Senior Process Engineer, Energy

Reporting to the Engineering Manager, the Senior Process Engineer is responsible for water-related process studies, preparation of process flow diagrams, design and engineering involving simulations, design calculations, equipment sizing, Start-up, commissioning and troubleshooting. The Senior Process Engineer brings extensive experience in produced water treatment operations within the oil and gas industry.

This position will be based at our Calgary Water Solutions location.

Understand client requirements and specifications for water treatment packages.

Have a good understanding of major primary, secondary and tertiary-produced water treatment systems such as; flotation, oil-water separation, de-oiling, skimming, filtration, and softening.

Familiarity with the industrial water treatment systems.

Knowledge of working principles of various chemicals utilized in the water treatment industry.

Preparation of Technical Proposals and support preparation of RFQs.

Simulation studies for standard products and packages using HYSYS and Flow Simulation software.

Development of Design Basis, PFD, Material balance, and P&IDs.

Prepare process descriptions, control narratives, safeguarding narratives, and operating manuals.

line sizing, equipment sizing, gas consumption calculations, pump hydraulics and preparation of related equipment and instrument data sheets.

Support the Project Manager, proposals and project engineering team on all technical requirements for assigned projects.

Interdisciplinary support to Static, Instrumentation, Electrical, Rotary and Quality Assurance teams.

Ensure the deliverables provided to the project are technically accurate, within scope, and in compliance with quality procedures and project plans.

Support R&D activities in the shop, collect data, and observations, analyze lab results, and prepare a technical report for the tests.

Preparation of plant operating manual.

Troubleshooting and field support during the commissioning phase.

Bachelor’s degree in Chemical Engineering and Professional Engineer (P.designation with APEGA or an equivalent professional engineering association.

• 12+ years of progressive process engineering experience, preferably within the oil and gas or water treatment industry.
• Hands-on experience with produced water treatment systems, including design, commissioning, and/or operational support.
• Strong technical knowledge across multiple engineering disciplines and a solid understanding of interdisciplinary project execution.
• Results-driven with a strong focus on quality, safety, and project delivery.
• Strong organizational skills with the ability to manage multiple projects simultaneously.
• Willingness and ability to travel internationally, including visits to client and project sites.
• Demonstrated ability to identify opportunities for process improvements and recommend practical solutions.
• Experienced in preparing technical reports, engineering studies, and scopes of work.
• Proficient in Microsoft Office Suite and industry-standard engineering software.
• Ability to work closely with project teams to define and achieve project objectives.
• Innovative mindset with a passion for continuous improvement and new product development.

Transforming Energy for a Sustainable Future. Enerflex is a premier integrated global provider of energy infrastructure solutions, covering gas processing, compression, power generation, refrigeration, cryogenic, energy transition, and water solutions. We proudly employ more than 5,000 highly skilled employees across over 25 countries worldwide.

Our innovation, strong commitment to safety, and superior service to our customers positions us as the optimal partner to meet the needs of the dynamic energy industry.

We pride ourselves in our competitive wages, extensive rewards programs, celebration of successes of individuals and teams, and are committed to ensuring Enerflex remains a safe and inclusive space for all.

Collaborative in office work environment, supportive team members

Enerflex grants equal employment opportunity to all qualified persons without regard to race, color, sex, age, national origin, religion, genetic information, mental or physical disability, or any other characteristic protected by applicable federal, state, or local law.