Transportation Engineer III

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.

Hybrid

State College, Mechanicsburg, or Williamsport, PA

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.

• 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

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 Micro Station, Open Roads, 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

• 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 require a reasonable accommodation to complete any part of the application process, please contact us at  to request assistance.