PLC/HMI Field Applications Specialist
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 2, 2026. Inframark scores B on the Alion truth index.
Position Summary
Inframark is seeking a Field Automation Systems (FAS) Engineer to play a crucial role in control system integration, commissioning, and customer support. This position involves configuring, programming, testing, and troubleshooting industrial control systems—including SCADA, PLCs, HMIs, networking equipment, and instrumentation—primarily in the Water/Wastewater Industry.
This is a hands-on field role that requires technical expertise, problem-solving skills, and a customer-focused approach. If you have experience with automation, control systems, and networking and enjoy working on-site to deliver innovative solutions, we encourage you to apply!
Key Responsibilities
Project Management & Coordination
Review project requirements through meetings with the Project Manager and contract document analysis.
Maintain clear communication with Project Managers, keeping them informed of task status, milestones, and budgetary concerns.
Produce accurate and timely documentation, including timesheets, trip reports, and system updates.
Follow established Best Practices, Development Standards, and Procedures to ensure high-quality project execution.
System Configuration & Programming
Set up system servers, workstations, operating systems, networks, and peripheral equipment at job sites.
Develop System Control Narratives to define automation logic.
Program PLCs (Programmable Logic Controllers) and develop HMI (Human-Machine Interface) applications according to contract specifications.
Conduct Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) when required.
Field Installation & Commissioning
Perform control panel commissioning, including field signal wiring, panel terminations, and I/O checkout.
Conduct system startups, integrating PLC, HMI, instrumentation, and networking equipment.
Ensure system hardware, network operation, SCADA functionality, and data collection align with project requirements.
Provide on-site training for operators, supervisors, and administrative personnel on system operation and maintenance.
Technical Support & Documentation
Provide on-call service support for customers, troubleshooting startup and warranty issues.
Perform instrument installation and calibration services, including physical setup, wire terminations, commissioning, and documentation.
Mark up control panel drawings to reflect final field modifications.
Assist with integrating third-party systems and devices into automation networks.
Other Duties
Participate in continuous improvement initiatives to enhance system efficiency.
Mentor and train junior team members to develop a strong engineering workforce.
Ensure all projects comply with safety and industry standards.
Qualifications & Skills
Education & Experience:
Technical degree in an engineering-related field OR 3+ years of field service experience in instrumentation, control systems, or automation.
Experience in the Water/Wastewater industry is highly preferred.
Technical Skills:
Strong understanding of control systems, PLC programming, and SCADA applications.
Knowledge of networking fundamentals, IP addressing, and communication protocols (Ethernet, Modbus, BACnet, etc.).
Ability to read and interpret electrical schematics, P&ID diagrams, and contract documents.
Hands-on experience with control panel integration, troubleshooting, and commissioning.
Soft Skills:
Excellent communication skills to interact with customers, project managers, and team members.
Strong problem-solving abilities and attention to detail.
Ability to work independently while contributing to a collaborative team environment.
Work Environment & Physical Requirements
Work Locations:
This job requires working in diverse environments, including:
Office settings for project planning and documentation.
Manufacturing shops and control panel assembly areas.
Customer jobsites (indoor and outdoor), including industrial and water treatment facilities.
Construction sites where physical tasks (lifting, climbing, working on ladders) may be required.
Work Conditions:
May require extended periods of sitting, standing, and manual work.
Exposure to varying weather conditions in field environments.
On-call availability for system troubleshooting, startup, and warranty support.