Project Engineer

Infinium; Sacramento (CA); On-site; USD 85,000 - 120,000; Full time

Job summary

Infinium is seeking a Project Engineer in the Engineering department to support commercial-scale energy projects, including SAF facilities and specialty power/cooling systems. You will work cross-functionally to ensure timely development of engineering packages and alignment between engineering, operations, procurement, and project management teams.

This role emphasizes technical integration, schedule discipline, and maintaining quality of engineering deliverables throughout the project

Qualifications

• Bachelor’s degree in Engineering (Mechanical, Electrical or Chemical) required or preferred.
• 3–7+ years of experience in project engineering within industrial or energy sectors.
• Experience coordinating engineering design packages for large-scale facilities.
• Understanding of PFDs, P&IDs, and 3D models.
• Strong communication and coordination across internal and external stakeholders.

Responsibilities

• Coordinate and oversee the development of engineering design packages (process, mechanical, electrical, instrumentation).
• Serve as liaison between internal teams, technology providers, operations, procurement, and vendors.
• Review datasheets and specifications; ensure documents meet design criteria before procurement.
• Manage progress, schedules, inter-discipline reviews, and risk/issue logs.
• Respond to technical queries (RFIs/TQs) and communicate with stakeholders.
• Lead design reviews, HAZOPs, constructability reviews, and value engineering sessions.
• Support procurement by reviewing vendor documents and ensuring integration with packages.
• Collaborate with construction/commissioning to implement design intent on site.
• Ensure activities support sustainability, safety, cost, schedule, and performance goals.

Skills

Cross-functional coordination

Project management

Multidisciplinary workflows

Communication

Education

Bachelor’s degree in Engineering (Mechanical, Electrical or Chemical preferred)

Job description

About Infinium

Infinium is reimagining how the world powers, moves, and computes. With Infinium Energy™, the company transforms waste carbon into ultra-low carbon eFuels that decarbonize aviation, industry, and transport. Through Infinium Edge™, Infinium brings a new thermal infrastructure to data centers—unlocking extreme compute performance by removing heat as a constraint. Grounded in deep chemistry and energy systems expertise, Infinium’s platforms turn carbon and heat from limits into opportunities.

Job Title: Project Engineer

Department: Engineering

About Infinium

Infinium is reimagining how the world powers, moves, and computes. With Infinium Energy™, the company transforms waste carbon into ultra-low carbon eFuels that decarbonize aviation, industry, and transport. Through Infinium Edge™, Infinium brings a new thermal infrastructure to data centers—unlocking extreme compute performance by removing heat as a constraint. Grounded in deep chemistry and energy systems expertise, Infinium’s platforms turn carbon and heat from limits into opportunities.

Role Overview

The Project Engineer will support the execution of commercial-scale scale energy projects that include, Sustainable Aviation Fuel (SAF) production facility and specialty power / cooling systems working cross-functionally to ensure timely development of engineering packages and alignment between engineering, operations, procurement, and project management teams. This role is critical to maintaining technical integration, schedule discipline, and quality of engineering deliverables throughout the project lifecycle.

Key Responsibilities

• Coordinate and oversee the development of engineering design packages, including process, mechanical, electrical, and instrumentation scopes.


• Serve as the primary liaison between internal engineering teams, technology providers, operations, procurement, and external vendors to ensure technical alignment and efficient workflow.


• Review and validate process and mechanical datasheets, equipment specifications, and design criteria prior to issuing documents to vendors or initiating procurement activities.


• Manage and track engineering progress, deliverable schedules, inter-discipline reviews, and risk/issue logs.


• Manage responses to technical queries (RFIs/TQs) and ensure clear and timely communication across project stakeholders.


• Facilitate technical interface management and resolve design conflicts between engineering disciplines.


• Lead and participate in design reviews, HAZOPs, constructability reviews, and value engineering sessions.


• Support procurement activities by reviewing vendor documentation, providing technical input during bid evaluations, and ensuring vendor deliverables integrate correctly with engineering packages.


• Collaborate with the construction and commissioning teams to ensure design intent is understood and properly implemented on site.


• Ensure that all engineering activities support project goals around sustainability, safety, cost, schedule, and performance.

Qualifications

• Bachelor’s degree in Engineering (Mechanical, Electrical or Chemical engineering preferred).


• 3–7+ years of experience in project engineering within industrial, energy, large scale power projects, chemical, or renewable fuels projects.


• Experience developing or coordinating engineering design packages on large-scale process facilities.


• Strong understanding of multidisciplinary engineering workflows (process, mechanical, E&I, civil/structural).


• Familiarity with EPC project delivery, Pre-FEED, FEED, and detailed design workflows.


• Working knowledge of engineering document control, PFDs, P&IDs, equipment data sheets, and 3D models.


• Ability to manage multiple interfaces and coordinate processes across internal and external stakeholders.


• Excellent communication, problem-solving, and project coordination skills.