Randall Rentz
Palm Coast
Summary
Results-driven project manager with a focus on enhancing operational reliability in HVAC and wireless infrastructures. Successfully managed preventative maintenance for thousands of cell sites, optimizing performance and compliance. Skilled in leading cross-functional teams and executing projects within budget and timelines, contributing to overall client satisfaction and efficiency.
Overview
13
13
years of professional experience
Work History
Project Manager-HVAC Maintenance/Critical Infrastructure
Liberty Mechancial
Palm Coast
07.2025 - Current
- Commissioned HVAC systems for critical infrastructure in data centers in Las Vegas and Atlanta, enhancing environmental control and system performance.
- Managed preventative maintenance program for 8,000 AT&T cell sites, ensuring operational reliability and compliance with industry standards.
- Led cross-functional teams to execute project plans and timelines.
- Managed project budgets and resource allocations effectively.
- Facilitated communication between stakeholders and team members regularly.
Project Manager-HVAC Preventative Maintenance
Mastec
Palm Coast
11.2024 - 06.2025
- Oversaw preventative maintenance operations for 12,000 AT&T cell sites to ensure optimal performance and reliability.
- Led project planning and execution for telecommunications infrastructure installations.
- Coordinated cross-functional teams to ensure timely project delivery.
- Managed project budgets and resources to optimize efficiency.
Account Manager
Managed Data Associates
Bunnell
03.2024 - 07.2024
- Developed and maintained strong, long-lasting customer relationships to enhance client satisfaction and retention
- Oversaw customer account management, negotiating contracts and agreements to align with client needs and maximize profitability
- Led point of contact for all account-specific matters, ensuring timely resolution of client inquiries
- Low Voltage Cable sales. Implemented distributed antenna systems to enhance signal coverage | Executed fiber-to-the-home installations to provide high-speed internet | Structured Cabling | OSP | ISP
Project Manager/Estimator (Remote)
Connectivity Wireless
Duluth
11.2019 - 03.2024
- Delivered accurate estimates within tight deadlines by utilizing effective time management skills and prioritizing tasks effectively.
- Evaluated subcontractor bids to ensure accurate pricing and scope inclusion for each project.
- Achieved consistent profitability on projects through diligent monitoring of actual costs against budget estimates.
- Improved client satisfaction by providing detailed breakdowns of project costs and timelines.
- Led post-project evaluations to identify areas for improvement in future estimating processes.
- Supported sales teams in creating presentations that effectively highlighted Connectivity Wireless’ capabilities and market competitiveness.
Project Coordinator
Connectivity Wireless
Duluth
05.2019 - 11.2019
- Coordinated cross-functional teams to achieve seamless collaboration on project objectives.
- Facilitated regular meetings to enhance team collaboration and foster a positive work environment.
- Elevated overall quality of completed projects by consistently monitoring progress and addressing issues proactively.
- Resolved conflicts and obstacles promptly to maintain smooth workflow across departments.
- Enhanced team collaboration through regular meetings, fostering a positive work environment to attain increased productivity.
- Improved client satisfaction with timely updates and transparent communication throughout the project lifecycle.
Purchase Order Specialist
American Tower
Smyrna
02.2018 - 12.2018
- Built strong relationships with suppliers, negotiating favorable terms to secure timely delivery of services.
- Enhanced customer satisfaction by proactively resolving issues that could delay project timelines.
- Facilitated new order placements, changes to existing orders, and order cancellations for customers.
- Increased boosted customer satisfaction by spearheading any issue that could cause delay in project’s timeline.
Production Manager
SEL Development, LLC
Cumming
03.2017 - 02.2018
- Spearheaded process improvements, achieving reduced cycle time while optimizing existing resources.
- Managed multiple projects concurrently, delivering on-time results within budget constraints.
- Managed daily production schedules and workflows for manufacturing operations.
- Supervised team performance and ensured adherence to safety protocols.
- Coordinated with quality control to maintain product standards and specifications.
Project Manager
Axis Teknologies, LLC
Sandy Springs
05.2015 - 03.2017
- Oversaw Verizon’s Cell Site Preventative Maintenance Program for 8,000 cell sites across Arizona and Las Vegas markets.
- Managed maintenance for 8000 cell sites.
- Managed project timelines and resources for multiple client initiatives.
- Coordinated cross-functional teams to ensure project alignment and communication.
- Developed project plans detailing scope, milestones, and deliverables.
Project Manager
WAVSYS, LLC
Duluth
08.2014 - 05.2015
- Collaborated with senior management to align TMO project objectives with strategic company initiatives, enhancing program success.
- Managed project timelines and resources for multiple client initiatives.
- Coordinated cross-functional teams to ensure project alignment and collaboration.
- Developed project plans using Agile methodologies and management tools.
Project Coordinator
Alcatel-Lucent
Alpharetta
01.2014 - 08.2014
- Coordinated cross-functional teams to enhance collaboration and align efforts toward project goals.
- Coordinated project timelines and resources for wireless service installations.
- Collaborated with cross-functional teams to ensure project alignment and communication.
- Managed documentation and reporting for ongoing projects using project management tools.
Education
North Georgia College and State University - Health and Physical Education
North Georgia College and State University
Dahlonega, GA05-2011
Skills
- Scope definition
- Cost management
- Supplier coordination
- Scope development
- Microsoft Excel
- Team collaboration
Accomplishments
- Connection Award, Q3 2020
- Team Player Award, Q1 2023
Timeline
Project Manager-HVAC Maintenance/Critical Infrastructure
Liberty Mechancial
07.2025 - Current
Project Manager-HVAC Preventative Maintenance
Mastec
11.2024 - 06.2025
Account Manager
Managed Data Associates
03.2024 - 07.2024
Project Manager/Estimator (Remote)
Connectivity Wireless
11.2019 - 03.2024
Project Coordinator
Connectivity Wireless
05.2019 - 11.2019
Purchase Order Specialist
American Tower
02.2018 - 12.2018
Production Manager
SEL Development, LLC
03.2017 - 02.2018
Project Manager
Axis Teknologies, LLC
05.2015 - 03.2017
Project Manager
WAVSYS, LLC
08.2014 - 05.2015
Project Coordinator
Alcatel-Lucent
01.2014 - 08.2014
North Georgia College and State University - Health and Physical Education
North Georgia College and State University