LJA Engineering Inc

Sr. Designer - Traffic

LJA Engineering Inc$75K — $95K *
Transportation
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of CAD experience, with 0-2 years in MicroStation ORD.
  • Strong familiarity with TxDOT and Houston-area traffic signal design criteria.
  • Experience using Agi32, SignCAD/GuideSIGN, and related tools.
  • High school diploma or technical school training in CAD or equivalent experience.

Responsibilities

  • Develop technical signal design plans that comply with TxDOT requirements.
  • Produce CAD deliverables for traffic signals, ITS, illumination, and utilities.
  • Prepare elevation sheets, voltage drop calculations, and quantity summaries.
  • Support engineers with design calculations and cost estimates.
  • Collaborate with team members to address project challenges and client needs.
  • Create high-quality CAD drawings for various traffic-related projects.
  • Manage project schedules and provide regular progress updates.

Benefits

  • Generous PTO, paid holidays, and office closure between Christmas and New Year's.
  • Comprehensive health, dental, and pet benefits, including mental health support.
  • Paid maternity and parental leave for family support.
  • Tuition reimbursement and in-house training opportunities.
  • Referral bonuses for bringing in talented candidates.
  • Company-sponsored volunteer days and philanthropic initiatives.
  • Memberships to industry organizations for professional development.
  • Opportunities for internal mobility and career advancement.
  • A vibrant company culture with social events and team activities.
Full Job Description
POSITION OVERVIEW: As a Sr. Designer at LJA Transportation, you will be responsible for providing drafting support for traffic engineering projects using CAD software and requires strong technical accuracy, attention to detail, and familiarity with TxDOT standards.

A TYPICAL DAY MIGHT INCLUDE:
  • Developing technical signal design plans that meet TxDOT requirements.
  • Producing CAD deliverables for traffic signals, ITS, illumination, utilities, and related disciplines.
  • Preparing elevation sheets, voltage drop calculations, and quantity summaries.
  • Supporting engineers with design calculations and cost estimates.
  • Collaborating with team members to solve problems and meet client needs.
  • Produce high-quality CAD drawings for traffic signal design, ITS, illumination, signing, and pavement marking projects.
  • Create and modify maps, plan and profile sheets, and CAD exhibits.
  • Complete redline markups and work from sketches, notes, and verbal instructions.
  • Maintain project schedules and provide progress updates.
  • Stay current with traffic signal design standards and drafting procedures.
  • Support engineers with design calculations, quantity take-offs, and preparation of summary tables.
  • Review standard construction materials and apply appropriate specifications.
  • Apply general mathematical skills to standard design formulas.

REQUIRED EDUCATION/LICENSE/CERTIFICATIONS:
  • High school diploma or technical school training in CAD, or equivalent experience

REQUIRED QUALIFICATIONS:
  • 10+ years of CAD experience and 0-2 years of MicroStation ORD experience.
  • Strong familiarity with TxDOT and Houston-area traffic signal design criteria.
  • Experience with Agi32, SignCAD/GuideSIGN, and related tools.

IDEALLY, YOU SHOULD ALSO HAVE:
  • Effective written and verbal communication skills.
  • Strong interpersonal skills and ability to adapt to shifting project needs.

LEVEL UP WITH LJA

At LJA, we're 100% employee-owned. This drives results, rewards ambition and supports long-term success for every team member. With almost 100 locations and 3,000+ employee-owners (and growing), we're building something big! We want you to be part of it. Your future grows here.
  • Generous Time Off: PTO, paid holidays, and a full office closure between Christmas and New Year's.
  • Comprehensive Benefits: Multiple plan options for health, dental, and pets. Along with mental health support.
  • Family Support: Paid maternity and parental leave to help you focus on what matters most.
  • Education Support: Tuition reimbursement and in-house courses provided by our Learning and Development team.
  • Referral Bonuses: Know great talent? Get rewarded for helping us grow.
  • Community Impact: Company-sponsored volunteer days and philanthropic initiatives.
  • Professional Development: Memberships to industry organizations to keep you connected and growing.
  • Career Growth: Great internal mobility opportunities to advance your career.
  • Fun Culture: LJA social events, employee sports teams, bring your kid to work day, etc.

To Executive Search Firms & Staffing Agencies: LJA Engineering, Inc. and its subsidiaries do not accept unsolicited resumes from any agencies that have not signed a service agreement. All unsolicited resumes will be considered LJA's property. This includes resumes submitted directly to hiring managers without contacting LJA's Human Resources Talent Department.

About LJA Engineering Inc

LJA Engineering is a multidisciplinary engineering firm that provides civil, structural, and transportation engineering services to public and private clients. The company is headquartered in Houston, Texas and has offices throughout Texas and Louisiana. LJA Engineering's services include planning, design, and construction management for infrastructure projects such as highways, bridges, airports, and water and wastewater systems.
Learn more about LJA Engineering Inc
Size
500 employees
Industry
Founded
1972

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