Lead Controls / Software Engineer

Submer • Spring, TX

14d • Onsite

About The Position

Submer enables sustainable digital infrastructure by providing cutting-edge liquid cooling solutions for data centers. Our technology is designed to reduce environmental impact while improving performance and efficiency. We are a purpose-driven company with a passion for innovation and a growing global presence. We’re bringing on a Lead Controls / Software Engineer to drive the design, development and integration of control systems that run our modular MEP platforms for data centers. This role is responsible for the full controls stack: architecture, PLC/SCADA programming, data integration, control logic, sequencing and system-level validation. You’ll work closely with mechanical, electrical, and systems architects to define how each MEP module is monitored, automated and coordinated so the entire facility operates reliably and efficiently. You’ll also guide best practices, review vendor implementations and help shape the long-term controls roadmap. This role reports to the Director of Engineering.

Requirements

• Bachelor’s degree Controls Engineering, Computer Engineering or related discipline. 8+ years of experience in controls engineering, automation or industrial software development, ideally with mission-critical facilities or modular equipment.
• Strong hands-on experience with PLC programming (Allen-Bradley, Siemens or equivalent) and HMI/SCADA platforms.
• Solid understanding of control theory, sequencing, PID loops, interlocks and safety logic.
• Familiarity with mechanical and electrical systems found in data centers (cooling systems, switchgear, power distribution, pumps, valves, sensors).
• Experience with industrial communication protocols (Modbus, BACnet, OPC UA, Ethernet/IP).
• Ability to read and produce P&IDs, control narratives, wiring diagrams and network architecture documents.
• Experience with commissioning, field testing and troubleshooting automation systems.
• Strong communication and documentation skills.
• Experience leading smaller teams or mentoring engineers in a controls environment.

Responsibilities

• Own the architecture and development of control systems for modular MEP equipment across cooling, power, plumbing and support utilities.
• Define control strategies, sequences of operation, alarm logic, failover logic and interlocks across mechanical and electrical systems.
• Develop PLC, HMI and SCADA code and oversee software integration with building management systems, EPMS and monitoring platforms.
• Produce control architecture diagrams, network layouts, data models and interface specifications.
• Lead cross-functional design reviews to ensure control systems align with mechanical, electrical and systems architecture requirements.
• Review and approve vendor controls submittals, functional specifications, hardware selections and software implementations.
• Validate system performance during FAT, SAT and commissioning, including troubleshooting controls, sensors, networks and automation workflows.
• Coordinate with cybersecurity and IT teams to ensure controls networks meet security and reliability requirements.
• Establish coding standards, documentation guidelines and version-control processes for internal and external partners.
• Mentor controls engineers and support training for engineering, operations and commissioning teams.
• Support continuous improvement of the MEP modules by identifying opportunities for automation, optimization and predictive insights.

Benefits

• Attractive compensation package refleting your expertise and experience.
• Medical Insurance Plan.
• 401k Employee volunteer contribution Plan.
• A great work environment characterised by friendliness, international diversity, flexibility, and a hybrid-friendly approach.
• You´ll be part of a fast-growing scale-up with a mission to make a positive impact, offering an exciting career evolution.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level