Automation Controls Engineer - PLC, HMI, BMS

Lavanya Vemireddy

******************@*****.*** +1-940-***-**** TX, USA LinkedIn

SUMMARY

Automation Controls Engineer with 2+ years of experience developing and commissioning control systems across PLC, HMI, BMS, and integrated field environments. Applies ControlLogix, Studio 5000, Ignition, and Modbus to build reliable control sequences, connect field devices, and support real-time system communication. Experienced in I/O validation, PID-based control, FAT/SAT, troubleshooting, and commissioning to deliver stable, testable, and production-ready automation systems.

TECHNICAL SKILLS

PLC Programming & Control Logic: Allen-Bradley (ControlLogix, CompactLogix, Studio 5000), Siemens (S7-1200, S7- 1500, TIA Portal), Ladder Logic, Structured Text, Function Block Diagram HMI, SCADA & Visualization: FactoryTalk View (ME, SE), Ignition, WinCC, PanelView, Alarm Management, Tag Configuration, Trend Development

Industrial Networking & Communication: EtherNet/IP, PROFINET, Modbus TCP/RTU, PROFIBUS, OPC UA, Industrial Ethernet

Motion, Drives & Field Devices: VFDs, Servo Systems, Motors, Sensors, Actuators, Remote I/O, Instrumentation, PID Control

Controls Engineering & System Integration: Electrical Schematics, Control Panels, I/O Lists, Sequence of Operations, Control Narratives, PLC-HMI Integration, Machine Controls Testing, Commissioning & Troubleshooting: FAT, SAT, System Commissioning, Startup Support, I/O Checkout, Root Cause Analysis, Controls Troubleshooting, Preventive Maintenance PROFESSIONAL EXPERIENCE

Automation Controls Engineer, E Tech Group Jan 2026 - Present TX, USA

Configured ControlLogix PLC logic and Ignition HMI screens for mission-critical BMS/EPMS systems supporting HVAC equipment, electrical monitoring, alarms, trends, interlocks, and operational status visibility.

Developed I/O lists, control narratives, and panel interface requirements for mechanical and electrical systems, reducing design clarification cycles by 18% during controls implementation and field coordination.

Integrated PLCs, remote I/O, meters, sensors, and HMIs through EtherNet/IP and Modbus TCP, enabling reliable communication across cooling, electrical distribution, and monitoring subsystems.

Validated control sequences through FAT, point-to-point checks, alarm testing, and equipment simulations, identifying and resolving 27 logic and communication defects before scheduled commissioning activities.

Diagnosed controller, network, and tag-level faults using Studio 5000 and Ignition diagnostics, reducing average controls issue resolution time by 21% during startup and commissioning activities.

Supported SAT and system commissioning with electrical and mechanical teams, verifying interlocks, alarms, trends, failover responses, and sequence performance before final system turnover and acceptance. Automation Controls Engineer, Johnson Controls Mar 2023 - Jul 2024 Hyderabad, India

Configured BMS controllers and operator graphics for commercial HVAC systems, translating approved sequences into temperature, pressure, scheduling, alarm, interlock, and equipment-control functions.

Mapped sensors, actuators, VFD signals, and controller points from approved drawings and I/O schedules, improving checkout accuracy across 160+ monitored and commanded building automation points.

Programmed control sequences for AHUs, pumps, and ventilation systems, applying PID control and equipment interlocks to maintain operating conditions and coordinate alarms through the BMS.

Executed point-to-point testing and pre-commissioning with field technicians, identifying wiring, addressing, and calibration discrepancies that reduced repeat site checks by 15% before functional acceptance testing.

Integrated VFDs and energy meters through Modbus, verifying status, commands, alarms, and trend data against approved controls drawings, sequences, and project commissioning requirements.

Completed functional performance testing, commissioning documentation, and as-built updates, closing 22 punch-list items and supporting structured handover of the commissioned building automation system. EDUCATION

Master of Science, University of North Texas Aug 2024 - May 2026 TX, USA Computer Science

Bachelor of Technology, Lakireddy Bali Reddy College of Engineering Jan 2021 - May 2024 AP, India Electronics and Communication Engineering

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