Summary
Overview
Work History
Education
Skills
Languages
Timeline
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Alan Urista

Pasadena,TX

Summary

Skilled Maintenance Instrumentation Technician with experience in industrial maintenance and troubleshooting. Strong background in calibration, loop checks, preventive maintenance (PMs), documentation, and safety compliance. Committed to quality work, accuracy, and continuous learning.

Instrumentation professional with extensive experience in maintaining and repairing complex instrumentation systems. Known for strong focus on team collaboration and achieving reliable results. Adaptable to changing needs and skilled in system diagnostics and maintenance.

Overview

2026
2026
years of professional experience

Work History

Maintenance Instrumentation Technician

Evonik
06.2023 - Current
  • Experience in Pharmaceutical/Chemical Industry (Evonik, Indiana)
  • Instrumentation & electrical maintenance in pharma/chemical plant environments
  • PMs and calibrations on pressure, temp, flow, level, pH, ORP, O₂, LEL gas analyzers (E&H/MSA, Rosemount, Vega, Mettler-Toledo)
  • Calibrate per CDI standards and maintain accurate as-found/as-left documentation
  • Proficient with Emerson 475/Trex, Fluke 789/707, pressure calibrators (4–20mA, HART, smart diagnostics)
  • Control valve tuning, actuator, positioner, solenoid troubleshooting (Fisher, Worcester)
  • Read and interpret P&IDs, loop diagrams, schematics, and digital drawings
  • Wire and terminate limit switches and instrumentation
  • Use SAP for work orders, maintenance logs, and parts ordering
  • Support commissioning, loop checks, and new system startups
  • On-call for plant-wide I&E troubleshooting and emergencies
  • Knowledge of ISA standards, LOTO, hazardous areas (Class I Div I/II), and safety procedures
  • Experience with DeltaV DCS – I/O checks, loop tuning, and basic troubleshooting

Instrumentation Junior Technician

Bilfinger Westcon @ Evonik
10.2022 - 05.2023
  • Assisted with calibration, loop checks, and device troubleshooting
  • Interpreted P&IDs, electrical drawings, and supported field wiring/termination
  • Contributed to commissioning/testing of new instrumentation

Industrial Electrician Helper

Straight Line Industrial Services
06.2022 - 10.2022
  • Installed instruments, ran conduit, pulled/terminated wire, and installed RTDs
  • Performed loop checks and assisted with QA and documentation

Warehouse & Management Roles

Various employers
- 01.2022
  • Roles included forklift operator, area manager, overnight stocker, and order filler
  • Gained leadership, logistics, and team management experience

Education

Instrumentation Technician -

Process Analytical And Control Trade School
Baytown, TX
10.2022

Skills

  • Instrument Calibration – Pressure, Temperature, Flow, Level, pH, ORP, O2, LEL (MSA, Rosemount, Vega, Mettler-Toledo)
  • Tools Used – Emerson Trex, Fluke 789/707, Pressure Calibrators
  • Schematics & Drawings – P&IDs, Loop Diagrams, Electrical Schematics
  • SAP – Work Orders, Maintenance Notes, Material Ordering
  • Valve Work – Control Valve Stroking, Positioner Tuning (Fisher, Worcester)
  • Wiring – Limit Switches, Instrumentation
  • Documentation – CDI Paperwork, As-Found/As-Left, Redlining
  • Systems – HART, 4-20mA, DCS I/O Checkout
  • Compliance – LOTO, ISA Standards, Hazardous Areas (Class I Div I/II)
  • Field Instrumentation – Installation and troubleshooting
  • Gas Detection – Setup and maintenance of gas detection systems: MSA
  • Measurement Devices – Strong proficiency across brands and types
  • Process Control – Optimization and fine-tuning of control loops
  • Pneumatic Systems – Installation, calibration, and maintenance

Languages

Spanish
Native or Bilingual
English
Native or Bilingual

Timeline

Maintenance Instrumentation Technician

Evonik
06.2023 - Current

Instrumentation Junior Technician

Bilfinger Westcon @ Evonik
10.2022 - 05.2023

Industrial Electrician Helper

Straight Line Industrial Services
06.2022 - 10.2022

Warehouse & Management Roles

Various employers
- 01.2022

Instrumentation Technician -

Process Analytical And Control Trade School

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Alan Urista