Construction Materials Principal

ECS Group of Companies; Lawrenceville (GA); On-site; USD 140,000 - 200,000; Full time

Job summary

ECS Group of Companies in Lawrenceville, GA, seeks an experienced Construction Materials Testing (CMT) Principal Engineer to lead our Lawrenceville field services team. You will ensure quality and performance meet our standards while consulting with clients and project teams to achieve goals from proposal to final review.

Key duties include overseeing CMT projects, reviewing technical reports, mentoring staff, assisting with proposals, and expanding our client base through effective networking

Qualifications

• B.S. in Civil Engineering, Construction Engineering and Management, Materials Science Engineering, Architectural Engineering, or Geology.
• 12+ years of relevant experience including drafting, reviewing, and approving technical reports.
• Professional licensure as a PE or PG.
• Senior reviewer designation from current/previous firm.
• Valid driver’s license and insurance if driving for ECS.
• Strong leadership, communication, and client relationship skills.
• Knowledge of CMT principles and ASTM laboratory standards.

Responsibilities

• Oversee various CMT projects, review technical reports, prepare and review proposals, and manage department and P&L.
• Provide technical expertise by reviewing reports and mentoring staff.
• Mentor junior project managers and assist with staffing decisions and staff development.
• Attend project meetings with clients and provide technical resolutions as requested.
• Market services through networking and maintain client relationships.

Skills

Project management

Leadership

Client relationship building

Communication

Business development

Mentorship

Safety leadership

Education

Bachelor of Science in Civil Engineering

Construction Engineering and Management

Materials Science Engineering

Architectural Engineering or Geology

Job description

ECS Limited is offering a unique opportunity for an experienced Construction Materials Testing (CMT) Principal Engineer to join our Lawrenceville field services team in a dynamic work environment. In this role, you’ll be primarily responsible for ensuring that the quality and performance on a variety of projects meet our standards and will consult with clients and project teams to ensure goals and deadlines from proposal to final review are met.

Responsibilities

• Oversee various CMT projects, review technical report reviews, prepare and review proposals, and assist with management of your department and P&L.
• Provide technical expertise by reviewing reports and supporting CMT staff through mentorship, training, and development.
• Actively mentor junior project managers and support overall development of your team, including collaborating with other managers and internal recruiters to make staffing decisions and suggestions based on the needs of your project.
• Host or attend project meetings with clients and provide technical resolutions of issues as requested.
• Successfully market our services through networking, while establishing new and maintaining existing client relationships.

Career Development

• As your experience with us grows, ECS will support you in advancing in your career with the potential for advanced certifications and reviewer status with additional benefits through professional training programs.

Required Qualifications

• Bachelor of Science in any of the following: Civil Engineering, Construction Engineering and Management, Materials Science Engineering, Architectural Engineering, or Geology; Note: Construction Management degrees and certain Technology degrees may not be considered.
• A minimum of 12 full years of relevant experience, to include drafting, reviewing, and approving technical reports.
• Professional licensure as a Professional Engineer (PE) or Professional Geologist (PG).
• Must have designation as a senior reviewer at your current or previous firm; detailed information on ECS’ senior reviewer policy may be shared at time of interview or offer.
• Maintain all necessary licenses and certifications for compliance with local, state, and federal laws.
• Demonstrated technical competence, leadership, safety, and professionalism.
• Proven track‑record of excellence in project management, consulting, and business development.
• Expert knowledge of CMT principles, applications, and ASTM laboratory standards.
• Must have valid driver's license and insurance if driving on behalf of ECS.
• Strong marketing skills with the ability to establish and maintain client relationships; experience with established relationships in local market is preferred.
• Excellent communication skills (speaking, reading, and writing).
• Excellent leadership and decision‑making skills with the ability to work effectively with clients, peers, and supervisors.

ECS Group of Companies (ECS) was founded in 1988 with the goal to raise the standards of professional engineering consulting. Today, we are a leader in geotechnical, construction materials, environmental and facilities consulting services. We are employee-owned with more than 3,000 employees in 100+ offices and testing facilities coast to coast. ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). For additional information about ECS, visit: www.ecslimited.com.

ECS is an Equal Opportunity Employer. To learn more, click here.