Senior CAD Designer

Kids for the Future; South Portland (ME); On-site; USD 50,000 - 62,000; Full time

Job summary

LJB Inc. in South Portland, Maine is seeking a Senior CAD Designer to lead Civil 3D drafting for site development projects. You will guide deliverables, coordinate with engineers and surveyors, and ensure standards compliance.

The role requires 5+ years of CAD production experience, strong Civil 3D skills, and proficiency in Excel for data coordination. This on-site position offers competitive hourly pay and opportunities to advance within a national engineering firm.

Qualifications

• Advanced AutoCAD Civil 3D experience with surfaces, alignments, profiles, corridors, data shortcuts, and CAD standards.
• 5+ years of progressive office-based CAD production, Civil 3D drafting, and data processing.
• Microsoft Excel – advanced data manipulation, file conversion, quantity support, and coordination of project data used in CAD production.

Responsibilities

• Lead the development, refinement, and quality review of site, grading, drainage, utility, plan/profile, and detail sheets using Civil 3D, ensuring accuracy and coordination.
• Perform cut-fill and mass balancing analysis with AutoCAD Earthworks to support project decisions.
• Maintain survey point databases, surfaces, data shortcuts, profiles, and cross-sections within Civil 3D for data integrity.
• Develop, utilize, and manage a standardized field code library to support consistent CAD production.
• Perform quality control reviews of CAD deliverables prior to release and resolve production issues.
• Occasionally assist the survey department by drafting topo maps, ALTA surveys, and related drawings using Civil 3D.

Skills

AutoCAD Civil 3D

CAD production

Excel

Tools

AutoCAD Earthworks

Civil 3D

Job description

Location 300 Southborough Drive,Suite 200,South Portland, ME, 04106,United States

Description

LJB Inc. is a fast-growing national engineering firm specializing in civil and structural engineering and geospatial, safety, health, and environmental services. The firm has a 50+ year history of leveraging new technologies to drive innovation and bring unique and sustainable value to our clients.

We are seeking candidates to fill the position of Senior CAD Designer to join our team in South Portland, Maine.

Hourly Pay Range: $36 – $45 /hr based upon experience, certifications, and regional market standards.

SENIOR CAD DESIGNER ESSENTIAL FUNCTIONS:

CAD Drafting & Deliverables:

• Lead the development, refinement, and quality review of site, grading, drainage, utility, plan/profile, and detail sheets using Civil 3D, ensuring deliverables are accurate, coordinated, and aligned with project requirements.
• Perform cut-fill and mass balancing analysis utilizing AutoCAD Earthworks and use results to support project team decision-making.
• Maintain survey point databases, surfaces, data shortcuts, profiles, and cross-sections within Civil 3D, ensuring data integrity and consistency across project files.
• Develop, utilize, and manage a standardized field code library, ensuring consistent layering, symbology, and linework to support consistent CAD production across all projects.
• Perform quality control reviews of CAD deliverables prior to release, identifying errors, resolving production issues, and confirming deliverables meet applicable project, client, and company standards.
• Occasionally Support the survey department by drafting, refining, and reviewing topographic maps, ALTA surveys, construction staking plans, boundary plats, and as-built drawings using Civil 3D.

Communication & Coordination:

• Coordinate closely with licensed engineers, project surveyors, design/production staff, and public agencies to resolve production questions, align deliverables with applicable standards, and support timely project completion.
• Provide technical guidance to less experienced CAD and engineering staff, sharing best practices, reviewing work for accuracy, and supporting consistent application of CAD standards and production workflows.
• Maintain organized project records, metadata, and archive structures.
• Lead or actively participate in cross-office coordination meetings to align data formats, templates, CAD standards, and production workflows.

CAD DESIGNER ESSENTIAL CREDENTIALS:

Required Qualifications:

• Advanced AutoCAD Civil 3D experience required, including demonstrated proficiency with surfaces, alignments, profiles, corridors, data shortcuts, plan production tools, and CAD standards.
• 5+ years of progressive office-based CAD production, Civil 3D drafting, and data processing.
• Microsoft Excel – advanced data manipulation, file conversion, quantity support, and coordination of project data used in CAD production.

Core Skills:

• Desire to innovate and solve difficult problems from inception to final deliverable.
• Ability to react quickly and calmly to high-pressure situations.
• Ability to work independently and in team settings.
• Excellent written and verbal communication skills.

Why Join LJB?

Join a team that values collaboration, technical excellence, and innovation. At LJB, you'll have the opportunity to work on challenging land development projects, leverage advanced technology, and grow your career with a nationally recognized engineering firm that has been delivering sustainable solutions for more than 50 years.

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 does not accept unsolicited resumes from recruitment agencies. Any resume submitted without a signed agreement will be considered the property of LJB, and no fees will be paid. Please direct all communications to the HR team.

Keywords:

Senior CAD Designer, Drafter, Civil Engineering, Land Development, Maine