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Internship Programmable Logic Controller Jobs in Seattle, WA

Amazon

SDE - CPLD / FPGA

Seattle, WA · On-site

$147K - $190K/yr

You will be an experienced Firmware/Software Development Engineer specialized in programmable logic ... BASIC QUALIFICATIONS - 3+ years of non-internship professional software development experience - 3+ ...

New

Amazon

SDE - CPLD / FPGA

Seattle, WA · On-site

$147K - $190K/yr

You will be an experienced Firmware/Software Development Engineer specialized in programmable logic ... BASIC QUALIFICATIONS - 3+ years of non-internship professional software development experience - 3+ ...

New

Amazon

Equipment Engineer, Amazon LEO

Redmond, WA · On-site

... with Programmable Logic Controller (PLC) & Data Acquisition (DAQ) Systems PREFERRED QUALIFICATIONS - Experience in the design of complex mechanical products and equipment at volume - Experience ...

Amazon

Equipment Engineer, Amazon LEO

Redmond, WA · On-site

... with Programmable Logic Controller (PLC) & Data Acquisition (DAQ) Systems PREFERRED QUALIFICATIONS - Experience in the design of complex mechanical products and equipment at volume - Experience ...

Amazon

Equipment Engineer, Amazon LEO

Redmond, WA · On-site

... with Programmable Logic Controller (PLC) & Data Acquisition (DAQ) Systems PREFERRED QUALIFICATIONS - Experience in the design of complex mechanical products and equipment at volume - Experience ...

Carbon Robotics

Sr. Electrical Engineer

Seattle, WA

$122K - $159K/yr

Integrate and program Programmable Logic Controllers (PLCs), automotive and industrial IO modules, and safety relays to automate and protect machine subsystems. * Select and qualify critical ...

ALTEN Technology USA

E&I Engineer

Bellevue, WA

$90K - $140K/yr

Experience with control systems, Programmable Logic Controllers, HMI and SCADA design and programming. * Basic technical knowledge in the field of industrial control systems. * Understanding of Low ...

CRH

Automation Engineer

Seattle, WA · On-site

$102K - $125K/yr

Manages Programmable Logic Controller systems and networks used in the plant operation. * Collaborates with staff on design, installation, revisions and maintenance of all plant electrical and ...

BAE Systems

SCA Elect Tech Maint II

Port Orchard, WA · On-site

$20K/yr

Scully, Varec, Fafnir, and Programmable Logic Controllers Experience with data communications via copper wires, fiber optics, & wireless devices CAC must be obtained within 30 days Certifications and ...

CRH

Automation Engineer

Seattle, WA

$102K - $125K/yr

Manages Programmable Logic Controller systems and networks used in the plant operation. * Collaborates with staff on design, installation, revisions and maintenance of all plant electrical and ...

Parametrix

SCADA Technician

Puyallup, WA · Hybrid

Expertise in SCADA systems and related technologies like Programmable Logic Controllers (PLCs), Human Machine Interfaces (HMIs), and telemetry. * 4+ years of experience in on-site troubleshooting and ...

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Internship Programmable Logic Controller information

See Seattle, WA salary details

$10

$19

$27

How much do internship programmable logic controller jobs pay per hour?

As of Aug 2, 2026, the average hourly pay for internship programmable logic controller in Seattle, WA is $19.69, according to ZipRecruiter salary data. Most workers in this role earn between $16.39 and $21.88 per hour, depending on experience, location, and employer.

What is the difference between Internship Programmable Logic Controller vs Electrical Engineering Intern?

AspectInternship Programmable Logic ControllerElectrical Engineering Intern
Required CredentialsBasic knowledge of PLC programming, technical courseworkMajor in electrical engineering or related field, coursework in circuits and systems
Work EnvironmentManufacturing plants, automation facilitiesDesign labs, engineering departments, industrial sites
Employer & Industry UsageAutomation companies, manufacturing firmsEngineering firms, utility companies, industrial sectors
Comparison Search IntentYesNo

The Internship Programmable Logic Controller focuses on hands-on experience with PLC programming and automation systems, often within manufacturing environments. In contrast, an Electrical Engineering Intern has a broader scope, involving circuit design, electrical systems, and general engineering principles. While both roles may overlap in industrial settings, PLC internships are more specialized in automation technology, making them a targeted choice for those interested in control systems.

What types of projects or tasks can an intern expect to work on during a Programmable Logic Controller (PLC) internship?

During a PLC internship, interns typically assist with designing, programming, and testing automation systems that use PLCs in industrial settings. You may be involved in writing and troubleshooting ladder logic, configuring hardware, and supporting senior engineers during equipment installation or upgrades. Interns often participate in hands-on tasks such as wiring control panels, running simulations, and documenting system changes. This role also offers opportunities to collaborate closely with engineers, electricians, and technicians, giving you practical exposure to real-world automation challenges.

What are the key skills and qualifications needed to thrive as an Internship Programmable Logic Controller (PLC) specialist, and why are they important?

