Thermal System Controls Developer

Vertiv Group Corporation; Westerville (OH); On-site; USD 95,000 - 135,000; Full time

Job summary

Vertiv seeks a Thermal System Controls Developer to design and implement software and control logic for system-level thermal controls and optimization solutions across CDU systems, pumps, chillers, and heat rejection equipment.

You will collaborate with cross-functional teams to standardize platforms, develop reusable blocks, and support field deployment including testing, commissioning, and remote troubleshooting.

Qualifications

• Degree in engineering or technical field.
• Experience in industrial automation and HVAC/thermal controls.
• Proficiency in PLC programming and IEC 61131-3 languages.
• Strong Python scripting for automation and data handling.
• Experience with HMI/GUI and SCADA platforms.
• Knowledge of Modbus TCP, BACnet, MQTT protocols.
• Ability to read electrical schematics and control diagrams.
• Excellent written and verbal English communication.

Responsibilities

• Develop software and control logic for system-level thermal controls and optimization solutions.
• Support software for platforms like Chilled Water Manager, Optimizer, and secondary fluid network manager.
• Write, test and maintain PLC/control code (Codesys, IEC 61131-3).
• Develop tools and automation utilities using Python.
• Develop GUI/HMI interfaces, dashboards and operator workflows.
• Implement control strategies for hydronic and liquid cooling systems.
• Create reusable software modules for scalable deployment.
• Support customer-specific customization and project architecture.

Skills

PLC programming

Codesys

Python

HMI/GUI development

SCADA platforms

Modbus TCP/BACnet/MQTT

English communication

Education

Bachelor’s degree in Engineering, Automation, Computer Science, Electrical or Mechanical Engineering

Tools

Codesys

Ignition/Unify SCADA

Git

MQTT

Job description

Position Summary

The Thermal System Controls Developer will be responsible for the development, implementation and support of software and control logic for Vertiv’s system-level thermal controls and optimization solutions.

The role will support the evolution of Vertiv’s control platforms across the full thermal chain, including CDU systems, secondary fluid network management, pumps, chillers, heat rejection systems, heat reuse applications and plant-level optimization solutions.

This position will contribute to both product development and customer project execution, developing control software, reusable software modules, GUI/HMI elements, integration features and project-specific control logic.

The role will work closely with Offering Management, Platform Engineering, Controls Engineering, Commissioning, Service and other Vertiv business units to support standardization, product growth and successful deployment of system-level thermal control solutions.

Key Responsibilities

• Develop software and control logic for Vertiv’s system-level thermal controls and optimization solutions.
• Support the development of software for platforms such as the Chilled Water Manager and Optimizer, Secondary Fluid Network Manager and future thermal system control applications.
• Write, test and maintain PLC/control code, primarily using Codesys and IEC 61131-3 programming languages.
• Develop supporting tools, scripts, data processing routines and automation utilities using Python.
• Support the development and configuration of GUI/HMI interfaces, dashboards, visualization pages and operator workflows.
• Implement control strategies for hydronic and liquid cooling systems, including CDU systems, secondary loops, pumps, valves, chillers, buffer tanks, heat rejection equipment and heat reuse applications.
• Develop standard software modules, reusable control blocks and libraries to support scalable deployment across multiple projects and platforms.
• Support project-specific customization based on customer requirements, site-specific sequences of operation and project architecture.
• Collaborate with Offering Management to translate roadmap needs, customer feedback and new feature requests into technical software requirements.
• Collaborate with Platform Engineering and Business Unit teams to identify synergies, standardization opportunities and reusable software components.
• Support integration with Vertiv and third-party equipment using industrial communication protocols such as Modbus TCP, BACnet, MQTT and other relevant interfaces.
• Support factory testing, software validation, simulation, functional testing and project preparation activities.Support commissioning teams during remote troubleshooting, urgent software modifications and selected field activities.
• Maintain software documentation, version control, release notes and development records in line with Vertiv processes.
• Capture field feedback and lessons learned to improve future software releases and product roadmap priorities.

Requirements

• Bachelor’s degree in Engineering, Automation, Computer Science, Electrical Engineering, Mechanical Engineering or equivalent technical experience.
• Experience in industrial automation, HVAC controls, liquid cooling controls, BMS, PLC programming or data center thermal controls.
• Strong programming capability with Codesysor similar PLC development environments.
• Knowledge of IEC 61131-3 programming languages, especially Structured Text.
• Working knowledge of Pythonfor scripting, automation, data handling or software support tools.
• Experience with HMI/GUI development, SCADA systems or industrial visualization platforms.
• Good understanding of control systems, sensors, actuators, control loops and plant-level automation.
• Knowledge of industrial communication protocols such as Modbus TCP, BACnet, MQTT or similar.
• Ability to read and interpret control diagrams, sequence of operation documents, P&IDs, electrical schematics and I/O lists.
• Ability to work in a global, cross-functional environment.
• Good written and verbal communication skills in English.

Preferred Qualifications

• Experience with chilled water systems, hydronic plants, liquid cooling systems, CDU systems, secondary fluid networks or data center cooling systems.
• Experience with plant-level optimization, energy efficiency strategies, PID tuning, equipment sequencing or supervisory controls.
• Experience with Ignition, Unify or equivalent SCADA/HMI platforms.
• Experience with Git or other software version-control tools.
• Experience supporting FAT, SAT, commissioning or field troubleshooting activities.
• Familiarity with data center infrastructure, mission-critical environments and thermal system integration.

Travel

Willingness to travel up to approximately 20%, including customer sites, Vertiv facilities, factory testing, commissioning support and project troubleshooting activities.