Dennis Caesar
Roselle
Summary
Dynamic professional with extensive experience at Thermo Fisher Scientific, recognized for consistently exceeding productivity benchmarks and ensuring OSHA compliance. Expertise in troubleshooting and installation, complemented by strong customer relations and effective cross-team communication. Proven ability to deliver high-quality results in fast-paced environments while maintaining a commitment to safety and operational excellence.
Overview
8
8
years of professional experience
Work History
Laborer
Caesar Construction Services
Roselle
01.2023 - Current
- Ensures safe, efficient operations by maintaining clean and organized job sites across diverse construction environments.
- Reads and interprets construction plans to execute labor tasks accurately.
- Assists the specialized workers with transporting materials, setting up equipment, and loading and unloading of tools.
- Mixes concrete and align structural components according to project specifications.
- Performs physically demanding work for extended periods; lift 75+ pounds independently.
Field Service Technician
Culligan International
Bensenville
01.2025 - 12.2025
- Conducted installation, maintenance, and repair of Culligan water treatment systems in residential and commercial settings.
- Delivered high-quality service for water softeners, drinking water systems, and problem water solutions to ensure customer satisfaction.
- Generated quotes and assessed customer water needs to recommend appropriate solutions.
- Diagnosed and repaired equipment through timely and efficient troubleshooting and analysis.
- Installed, upgraded, and maintained water treatment systems; performed routine service and maintenance.
- Completed service documentation accurately and promptly to support operational tracking.
- Fostered positive customer relationships and represented the company with professionalism.
- Adhered to safety protocols and company policies to ensure regulatory compliance.
Material Handler
Thermo Fisher Scientific
Hanover Park
01.2020 - 01.2023
- Received, tracked, and distributed medical-grade chemicals within a secure chemical vault, ensuring compliance with safety protocols.
- Staged chemical products systematically based on balance classifications to optimize inventory flow and minimize handling risks.
- Reviewed billing, labor, and transport reports to support accurate cost allocation and operational efficiency.
- Operated order picker, cherry picker, forklift, and dock loader to fulfill high-volume warehouse tasks and maintain throughput targets.
- Leveraged Oracle Cloud Infrastructure, Athena, and Boss databases to manage inventory, process orders, and support data integrity.
- Recognized for exceeding productivity benchmarks by consistently moving over 1,200 product lines per day.
- Served as an active member of the Safety Committee, contributing to workplace hazard assessments and continuous improvement initiatives.
Production Assembler
Power Solution International
Wood Dale
01.2018 - 12.2019
- Utilized pneumatic and air-powered tools to support high-volume mechanical assembly and maintenance tasks.
- Assembled manifolds, wired electrical harnesses, and gapped spark plugs to meet engine performance specifications.
- Installed and serviced water pumps, alternator assemblies, pulley systems, and belt-driven motors across varied configurations.
- Worked with a range of motor types, including 2.0, 4.3L, and 8.8L engines, ensuring proper fit and function.
- Operated head torch wrenches ranging from 6mm to 2 inches to perform torque-specific fastening and adjustments.
- Maneuvered motors using hydrolytic 2-ton lifts, maintaining safety standards and precision in placement.
Education
Certification - HVAC/R
ETI School of Skilled Trades
Willowbrook, Il04.2025
Skills
- Customer relations
- Manufacturing
- Freight handling
- Construction
- HVAC/R
- Client relationship development
- Troubleshooting
- Installation and maintenance of equipment
- Technical drawing expertise
- Technical schematic interpretation
- Quality-driven approach
- Performance-focused
- Proficient in prioritizing responsibilities
- Effective cross-team communication
- OSHA compliance expertise
- Clear communication skills
- Microsoft Office Suite
- Teams
- Zebra MC9200 scanner
- Oracle
Affiliations
- Fishing
- Hiking
- Spending time with Family & Friends
Timeline
Field Service Technician
Culligan International
01.2025 - 12.2025
Laborer
Caesar Construction Services
01.2023 - Current
Material Handler
Thermo Fisher Scientific
01.2020 - 01.2023
Production Assembler
Power Solution International
01.2018 - 12.2019
Certification - HVAC/R
ETI School of Skilled Trades