Commercial Modeling Jobs in Riverside, CA (NOW HIRING)

Harris Miller Miller & Hanson Inc. (HMMH) is a trusted leader in the study, assessment, and mitigation of environmental impacts from major infrastructure projects. Since 1981, we have supported government and private sector clients across aviation, highway, rail, transit, industrial, energy, construction, and military sectors. HMMH is nationally recognized for its expertise in noise and vibration analysis.

HMMH is seeking a Staff Consultant to join our Surface Transportation Group in a hybrid role based out of one of our six office locations.

The Staff Consultant will contribute to technical analyses, field measurements, and report preparation for transportation noise and vibration projects. This position involves regular use of modeling and measurement tools, independent completion of assigned technical tasks, and collaboration with project managers and senior technical staff. The ideal candidate will demonstrate strong technical proficiency, attention to detail, and a desire to expand skills and responsibilities over time.

Key Responsibilities

• Conduct noise measurement tasks independently and support vibration measurement projects.
• Perform analyses using FHWA’s Traffic Noise Model (TNM) and assist with barrier analyses and impact assessments.
• Develop TNM objects and mapping outputs using ArcGIS; prepare figures and graphics for reports.
• Apply FTA noise and vibration prediction methods with guidance from senior staff.
• Support use of commercial noise modeling software such as SoundPLAN under supervision.
• Assist with air quality modeling using MOVES or AERMOD with guidance.
• Lead assigned tasks within larger projects, completing work accurately, on time, and within scope.
• Contribute to technical reports, ensuring clear documentation and sound technical justification.
• Communicate effectively with project managers, peers, and occasionally clients on technical matters.
• Contribute to proposal development with guidance from senior staff.
• Support innovation and continuous improvement in technical methods, tools, and workflows.
• Other duties as required.

Minimum Qualifications

• Bachelor’s degree or higher in acoustics, engineering, physics, environmental science, or a related field.
• 2–6 years of experience in transportation noise and vibration analysis or related environmental work.
• Willingness and ability to travel nationally for client meetings and fieldwork, up to 15% of the time.
• Strong analytical, quantitative, and defined tasks and collaborate effectively in a team environment.
• Ability to work independently on defined tasks and collaborate effectively in a team environment.

Preferred Qualifications

• Proficiency with FHWA’s TNM and ArcGIS.
• Experience with FTA noise and vibration prediction methods.
• Familiarity with SoundPLAN or similar commercial modeling software.
• Exposure to air quality models such as MOVES or AERMOD.
• Knowledge of NEPA and related environmental regulatory processes.
• Experience with data management, coding, or GIS-based automation tools.
• Involvement in professional associations such as INCE, TRB, or NAEP.
• Experience conducting noise measurements and familiarity with vibration measurement techniques.

Physical Requirements: 

• Must be able to lift up to 40 lbs., overhead, regularly while conducting field measurements 
• Frequent travel within the local area is required, with occasional trips to other parts of the United States.
• This position requires working in the field outside with multiple weather elements.

Location:  

Hybrid out of one of our following office locations:

• Burlington, MA
• New York, NY
• Washington, D.C.
• Dallas, TX
• San Diego, CA
• Anaheim, CA

HMMH offers competitive salaries, a comprehensive benefits package, and a positive work atmosphere. Our firm provides opportunities for professional development and career growth for dedicated and strong performers. HMMH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, national origin, veteran status, genetic information, or any other status protected by applicable law. HMMH is committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities and other protected needs in employment, its services, programs, and activities. To request reasonable accommodation, contact us through our website at https://hmmh.com/contact/.