Instrumentation & Controls Engineer – OEM Equipment

Leoforce; Vallejo (CA); On-site; USD 125,000 - 135,000; Full time

Job summary

Leoforce in Vallejo, CA seeks an experienced Senior Controls Engineer to design instrumentation and control systems for custom equipment and to program PLC/HMI systems across platforms including Allen-Bradley, Siemens, GE, and Modicon.

You will review P&IDs, select components, and collaborate with panel shops through fabrication, testing, and as‑built documentation, while supporting commissioning and field troubleshooting.

Qualifications

• Bachelor’s degree in Electrical Engineering or related field.
• 10+ years of controls engineering experience in OEM or industrial environments.
• Strong PLC programming experience with Rockwell, Siemens, GE or Modicon.
• Experience designing control panels, schematics, and instrumentation systems.
• Solid knowledge of P&IDs, process controls, VFDs, and NFPA/NEC standards.
• Willingness to support commissioning and field troubleshooting.

Responsibilities

• Design instrumentation and control systems for custom equipment, including panels and schematics.
• Develop and modify PLC and HMI programs across major platforms.
• Review P&IDs and select instrumentation and system components.
• Collaborate with panel shops from design through fabrication and testing.
• Support testing, commissioning, and field troubleshooting of control systems.
• Interface with customers to resolve issues and implement changes.
• Identify opportunities to improve system performance, reliability, and cost.

Skills

Senior level

Control systems design

Field troubleshooting

Education

Bachelor’s degree in Electrical Engineering

Tools

Allen-Bradley/Rockwell PLC

Siemens PLC

GE PLC

Modicon PLC

Job description

Location: Vallejo,CA, US

Date Posted: 10-21-2026

Job Description

Experience: Senior Level

Salary: $125,000 - $135,000 per year

Job Details

What You’ll Do

• Design instrumentation and control systems for custom-engineered industrial equipment, including control panels, electrical schematics, I/O lists, and system documentation
• Develop and modify PLC and HMI programs using platforms such as Allen-Bradley/Rockwell, Siemens, GE, and Modicon
• Review P&IDs and control narratives and select instrumentation, VFDs, pumps, fans, control valves, and other system components
• Work with panel fabricators from initial design through drawing review, fabrication, testing, and final as-built documentation
• Support equipment testing, commissioning, and field troubleshooting, including wiring, PLC/HMI, instrumentation, and control system issues
• Partner with Project Engineering, Sales, Operations, and Field Service throughout the project lifecycle
• Interface directly with customers to resolve technical issues and make controls modifications when required
• Identify opportunities to improve system performance, reliability, and cost

What We’re Looking For

• Bachelor’s degree in Electrical Engineering, Electrical & Computer Engineering, or related field
• 10+ years of controls engineering experience within OEM, custom-engineered equipment, or industrial process environments
• Strong PLC programming experience with Allen-Bradley/Rockwell, Siemens, GE, and/or Modicon
• Experience designing industrial control panels, electrical schematics, and instrumentation/control systems
• Strong understanding of P&IDs, process controls, VFDs, instrumentation, and industrial electrical systems
• Working knowledge of NEC, NFPA, and other applicable industrial electrical standards
• Ability to support equipment commissioning and troubleshoot electrical and controls issues in the field

Preferred Experience

• Burner management, combustion controls, or burner safety systems
• Knowledge of NFPA 86, including burner safeties and interlocks
• Honeywell 7800 / Siemens LMV5
• UL 508A experience; MTR qualification is a plus
• Safety PLC and/or HMI programming experience
• AutoCAD Electrical and/or EPLAN experience

A bit about us

We are part of a global environmental solutions organization that designs and delivers highly engineered systems for demanding industrial applications. Our technologies help manufacturers and industrial operators control emissions, improve process performance, meet regulatory requirements, and operate more safely and efficiently.

Our projects combine mechanical equipment, instrumentation, electrical controls, automation, and process engineering to solve complex, real-world challenges for customers across a variety of industrial markets.

Why join us

In additional to a competitive salary, great benefits, 401k + match...

This is an opportunity for an experienced controls engineer who wants to do more than sit behind a desk designing panels. You’ll have ownership throughout the project lifecycle — from equipment selection and controls design through programming, fabrication, commissioning, troubleshooting, and customer support.

You’ll join a collaborative engineering environment where you can:

• Design controls and instrumentation for custom-engineered industrial systems
• Work directly with Project Engineering, Sales, Operations, panel shops, field service teams, and customers
• Own PLC/control solutions from initial concept through commissioning
• Work with a variety of PLC, HMI, instrumentation, VFD, burner management, and process control technologies
• Solve challenging field and application problems rather than repeatedly designing the same system
• Identify design improvements and cost-saving opportunities that directly impact the business

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