HVAC Electrical Programmer Engineer

Marvair•Houston, TX

1d•Hybrid

About The Position

Custom Air Products & Services, Inc. (CAPS) is a Houston-based, full-service HVAC company specializing in the design, fabrication, installation, and servicing of industrial and commercial air conditioning and heating systems. Since 1996, CAPS has built a reputation for delivering high-quality, custom-engineered solutions to customers across a wide range of industries. With a team of skilled professionals and multiple Texas-based facilities, CAPS provides end-to-end capabilities including HVAC manufacturing, mechanical field services, and parts distribution. As part of AirX Climate Solutions, we are committed to safety, quality, and customer satisfaction—creating a team-oriented environment where employees can grow, contribute, and support essential operations across the industries we serve. We are currently seeking a Programmer Engineer to add to our growing team.

Requirements

Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or related field (or equivalent experience)
Minimum 8–10 years of experience in HVAC, manufacturing, or industrial controls environment
Strong PLC programming experience required (Siemens and/or Allen-Bradley preferred)
Experience with HVAC controls, sequences of operation, and system integration
Proficiency in AutoCAD Electrical
Strong understanding of electrical power and control circuits (AC/DC)
Knowledge of HVAC systems and components (fans, compressors, coils, heaters, controls)
Familiarity with ASHRAE guidelines and NEC requirements
Experience with hazardous location requirements; IEC/ATEX knowledge preferred
Ability to read and interpret customer drawings, specifications, and system schematics
Strong troubleshooting and problem-solving skills
Ability to manage multiple projects and meet deadlines
Effective communication and collaboration skills

Responsibilities

Develop, program, and test PLC-based control systems for custom HVAC equipment design
Create PLC programs from initial concept through final commissioning
Support Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT), including system start-up and troubleshooting
Debug, troubleshoot, and modify PLC programs for existing systems
Design and document HVAC sequences of operation
Develop electrical wiring diagrams, control schematics, and panel layouts using AutoCAD Electrical
Perform electrical calculations, including MCA and MOCP, SCCR and wire sizes
Select control components and define electrical interconnections
Prepare and maintain Bills of Materials (BOMs) for controls and electrical systems
Review and incorporate redlines and as-built documentation
Collaborate with engineering, fabrication, and field personnel to resolve technical issues
Communicate control system functionality and design intent to internal stakeholders and installation teams
Maintain organized electronic files for programs, drawings, and project documentation