Mid-level Civil Design Engineer

LJB Inc.; Miamisburg (OH); On-site; USD 85,000 - 140,000; Full time

Job summary

LJB Inc. in Dayton, Ohio, is seeking a Mid-Level Design Engineer to join our national engineering practice.

The candidate will develop designs from concept to final delivery, coordinate with clients and project managers, and mentor junior engineers on design and construction planning. Qualified applicants hold a Civil Engineering degree, a PE license, and 4–9 years of design experience, with proficiency in AutoCAD Civil 3D.

Qualifications

• Bachelor’s degree in Civil Engineering is required.
• Professional Engineer (PE) license is required.
• 4–9 years of relevant engineering design experience is expected.

Responsibilities

• Develop engineering designs from concept through final design.
• Prepare specifications, cost estimates, and final bid packages.
• Coordinate with client staff and project managers throughout project delivery.
• Support both design-bid-build and design-build projects.

Skills

Engineering design

Cost estimating

Client coordination

Project scheduling

Mentorship

Team collaboration

Education

Bachelor’s degree in Civil Engineering

Professional Engineer (PE) license

Tools

AutoCAD Civil 3D

Job description

Brief Description LJB Engineering is a national, multi-disciplinary engineering consulting firm with multiple business lines including Transportation, Water Resources, Geospatial and Site Design, Buildings Structure Design and Safety/Fall Protection Design/Installation. Our diverse expertise, client base, and geographies have enabled LJB to serve clients in all 50 U.S. states and several countries.

We are currently seeking a candidate to fill a full-time Mid-Level Design Engineer position in Dayton, Ohio. The successful candidate will possess a can-do attitude, have a passion for and take pride in their work, be a creative thinker, and have a willingness to collaborate while having the ability to work independently.

Salary Range

$85,000 – $140,000 based upon experience, certifications, and regional market standards.

Benefits

View our 2026 Benefits Summary

Mid-level Design Engineer Essential Functions

• Develop engineering designs for projects from preliminary concepts through final design.
• Prepare specifications, cost estimates, and final bid packages.
• Coordinate with client technical staff and project managers throughout project delivery.
• Support both design-bid-build and design-build project execution.
• Mentor junior engineers in the development of final design and construction plans.
• Coordinate design activities and meetings among design staff, subcontractors, and client managers.
• Contribute to project decisions related to technical approaches, cost, and schedule performance.
• Participate in professional organizations and industry-related activities.
• Other duties as assigned.

Required Qualifications

MID-LEVEL DESIGN ENGINEER ESSENTIAL CREDENTIALS:

• Bachelor’s degree in Civil Engineering
• Professional Engineer (PE) license
• 4–9 years of relevant engineering design experience

Preferred Qualifications

• Experience working with state or local DOTs
• Proficiency with AutoCAD Civil 3D

Core Skills

• Engineering design and plan development
• Specifications and cost estimating
• Client and stakeholder coordination
• Project scheduling and technical decision-making
• Mentorship and team collaboration
• Design-bid-build and design-build project support

Why Join LJB?

This role offers the opportunity to contribute to meaningful infrastructure and site design projects while working alongside a multidisciplinary team with broad technical expertise.

LJB Inc. is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to creating a diverse and inclusive workplace where all employees are valued, respected, and have the opportunity to succeed. Employment decisions are based on qualifications, merit, and business needs, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, genetic information, marital status or any other protected status under applicable law. If you are a self-starting individual who wishes to join an established team that believes in excellence in the workplace, this opportunity is for you.

Keywords

Mid-Level Design Engineer, Civil Engineer, Professional Engineer, PE, AutoCAD Civil 3D, Land Development, Site Design