Commissioning Engineer

Thermo Systems LLC.; Ireland; Remote; EUR 75,000 - 110,000; Full time

Benefits offered by this job

Annual bonus

Technical training

Exposure to complex projects

Collaborative culture

Job summary

Thermo Systems LLC is seeking an experienced Commissioning Engineer to lead advanced commissioning across BMS, EPMS, PLC, and SCADA systems for mission-critical projects. You will diagnose issues, modify control logic, and support system integration to ensure robust, fully integrated operations.

Ideal candidates bring 5+ years in commissioning/controls, strong fault diagnosis skills, and the ability to travel up to 75% across Ireland, UK, Netherlands, Denmark and Finland.

Qualifications

• Degree or equivalent in Electrical Engineering, Controls, Automation, or related discipline.
• 5+ years’ commissioning, controls engineering, or system integration experience.
• Experience in mission-critical/data centre environments.
• Ability to interpret and validate control sequences, schematics, and design documentation.

Responsibilities

• Lead commissioning for BMS, EPMS, PLC, and SCADA systems on data centre projects.
• Perform advanced validation including point-to-point checks and IST.
• Diagnose, troubleshoot and resolve complex system issues across controls, networking, and field devices.
• Modify and optimize PLC logic and SCADA/BMS graphics during live projects.
• Support system integration between mechanical, electrical and control systems.
• Validate control sequences under normal, fault, and failover scenarios.
• Lead Level 3–5 commissioning activities and client sign-off.
• Review design docs, narratives, and software for field alignment.
• Produce commissioning reports, scripts, and issue logs.
• Coordinate with cross-functional teams on scope, schedule, deliverables.
• Communicate clearly with internal teams, customers, and partners.
• Identify and escalate risks or scope changes early.

Skills

BMS/EPMS/PLC/SCADA systems

PLC code/SCADA graphics

Electrical systems

Control narratives/docs

Troubleshooting

Commissioning: FAT/SAT/IST

Communication

Prioritisation

Problem solving

Quality & safety

Travel on-site

Education

Electrical Engineering

Controls/Automation

Tools

Rockwell

Siemens

Ignition

Schneider

Job description

Career Opportunities with Thermo Systems LLC

Careers At Thermo Systems LLC

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Location: Field-Based - Remote with Travel

Employment Status: Full-Time | Direct Hire

Compensation: Competitive + Bonus

Travel: Up to 75% - Ireland, UK, Netherlands, Denmark and Finland

Who We Are

Thermo Systems is a global, full-service control systems integration partner delivering premier class automation solutions across the Energy, Life Sciences, and Mission Critical markets.

Guided by The Thermo Way, we are unified, dynamic, and committed to delivering excellence. Our culture is grounded in three core principles:

• Employee Success – investing in our people and their growth
• Customer Success – delivering reliable, high-quality solutions
• Financial Strength – operating with discipline and long-term focus

We believe strong teams, trusted partnerships, and technical excellence drive sustainable success.

The Opportunity

The Commissioning Engineer will lead and execute advanced commissioning activities across mission-critical projects, with a focus on BMS, EPMS, PLC, and SCADA systems. This role goes beyond field validation, requiring the ability to diagnose system issues, modify and develop control logic, and support system integration during commissioning and delivery phases.

Working closely with Engineering, Integration, and Operations teams, you will play a key role in ensuring systems are not only installed correctly, but functionally robust, fully integrated, and aligned with design intent and operational requirements.

This position is ideal for an experienced commissioning professional with strong controls expertise, capable of bridging the gap between design, software, and field execution in high-availability environments.

This position is ideal for professionals who value accountability, technical rigor, and hands-on execution in environments where safety, performance, and reliability matter every day.

What You’ll Do

Core Responsibilities:

• Lead commissioning activities for BMS, EPMS, PLC, and SCADA systems across mission-critical/data centre projects
• Perform advanced system validation including point-to-point checks, functional testing, and integrated systems testing (IST)
• Diagnose, troubleshoot, and resolve complex system issues across controls, networking, and field devices
• Modify, develop, and optimise PLC logic and SCADA/BMS software during commissioning phases
• Support system integration between mechanical, electrical, and control systems to ensure cohesive operation
• Validate control sequences under normal, failure, and redundancy scenarios (including failover testing)
• Support and lead Level 3–5 commissioning activities, including client witnessing and sign-off
• Review design documentation, control narratives, and software to ensure alignment with field implementation
• Produce and maintain detailed commissioning reports, test scripts, and issue logs
• Coordinate with cross-functional teams to align scope, schedule, and deliverables.
• Communicate clearly and proactively with internal teams, customers, and partners.
• Identify and escalation risks, constraints, or scope changes early.

Quality, Safety & Process

• Adhere to company policies, QMS requirements, and established safety standards.
• Deliver accurate, high-quality results with strong attention to detail.
• Identify opportunities for process improvement and contribute to stronger execution and efficiency.

What We’re Looking For

Education & Experience:

• Degree or equivalent experience in Electrical Engineering, Controls, Automation, or related discipline
• 5+ years’ experience in commissioning, controls engineering, or system integration
• Strong experience in mission-critical/data centre environments

Skills & Qualifications:

• Strong knowledge of BMS, EPMS, PLC, and SCADA systems (e.g., Rockwell, Siemens, Ignition, Schneider)
• Experience developing or modifying PLC code and SCADA/BMS graphics during live project environments
• Understanding of electrical systems, control architectures, and networked systems
• Ability to interpret and validate control sequences, schematics, and design documentation
• Proven troubleshooting capability across software, hardware, and integration layers
• Experience with commissioning processes including FAT, SAT, and IST (Level 1–5)
• Effective communication and teamwork skills
• Ability to manage priorities in fast-paced, high-pressure environments
• Strong problem-solving and decision-making capability
• Commitment to quality, safety, and accountability
• Willingness to travel and work on-site as required

What You’ll Get

• Competitive compensation with annual bonus opportunity
• In-house and external technical training opportunities
• Exposure to complex, high-impact automation projects
• A collaborative culture built on integrity, accountability, and teamwork

Work Environment & Physical Requirements
The physical and environmental demands described here are representative of those required to perform the essential functions of this role. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

Equal Employment Opportunity
Thermo Systems provides equal employment opportunities (EEO) to all employees and applicants without regard to race, color, religion, sex, national origin, age, disability, genetics, or any other protected status.

Disclaimer
This job description outlines the general nature and level of work expected. Responsibilities may evolve based on business needs.