Senior Engineer - Commissioning

About Our Company: Headquartered in Denver, Colorado, Cologix is a leading North America network-neutral interconnection and hyperscale edge data center company.

Our platform gives customers access to 45+ digital edge and Scalelogix℠ hyperscale edge data centers in 13 markets across the United States and Canada along with a carrier-dense ecosystem of 710+ networks, 360+ cloud providers, 35+ onramps and seven Internet exchanges.

We provide our nearly 2,000 customers with direct access to our local operations teams, resulting in strong partnerships enabled by exceptional operational support and unparalleled customer service.

Backed by one of the largest North American infrastructure funds, Cologix's experienced leadership team, certified staff and commitment to ESG initiatives help form a culture that values our people, our environment and our clients. About the Position: The Sr.

Engineer – Commissioning is responsible for directing and/or supporting planning, coordinating, and executing all commissioning activities associated with mission-critical data center projects.

This role ensures that mechanical, electrical, plumbing (MEP), controls, and security are designed, installed, tested, and operated in accordance with project requirements and industry best practices. The Sr. Engineer - Commissioning supports the Sr.

Director of Commissioning and works closely with design teams, general contractors, trade partners, equipment vendors, commissioning agents, and operations personnel to deliver fully functional facilities ready for turnover.

The ideal candidate has direct commissioning experience in mission-critical environments, with a strong understanding of electrical distribution systems, backup power generation, UPS systems, multiple cooling systems, BMS/EPMS controls, and liquid cooled systems.

This individual must be comfortable working in a fast-paced construction environment while maintaining a strong focus on safety, quality, schedule, details, and operational readiness. What you do daily: Develop, with the Sr.

Director of Commissioning, commissioning standards for the company to apply to all future projects. Support in the development in commissioning plans on a per project basis.

Support and/or lead commissioning activities for projects from pre-design through turnover and occupancy, including L1 activities as required, and L2 through L5. Coordinate commissioning schedules with project managers, contractors, vendors, and commissioning agents to support overall project milestones.

Assist in managing the OFCI vendor equipment delivery schedules to align with construction and commissioning requirements.

Review and approve commissioning scripts developed by the commissioning agent for projects Review design documents, equipment submittals, and sequences of operation to ensure systems can be tested and commissioned effectively.

Track commissioning progress and maintain commissioning logs, issue lists, deficiency reports, and turnover documentation. Attend factory witness testing (FWT) where required Facilitate site acceptance testing (SAT) for all equipment.

Verify installation, pre-energization and startup of electrical, mechanical, controls, security and life-safety systems in accordance with project requirements. Participate in commissioning meetings and provide regular status updates to project leadership and stakeholders.

Coordinate functional performance testing of UPS systems, generators, switchgear, chillers, fan walls, split systems, CRAHs/CRACs, BMS, EPMS, and other critical systems. Support integrated systems testing.

Manage resolution of commissioning issues by working with design consultants, contractors, vendors, and commissioning agent. Support operational readiness by coordinating training, turnover documentation, SOP/MOP/EOP reviews, and final acceptance activities.

What Makes You a Good Fit: Bachelor’s degree in Architecture, Engineering, Construction Management or related field from an accredited University. Equivalent technical experience considered. 3 to 5 years of commissioning experience supporting mission-critical and/or data center projects.

Working knowledge of electrical distribution systems including utility service, switchgear, transformers, generators, ATSs, UPS systems, and PDUs. Experience commissioning mechanical systems such as chillers, cooling towers, dry coolers, fan walls, CRAHs, CRACs, pumps, and associated controls.

Familiarity with Building Management Systems (BMS), Electrical Power Monitoring Systems (EPMS), and integrated controls platforms.

Understanding of commissioning processes including QAQC, start-up and energization, pre-functional testing, functional performance testing, integrated systems testing, and turnover procedures. Experience reviewing mechanical, electrical, process flow, and control system drawings and specifications.

Ability to review, develop, execute, and document commissioning plans, scripts, procedures, and test reports. Strong coordination s