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Added 1 min ago
Systems Engineering Manager
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Enerflex Ltd

Product Manager - Emission Abatement & Selective Catalytic Reduction Systems

Houston, TX, United States

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Job details

Experience: Experience: 5+ years of direct experience in the design, testing, and operation of SCR systems.
Posting language: English
Posted: Nov 2, 2026

Original job description

Summary

As the Product Manager for Emission Abatement & Selective Catalytic Reduction (SCR) Systems, you will serve as the primary technical authority on emissions control technologies for large-bore reciprocating internal combustion engines (RICE). You will lead the engineering specification, design, integration, optimization, troubleshooting, lifecycle support, and regulatory compliance strategies for emission control systems across Enerflex’s power generation team.

This role requires deep practical knowledge of Selective Catalytic Reduction (SCR), oxidation catalysts, three-way catalysts, ammonia slip catalysts, urea/DEF and ammonia dosing systems, emissions instrumentation, controls, and exhaust-system integration.

The SME will report to the Director of Power Generation and work across Product Development, Applications Engineering, Manufacturing, Commissioning, Service, suppliers, and customers to ensure emissions-abatement systems are technically sound, safe, reliable, manufacturable, serviceable, and capable of meeting project emissions requirements.

Principle Responsibilities and Duties

System Integration: Lead the scoping and integration of Emission Abatement equipment, primarily SCR systems, including catalyst modules, urea/ammonia dosing systems, and mixing ducts with natural gas reciprocating engines.
Collaborate with Applications and Product Development team to ensure products meet project requirements and quantify technical risks for Management Teams.
Performance Review: Review technology efficiencies, ammonia slip, and backpressure constraints to balance emissions performance with engine fuel efficiency. Review vendor proposals, calculations, P&IDs, general arrangements, equipment specifications, control narratives, and instrumentation requirements. Work with engine OEM data and project-specific operating profiles to identify technical risks before equipment release.
Design Criteria: Establish design criteria for pressure drop, catalyst face velocity, mixing, exhaust temperature, instrumentation locations, service access, and catalyst replacement. Evaluate emissions-system operation across the engine's full operating envelope, including startup, shutdown, load changes and turndown.
Fluid Dynamics & Thermal Analysis: Review Computational Fluid Dynamics (CFD) and thermal modeling, performed by sub vendors, to ensure uniform reductant mixing and temperature distribution.
Simpler Systems: Advise and review proposed designs from sub vendors for 3-way catalyst, oxidation catalyst, and stack / ducting design for pressure drop.
In House Testing: Develop best practices, review and develop testing procedures for technicians, and assist in procurement of testing instruments to validate shop unit testing. Liaison with 3rd party testing companies as needed. Develop requirements for instrument calibration, sampling location, sample conditioning, test stabilization, data recording, and test reporting.
Root Cause Analysis: Liaison with sub vendors to diagnose complex field failures, including catalyst poisoning (e.g., from sulfur or lube oil), masking, thermal degradation, and dosing system malfunctions. Interpret collected data to distinguish between engine-related, dosing-related, catalyst-related, controls-related, instrumentation-related, and exhaust-distribution problems.
Commissioning Support: Provide high-level technical guidance during the commissioning and testing of new emissions control installations, generally within the Company’s Shop. Provide Remote field support for Enerflex service technicians. Help establish company best practices and procedures for initial startup and commissioning of emissions-control systems. Contribute to the development of commissioning checklists, acceptance criteria, troubleshooting guides, and technician procedures. Assist in troubleshooting when installed system performance does not meet design or permit requirements. Capture field lessons learned and translate them into improved designs, specifications, and commissioning practices.
Regulatory Navigation: Maintain expert-level knowledge of global emissions standards (e.g., EPA Tier 4, IMO Tier III, Stage V) to guide product development and client compliance.
Technology Roadmap: Support Product Development by evaluating emerging catalyst materials, control algorithms, and alternative reductants to keep the company's product portfolio competitive.Scoping Roadmap: Enhance Application Departments capabilities to obtain quality initial designs for best fit abatement solutions.

Qualifications

Degree: Bachelor’s or Master’s degree in Mechanical, Chemical, or Environmental Engineering.
Experience: 5+ years of direct experience in the design, testing, and operation of SCR systems.
Domain Focus: Proven expertise specifically with reciprocating engines, understanding their unique exhaust flow pulsations, temperature profiles, and transient behaviors.
Understanding of catalyst chemistry (e.g., Vanadium-Tungsten, Zeolite) and chemical reactions involved in NOx reduction.
Understanding of reductant fluid dynamics (urea decomposition, pyrolysis risk management, and spray crystallization prevention).
Familiarity with engine control units (ECUs), closed-loop emissions control logic, and NOx/NH3 sensor integration.
Experience with related emissions components like Diesel Particulate Filters (DPF) and Oxidation Catalysts (Ox-Cat).
Strong communication skills to translate complex chemical and mechanical concepts for clients, sales teams, and field technicians.

Physical Requirements

Fast-paced general office environment. Many tasks have high degrees of time sensitivity. Domestic and international travel is possible on occasion.

About Us:

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.

Enerflex places its core Values of Integrity, Commitment, Creativity, and Success into action across all aspects of the business. 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 foster a culture of ensuring our employees have the tools to do their jobs right, but to also thrive in their roles. 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.

What Enerflex Offers You:

Full time employees enjoy the following benefits:

Generous healthcare, dental and vision plans
401(k) employer matching
Generous paid time off program
Employee equity plan
Tuition reimbursement
Fun office environment

Enerflex is an Equal Opportunity Employer

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. Equal employment opportunities are provided in recruitment, hiring, promotions, wages, benefits, and other terms, conditions, and privileges of employment.

Disclaimer

The above statements are intended to describe the general nature and level of work being performed by people assigned to this job. They are not intended to be an exhaustive list of all responsibilities, tasks, duties, knowledge, skills, and abilities required.

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