Associate Engineer (Traffic) | OC

Make a difference with your change – lead with ingenuity!

KOA Corporation (KOA), a Lochner Company, is a leading provider in professional services in transportation, engineering, mobility planning, and construction management for public agencies and private sector clients. Our staff includes registered civil and traffic professional engineers, certified transportation planners, certified road safety professionals, project/construction managers, and construction inspectors.

In December 2022, KOA joined Lochner, a national transportation infrastructure firm headquartered in Chicago, Illinois, providing planning, environmental, design, construction engineering and inspection, and right-of-way services for surface transportation, rail, transit, and aviation clients. Together, we have more resources and capabilities for delivering innovative solutions and enhancing the quality of life in the communities we serve.

  • Client-Focused: We are collaborative and attentive to the unique needs and goals of each project.

  • Performance-Driven: We are problem solvers dedicated to transforming transportation infrastructure challenges into opportunities for innovation.

  • Community-Minded: We are vested in the work we do as stewards of public funds used to improve the communities we serve.

  • Socially Responsible: We give back to our communities by supporting various charitable organizations and causes.

  • Growth Oriented: We invest in programs to attract, retain, and develop employees so KOA becomes a long-term home for top talent.

Our goals and strategies promote a diverse and inclusive workforce that feels empowered to make a difference in the world. Our vision is to create healthy and sustainable communities both within and outside of our organization, where current and future generations can thrive.

Are you ready to join us?


  • Assist in designing and planning of Intelligent Transportation Systems (ITS) projects

  • Collect and analyze traffic and ITS related data

  • Collaborate with project managers and other engineers to ensure project delivery on time and within budget

  • Has worked on the development and implementation of traffic control plans, signing and marking plans, Traffic signal design plans, signal timing plans and Fiber Optic/ITS design plans

  • May participate in field inspections and testing to ensure compliance with design specifications

  • Keep up to date with latest technologies, innovations and industry best practices in the field of Traffic/ITS engineering


  • Bachelor’s degree in Civil or Electrical Engineering or related field

  • 5+ years of experience in Traffic especially in ITS engineering

  • Knowledge of ITS related designing is strongly preferred

  • Familiarity with Synchro, etc.)

  • Strong analytical and problem-solving skills

  • Excellent written and verbal communication skills

  • Ability to work in a fast-paced environment and manage multiple tasks simultaneously

  • A valid driver’s license and ability to travel for field inspections

The salary range for this position is between $90,000 and $105,000 per annum, based on experience and qualifications.