JOB DETAILS

Transportation Engineer III

CompanyRETTEW
LocationMechanicsburg
Work ModeOn Site
PostedApril 24, 2026
About The Company
RETTEW brings our clients’ goals and dreams to life on time and on budget, with an emphasis on quality and safety. Our expertise is wide and varied: We offer close to 600 engineering, environmental, surveying, planning, safety, and related consulting services in a range of markets. Spanning so many disciplines allows us to connect all the dots, to see how every piece of a project affects the other. We strive to completely understand your vision for your project—and for your business as a whole—and then we get to work. This big-picture understanding allows us to anticipate your needs and stay ahead of emerging trends. Our innovative approach means discovering solutions that may not have been thought of before—and finding more effective, efficient ways to put them into action. RETTEW’s corporate culture provides a warm and welcoming work environment where employees can thrive, grow, and make a difference in their company and community. This positive atmosphere—and commitment to safety and excellence—contributes to our success in the field. Our goal is not simply satisfaction; it’s delight.
About the Role

Description

RETTEW is seeking a Transportation Engineer 3 to join our growing Transportation Team. In this role, you will take on increasingly complex roadway and traffic design projects while contributing to solutions that improve how people and goods move through our communities.


RETTEW is a 100% employee-owned engineering consulting firm delivering multidisciplinary solutions across transportation, energy, water and wastewater, environmental, and land development. We bring our clients’ goals to life through technical expertise, strong relationships, and a commitment to quality. Guided by our core values, Act Like an Owner, Value Relationships, and Exemplify Excellence, we invest in our people and the communities we serve.


Work Environment: Hybrid

Locations: State College, Mechanicsburg, or Williamsport, PA


Position Summary:

As a Transportation Engineer 3, you will perform and support moderately complex engineering design tasks, contribute to project delivery, and collaborate with multidisciplinary teams. You will apply sound engineering judgment, support project coordination, and begin guiding junior staff while continuing to grow technically and professionally.


Responsibilities:

  • Develop roadway, traffic, and transportation design plans using engineering software and CAD tools
  • Prepare portions of plans, specifications, reports, and permit applications
  • Conduct field investigations and support construction observation activities
  • Analyze data and apply engineering principles to develop practical design solutions
  • Collaborate with project managers on schedules, budgets, and deliverables
  • Support proposal development and assist with scopes of work
  • Coordinate with internal teams, clients, and stakeholders on project tasks
  • Provide guidance to junior staff and contribute to team development


Qualifications:


Required:

  • Bachelor’s degree in Civil Engineering or related field
  • Minimum 4+ years of relevant experience, including internships
  • Strong understanding of transportation or roadway design principles
  • Experience with design software such as MicroStation, OpenRoads, or AutoCAD
  • Ability to manage tasks, meet deadlines, and work within project budgets
  • Strong communication and collaboration skills


Preferred:

  • Engineer-in-Training (EIT) certification
  • Experience with PennDOT, municipal, or state transportation projects
  • Progression toward Professional Engineer (PE) license
  • Experience mentoring or supporting junior staff


What We Offer:

  • Competitive salary based on experience. RETTEW offers an Employee Stock Ownership Plan (ESOP), giving you a real stake in the company’s success and long-term value.
  • Comprehensive benefits including medical, dental, vision, and retirement savings options.
  • Opportunities to grow your career through hands-on project experience, exposure to a variety of transportation projects, and collaboration with experienced engineers and project managers.
  • Support from our in-house training and development team, offering structured professional development, mentorship, and continuously evolving resources designed to help you build expertise and grow your career.
  • A flexible, hybrid work environment that supports both productivity and work-life balance.
  • A culture where your work is visible and valued, you are trusted with real responsibility, and your contributions directly impact project outcomes and client success.
  • A collaborative, team-oriented environment where you can continue building technical skills without being siloed.


RETTEW is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, veteran status, genetic information, or any other characteristic protected by applicable law.


If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, please contact us at jperalta@rettew.com

to request assistance.


#LI-Hybrid

Requirements

Requirements listed above.

Key Skills
Roadway DesignTraffic DesignEngineering SoftwareCAD ToolsMicroStationOpenRoadsAutoCADData AnalysisProject CoordinationProposal DevelopmentStakeholder CoordinationStaff GuidanceField InvestigationsConstruction Observation
Categories
EngineeringTransportationConsultingConstruction
Benefits
Employee Stock Ownership PlanMedical InsuranceDental InsuranceVision InsuranceRetirement Savings Options
Job Information
📋Core Responsibilities
The Transportation Engineer III will perform and support moderately complex engineering design tasks for roadway and traffic projects, contributing to project delivery and collaborating with multidisciplinary teams. Responsibilities include developing design plans, preparing specifications and reports, conducting field investigations, and providing guidance to junior staff.
📋Job Type
full time
📊Experience Level
2-5
💼Company Size
318
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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