Engineering Technician II - Materials Lab​/Construction Projects

The St. Louis County Government Department of Transportation and Public Works is looking for Engineering Technicians to join their team. If you are looking for the opportunity to work outside in a job with stable, consistent work and allows for the development of construction skills, this would be the job.

There are openings to work in the Materials Lab and on roadway construction projects. In the Materials Lab, the Technician will perform construction material testing in the laboratory and on construction sites and ensure materials adhere to plans, standards and regulations. The positions assigned to construction projects will perform inspections of roadway construction sites, investigate existing roads and bridges and complete field and laboratory testing to assist higher‑level engineering staff.

Each snow season Department employees that are required (as defined by their job description) to work snow will receive a $6 per hour increase when they report for emergency snow removal services.

The starting salary for this position will be between $21.49 – $25.79 per hour and will be based on experience and qualifications. For internal candidates, pay will be determined per Departmental policy. As an employer, St. Louis County cares about the health and well‑being of our employees. In an effort to provide for the best possible work‑life balance, the County offers a generous benefit package which includes affordable health insurance, dental and vision coverage, 4 weeks of Paid Time Off the first year, 11 paid holidays, deferred benefit retirement plan, paid life insurance as well as short and long term disability.

To learn more County benefits, please visit (Use the "Apply for this Job" box below)..

St. Louis County Government is a qualified agency for the Public Service Loan Forgiveness program managed by the Federal Government. For more information regarding this program, please visit .

• Perform laboratory and on‑site construction materials testing and inspection, in accordance with approved standards like the American Association of State Highway and Transportation Officials (AASHTO) and American Society for Testing and Materials (ASTM), using specialized test equipment.
• Conduct investigative core drilling of pavement.
• Ensure materials used in County roads and bridges comply with Federal, State, County and local regulations.
• Maintain appropriate American Concrete Institute (ACI) and Missouri Department of Transportation (MoDOT) Certifications to comply with State and Federal program requirements.
• Resolve issues with material producers and contractors.
• Perform proficiency testing for MoDOT and participate in the AASHTO onsite inspections.
• Monitor construction material production for adherence to plans, drawings, standards and regulations.
• Track and report testing and inspection of embankment placement, aggregate base and structural backfill, hot mix asphalt production and plastic concrete used on‑site for road and pre‑cast and cast‑in‑place structure construction.
• Operate a density testing device for determination of compaction of soil, aggregate base and hot mix asphalt.
• Perform other duties as assigned, including duties assigned during mandatory snow shift.

• Conduct inspections of roadway construction sites to ensure compliance with construction specifications, plans and procedures.
• Perform a variety of routine field and laboratory testing procedures on construction materials to ensure conformance with specifications.
• Maintain required materials testing certifications.
• Perform field investigations of existing roads and bridges to collect data required for future construction projects.
• Review construction plans, standard specifications and construction contract documents.
• Complete safety checks of work sites and observe work in progress for compliance with established work procedures.
• Perform other duties as assigned, including duties assigned during mandatory snow shift.

Candidates should possess…