To thrive as an intern specializing in Programmable Logic Controllers, you generally need a background in electrical engineering or automation, along with foundational knowledge of PLC programming concepts. Familiarity with industry-standard PLC platforms (such as Siemens or Allen-Bradley), ladder logic, and simulation software is typically expected. Attention to detail, problem-solving abilities, and a willingness to learn are crucial soft skills in this role. These competencies ensure you can effectively support automation projects, troubleshoot issues, and contribute to reliable industrial system operations.

What is an Internship in Programmable Logic Controller (PLC)?

An Internship in Programmable Logic Controller (PLC) is a temporary position designed for students or recent graduates to gain practical experience working with PLC systems used in industrial automation. Interns learn to program, troubleshoot, and maintain PLCs, often assisting in designing automation solutions for manufacturing or process industries. This hands-on experience helps them understand real-world applications of PLCs, work with industry-standard hardware and software, and develop valuable technical and problem-solving skills for a career in automation or controls engineering.
Internship Programmable Logic Controller jobs near you
Infographic showing various Internship Programmable Logic Controller job openings in Seattle, WA as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $40,963 per year, or $19.7 per hour.

Senior Control System Integration & Design Engineer

Brown and Caldwell

Seattle, WA • On-site

$190K - $196K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

Brown and Caldwell rating

9.4

Company rating: 9.4 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

15th of 439 rated engineering

Job description

Job Summary
The Senior Control System Integration and Design Engineer role requires problem-solving moderately complex issues for which solutions may not be well-defined. The role involves contributing significantly in SCADA/Human machine interface (HMI) design, configuration, and programming projects. This role will develop and implement Programmable Logic Controllers (PLC) system design and industrial control system (ICS)/operational technology (OT) design configuration, and programming projects. The role will work independently and exercise sound technical judgement with occasional guidance on strategic or highly complex issues within broad guidelines and policies.
Responsibilities
  • Complete industrial control system (ICS)/operational technology (OT) design through representation of the client's unique needs.
  • Work on SCADA/Human machine interface (HMI) design, configuration, and programming.
  • Implement Programmable Logic Controllers (PLC) system design, configuration, and programming.
  • Manage control system commissioning and startup.
  • Facilitate design reviews with clients and other BC consultants and contribute to planning evolution.
  • Analyze and interpret P&IDs, specifications, control schematics, and control strategies.
  • Handle networking in the ICS/OT space.
  • Understand and enforce cybersecurity requirements related to ICS/OT systems.
  • Flexibility to adapt and execute various additional assignments based on evolving needs.

Mentorship
  • May provide mentorship, guidance, support, and knowledge-sharing to help less experienced team members develop their skills and grow within their roles.

Skills and Competencies
  • Demonstrable knowledge in Industrial Control System (ICS)/Operational Technology (OT) Design.
  • Skill in Programmable Logic Controllers (PLC) System design, configuration, and programming.
  • Competency in SCADA/Human Machine Interface (HMI) design, configuration, and programming.
  • Understanding of networking and cybersecurity requirements in the ICS/OT space.
  • Excellent communication skills and ability to effectively convey facts, policies, and practices.
  • Proficiency in system trouble-shooting and problem solving.

Experience
  • Typically requires a minimum of 5 years' related work experience in Control System Integration and Design and ICS/OT systems.
  • Typically certified in the SMS Framework, and progressing through the SMS competencies.

Preferred
  • Professional Engineer (PE) license or ability to obtain within 6 months is strongly preferred.

Education
  • A bachelor's degree in computer science, engineering, or a related field or equivalent experience is required.

Salary Range: The anticipated starting pay range for this position is based on the employee's primary work location and may be more or less depending upon skills, experience, and education. These ranges may be modified in the future.
Location A: $95,000 - $129,000
Location B: $104,000 - $142,000
Location C: $114,000 - $155,000
You can view which BC location applies to you here. If you have any questions, please speak with your Recruiter.
Benefits and Other Compensation: We provide a comprehensive benefits package that promotes employee health, performance, and success which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time off and parental leave, paid holidays, 401(k) retirement savings plan with employer match, performance-based bonus eligibility, employee referral bonuses, tuition reimbursement, pet insurance and long-term care insurance. Click here to see our full list of benefits.
About Brown and Caldwell
Headquartered in Walnut Creek, California, Brown and Caldwell is a full-service environmental engineering and construction services firm with 50 offices and over 2,100 professionals across North America and the Pacific. For more than 75 years, we have created leading-edge environmental solutions for municipalities, private industry, and government agencies. We strive to be the company of choice-to our clients, who benefit from our passion for delivering exceptional quality, and to our employees, present and future, who share our commitment to client service, collaboration, and innovation. Join us, and you will find a home where you can do your best work, reach new levels of expertise, and enjoy exceptional development opportunities. For more information, visit www.brownandcaldwell.com
This position is subject to a pre-employment background check and a pre-employment drug test.
Notice to Third Party Agencies: Brown and Caldwell does not accept unsolicited resumes from recruiters or employment agencies. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement and approved engagement request with Brown and Caldwell, Brown and Caldwell reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.
Brown and Caldwell is proud to be an EEO/AAP Employer. Brown and Caldwell encourages protected veterans, individuals with disabilities, and applicants from all backgrounds to apply. Brown and Caldwell ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act.
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Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.
For further information, please review the Know Your Rights notice from the Department of Labor.

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