Commissioning Engineer

Responsibilities

• Lead commissioning teams at various locations. The candidate must be willing to travel to sites during commissioning.
• Develop detailed commissioning plans in advance of commissioning activities.
• Ensure documentation is complete, including LOTO procedures, work instructions, maintenance procedures, detailed plans, schedules, budgets, etc.
• Own scopes relative to engineering expertise.
• Lead safe startup practices so everyone gets home safe.
• Confirm proper installation and functionality of equipment. Lead specific activities on site during dry and wet commissioning.
• Lead ramping activities for assigned commissioning area(s).
• Ensure equipment is functional, including controls functionality.
• Train and hand over equipment to onsite operators and maintenance personnel.
• Serve as a technical expert to assist in process engineering after handover to operations as needed.
• Simplify commissioning procedures, then assist in building tools in MarianaOS to automate and scale.
• Document and share lessons learned so every site starts from a stronger playbook.
• Support design teams and projects at other sites between commissioning cycles.
• Contribute to design reviews and HazOps during the design phase.
• Travel up to 80%, including extended site assignments during onsite commissioning. Short-notice trips are possible. Between projects, work from a Mariana office or, preferably, an operating asset when needed.

Requirements

• Bachelor’s degree or higher in chemical, mechanical, electrical, or a related engineering field preferred, or proven hands-on experience commissioning industrial systems.
• Hands-on commissioning experience on greenfield or new-plant startups, with deep expertise in electrical or mechanical systems and working knowledge of the other.
• Background in battery/EV, semiconductor, data centers, advanced manufacturing, or similar fast-paced industrial environments strongly preferred.
• Working knowledge of equipment common in mining and/or refining and plant utilities.
• Ability to read and mark up single-lines, P&IDs, schematics, and mechanical drawings.
• Desire to help build a smart P&ID system.
• Preferred: PLC/controls and instrumentation startup experience, experience at a company that designs, installs, and commissions its own equipment, and comfort using AI tools to speed up your work.
• Collaborative by default. You share knowledge openly and make the team around you better.
• Strong safety mindset, with experience leading safe energization, LOTO, and startup practices (NFPA 70E).
• Valid driver’s license.

Safety

Safety comes first on every project. You’ll model our site safety policies every day and help lead safe startup practices on site.

• Lead JHAs and LOTO for your commissioning scope, follow permit-to-work procedures, and participate in safety meetings, audits, and incident investigations.
• Participate in HazOps.
• Always wear proper PPE and complete all site safety training.

Physical Demands & Work Conditions

• Expect heavy on-site work, and extended or irregular hours during commissioning, followed by stretches of remote or office-based work.
• Active industrial and construction environments that involve standing, walking, climbing, and working in tight spaces for extended periods, and lifting up to 50 lbs.
• Noise, dust, outdoor work in varying weather, and remote site locations.