Senior Engineer Job Bethlehem area,Pennsylvania USA,Engineering

Job Position:
Senior Engineer (HVAC)
Location:
Bethlehem, PA (Onsite)
Duration:
Contract
Rate : $53/hr c2C /, $45/hr w2

Key Responsibilities

Control Systems & PLC Software
Design, develop, and maintain PLC software for HVAC systems including chillers, AHUs, FCUs, pumps, and compressors
Develop control logic for temperature, pressure, flow, humidity, and energy optimization
Program and troubleshoot PLCs (e.g., Siemens, Rockwell/Allen Bradley, Schneider, or equivalent)
Implement communication protocols such as Modbus, BACnet, Lon Works, Profibus, Profinet, and Ethernet/IP
Support integration with Client/EMS
Motors & Drives
Design and validate motor control strategies for AC/DC motors, EC motors, VFDs, and soft starters
Select and specify motors, drives, and protection devices based on application requirements
Optimize motor performance for energy efficiency, reliability, and compliance with HVAC standards
Troubleshoot motor and drive-related field issues
Controls & Hardware
Design control panel architectures, I/O mapping, wiring schematics, and control hardware layouts
Review and approve electrical drawings, BOMs, and technical documentation
Ensure compliance with applicable standards (IEC, UL, IS, NEC, CE, etc.)
Testing & Commissioning
Perform software testing, FAT, SAT, and on-site commissioning
Diagnose and resolve system-level issues during testing and field deployment
Support root cause analysis and corrective actions
Collaboration & Leadership
Work closely with mechanical, electrical, firmware, and system engineering teams
Provide technical guidance and mentoring to junior engineers
Interface with customers, suppliers, and cross-functional stakeholders

Required Qualifications

Bachelor s or master s degree in electrical engineering, Electronics, Mechatronics, or related field
7 12 years of experience in HVAC controls, motor systems, or industrial automation
Strong hands-on experience with PLC programming and debugging
Solid understanding of motor control theory, VFDs, and HVAC system operation
Experience with HVAC control strategies and energy optimization

Technical Skills

PLC Programming:
Ladder Logic, Function Block, Structured Text
Motors & Drives:
Induction motors, BLDC/EC motors, VFD tuning
HVAC Controls: PID tuning, sequencing, alarms, safety interlocks
Communication: BACnet, Modbus RTU/TCP, Lon Works, CAN, Ethernet
Tools: PLC IDEs, HMI/SCADA tools, simulation and testing tools

Diverse Lynx LLC is an Equal Employment Opportunity employer. All qualified applicants will receive due consideration for employment without any discrimination. All applicants will be evaluated solely on the basis of their ability, competence and their proven capability to perform the functions outlined in the corresponding role. We promote and support a diverse workforce across all levels in the company.