Jacob Tijerina

• Performed loop checks and point-to-point verification to ensure proper signal communication between field instruments and control systems.
• Conducted vibration testing and inspection on rotating equipment to verify performance and identify potential issues.
• Installed and terminated instrumentation wiring in DCS cabinets.
• Installed and fabricated snap track and lighting during downtime for instrument loop checks.
• Worked with Honeywell pressure and temperature transmitters, assisting with installation, calibration, and verification.
• Collaborated with subcontractor companies to tackle outstanding work packets and troubleshoot instrument communication issues

Project Assignments: Chevron Phillips Chemical (Orange, TX) | Dow Chemical Company (Texas City, TX) | Clean Harbors (Deer Park, TX) | Stepan Company (La Porte, TX)

• Supported construction, expansion, and turnaround projects by installing, calibrating, commissioning, and troubleshooting instrumentation systems to ensure operational readiness.
• Executed loop checks and point-to-point verification between field devices, RIO cabinets, and control systems, ensuring proper integration with DCS and PLC systems.
• Installed, terminated, and calibrated pressure, temperature, level, and flow instruments, including control valves (XV/FV).
• Performed terminations in junction boxes, MCCs, substations, and field-mounted devices.
• Fabricated and installed stainless steel and poly tubing for process and instrument air systems.
• Conducted startup, commissioning, and SIS loop checks, collaborating with operations and control room personnel to verify system functionality and safety.
• Utilized HART 475, Emerson Trex, Fluke 789, and Fluke 725 for calibration and communication.
• Read and interpreted P&IDs, loop drawings, and electrical schematics to execute and verify installations.
• Assisted engineers in updating redline and as-built documentation, ensuring accuracy for future reference and compliance.

• Assembled gas, liquid, and slurry sampling systems, including analyzer panels and large process modules.
• Performed instrument fitting using ¼”–1” stainless steel tubing in accordance with P&IDs, isometric drawings, and engineering specifications.
• Completed in-shop wiring and assembly of electrical and control panels based on engineered drawings.
• Calibrated pressure, temperature, and flow transmitters to ensure accuracy and reliability prior to field deployment.
• Conducted troubleshooting, pneumatic, and hydrostatic testing to verify system integrity and performance.
• Collaborated with engineers in the design and layout of skids, modules, and panels using AutoCAD.
• Contributed to production efficiency improvements as part of a 3-person team, increasing department revenue from $887K (FY2024) to $1.5M (YTD May 2025).
• Eliminated production delays, advancing schedule from three weeks behind to two weeks ahead, ensuring on-time delivery for major clients including Texas A&M Pump, Dow Inc., Phillips 66, Chevron Corporation, ExxonMobil, and Valero Energy.

• Installed solar panel systems, including mounting panels, running wiring, and assisting with inverter connections.
• Supported electricians in residential and commercial wiring, conduit installation, and panel work to ensure compliance with electrical codes
• Installed outlets, switches, lighting fixtures, and GFCI/AFCI circuits.
• Aided in HVAC unit installations by setting condensers, air handlers, and completing electrical terminations for optimal system performance
• Read blueprints and followed electrical schematics to support accurate installations
• Acquired practical skills in operating tools and equipment for electrical, solar, and HVAC projects
• Worked only weekends once I started with the Sentry Equipment