PLC Applications Engineer

Inframark, LLC; Tennessee; On-site; USD 70,000 - 95,000; Full time

Benefits offered by this job

Health insurance

401(k) plan

Paid time off

Job summary

Inframark, LLC is seeking a PLC Applications Engineer to develop PLC programs, test and startup systems, and train customers in the Tennessee area. The role involves field and factory testing, software installation, and collaboration with Project Managers to meet contract requirements.

Travel is required to start up and demonstrate SCADA systems. The position offers a generous benefits package including health, dental, life insurance, 401(k) and paid time off.

Qualifications

• Minimum 2 years' PLC programming experience, preferably in water/wastewater.
• Knowledge of PLC hardware and programming software (Allen-Bradley, Schneider, Siemens or Emerson).
• Ability to communicate with management and project team effectively.

Responsibilities

• Interpret project requirements from meetings and contract documents.
• Develop PLC application programs using the contract documents and System Control Narrative.
• Install software and verify correct execution; interface with third-party vendor systems.
• Participate in FAT/SAT testing and demonstrate functionality to stakeholders.
• Provide operator training and generate final project documentation.
• Offer technical assistance to customers and support field service staff.

Skills

PLC programming

Industrial protocols

Communication

Tools

Allen-Bradley

Schneider

Siemens

Emerson

Job description

Posted Monday, August 3, 2026 at 5:00 AM

Join Inframark: Pioneering Automation and Intelligence

Step into the future with Inframark's award-winning Automation and Intelligence team. We deliver cutting-edge solutions in instrumentation and controls, industrial cybersecurity, data analysis, and remote network operations center services for water and wastewater plants. Elevate your career and join us at Inframark.

Why Work for Inframark?

Our dedication to sustainability and community impact drives us to ensure clean, safe water for future generations. Whether you're at the start of your career or looking for advancement, Inframark offers purpose-driven work and opportunities for growth. We offer an attractive salary package, including a generous benefits package with health, dental, and life insurance, 401(k) plan, paid time off, sick leave, holidays, and wellness plan.

Inframark is hiring!

Inframark offers a Competitive Salary and a full Benefits Package.

We offer Flexible paid time off as needed, with the understanding that work requirements are being met, and it does not impact the workload of others that depend on you.

We are looking for a PLC Applications Engineer with PLC expertise in developing PLC application monitoring and control software, performing factory and field testing, startup, customer training and other PLC related service work.

Essential duties and responsibilities:

• Receives project requirements and direction through meetings with the Project Manager and review of the contract documents.
• Keeps managers advised of the status of tasks and projects landmarks. Maintains awareness of project budgets and keeps the PM aware of issues that would adversely affect the budget.
• Produces timely, accurate project documentation such as timesheets, trip reports, etc.
• Follows established Best Practices and Development Standards and Procedures.
• Produces the System Control Narrative on projects.
• Develop Programmable Logic Controller (PLC) application programs based on the contract documents and System Control Narrative using the PLC manufacturer’s Programming Software.
• Installs all developed application software and required vendor software and verifies their accurate execution.
• Interfaces the company’s supplied equipment to third‑party vendor systems via industrial communication protocols, when applicable.
• Participates in Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT), when required.
• Demonstrates overall system functionality to the Owner/Engineer/Contractor including hardware and network operation, SCADA monitoring and control, displaying data, alarming, and historical data collection for report generation.
• Provides training to operators, supervisors, and administrative personnel.
• Generates and gathers all required final project documentation.
• Provides technical assistance to Customers.
• Provides reactive and adaptable support to field service technicians to assist in solving and repair of PLC related issues at customer sites or by remote support as appropriate.

Qualifications:

Minimum 2 years' experience in PLC programming, preferably in the Water & Wastewater industry. PLC Application Engineers must have knowledge and experience

with PLC hardware and programming software (Allen‑Bradley and/or Schneider and/or Siemens and/or Emerson).

Ability to communicate orally with management and other co‑workers is crucial. Regular use of the telephone and e‑mail for communication is critical. Sitting for extended periods in front of a computer monitor is common. Hearing within normal ranges is vital for communication with the Project Team and customers. Adequate vision is needed for using a computer monitor. Lifting of computer servers, workstations, and peripherals is required. Good manual dexterity for setting up computer equipment and attaching associated cables.

Work environment:

The job is performed both indoors at the office and at the jobsite. Activities include extended periods of sitting and extensive work at a computer monitor. This job includes the potential of working irregular hours with on‑call availability to solve project startup and warranty problems.

Travel

Travel is required on a regular basis to start up, test, and demonstrate the company’s supplied SCADA monitoring and control systems.

Compensation is commensurate with experience and includes a generous benefits package with health, dental and life insurance, 401(k) plan, paid time off, sick leave, holidays, and wellness plan.

CMSTECH1

To support a safe and secure workplace, all offers of employment are contingent upon the successful completion of background screening, drug testing, and driving record review where applicable.

Inframark is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against based on disability.