Senior Commissioning Engineer I

Senior Commissioning Engineer I Mortenson Construction paid time off, tuition reimbursement, 401(k), retirement plan United States, Louisiana, Rayville May 19, 2026 SUMMARY Mortenson is currently seeking a Senior Commissioning Engineer I that will be responsible for performing commissioning assignments requiring basic engineering principles in a construction environment, focusing on successful commissioning and completing specific tasks using prescribed methods.

RESPONSIBILITIES

Reviewing owner project requirements Supporting scope reviews Developing commissioning specifications Creating commissioning plans, checklists, and tests for basic systems Performing field visits and observing commissioning inspections and tests Developing working relationships with contractors and assisting in resolving commissioning issues observed during testing Writing issue descriptions, field reports, and final reports Creating Systems Manuals Effectively working and building relationships with individuals of diverse backgrounds and organizational levels Supporting planning and execution of system tests, including but not limited to NETA, SCADA, controls, and operations verification of mechanical, electrical, fire protection, and life safety systems Performing all other duties as assigned

QUALIFICATIONS

Bachelor's degree in Construction, Civil, Architectural, Mechanical, or Electrical Engineering, or equivalent field experience Minimum four years of construction management or commissioning experience, preferably with an MEP Contractor or Commissioning firm Solid understanding of commissioning processes, construction documents, and their relationship to QA/QC and project management Intermediate-level skills in Microsoft Office and data-based commissioning tools such as BIM360 or Cx Alloy Positive and professional attitude with strong customer service skills Effective communication and active listening skills, including openness to diverse input and feedback Ability to travel up to 75% A few benefits offered include: (for Non-Craft & Non-Union Craft working 25+ hours / week) Medical and prescription drug plans that includes no additional cost vision coverage Dental plan 401k retirement plan with a generous Mortenson match Paid time off, holidays, and other paid leaves Employer paid Life, AD&D, and disability insurance No-Cost mental health tool and conciergewith extensive work-life resources Tuition reimbursement Adoption Assistance Gym Membership Discount Program The base pay range for this role is $102,000 MIN

• $137,700 MAX. (Actual range is higher for the following office locations: Denver, CO and Chicago, IL
• 5%, Seattle, WA, and Portland, OR
• 10%, Washington, D.C.
• 12.

5%). Base pay is positioned within the range based on several factors including an individual's knowledge, skills, and experience, with consideration given to internal equity. This position is eligible for Mortenson's incentive plan. #LI-EH1 #LI-onsite Visa sponsorship is not offered for this position. Our postings are typically open a minimum of 5 days and an average of 44 days.

ABOUT MORTENSON

As a top builder, developer, and EPC (Engineering, Procurement, and Construction), our expertise spans markets like sports, renewable energy, data centers, healthcare, and more. We are builders at heart, working to ensure the built environment has a lasting positive impact. Let's Redefine Possible Equal Employment Opportunity Your uniqueness brings new and creative perspectives to the team. Mortenson is committed to providing equal opportunities of employment (EOE) to all individuals, regardless of your race, religion, gender, national origin, age, veteran status, disability, marital status or any other legally protected category. Mortenson reserves the right to hire any individual without legal or financial obligation on unwanted solicitations.

No agency emails, calls, or solicitations are accepted without a valid agreement. Must be currently legally authorized to work in the U.S. without sponsorship for employment visa status (e.g., H1B status, 0-1, TN, CPT, OPT, etc.). We are unable to sponsor or take over sponsorship of an employment Visa at this time.