Jason Choi
Queen Creek
Summary
Skilled professional ready to excel in a leadership role with a focus on results-driven performance. Proven ability to streamline operations and foster team collaboration to achieve organizational goals. Known for reliability and adaptability in meeting changing demands, while maintaining high standards.
Overview
11
11
years of professional experience
8
8
Certifications
Work History
AIR SEPARATION UNIT OPERATION TECHNICIAN
AirProducts and Chemicals
07.2025 - Current
- Operated and monitored chemical processing equipment to ensure optimal performance and adherence to safety standards.
- Conducted routine inspections and maintenance on production machinery to minimize downtime and enhance reliability.
- Maintained comprehensive documentation of all machine activities, ensuring traceability of performance data for future analysis.
- Managed inventory levels effectively, preventing shortages while minimizing excess stock that could lead to obsolescence or increased storage costs.
- Responded to alarms, leaks, and equipment malfunctions with urgency and precision.
- Executed water chemistry analyses to maintain optimal operational conditions.
- Handled extremely cold cryogenic liquids and high-pressure gases following safety protocols.
- Adhered to lockout/tagout, confined space, and emergency protocols to ensure workplace safety.
- Ensured that oxygen, nitrogen, and argon products met required purity specifications.
- Controlled compressors, heat exchangers, and distillation columns to maintain operational efficiency.
- Started up, shut down, and adjusted 8 active plants using control panels (DCS) to meet production demands.
- Collaborated with team members to troubleshoot operational issues, ensuring minimal downtime and sustained productivity.
LEAD OPERATOR LIQUID HYDROGEN
AirProducts and Chemicals
12.2024 - 07.2025
- Oversaw daily operations to ensure strict compliance with safety and quality standards.
- Trained and mentored junior operators on equipment usage and established safety protocols.
- Implemented process improvements that significantly enhanced operational efficiency and minimized downtime.
- Analyzed production metrics to identify trends and recommend corrective actions.
- Led team meetings to discuss performance, address challenges, and strategize solutions.
- Coordinated maintenance schedules to reduce disruptions in production workflow.
- Fostered a positive work environment by promoting open communication among team members to address concerns or suggestions for improvement.
- Improved production efficiency by streamlining processes and optimizing equipment usage.
- Adapted to working outdoors in various weather conditions to ensure operational continuity.
- Ensured product timeliness and quality through rigorous monitoring.
- Conducted product functionality and quality testing while troubleshooting equipment and device issues.
- Enhanced team performance through ongoing training sessions and coaching on best practices.
- Assigned tasks to team members based on individual strengths and experience, achieving productivity and workflow improvements.
Shift Lead HyCO OPERATION TECHNICIAN
AirProducts and Chemicals
07.2020 - 11.2024
- Provided training and guidance to new team members on operational procedures to promote knowledge retention.
- Collaborated with the engineering team to devise innovative solutions that improved operational efficiency.
- Prepared comprehensive reports detailing operational performance metrics and trends for management review.
- Evaluated existing processes and procedures to identify potential areas for improvement and optimization.
- Displayed strong telephone etiquette while effectively managing challenging calls.
- Issued permits such as hot work and group lockouts to ensure compliance with safety standards.
- Possessed extensive experience in hydrogen gas-based plants, including MDEA, caustic, steam, C02, BFW, demineralized water, cooling water, feed gas, natural gas, PSA, SMR, steam-driven pumps, and electrical pumps.
- Completed over seven major turnarounds in Torrance and other locations, including Martinez PBF.
- Executed and managed plant startups, shutdowns, and outages with precision.
- Directed field operators, maintenance, instrumentation and electrical personnel, and plant staff regarding their daily expectations and duties.
- Operated DCS software systems, responding to critical alarms, emission events, and equipment failures promptly.
- Served as a Level 1 senior operator, supervising Level 2 and Level 3 operators for over four years, ensuring adherence to protocols and safety standards.
- Accountable for ensuring safe protocols and processing to produce hydrogen products in Unit 4 (40 MMSCFD) and Unit 24 (88 MMSCFD).
- Underwent training as a Confined Space Supervisor.
- Currently serving as the Respiratory Program Coordinator.
- Executed major evolutions involving the Torrance PBF Refinery, maintaining constant communication and establishing productive relationships.
- Resolved network alarms, identified critical conditions, and notified professionals of potential risks.
- Maintained accurate records of daily activities, machine statuses, and material usage.
- Diagnosed mechanical issues and executed necessary repairs to maintain continuous operations.
Machinist Mate Auxiliary Submarines
US NAVY
Bremerton
07.2015 - 07.2020
- Collaborated with team members to troubleshoot mechanical issues and implement solutions.
- Conducted routine inspections to ensure compliance with safety standards and protocols.
- Assisted in training junior personnel on proper machining procedures and safety practices.
- Performed maintenance on oxygen generators, ship's diesel, refrigeration [HVAC], potable water/plumbing, high/low pressure air compressors, gauge calibrations, ventilation/atmospheric control, and control equipment with strict procedural compliance using technical manuals.
- As a quality assurance inspector/planner, I have conducted or worked on over 30 SUBSAFE/Level 1 packages in accordance with the Navy's JFMM for ship's readiness.
- Maintained machinery spaces on a regular basis, able to respond to casualties and stressful situations, working
with others in combat-ready situations to restore to normal operations. - Managed quality control and maintained a high level of customer satisfaction.
- Troubleshot and repaired machines to increase productivity and decrease spending.
- Calibrated machinery to optimize performance according to prescribed standards and specific project needs.
- Trained and mentored junior sailors in operational procedures and best practices.
- Coordinated with other divisions, combining group efforts to achieve goals.
- Designated as Diesel Program Manager and maintained ship's emergency back up power.
Education
Machinist Mate Auxiliary Submarines
US NAVY
Bremerton, WA07-2020
High School Diploma -
North High School
Torrance, CA07-2010
Skills
- Teamwork and collaboration
- Attention to detail
- Problem-solving
- Team motivation
- Safety compliance
- Team leadership
Languages
- English
- Korean
Certification
SSGI Yellow Belt
Timeline
AIR SEPARATION UNIT OPERATION TECHNICIAN
AirProducts and Chemicals
07.2025 - Current
LEAD OPERATOR LIQUID HYDROGEN
AirProducts and Chemicals
12.2024 - 07.2025
Shift Lead HyCO OPERATION TECHNICIAN
AirProducts and Chemicals
07.2020 - 11.2024
Machinist Mate Auxiliary Submarines
US NAVY
07.2015 - 07.2020
Machinist Mate Auxiliary Submarines
US NAVY
High School Diploma -
North High School