Critical Systems Commissioning Lead - Controls

YDU JC Air Cond & Ref Inc.- Dubai; Dublin; On-site; EUR 90,000 - 130,000; Full time

Job summary

Johnson Controls is seeking an experienced Critical Systems Commissioning Lead – Controls, based in Dublin, to drive BAS/BMS commissioning for critical-power and cooling infrastructure in next-gen data centres. You will lead testing, validation, and integration from factory through site acceptance, coordinating with electrical, mechanical and project teams.

You will review system architectures, write and execute IST plans, troubleshoot control logic and ensure safe, resilient operation across

Qualifications

• Relevant BAS/BMS, controls, automation or commissioning experience.
• Familiarity with BACnet, Modbus and controls network communications.
• Experience reading and debugging control software/code and sequences.

Responsibilities

• Lead BAS/controls commissioning and validation from factory to site testing.
• Review I/O lists, sequences of operation and functional design docs.
• Perform point-to-point checks, I/O verification and functional testing.
• Coordinate with electrical, mechanical and project teams during IST.
• Provide troubleshooting for hardware, software, field devices and networks.

Skills

BMS Commissioning

HVAC Systems

System Troubleshooting

Control Software

Project Coordination

Education

Engineering qualification

Tools

BACnet/IP

Modbus TCP/IP

P&IDs

Job description

Critical Systems Commissioning Lead – Controls Silent-Aire | Dublin

What you will do As an experienced BMS Commissioning Engineer, you will support the commissioning, integration and validation of Building Automation Systems and controls for advanced critical-power and cooling infrastructure for next-generation data centres. This is a hands-on technical role combining controls commissioning, factory testing, software validation, troubleshooting and integrated systems testing. You will work closely with electrical, mechanical, controls, manufacturing and project teams to ensure systems are safely tested, integrated and proven before handover. The role offers exposure to complex projects across multiple regions and the opportunity to influence BMS commissioning standards and best practices across the business.

How you will do it

• BAS Commissioning & Controls Commission and validate BAS/BMS controls from factory testing through final integrated testing.
• Review controls architecture, I/O lists, Description/Sequence of Operation and functional design documentation.
• Perform point-to-point checks, I/O verification and functional performance testing.
• Validate sensors, actuators, valves, VFDs, alarms, interlocks, permissives and control sequences.
• Read, interpret and troubleshoot BMS software/program code and control logic, with the ability to make software modifications where required.
• Troubleshoot controls hardware, software, field devices, networks and third-party system integration.
• Develop, review and execute commissioning and functional test scripts.

Systems Scope

• BAS/BMS controllers and supervisory systems.
• AHUs and CRAHs.
• Chillers, pumps and hydronic systems.
• Coolant Distribution Units (CDUs).
• Rear Door Heat Exchangers (RDHx).
• Direct liquid-cooled racks and associated cooling infrastructure.
• Control valves, actuators, VFDs and instrumentation.
• BAS interfaces with electrical power and critical equipment. EPMS, SCADA and third-party system integration. BACnet/IP, Modbus TCP/IP and other relevant communication protocols.

Integrated Systems Testing (IST)

• Lead the BAS/controls contribution to integrated systems testing.
• Coordinate with electrical and mechanical commissioning teams during failure-mode and resilience testing.
• Validate controls response during power loss, equipment failure, communications failure and system recovery.
• Verify redundancy, fail-safe operation, alarms and automated recovery sequences.
• Support black-building, power-restoration and client-witnessed testing.

Factory, Site & Regional Support

• Support commissioning activities from factory testing through deployment and handover.
• Review FAT/FWT/SAT and commissioning documentation.
• Witness equipment startup, load testing and integrated testing.
• Provide technical troubleshooting and escalation support to commissioning teams.
• Capture lessons learned and support consistent commissioning standards across projects.

Safety & Compliance

• Ensure safe systems of work for commissioning activities.
• Apply LOTO, switching-authority and permit-to-work requirements.
• Promote a strong commissioning and controls-safety culture.

What we look for

• Relevant BAS/BMS, controls, automation or commissioning experience.
• Practical understanding of HVAC, hydronic and liquid-cooling systems.
• Experience with data-centre cooling equipment such as CRAHs, chillers, CDUs, Rear Door Heat Exchangers and liquid-cooled racks is advantageous.
• Familiarity with I/O lists, Description/Sequence of Operation, P&IDs, controls schematics and commissioning test scripts.
• Ability to read and troubleshoot BAS software/program code and control logic.
• Understanding of BACnet, Modbus and controls network communications.
• Strong systematic troubleshooting and root-cause-analysis capability.
• Data-centre experience is preferred but not essential; experience from mission-critical facilities, industrial automation, manufacturing, pharmaceutical or similar environments will also be considered.
• Relevant controls, automation, electrical or engineering qualification, trade background or equivalent practical experience.

What will help you succeed

• Strong technical troubleshooting capability.
• Good understanding of the interaction between controls, electrical and mechanical systems.
• Safety-focused and comfortable making decisions during critical testing.
• Able to challenge system readiness when required.
• Clear technical writing and communication skills.
• Strong stakeholder management across engineering, manufacturing, commissioning and client teams.
• Willingness to travel for factory testing, on site commissioning and major IST activities.

Johnson Controls: Enhancing the Intelligence of Buildings

Your buildings have a purpose. They are places for people to live or work. Facilities for learning or healing. Venues for entertainment and shopping. Sites for the specialized storage of tangible goods or mission‑critical data. Your buildings have a huge variety of functions; they are central to your mission. This is where Johnson Controls comes in, helping drive the outcomes that matter most. Through a full range of systems and digital solutions, we make your buildings smarter. A smarter building is safer, more comfortable, more efficient, and, ultimately, more sustainable. Most important, smarter buildings let you focus more intensely on your unique mission. Better for your people. Better for your bottom line. Better for the planet. At Johnson Controls, we’ve been making buildings smarter since 1885, and our capabilities, depth of innovation experience, and global reach have been growing ever since. Today, we offer the world’s largest portfolio of building products, technologies, software, and services; we put that portfolio to work to transform the environments where people live, work, learn and play.