Mid-level Civil Design Engineer

LJB Inc.; South Portland (ME); On-site; USD 85,000 - 140,000; Full time

Job summary

LJB Engineering, a national multi-disciplinary firm, seeks a Mid-level Design Engineer for its South Portland, Maine office. The candidate will develop designs, coordinate with clients, and mentor junior staff in a collaborative, independent setting.

Requirements include a Civil Engineering degree and PE licensure, with 4–9 years of relevant experience. The role supports design‑bid‑build and design‑build projects and offers growth across multiple lines of engineering.

Qualifications

• Bachelor’s degree in Civil Engineering and PE license required
• 4–9 years of relevant engineering design experience

Responsibilities

• 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.

Skills

Engineering design

Cost estimating

Client coordination

Project scheduling

Mentorship

Design-bid-build

Design-build

Education

Bachelor's degree in Civil Engineering

Professional Engineer license (PE)

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.

Job Overview

We are currently seeking a candidate to fill a full‑time Mid‑Level Design Engineer position in South Portland, Maine. 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

• 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