CESAR A. ARROYO RIVERA
Machinist
Dallas
Summary
Experienced CNC Machinist seeking a challenging opportunity at Collins Aerospace to leverage 7+ years of experience in CNC and manual machining, programming, and precision part manufacturing in aerospace and high-mix/low-volume environments.
Overview
8
8
years of professional experience
4
4
years of post-secondary education
Work History
CNC Machinist/ Programmer
Standard Aero
09.2023 - Current
- Setup and run high-precision CNC Haas mill parts for aircraft engines.
- Machine overhaul parts to meet critical tolerances and regulatory standards.
- Collaborate with engineering to create programs and solve manufacturing issues.
- Fabricate custom fixtures and tools for in-house applications.
- Interpret blueprints and GD&T to inspect and machine complex aerospace engine components.
- Operated in a fast paced aerospace environment while maintaining precision and meeting tight deadlines.
CNC Machinist/ Programmer
LX3 Corporation
05.2019 - 09.2023
- Created CNC programs using Surfcam and designed parts/fixtures in SolidWorks.
- Operated and set up Milltronics CNC mills and Hyundai Wia lathes (Fanuc).
- Led training for new employees in manual and CNC machines and quality control.
- Conducted R&D on tooling and materials for improved machinability.
- Interpreted detailed engineering blueprints and applied GD&T standards to ensure part accuracy and meet tight tolerances.
- Delivered precision parts in a fast paced, high-mix/low-volume production setting, adapting quickly to changing priorities and setups.
- Calculated dimensions and tolerances using part drawings, geometry, and trigonometry to ensure components met precise aerospace specifications.
CNC Machinist
Boyd Machine Services Inc.
11.2018 - 05.2019
- Programmed in Gibscam and performed edits and setups on CNC mills.
- Reviewed prints with engineers to refine processes and improve production efficiency.
- Verified program functionality and inspected first parts to ensure dimensional accuracy.
- Produced components for oilfield industry clients, ensuring adherence to tight tolerances.
- Applied advanced math (geometry, trigonometry) to calculate part features and confirm tolerance compliance during setups and inspections.
CNC Machinist/ Solidworks drafter
Larson Electronics
11.2017 - 11.2018
- Created models and mechanical drawings in SolidWorks.
- Operated CNC, manual machines, laser cutter, water jet, and welding tools.
CNC Machinist
Global-Tek Manufacturing
01.2017 - 09.2017
- Set up and operated CNC machines for production and prototype work.
- Uploaded CNC programs, set up tooling, and ensured safe and accurate dry runs.
- Conducted first-part inspections and monitored part quality throughout runs.
- Maintained strict adherence to tolerances and process documentation for precision parts.
Education
Associate Degree - Tool and Die Maker
Bayamón Die Maker and Tooling School
Bayamón, PR 01.2013 - 01.2016
Team Project - Aerospace Prototype Design & Manufacturing
Rock Sat X (UPR - Rio Piedras)
Rio Piedras, PR 01.2015 - 01.2016
Skills
- CNC Programming (Surfcam, Gibscam)
- CAD/CAM: SolidWorks
- Blueprint and GD&T Interpretation
- Bilingual: English & Spanish
- Detail-oriented
- Manual Machining & Welding (MIG, TIG, Electrode, Micro)
Timeline
CNC Machinist/ Programmer
Standard Aero
09.2023 - Current
CNC Machinist/ Programmer
LX3 Corporation
05.2019 - 09.2023
CNC Machinist
Boyd Machine Services Inc.
11.2018 - 05.2019
CNC Machinist/ Solidworks drafter
Larson Electronics
11.2017 - 11.2018
CNC Machinist
Global-Tek Manufacturing
01.2017 - 09.2017
Team Project - Aerospace Prototype Design & Manufacturing
Rock Sat X (UPR - Rio Piedras)
01.2015 - 01.2016
Associate Degree - Tool and Die Maker
Bayamón Die Maker and Tooling School
01.2013 - 01.2016
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