Mechanical Systems Engineer

Allied Graphite is a U.S.

-based developer of advanced graphite processing technology focused on the production of battery‑grade graphite materials for lithium‑ion batteries and other industrial applications. Our proprietary processes are designed to deliver high-quality graphite products with a strong emphasis on efficiency, scalability, and performance.

The Company operates a pilot-scale facility in Mesa, Arizona and is advancing its technology toward commercial deployment in North America. In support of our development strategy, Allied Graphite maintains a long‑term supply relationship with Graphcoa, a graphite developer in Brazil also backed by Appian, providing a consistent source of natural flake graphite concentrate to support planned commercial operations.

We offer a collaborative, entrepreneurial environment where employees contribute directly to innovative technology, commercial growth, and the advancement of next‑generation materials solutions.

The Mechanical Systems Engineer will serve as part of Allied Graphite's owner’s engineering team, providing technical leadership and review of engineering deliverables prepared by contracted engineering service providers. The role supports the design, procurement, construction, and commissioning of process facilities, with a focus on process piping systems for chemical processing, slurry transport, gas systems, and plant utility infrastructure.

This position reports to the Engineering Manager and is initially based in Mesa, Arizona. As Allied Graphite advances toward a commercial‑scale graphite processing facility at a to‑be‑determined U.S. project site, permanent relocation to the final site will be required to support construction, commissioning, and long‑term operations. The role is expected to be in‑office and on‑site as required, with approximately 25% travel to support engineering reviews, vendor visits, factory acceptance testing (FAT), and coordination with engineering service providers and project stakeholders.

Reports to Engineering Manager or Engineering & Projects Manager.

• Serve as owner’s‑team subject matter expert for process piping systems across study, FEED, detailed design, construction, and commissioning phases.
• Review engineering service provider deliverables such as PFDs, P&IDs, line lists, piping specifications, layouts, 3D model reviews, and isometrics.
• Ensure piping systems support operability, maintainability, safety, and constructability.
• Coordinate with process, mechanical, electrical, controls, and operations teams.
• Participate in HAZOP, constructability reviews, and model reviews.
• Support development of internal piping standards and specifications.
• Assist during procurement, fabrication, construction, and commissioning phases.

• Bachelor’s degree in Mechanical Engineering.
• 6+ years to 10+ years of industrial engineering experience.
• Experience with process piping systems in industrial process plants.
• Familiarity with ASME B31.3.
• Experience reviewing contractor engineering deliverables.
• Strong written and verbal communication skills.

• Professional Engineer (PE) license or ability to obtain.
• Experience with slurry or corrosive service piping.
• Experience working on owner teams or EPC/EPCM projects.

This is an opportunity to take on meaningful technical ownership as part of a small, focused owner’s engineering team advancing a first‑of‑kind commercial graphite processing facility in North America. You will work directly with engineering service providers and shape how these systems are designed, built, and operated from the ground up.