Technical Services Engineer (TSE) I

ENFRA

Creve Coeur, MO Posted October 23, 2026

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On-site Full-time Senior
Job Description

About Us

At ENFRA, we blend a rich history with a forward-looking vision. With over 100 years of experience, we are a pillar of stability in the energy infrastructure industry and a leader in innovative energy solutions. Our commitment to leveraging emerging technologies ensures that we remain at the forefront of the Energy-as-a-Service sector.

We believe in growth—not just for our business, but for our people. Our team members have the opportunity to advance their careers in a supportive environment that values continuous learning and development. We embrace innovation and encourage creative problem solving to tackle the energy infrastructure and energy challenges of tomorrow.

Inclusion is at the heart of our culture. We strive to create a workplace where every voice is heard and valued, fostering a collaborative environment where diverse perspectives drive our success. Join us to be part of a legacy of excellence and a future of groundbreaking advancements.

At ENFRA, stability, innovation, and growth are more than just values—they are the pillars of our continued success.

Overview

Purpose and Essential Duties: SummaryThe Technical Services Engineer (TSE) is a technical resource supporting Energy-as-a-Service (EaaS) projects. The TSE provides technical expertise and direction in the development and successful implementation of energy conservation measures for retro-commissioning (RCx) activities.

Projects typically involve complex, multi-building and multi-campus portfolios within higher education and healthcare environments, and are characterized by substantial mechanical infrastructure and advanced, integrated control strategies. The role provides technical expertise across all phases of the commissioning (Cx) process and collaborates with the engineer of record to optimize system performance and develop practical solutions. Additionally, the TSE supports the training and mentorship of Technical Services (TS) staff.

This role works in close collaboration with project managers, energy managers and team managers to ensure successful delivery of energy and operational performance outcomes. A TSE brings deep expertise in MEP design and the implementation of energy conservation measures, with a strong focus on building automation and energy management systems. They must uphold and promote the ENFRA brand by guaranteeing excellence in the execution of work and ensuring positive client experience, performing assigned duties with minimal supervision while working in a team problem-solving environment.

This role requires technical expertise in HVAC systems, building automation systems, and energy conservation strategies, with the ability to analyze complex system interactions and drive issue resolution across multidisciplinary teams. The ideal candidate demonstrates knowledge of the commissioning process, energy optimization methodologies, and industry standard best practices, while maintaining a strong focus on execution quality, documentation, and continuous improvement.

Responsibilities

Specific responsibilities include:

Provides technical assistance to pre-engineering teams during data collection surveys Coordinates site surveys to determine existing facility conditions and the requirements to complete the scope of work Develop energy conservation strategies to execute the project scope of work related to retro-commissioning Assists design teams with the integration of energy conservation strategies to ensure a comprehensive approach to energy management Reviews Requests for Proposals (RFPs) for equipment and services procurement to ensure project outcomes are accounted for Assists the project team with the review of critical equipment and system submittals for conformance Conducts commissioning reviews and occasional peer reviews of design documents.

Troubleshoots equipment/system installation and setup problems and assists in the optimization of complex equipment/system upgrades Completes technical reports and supports the development of new tools supporting project execution Upholds and promotes the ENFRA brand by guaranteeing excellence in work execution Qualifications Required Education, Experience, and Qualifications:

Education

Bachelor’s degree in engineering Qualifications: 5+ years of experience in engineering design, energy management, or retro commissioning Professional Engineering (PE) license Demonstrated ability to problem solve and analyze complex systems Strong multitasking abilities and competence performing duties outside of the immediate scope of work when necessary Detail-oriented with strong verbal and written communication skills Preferred Education, Experience, and Qualifications:

Commissioning Certification from ACG, BCxA, or ASHRAE Certified Energy Manager (CEM) Project experience in healthcare and higher education settings Chilled Water, Heating Water, Steam, and Tower Water system project experience Project experience with hydronic system distribution, including centralized and multi-plant system configurations Building automation, controls, and systems integration project experience Experience with AutoCAD and REVIT software Travel Requirements: 30%-40% of time will be spent traveling to job site(s)/office location.

Physical/Work Environment Requirements

Physical Activities:

Assessing the accuracy, neatness, and thoroughness of the work assigned Ascending and descending ladders, stairs, scaffolding, ramps, poles Climbing stairs Moving about to accomplish tasks or moving from one worksite to another Repeating motions that may include the wrists, hands and/or fingers Environmental Conditions:

Outdoor elements such as precipitation and wind Noisy environment Quiet environment Physical Demands:

  • Medium work that includes adjusting and/or moving objects up to 50 pounds Pay Range USD $101,610.00 - USD $135,645.00 /Yr.
  • ENFRA is proud to be an Equal Opportunity Employer of Minorities, Women, Protected Veterans, and Individuals with Disabilities, and participates in the e-Verify program.
  • All qualified applicants will receive consideration for employment without regard to race, creed, color, religion, sex, age, sexual orientation, gender identity, national origin, veteran status, disability, or any other classification protected by law.
Required Skills
learning and development problem solving collaboration mentoring TypeScript HVAC process improvement procurement troubleshooting private equity attention to detail written communication AutoCAD Revit
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