Juan Castillejo
Reseda,CA
Summary
Dependable Lathe/Setup Operator, knowledgeable about inputting commands, setting tolerances and maintaining equipment. Dedicated to craft and always looking for opportunities to produce better components and reduce breakdowns or other problems impacting production results. Skilled in tooling changeover, equipment set up and sequence planning.
Overview
9
9
years of professional experience
Work History
CNC Machinist
Kitch Engineering
11.2023 - Current
- Enhanced product quality by performing precision CNC lathe machining and ensuring adherence to strict tolerances.
- Studied daily work instruction, sketches, drawings, blueprints, and manuals to determine dimensions and tolerances accurately.
- Adhered to high level of safety by following company rules and regulations to prevent injuries.
- Studied changing production and daily work orders to adjust offsets correctly.
- Inspected finished parts by checking for defects to meet quality standards.
- Performed daily cleaning to keep machines in good working condition and prolong equipment lifespan.
- Kept accurate operating records by documenting machine usage, production numbers and any issues that arose.
- Maintained tight tolerances of +/- .00025 and staying within +/- .0001 with design specifications.
- Replaced dull or inefficient equipment parts to enhance machinery performance and improve production yields.
- Properly changed tools, inserts and geometry offsets without supervision.
- Loaded and unloaded parts to maintain high level of production.
- Detected malfunctions and control errors by monitoring machine operation and checking completed pieces.
- Measured completed pieces to identify non-conformance and/or irregularites.
CNC Lathe Operator
O&S Precision Inc.
07.2022 - 11.2023
- Worked with supervisors to troubleshoot and resolve encountered equipment or material issues and maintain optimal production levels.
- Checked orders to define necessary attachments and equipment needed for each job, set up machines and calibrate settings.
- Completed tasks according to production sheets specifications and quality standards to meet or exceed tight tolerances and avoid wasting materials.
- Replaced dull or inefficient equipment parts to enhance machinery performance and improve production yields.
- Operated Nakamura-Tome and Hwacheon equipment by closely monitoring production progress and readjusting setup to produce high-quality work.
- Loaded and unloaded parts to maintain high level of production.
- Maintained high tolerances of +/- .00025 and staying within +/-.0001 with design specifications.
- Detected malfunctions and control errors by monitoring machine operation and checking completed pieces.
- Adhered to safety procedures and regulations during CNC lathe operations.
- Reviewed and interpreted schematics, blueprints, and work instructions to determine product specifications and machine requirements.
- Measured completed pieces to identify product irregularities and specifications non-conformance; adjusting machines to correct issues.
- Operated CNC machines to produce components with tight tolerances.
- Ran multiple CNC machines simultaneously to increase production capacity.
- Instructed new employees on operation of CNC machines.
- Input instructions for machine operations based on specifics of work orders.
CNC Machinist
ABACORP CNC Machined Parts
12.2020 - 07.2022
- Worked with supervisors to troubleshoot and resolve encountered equipment or material issues and maintain optimal production levels.
- Completed tasks according to production sheets specifications and quality standards to meet or exceed tight tolerances and avoid wasting materials.
- Replaced dull or inefficient equipment parts to enhance machinery performance and improve production yields.
- Adjusted machine controls and changed tool settings to keep dimensions within specified tolerances.
- Operated HAAS and Doosan lathes and mills by closely monitoring production progress and readjusting setup to produce high quality work.
- Maintained tight tolerances of +/- .0005 and staying within .0000 to .0005 with design specifications.
- Adhered to high level of safety by following company rules and regulations to prevent injuries.
- Measured completed pieces to identify product irregularities and specifications non-conformance; adjusting machines to correct issues.
- Properly loaded and unloaded materials in and out of machines.
- Worked with various materials such as aluminum, steel, brass and plastic.
- Maintained clean, neat and well-organized work area and disposed of trash in proper receptacles to promote productivity, safety and efficiency.
CNC Lathe Operator
O&S Precision Inc.
08.2018 - 06.2020
- Replaced dull or inefficient equipment parts to enhance machinery performance and improve production yields.
- Operated Nakamura-Tome and Hwacheon lathes by closely monitoring production progress and readjusting setup to produce high-quality work.
- Loaded and unloaded parts to maintain high level of production.
