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Plant Manager – Renewable Natural Gas (RNG)

Location: Dallas, Texas

Employment Type: Full-Time

Overview

AD Energy Recruitment is partnering with a leading Renewable Natural Gas developer/operator in the Dallas region to appoint a highly skilled RNG Plant Manager. This role will oversee the daily operation, maintenance, compliance, and performance optimisation of a large-scale biogas-to-RNG production facility.

The Plant Manager will be responsible for asset reliability, operational excellence, environmental stewardship, and team leadership—ensuring safe, efficient conversion of biogas into pipeline-quality RNG.

Key Responsibilities

Operational Leadership

  • Lead all day-to-day operations of the RNG facility, including digester systems, gas cleaning/upgrading equipment, compression, flare systems, and utilities.
  • Optimise plant throughput, methane recovery, and gas quality to meet contractual off-take specifications.
  • Oversee SCADA/HMI system monitoring, alarm response, and operational data analysis to drive continuous improvement.

Maintenance & Reliability

  • Develop and execute preventive, predictive, and corrective maintenance programs for mechanical, electrical, and instrumentation assets including pumps, blowers, separators, membranes, compressors, and analyzers.
  • Ensure proper CMMS utilisation (e.g., work orders, asset history, inventory tracking).
  • Troubleshoot complex process, mechanical, and electrical faults, coordinating with OEMs and external contractors when necessary.

Health, Safety, Environmental & Compliance

  • Enforce all HSE and process safety requirements in line with OSHA, EPA, local/state permitting, and internal operating procedures.
  • Maintain compliance with air permits, flare performance requirements, emissions monitoring, SPCC, and waste-handling regulations.
  • Lead incident investigations, root-cause analysis (RCA), and corrective action implementation.

Team Management

  • Supervise operators, technicians, and contract personnel; oversee scheduling, competency development, and training.
  • Foster a strong safety and performance culture across all shifts.

Financial & Performance Management

  • Manage plant budget, consumables, chemical usage, spare parts, and vendor contracts.
  • Track and report key operational metrics such as gas flow, methane concentration, downtime, digester health, and utility consumption.
  • Support senior leadership with forecasting, optimization strategies, and capex planning.

Qualifications

Required

  • 5–10+ years of experience in process plant operations (RNG, biogas, wastewater treatment, chemical, oil & gas, or industrial utilities).
  • Strong technical knowledge of anaerobic digestion, biogas handling, and RNG upgrading technologies (membrane, PSA, chemical scrubbing, etc.).
  • Proven track record leading operational teams in a 24/7 industrial environment.
  • Experience with SCADA/HMI systems and process instrumentation.
  • Strong troubleshooting capabilities across mechanical, electrical, and process systems.
  • Working knowledge of safety programs, environmental compliance, and permit requirements.

Preferred

  • Experience in RNG or biogas specifically.
  • Understanding of biological processes behind anaerobic digestion.
  • Technical degree in Mechanical, Chemical, Electrical Engineering or similar.

What This Role Offers

  • Leadership of a critical clean-energy asset in one of the fastest-growing RNG markets in the United States.
  • Opportunity to shape operational excellence and asset performance across the portfolio.
  • Career progression within a rapidly scaling renewable energy organisation.