Arturo Rojas

Alkoxylation Process Technician

• Established detailed commissioning and operating procedures, following the MOC process where necessary.
• Commissioned unit equipment (washing/purging) to ensure operational readiness.
• Worked alongside engineers and technical staff to address concerns.
• Reviewed P&ID's, ISO drawings, and specifications for new construction projects.
• Issue construction activity permits to contractors.
• Traveled to and from sister sites for training.
• Assisted with upgrades of electrical transformers, MCCs, and breakers.
• Simulate batch operations/unit startup via ABB automation system.

Biotreatment

• Sampled and tested wastewater, applied chemical dosing, received chemical shipments, and performed wastewater plant preventive maintenance and minor corrective maintenance.
• Monitored overall unit performance to maintain operational efficiency
• Cleaned wastewater collection, treatment, and reclamation-related equipment and facilities, and performed periodic building maintenance.
• Managed dewatering building operations and coordinated with CDC for biosolids disposal.
• Performed daily sampling, communicating with lab personnel and 3rd party contractors to maintain state and environmental compliance.

Outlying Area.

• Coordinated controls for seamless transition of clean water release
• Oversaw Nitrogen and Natural Gas supplies from vendors.
• Optimized different headers throughout the facility, including site-specific water infrastructures, including raw, fire, well, and sewage headers.
• Secured Class C Groundwater License
• Conduct compliance sampling daily according to state and EPA regulations.
• Facilitated the certification process for recruits.

Adiponitrile, Step 2.

• Achieved proficiency in ADN Step 2 process block for unit certification.
• Gained knowledge of reaction systems and tank farms
• Engaged in handling Nickel Catalyst/Promoter Solutions tasks
• Conducted regular facility inspections, utilizing SAP for work order identification
• Filled overtime requests, addressing shift gaps.

Boilers

• Secured unit certification for boilers at Invista.
• Shadowed experienced staff during daily operations to understand unit workflows.
• Conducted regular sampling to verify the quality of boiler feed water.
• Ensured safe unloading and proper storage of boiler fuel.
• Maintained necessary steam rates per Invista site requirements.
• Collaborated with team members to address technical specifics
• Performed maintenance, including minor repairs and preventative maintenance.

• Rejoined former company for a different site assignment in Formosa
• Supervised three apprentices, offering guidance on tasks
• Using blueprints, laid out scale drawings of pipe systems and supports.
• Reviewed blueprints and building codes to determine details and procedures for work.
• Filled pipes with water or air, observing pressure gauges and pipes to troubleshoot and locate leaks.
• Inspected worksites to determine presence of obstructions, unsafe conditions and crew errors.
• Executed comprehensive duties related to piping systems, covering fabrication through maintenance.

• Inspected boilers, pressure vessels, tanks, and vats for leaks
• Implemented preventive maintenance practices and upheld equipment guidelines to avoid failures.
• Ordered parts, supplies or equipment from catalogs or suppliers.
• Cleaned or lubricated shafts, bearings or other parts of machinery.
• Gained expertise in Polypropylene Pellet production process
• Supported millwrights in equipment installation in reaction and extrusion areas
• Operated as a pipefitter, reconstructing faulty spool pieces and headers
• Executed role of PIC during turnarounds at PP2

• Read and interpreted specifications, diagrams and blueprints for job.
• Handled all responsibilities for piping systems, including fabricating, assembling, installing and maintaining.
• Measured and marked pipes for cutting and threading.
• Fabricated and positioned screw pipe, socket weld pipe and stainless steel tubing.

• Led a team as foreman with four crew members
• Constructed tank battery systems supporting oil drilling operations
• Set up storage tanks, separators, heaters, and materials
• Facilitated well kickoff and operational phases when required.
• Dismantled equipment to clean or performed regular maintenance.
• Transported equipment from one job site to another.
• Demonstrated leadership by making improvements to work processes and helping to train others.
• Prioritized and organized tasks to efficiently accomplish service goals.
• Oversaw multiple locations and crews