- Maintained tight tolerances of +/- .0005 and staying within .0000 to .0005 with design specifications.
- Adhered to high level of safety by following company rules and regulations to prevent injuries.
- Measured completed pieces to identify product irregularities and specifications non-conformance; adjusting offsets and changing tools/inserts to correct issues.
- Maintained quality assurance and customer satisfaction objectives.
- Properly loaded and unloaded materials in and out of machines.
- Worked with various materials such as aluminum, steel, nickel alloys and titanium.
- Kept work areas clean and neat.
Machine Operator
Halliburton
06.2018 - 07.2018
- Responsible for the selection and maintenance of equipment.
- Fabricated large and small parts per drawing and assembled parts as required.
- Performed preventative maintenance to maintain optimal productivity.
- Kept work areas clean and neat.
- Read and followed standard operating procedures.
- Made sure that products were produced on time and of good quality.
CNC Mill Operator
Airbolt Industries
06.2016 - 03.2018
- Worked directly from blueprints, patterns, sketches and specifications.
- Measured completed pieces to identify product irregularities and specifications non-conformance; adjusting machines to correct issues.
- Maintained tight tolerances with design specifications.
- Operated and maintained up to 2 different mill and lathe machines to fabricate aluminum, steel, and inconel products.
- Adhered to all safety protocols and safe work practices to reduce likelihood of injury.
- Used CNC mills and lathes to perform rough and finishing machining.
- Removed burrs on all machined parts.
- Lubricated parts and performed minor maintenance to improve machine function.
- Maintained necessary level of communication between shift change.
Education
Manufacturing Certificate -
Los Angeles Valley College
Valley Glen, CA05.2016
Some College (No Degree) - General Education
Los Angeles Pierce College
Woodland Hills, CASome College (No Degree) - General Education
Los Angeles Valley College
Valley Glen, CAHigh School Diploma -
Reseda Senior High School
Reseda, CA06.2000
Skills
- Basic GD&T knowledge
- Groove polishing
- CNC milling
- CNC turning
- Documentation
- Blueprint Interpretation
- Exceptional organizational skills
- Interpersonal skills
- Machine setup and calibration
- HAAS and FANUC controls
- Understanding G- and M- codes
- Understanding numerical controls
- Basic math skills
- Caliper, micrometer, height gauge, bore gauges and optical comparator use
Accomplishments and Awards
- Successfully completed 6 weeks of training at the Manufacturing Academy at Los Angeles Valley College in 2016.
- Awarded the Army Commendation Medal (ARCOM) in 2001 and 2004 (2 awards) and the Good Conduct Medal (GCM) in 2004.
- Received Global War on Terrorism Service Medal and Expeditionary Medal.
- Personally responsible for over $250k of command equipment with no deficiencies, losses or damages.
- Maintained 100% accountability of a large section of equipment worth over $20M during deployment in Iraq.
Timeline
CNC Machinist
Kitch Engineering
11.2023 - Current
CNC Lathe Operator
O&S Precision Inc.
07.2022 - 11.2023
CNC Machinist
ABACORP CNC Machined Parts
12.2020 - 07.2022
CNC Lathe Operator
O&S Precision Inc.
08.2018 - 06.2020
Machine Operator
Halliburton
06.2018 - 07.2018
CNC Mill Operator
Airbolt Industries
06.2016 - 03.2018
Manufacturing Certificate -
Los Angeles Valley College
Some College (No Degree) - General Education
Los Angeles Pierce College
Some College (No Degree) - General Education
Los Angeles Valley College
High School Diploma -
Reseda Senior High School
Similar Profiles
Basma SyukurBasma Syukur
Junior Chef at Indi-KitchJunior Chef at Indi-Kitch
Santosh KarkiSantosh Karki
CHEF at Lil KitchCHEF at Lil Kitch
Riley PedersonRiley Pederson
Apprentice Cabinet Maker at KitchApprentice Cabinet Maker at Kitch
Charles MandlerCharles Mandler
Senior Project Manager at EH Butland CorpSenior Project Manager at EH Butland Corp
Jorge SorianoJorge Soriano
IT Support Analyst at PG&E / Management Consulting GroupIT Support Analyst at PG&E / Management Consulting Group