Design Assistant Jobs in Lexington, SC (NOW HIRING)

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AECOM is seeking a motivated and experienced Civil/Highway Engineer- Senior Roadway Designer to join our roadway design team, with specific familiarity with the South Carolina Department of Transportation (SCDOT) design standards, manuals and processes. The successful candidate will perform design of highway/roadway projects from preliminary through final construction plan stages, prepare right-of-way (ROW) plan sets, coordinate utility relocations, and produce technical design deliverables in accordance with SCDOT and AASHTO standards.

Key Responsibilities

• Prepare and review roadway design plans including alignments, typical sections, cross-sections, profiles and geometric layouts consistent with SCDOT's Roadway Design Manual and Plan Preparation Guide.
• Develop and document design calculations for roadway geometry, drainage systems, earthwork, pavement design, slopes, and other roadway features.
• Produce construction plans, specifications and cost estimates (PS&E) for state and local roadway projects, including maintenance of traffic (MOT), signing & pavement marking, and right-of-way plan development.
• Coordinate subsurface utility engineering (SUE) activities, utility relocations, right-of-way acquisitions and provide input for related plan sheets.
• Use CAD/design software (MicroStation, GEOPAK/OpenRoads, Civil3D, etc.) to prepare and finalize plan sets, profiles, cross sections and quantity summaries.
• Collaborate with multi-discipline teams (traffic, drainage/hydraulics, bridge/structures, survey, environmental) to ensure integrated design solutions.
• Conduct field reviews, attend stakeholder meetings, assist with public information meetings and interface with SCDOT, consultants and contractors as necessary.
• Perform quality control checks on design deliverables to ensure adherence to internal standards and SCDOT policies.
• Mentor junior engineers and technicians; assist in project scheduling, resource management and client/agency coordination.
• Stay current on SCDOT, AASHTO and FHWA policies, manuals and industry best practices; maintain awareness of emerging roadway design tools and processes.

Working Conditions & Environment

• Office environment with periodic field visits to project sites (construction, surveying, field review).
• Some travel within South Carolina may be required.
• Occasional after-hours or high-priority deadlines on state projects may necessitate extended hours.

Career Growth & Opportunities

This position offers strong opportunities for professional growth in transportation design, particularly working on SCDOT projects that impact the region's infrastructure. Successful candidates may advance to Senior Designer or Project Manager roles, lead multi-discipline teams and take on higherprofile highway/bridge projects.

Minimum Requirements:

• Bachelor's degree in Civil Engineering plus six (6) years of roadway/highway design experience or demonstrated equivalency of education and/or experience
• Exposure to state DOT projects in South Carolina
• Familiarity with SCDOT roadway design manuals and plan preparation guidelines
• Proficiency in design software such as MicroStation, GEOPAK/OpenRoads Designer, AutoCAD Civil3D, and MS Office tools
• Professional Engineer (PE) license preferred or ability to obtain within 12 months of hire

Preferred Qualifications:

• Professional Engineer (PE) licensure in South Carolina
• 8 + years of experience
• Experience preparing right-of-way plans, coordinating SUE and utility relocation with SCDOT projects
• Experience with alternative delivery methods (design-build, on-call roadway design contracts) and knowledge of SCDOT procurement/contracting processes
• Experience in drainage/hydraulics design, MOT planning, stormwater management and rehabilitation of existing roadways
• Familiarity with ProjectWise, Bluebeam Revu, or other document management/collaboration tools
• Strong verbal, written and interpersonal communication skills; ability to work collaboratively in multi-discipline teams 

Relocation assistance is not available.

Sponsorship for US employment authorization is not available now or in the future for this position.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients' complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you'll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you've always envisioned. Here, you'll find a welcoming workplace built on respect, collaboration and community-where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.