Senior Structural Bridge Engineer

LJB Inc.; South Portland (ME); On-site; USD 128,000 - 185,000; Full time

Job summary

LJB Inc. is seeking an experienced Senior Structural Bridge Engineer in South Portland, Maine to lead design efforts for major transportation projects. You will collaborate with DOT staff and clients, oversee budgets and schedules, and mentor junior engineers.

Based in our growing Transportation Practice, this role offers opportunities to shape infrastructure across Maine and the country, with a focus on safe, efficient, and resilient bridge solutions.

Qualifications

• Bachelor's degree in civil engineering with a Structural emphasis.
• P.E. license.
• 10+ years of bridge/culvert design experience.
• DOT bridge design experience and knowledge of DOT guidelines (ODOT, NCDOT or MaineDOT preferred).
• Thorough knowledge of AASHTO LRFD Bridge Design Specifications and Manual for Bridge Evaluation.

Responsibilities

• Perform engineering design tasks for bridge projects from preliminary to final design.
• Develop specifications, cost estimates, and prepare final bid packages.
• Mentor and assist junior engineers in developing final design plans.
• Coordinate design activities and meetings between design staff, subcontractors, and client managers.
• Identify schedule and cost variances and develop corrective actions.
• Lead project decisions on methods, cost, and scheduling; participate in multi-discipline teams.

Skills

Bridge design experience

DOT coordination

AASHTO LRFD knowledge

Leadership in professional orgs

Education

B.S. in civil engineering (structural emphasis)

P.E. license

M.S. degree (preferred)

Job description

Description Join a Growing National Engineering Firm Shaping the Future of Infrastructure!As a growing, forward-thinking firm, LJB Inc. is expanding our impact across the country by delivering innovative, community-focused engineering solutions. Founded in 1966, we specialize in civil and structural engineering, with additional expertise in geospatial, safety, and environmental services. Our broad technical capabilities and diverse client base have allowed us to deliver successful projects in all 50 states and several countries.

Within our Transportation Practice, LJB has spent more than five decades designing infrastructure that connects people, supports communities, and improves quality of life. As a full-service team, we bring deep technical expertise and a collaborative mindset to every project-creating safe, efficient, and forward-thinking transportation solutions.

We are currently seeking an experienced Senior Structural Bridge Engineer to support and grow our Transportation Practice in our South Portland, Maine office.

Salary range: $128,000 - 185,000 based upon experience, certifications, and regional market standards.

Benefits: View our 2026 Benefits Summary

SENIOR STRUCTURAL BRIDGE ENGINEER ESSENTIAL FUNCTIONS:

• Perform engineering design tasks for bridge projects from preliminary to final design.
• Develop specifications, cost estimates, and prepare final bid packages.
• Have established working relationships and contact with client technical staff and project managers, especially in DOT and local governments.
• Provide engineering design services for traditional design-bid-build projects and design-build bridge projects.
• Mentor and assist junior engineers in developing final design plans.
• Coordinate design activities and meetings between design staff, subcontractors, and client managers.
• Participate in project decisions regarding technical approaches, cost, and scheduling performance.
• Identify schedule and cost variances and develop and implement recommendations for corrective action.
• Participate in projects by completing tasks within schedule and budget with teams comprised of different disciplines.
• Actively participate and serve in leadership positions in transportation related organizations such as ASHE, ASCE, NCSEA, etc.
• Other duties as assigned.

SENIOR STRUCTURAL BRIDGE ENGINEER ESSENTIAL CREDENTIALS:

Required Qualifications:

• Bachelor's degree in civil engineering with a Structural emphasis.
• P.E. license.
• 10+ years of bridge/culvert design experience.
• DOT bridge design experience and thorough understanding of DOT guidelines, procedures, and plan preparation (ODOT, NCDOT or MaineDOT preferred).
• Thorough knowledge of AASHTO LRFD Bridge Design Specifications and Manual for Bridge Evaluation.

Preferred Qualifications:

• M.S. degree in a relevant discipline.
• Relationships with DOT and municipalities.

Core Skills:

• Design-bid-build and design-build bridge project delivery.
• Coordination with DOTs, municipalities, client project managers, subcontractors, and multidisciplinary design teams.
• Project scheduling, budgeting, cost tracking, and corrective action planning.
• Mentoring junior engineers and supporting development of final design plans.
• Leadership and active participation in transportation-related professional organizations.

Why Join LJB?

In this role, you will have the opportunity to lead meaningful bridge and transportation infrastructure projects while helping strengthen LJB's growing presence in Maine and across the country. You will work closely with experienced technical teams and trusted client partners, bringing your structural expertise to projects that improve safety, connectivity, and long‑term community value.

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: Bridge Engineer, Structural Bridge Engineer, Structural Engineer, Subject Matter Expert