ESI Controls Engineer in Denver

Job Description

Controls Engineer

ENERGYneering Solutions Inc. ® (ESI), Trans Tech Company, provides exceptional technical expertise in engineering and operations for the biogas utilization and management industries. Since 2007, ESI has specialized in design, construction, and operations for biogas projects that collectively produce over one million MWh of renewable electricity and over 50 million gallons of renewable vehicle fuel every year. ESI is built upon the principle of providing our clients with unmatched experience, flexibility, and follow-through.

The Controls Engineer works closely with project engineers, project managers, and ESI’s O&M teams to provide industrial control system design for the company’s ongoing biogas utilization projects. The position requires implementing sound engineering principles to ensure project designs are at the industry’s cutting edge. An ability to work independently, self-motivate, and communicate effectively with team members is of the utmost importance to this position.

The Controls Engineer reports to the Controls Engineering Lead.

For mid-level applicants, this role is primarily in‑office in Sisters, OR (headquarters), with some remote flexibility. For senior‑level applicants, fully remote work may be available, with occasional visits to headquarters.

• Review Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs), electrical drawings, and operations manuals to ensure alignment with control system requirements.
• Design and develop instrumentation and control (I&C) specifications, control narratives, and cause‑and‑effect matrices to support safe, reliable, and efficient system operation.
• Specify measurement and analysis instrumentation and control components for automated industrial process control and plant safety.
• Perform PLC programming.
• Prepare and review UL panel drawings for fabrication.
• Participate in project HAZOP studies.
• Support the review and response to contractor RFIs.
• Support Field Service work with through remote and on‑site troubleshooting and optimization.
• Plan and participate in on‑site startup and commissioning activities.
• Interact with other engineering disciplines and departments throughout the company.
• Seek ways to improve and promote quality, demonstrating accuracy and thoroughness in all work.
• Other duties as assigned.

• This is a mid to senior‑level position requiring 7+ years of controls engineering experience in some of or all the following industries:
  Renewable Natural Gas and Biogas to Energy;
  Gas Processing;
  Chemical;
  Power;
  Waste Management;
  Environmental Air Quality Control Systems;
  Industrial Process Automation.
• Bachelor’s degree in Engineering or a similar technical field from an accredited university.
• Working knowledge of ISA, NFPA, UL, safety codes, fire codes, and other industry standards.
• Proficiency in process control instrumentation and common data communication protocols including Modbus and HART.
• Proficiency in PLC programming and data communication.
• Experience tuning control loops.
• Proficiency in Studio 5000 PLC programing software.
• Proficient with the Microsoft Office suite of software (Word, Excel, PowerPoint, etc.).
• Excellent verbal and written communication skills.
• Ability and willingness to travel up to 25%.

• Proficiency with Factory Talk (Rockwell Automation/Allen‑Bradley) and Ignition (Inductive Automation) software.
• Advanced optimization, troubleshooting, and/or process design skills in a process simulation package.
• Experience in process optimization, troubleshooting, and root cause analysis (RCA) in an energy or manufacturing environment.
• E.I.T. certification or ability to obtain certification within 6 months of hire.
• Proficiency in UL panel design.
• Experience with process metrics and reporting key performance indicators (KPI).

• Free HSA health plan or traditional PPO
• 401(k) with generous company match (Safe Harbor)
• Dental, vision, and optional coverage like accident & critical illness insurance
• HSA and FSA accounts to save on healthcare costs
• Company‑paid Life, Long Term, and AD&D…