Juan F. Marquez Jr.
Manvel,TX
Summary
Highly-motivated employee with desire to take on new challenges. Strong worth ethic, adaptability and exceptional interpersonal skills. Adept at working effectively unsupervised and quickly mastering new skills.
Overview
9
9
years of professional experience
2025
2025
years of post-secondary education
Work History
Mechanical Design Engineer
Tenaris Bay City
Bay City, Texas
2024.05 - Current
- Developed mechanical designs for new products and modified existing products to meet customer requirements.
- Analyzed test data from prototypes to identify areas for improvement in design.
- Verified that all components used in a system complied with industry standards before finalizing the design.
- Generated technical documentation such as drawings, BOMs, instructions. for manufacturing processes.
- Conducted stress analysis on components to determine safety factors and optimize design.
- Created 3D models of components, assemblies, and systems using CAD software.
Concrete Finisher
Torres Concrete Works
Yoakum, TX
2018.08 - 2024.05
- Spread, level, smooth and finished concrete
- Loaded and unloaded trucks
- Operated the bobcat and other concrete machinery
- Check in with truck drivers to ensure they provided the concrete on time and to the right location.
Lead Estimator/QC Inspector
Mass Transfer Limited
Deer Park, TX
2021.10 - 2022.09
- Conducted detailed quantity take-offs and prepared cost estimates for various projects.
- Reviewed drawings, specifications and other documents to determine scope of work and prepare accurate estimates.
- Analyzed contractor bids and subcontractor proposals to ensure accuracy and completeness of project costs.
- Negotiated prices with suppliers and vendors to maximize value while meeting customer requirements.
- Prepared cost breakdowns by labor, materials, equipment rentals, overhead costs and other related expenses.
- Established relationships with new vendors for obtaining competitive pricing information.
- Verified accuracy of production processes by measuring dimensions, angles, and other parameters using precision instruments.
- Maintained accurate records of all inspections conducted in accordance with company policies and procedures.
- Evaluated incoming materials received from suppliers based on established criteria such as color consistency or dimensional accuracy.
- Utilized XRF Vanta PMI gun and calibrated for optimal performance.
Plant Manager/ Batchman
SRM CONCRETE
Houston, TX
2020.10 - 2021.03
- Manage the plant make sure it's clean from dust and other materials
- Do weekly inventory checks, and end of year checks
- Supervise all the drivers and make them work together as a team
- Calling contractors to make sure they are satisfied with our business and performance
- Visiting job sites whenever I see them and try to make them use our concrete company
- Occasionally also visit finished job sites as a quality assurance
- Open and close the plants, and schedule the drivers as needed.
Detention Officer
25th 2nd Intermediate Sanction Facility
Gonzales, TX
2020.08 - 2020.10
- Supervised inmates during meals, personal hygiene and related activities for conformance to the institution's rules and regulations
- Received and processed inmates into the custody of institution; searched inmates and collected personal properties
- Transported inmates so that they would perform community service
- Filled out incident reports, verbal reports, and thinking reports according to how major or minor the incident was
- Performed perimeter checks to make sure there are no intruders or inmates would disobey the institution's rules
- Distributed medication to inmates as prescribed or directed.
Operation Supervisor/Dispatcher
ABN construction
Cuero, TX
2020.01 - 2020.08
- Oversaw the entire plant and observed the efficacy of every department to ensure smooth transitions from production to consumer
- Contacted customers to make sure customer satisfaction was met
- Performed QA/QC for every service provided
- Provided administrative support such as invoices and cash handling
- Ensure compliance with company policies and regulations
- Kept communication and reported to upper management.
Industrial Radiographer
Fox NDE
New Braunfels, TX
2018.01 - 2019.08
- Inspected pipe welds to determine their level of durability, quality, and safety
- Used radiation and sometimes heat stress to perform the inspections.
Substitute Teacher K-12
Los Fresnos CISD
Los Fresnos, TX
2017.01 - 2017.12
- Implemented existing lesson plans
- Oversaw classroom activities and assigned homework
- Following fulltime teacher's instruction and graded test/homework
- Monitored halls during free period.
Education
Associate of Science - Engineering Design Drafting
San Jacinto Community College
Houston, TXSkills
- SOLIDWORKS Software
- AutoCAD Design Software
- Leica Laser Tracking System
- X-Ray (1 year)
- Electrical systems
- Circuit design
- Heavy Equipment Operation (2 years)
- QA/QC (5 years)
- Construction Management
- Organizational Skills
- Project Management
- Detail Oriented
- Customer Service
- Supervising experience
- Plant Management
- Concrete Finishing
- Childhood development
- Forklift
- Microsoft Office (10 years)
Languages
- English
- Spanish
Timeline
Mechanical Design Engineer
Tenaris Bay City
2024.05 - Current
Lead Estimator/QC Inspector
Mass Transfer Limited
2021.10 - 2022.09
Plant Manager/ Batchman
SRM CONCRETE
2020.10 - 2021.03
Detention Officer
25th 2nd Intermediate Sanction Facility
2020.08 - 2020.10
Operation Supervisor/Dispatcher
ABN construction
2020.01 - 2020.08
Concrete Finisher
Torres Concrete Works
2018.08 - 2024.05
Industrial Radiographer
Fox NDE
2018.01 - 2019.08
Substitute Teacher K-12
Los Fresnos CISD
2017.01 - 2017.12
Associate of Science - Engineering Design Drafting
San Jacinto Community College