Tunnel Engineer Intern Summer 2026

Aldea Design Services, LLC is an LJB Engineering Company. 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.

At LJB, we think bigger and are committed to improving the quality of life for our clients, communities, and employees. We have many challenging and interesting projects that empower employees to "think outside the box" in a great team-oriented environment.

We are currently seeking a Tunnel Engineering Intern for our Underground Services team in Frederick, Maryland. We offer challenging and rewarding assignments for co-op students and summer interns to learn and grow in their capabilities. Students work with experienced engineers and gain exposure to a variety of civil engineering challenges. They also have the opportunity to work on real world projects in a professional environment.

Compensation: $20+ an hour

TUNNEL ENGINEERING INTERN ESSENTIAL FUNCTIONS:

• Produce technical deliverables according to client specifications with appropriate guidance.
• Prepare construction plans and specifications, structural/geotechnical calculations and design reports, and technical memoranda with appropriate guidance.
• Communicate technical and non-technical information in a concise, professional manner, including participation in technical meetings and workshops with owners, contractors, and other stakeholders.
• Produce engineering calculations including tunnel, geotechnical, and structural calculations (including numerical analysis) as required in support of tunnel and trenchless design including support of excavation (shafts & tunnels – including connection details and complex structures), and adherence to all local and national codes of practice for concrete, steel, and timber design.
• Assist in preparation of technical memoranda, letters, and reports, including geotechnical data reports (GDR's), and geotechnical baseline reports (GBR's).
• Assist with geotechnical engineering associated with tunnel and trenchless design, including development of design parameters from geotechnical reports and project documents.
• Assist with structural engineering associated with tunnel, shaft, and stations, including lining, connections, support of excavation, and retaining structures in steel, concrete, and timber.
• Observe construction in the field on an as needed basis.
• Field based assignments will include weekdays, night, and weekend work. Office based assignments will require a standard weekday business hours work schedule

TUNNEL ENGINEERING INTERN ESSENTIAL CREDENTIALS:

Education:

• Junior or Senior year of bachelor's degree in relevant areas of study required (Civil, Structural, Geological/Geotechnical, or related field).

Qualifications:

• 0-3 years of relevant experience.
• Excellent problem solving, decision making, and teamwork skills.
• Excellent technical writing skills and attention to detail.
• Excellent communication skills, a thorough knowledge of relevant technical codes, operations, processes, and trends.
• Ability to communicate effectively with colleagues, contractors, and clients.
• Ability to work independently, exercise independent judgment, interact with other staff, and collaborate with other disciplines.

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.

Recruiters or staffing agencies: LJB Inc. is not obligated to compensate any external recruiter or search firm who presents a candidate, their resume, or profile to an LJB Inc. employee without a current, fully executed agreement on file. Please direct all communications to the HR team.

Key Words: Summer Intern, Tunneling Engineering Intern, Tunnels, Civil Engineering, Maryland