to global senior leadership.
  • Coordinate contract management, RFP responses, and support tradeshows and internal business initiatives.
  • Supported compliance-driven sales processes across 100 client accounts annually, ensuring contractual and regulatory accuracy.
  • Contributed to services under 10 globally recognized certification schemes, including GFSI, SQF, and Non-GMO Project.
  • Played a key role in Salesforce processing and proposal support for over three million dollars in annual revenue.
  • Helped streamline reporting systems shared across five global business units, improving forecasting accuracy and efficiency.

Guest Experience Manager

Joyology
09.2021 - 09.2024
  • Consult with patients and customers to recommend cannabis products for therapeutic use based on symptoms, lifestyle, and dosage requirements.
  • Ensure compliance with state regulations and maintain accurate inventory and product handling procedures.
  • Provide education on new products, proper usage, and cannabis strains while supporting safe consumption practices.

Guest Experience Manager

LIV Cannabis
09.2024 - 2025
  • Consult with patients and customers to recommend cannabis products for therapeutic use based on symptoms, lifestyle, and dosage requirements.
  • Ensure compliance with state regulations and maintain accurate inventory and product handling procedures.
  • Provide education on new products, proper usage, and cannabis strains while supporting safe consumption practices.

Behavior Technician Recruiter

Centria Autism Services
10.2018 - 07.2019
  • Recruited and onboarded behavior technicians across the U.S. to support growth in autism services.
  • Sourced talent via LinkedIn, Indeed, and cold-calling; conducted interviews and tracked candidates.
  • Maintained integrity of ATS data and ensured timely candidate communication.

Recruiting Coordinator

Huffmaster
06.2017 - 08.2018
  • Staffed healthcare professionals for short-term labor disruption assignments nationwide.

Disney College Program

Walt Disney World Resort
01.2016 - 08.2018
  • Participated in a highly selective internship combining on-the-job experience with leadership development and guest service training.
  • Provided exceptional customer service and maintained Disney brand standards in high-volume, fast-paced settings.
  • Rotated through various guest-facing roles and collaborated across departments to support park operations and enhance guest satisfaction.

Marketing Intern

Prestige Athletics
09.2015 - 01.2016
  • Managed social media and promoted event activities across digital platforms.

Education

M.B.A. - Executive Leadership

University of Denver, Daniels College of Business
06.2025

B.B.A. - Marketing

Eastern Michigan University
08.2018

Skills

  • Salesforce CRM, Microsoft Office Suite, Data Reporting
  • Customer Relationship Management and Proposal Development
  • Adobe Creative Suite, Web Design (HTML, Dreamweaver)
  • Public Speaking, Trade Show Engagement, Team Leadership

Certifications, Awards & Activities

  • National Society for Collegiate Scholars
  • SQF and HACCP Certification
  • American Marketing Association
  • Northville Stallions Youth Football Coach
  • Eastern Michigan University Cheer Team
  • Disney College Program Graduate

Timeline

Guest Experience Manager

LIV Cannabis
09.2024 - 2025

Guest Experience Manager

Joyology
09.2021 - 09.2024

Business Development Manager

NSF International
06.2019 - Current

Behavior Technician Recruiter

Centria Autism Services
10.2018 - 07.2019

Recruiting Coordinator

Huffmaster
06.2017 - 08.2018

Disney College Program

Walt Disney World Resort
01.2016 - 08.2018

Marketing Intern

Prestige Athletics
09.2015 - 01.2016

M.B.A. - Executive Leadership

University of Denver, Daniels College of Business

B.B.A. - Marketing

Eastern Michigan University