Senior Mechanical Project Engineer

Pacifico Energy develops, finances, builds, and operates energy infrastructure that powers businesses and communities. In the U.S., we are tackling one of the biggest challenges facing AI and large-scale data centers: access to reliable power. Our private grids bring dedicated generation and energy storage directly to customers, helping projects move forward without waiting for traditional utility connections. We draw on Pacifico Energy Group’s experience across the U.S., Japan, South Korea, and Vietnam, spanning solar, wind, battery storage, and natural gas.

Joining Pacifico means helping turn ambitious energy projects into operating infrastructure, with work that connects directly to the people and businesses building the future of AI.

We are hiring a Senior Mechanical Project Engineer to serve as the owner’s technical authority for all matters related to design, procurement, and construction of multi-unit simple cycle gas turbine power generation facilities with battery energy storage and associated auxiliary systems. The position supports projects across the company’s power generation development and execution portfolio but may become dedicated to a specific project site during the execution phase.

This role provides engineering leadership late-stage project development through procurement, EPC execution, commissioning, and long-term asset operation. The position is responsible for ensuring gas turbine project solutions meet project objectives for performance, efficiency, reliability, environmental compliance, lifecycle cost, and regulatory permitting.

The successful candidate will represent the company as the technical interface with equipment OEMs, Owner’s Engineers, EPC contractors, and other internal and external stakeholders, ensuring best-in‑class outcomes for owner‑developed and owner‑operated generation assets.

What you get to do:

• Act as the company’s subject matter expert and technical lead for power systems typically required for gas turbine power generation facilities.
• Provide oversight and Owner’s side coordination for major equipment definition, design and integration, including:
• SCRs
• Heat recovery systems when applicable
• Fuel gas and systems
• Oil lubrication and hydraulic systems
• Inlet air filtration, conditioning, and cooling
• Exhaust systems, silencers, and stack interfaces
• Cooling water systems and heat rejection auxiliaries
• Buildings, enclosures, ventilation, and fire protection
• Ensure major equipment and plant design solutions align with owner priorities including long‑term operability, maintainability, availability, and lifecycle economics.
• Identify and confirm boundary conditions, performance specifications, and scope of major equipment packages.
• Ensure integration at scope interfaces between suppliers as well as between owner, offtaker, and other external parties
• Oversee mechanical packaging, piping layouts, and equipment integration for gas turbine and balance‑of‑plant auxiliary systems, including interfaces with advanced augmentation and hybrid configurations.
• Conduct feasibility studies, conceptual design evaluations, and simplified engineering analyses, including:
• Heat and mass balance development
• Thermal performance assessments
• Water/heat balance calculations for plant auxiliary and cooling systems
• Interpret, validate, review, and otherwise perform owner‑level oversight of key engineering deliverables, including:
• Equipment data sheets and contract specifications
• Process Flow Diagrams (PFDs)
• Piping & Instrumentation Diagrams (P&IDs)
• Thermal system design documentation and performance inputs

• Support early‑stage project development activities including technology screening, conceptual design, and…