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ESI Controls Engineer

ESI
Denver, CO Full Time
POSTED ON 7/28/2026
AVAILABLE BEFORE 8/26/2026
Controls Engineer

Company Overview

ENERGYneering Solutions Inc. ® (ESI), TransTech 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.

Job Overview

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.

Reports To

The Controls Engineer reports to the Controls Engineering Lead.

Location

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.

Responsibilities and Duties

  • 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.

Minimum Qualifications

  • 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%.

Preferred Qualifications

  • Proficiency with FactoryTalk (Rockwell Automation/Allen‑Bradley) and Ignition (Inductive Automation) software.
  • Advanced optimization, trouble shooting, 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).

Benefits Designed To Work For You

  • 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 Disability, and AD&D insurance
  • Confidential support for mental health, family matters, legal concerns, and more through our Employee Assistance Program
  • Discounts on gyms, shopping & entertainment
  • Health benefits kick in fast – first of the month after 30 days

Time Off

  • We offer a variety of paid time off options to support rest, wellness, and personal needs:
  • Unlimited Paid Time Off
  • Paid Holidays
  • Bereavement Leave

ESI employees value pride of ownership, a limitless desire to learn, and a relentless approach to solving any challenge. A successful ESI employee not only embraces these values but knows when to lean on the team for support and guidance. We acknowledge that our fast-paced and dynamic environment is not for everyone, but if you are looking for independence and new challenges, ESI will be a great fit.

This organization provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

#ESI

Salary : $120,000 - $150,000

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