Gregory Shayne Portis
Senior Sales Manager
Plymouth,MI
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
LIV Cannabis
09.2024 - 01.2025
- 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.
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.
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
MBA - Executive Leadership
University of Denver, Daniels College of Business
Denver, Colorado06.2025
BBA - Marketing
Eastern Michigan University
Ypsilanti, Mi08.2018
Skills
- Salesforce CRM
- Microsoft Office Suite
- Data Reporting
- Customer Relationship Management
- Proposal Development
- Adobe Creative Suite
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 - 01.2025
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
MBA - Executive Leadership
University of Denver, Daniels College of Business
BBA - Marketing
Eastern Michigan University