Controls Engineer

Pure Aqua, Inc.; Santa Ana (CA); On-site; USD 75,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

PTO & paid holidays

Career growth opportunities

Hands-on, engineering-focused work environment

401(k) matching

Health insurance

Vision insurance

Job summary

A global water treatment manufacturing company is seeking an experienced Controls Engineer in Santa Ana, CA. The ideal candidate will program and troubleshoot PLC & HMI systems for various water treatment solutions. Responsibilities include developing automation sequences and supporting control panel design. A Bachelor's degree in Electrical Engineering or similar and 3+ years of relevant experience are required. This full-time role offers competitive compensation ranging from $75,000 to $110,000 per year, along with benefits such as health insurance and career growth opportunities.

Qualifications

• 3+ years of experience in PLC programming, preferably in water treatment or industrial automation.
• Ability to read P&IDs, electrical schematics, and panel drawings.
• Willingness to travel (10–20%) for commissioning and customer support.

Responsibilities

• Program, test, and troubleshoot PLC & HMI systems for water treatment equipment.
• Develop and configure control logic and automation sequences.
• Support control panel design and engineering documentation.

Skills

PLC programming

HMI systems

Allen-Bradley

Control logic development

Industrial networking

Education

Bachelor’s degree in Electrical Engineering, Automation, or Mechatronics

Tools

Allen-Bradley Studio 5000

FactoryTalk View

Job description

Overview

Pure Aqua, Inc. is a global manufacturer of reverse osmosis and water treatment systems serving industrial, commercial, and municipal clients worldwide. We are seeking an experienced Controls Engineer to join our engineering team and support automation for RO systems, filtration plants, containerized systems, and custom water treatment solutions.

Responsibilities

• Program, test, and troubleshoot PLC & HMI systems for Pure Aqua equipment (RO, UF/MF, filtration, chemical dosing).
• Develop control logic, interlocks, alarms, and automation sequences based on P&IDs.
• Program using Allen-Bradley Studio 5000; experience with Siemens or Schneider is a plus.
• Configure industrial networks (EtherNet/IP, Modbus, Profinet).
• Support control panel design, IO lists, and engineering documentation.
• Perform Factory Acceptance Testing (FAT) and onsite commissioning.
• Provide technical support to production, service teams, and customers as needed.
• Maintain and update Pure Aqua’s standard PLC code structure and templates.

Qualifications

• Bachelor’s degree in Electrical Engineering, Automation, Mechatronics, or equivalent work experience.
• 3+ years of PLC programming experience (preferably in water treatment or industrial automation).
• Strong experience with Allen-Bradley PLCs and FactoryTalk View or similar HMI platforms.
• Understanding of pumps, VFDs, sensors, instrumentation, and process control.
• Ability to read P&IDs, electrical schematics, and panel drawings.
• Willingness to travel (10–20%) for commissioning and customer support.

Preferred Experience

• Reverse osmosis, ultrafiltration, softeners, or containerized treatment plants.
• Experience writing FAT/SAT documents and start-up procedures.
• Familiarity with UL 508A, NFPA 79, and control panel standards.
• SCADA or data-logging experience (Ignition, Wonderware, WinCC).

What We Offer

• Competitive salary (DOE)
• PTO & paid holidays
• Career growth within a stable, global water treatment company
• Hands‑on, engineering‑focused work environment

Job Type: Full‑time

Pay: $75,000.00 – $110,000.00 per year

• 401(k)
• 401(k) matching
• Health insurance
• Paid time off
• Vision insurance

Education: Bachelor’s (Required)

Location: Santa Ana, CA 92704 (Required)