Senior Process Engineer – Biofuels Operations

Role Overview

The Senior Process Engineer will own the process engineering scope for M2X’s bio-methanol and RNG facilities across the full asset life cycle — site and process design, commissioning and startup, day-to-day operations support, and ongoing performance improvement. This individual will be the technical authority on gas conditioning, separation, and conversion unit operations: developing and maintaining PFDs, PIDs, and heat and material balances;

running simulations to evaluate design and off-design cases; troubleshooting alongside operators in the field; and identifying and executing improvements in methane recovery, yield, uptime, and safety. The ideal candidate is a hands‑on chemical engineer who is equally comfortable in a simulation file, a HAZOP session, and a control room at 2 a.m. during a startup.

• Serve as the process engineering point of contact for operating sites, supporting operators and technicians on day-to-day performance, upsets, and equipment issues.
• Lead root‑cause analysis on process deviations, off-spec product, and equipment underperformance; drive corrective actions to closure.
• Monitor plant data and KPIs (methane recovery, product quality, energy intensity, availability) and translate trends into actionable engineering recommendations.

• Develop and maintain PFDs, PIDs, heat and material balances, equipment datasheets, line lists, and BOMs for new sites and modifications.
• Build and review process simulations (HYSYS, Aspen, or equivalent) to size equipment and evaluate design, turndown, and off‑design operating cases.
• Specify and evaluate gas conditioning, separation, and conversion equipment — including PSA, TSA, membrane, cryogenic, and absorption/stripping systems, plus compression, refrigeration, heat exchange, and phase separation.

• Support pre‑commissioning, commissioning, and startup in the field, including system walkdowns, punch‑list resolution, and operating procedure development.
• Execute performance and acceptance testing with technology vendors; document results and close out guarantees.
• Train operations personnel on process intent, normal operating windows, and abnormal‑condition response.

• Identify, justify, and execute debottlenecking and reliability projects that improve throughput, methane recovery, energy use, and operating cost.
• Own management‑of‑change for process modifications, from concept and economic justification through field implementation and as‑built documentation.
• Capture lessons learned across sites and feed them back into standard designs and operating practices.

• Lead or actively participate in HAZOP/PHA, LOPA, and relief‑system reviews; track and close resulting action items.
• Ensure designs and modifications comply with applicable codes and standards (e.g., ASME, API, NFPA) and site permit conditions.
• Partner with HSE and regulatory teams on emissions, monitoring, and reporting requirements for renewable fuels assets.

• Work with technology vendors, consulting engineers, and EPC partners on equipment selection, design reviews, and field support.
• Coordinate closely with project management, construction, controls, and operations to keep design intent intact through execution.
• Stay current on emerging bio‑methanol, RNG, and gas‑conversion technologies and bring relevant options to the team.

• B.S. in Chemical Engineering (or closely related discipline) and 10+ years of process engineering experience in gas processing, chemicals, refining, or renewable fuels.
• Hands‑on design and operating experience with gas separation and treating unit operations — PSA, TSA, membrane, cryogenic, and/or chemical absorption and stripping — plus supporting equipment such as compression, refrigeration, heat exchange, and phase separation.
• Demonstrated ownership of PFDs, PIDs, heat and material balances, and BOMs, and active participation in HAZOP or other process hazard analyses.
• Proficiency with process simulation software (HYSYS,…