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County Engineer Jobs in Delaware (NOW HIRING)

Traffic Engineer needed to join a dynamic team responsible for working with many clients including state agencies, county governments, and local municipalities, for the development of Traffic related ...

Environmental Engineer or (Geologist in Training) We are seeking a mid-level Environmental Engineer ... county of San Francisco, we will consider for employment qualified applicants with arrest and ...

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Showing results 1-20

County Engineer information

See Delaware salary details

$39K

$101.8K

$137.6K

How much do county engineer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for county engineer in Delaware is $101,840.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,100.00 and $116,600.00 per year, depending on experience, location, and employer.

How does a County Engineer typically collaborate with other county departments and external agencies?

County Engineers frequently work alongside other county departments—such as planning, public works, and environmental services—to coordinate infrastructure projects, ensure regulatory compliance, and address community needs. They also collaborate with external agencies, including state transportation departments, utility companies, and contractors, to manage permits, funding, and project timelines. Effective communication and teamwork are essential, as County Engineers often serve as technical advisors and project managers, ensuring that all stakeholders are aligned throughout the project lifecycle.

What are County Engineers?

County Engineers are licensed professional engineers who oversee the planning, design, construction, and maintenance of public infrastructure within a county, such as roads, bridges, drainage systems, and public buildings. They ensure that all projects comply with state and federal regulations, manage budgets, and often supervise staff and contractors. County Engineers also play a key role in developing long-term infrastructure plans and responding to emergency situations that impact public works. Their work is essential to maintaining safe and efficient transportation and public services for the community.

What is the difference between County Engineer vs Road Supervisor?

AspectCounty EngineerRoad Supervisor
Required credentialsEngineering degree, Professional Engineer (PE) licenseHigh school diploma or equivalent, relevant experience
Work environmentDesign, planning, project management, administrative tasksSupervising road crews, maintenance, and repair work
Employer and industry usageCounty government, public infrastructure projectsCounty or municipal public works departments

The County Engineer typically holds an engineering degree and PE license, focusing on planning, design, and overseeing infrastructure projects. In contrast, the Road Supervisor manages daily maintenance and supervises crews. While both roles work within public works, the County Engineer has a broader scope involving project management and engineering expertise, whereas the Road Supervisor concentrates on operational supervision.

What are the key skills and qualifications needed to thrive as a County Engineer, and why are they important?

To thrive as a County Engineer, you need a strong background in civil engineering, a bachelor's degree in engineering, and a Professional Engineer (PE) license. Experience with CAD software, GIS systems, project management tools, and knowledge of local, state, and federal regulations is typically required. Strong leadership, communication, and problem-solving skills help coordinate teams and interact with public officials and the community. These skills are essential for ensuring safe, efficient, and compliant infrastructure development and maintenance at the county level.
What are popular job titles related to County Engineer jobs in Delaware? For County Engineer jobs in Delaware, the most frequently searched job titles are:
What job categories do people searching County Engineer jobs in Delaware look for? The top searched job categories for County Engineer jobs in Delaware are:
Infographic showing various County Engineer job openings in Delaware as of July 2026, with employment types broken down into 82% Full Time, 16% Part Time, and 2% Temporary. Highlights an 97% In-person, and 3% Remote job distribution, with an average salary of $101,840 per year, or $49 per hour.
Graduate Traffic Engineer - Newark, DE

Graduate Traffic Engineer - Newark, DE

Pennoni

Newark, DE

$85K - $116K/yr

Full-time

Re-posted 28 days ago


Pennoni rating

9.1

Company rating: 9.1 out of 10

Based on 12 frontline employees who took The Breakroom Quiz

25th of 368 rated engineering


Job description

Job Description

Pennoni is hiring! Pennoni is looking for passionateGraduate Traffic Engineers to join our collaborative, fun team on a full time, direct basis inPennoni's Transportation Design Hublocated in ourNewark, DEofficewith experience consistent, but not limited to:

JobResponsibilities

  • Traffic Engineer needed to join a dynamic team responsible for working with many clients including state agencies, county governments, and local municipalities, for the development of Traffic related projects.
  • Assist with traffic engineering tasks ranging from traffic analysis, safety evaluations, and the preparation of traffic signal plans, signing and pavement marking plans, MOT / construction phasing plans, transportation management plans (TMPs), and lighting plans.
  • Assist with traffic study reviews from third parties for new developments and projects.
  • Passion for design, including MicroStation/OpenRoads (ORD) Modeling of transportation infrastructure projects.
  • Contribute to developing set of Transportation plans, including highway design, hydrology and drainage calculations and design, SWM and ES&C design; water and sanitary sewer utility layout.
  • Support projects / tasks of various sizes for a variety of clients (including state agencies, counties, and local municipalities.)

Preferred Attributes:

  • Established knowledge of civil engineering principles such as traffic analysis, traffic design, and development of geometric information.
  • Relevant experience with engineering software, including but not limited to MicroStation / OpenRoads (ORD), Synchro/SimTraffic, HCS, and Visual Lighting.
  • Experience and interest in working on various levels of engineering infrastructure projects in the Mid-Atlantic region.
  • Developing Maintenance of Traffic schemes, Construction Phasing and Traffic Control Plans
  • Licenses preferred: EIT
  • Familiarity with Bluebeam Revu (PDF editor) and/or GIS tools is a plus!
  • Organization and planning ability is a plus.
  • Construction consultation and utility coordination experience a plus

Required Attributes:

  • Bachelor's degree in civil engineering or a related discipline
  • 0-3 years of experience
  • E.I.T. is a plus!

Why Pennoni?

At Pennoni, we're not just another multi-disciplinary engineering firm; we're a vibrant team of innovators shaping the future! Founded more than six decades ago, Pennoni is an ENR Top 500 consulting engineering firm where individuality sparks innovation and growth. We're all about helping you build your career while fostering a great workplace culture - here, you'll work with supportive, talented teammates and find pride in your contributions. Join us to be part of a team that values your unique skills and drives excellence in every project!

Equal Opportunity Employer / Veterans / Disabled


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About Pennoni

Sourced by ZipRecruiter

Industry

Specialized design services

Company size

501 - 1,000 Employees

Headquarters location

Philadelphia, PA, US

Year founded

1966