Geotechnical Senior Project Engineer

Engineering Consulting Service; San Antonio (TX); On-site; USD 110,000 - 150,000; Full time

Job summary

ECS Limited, a leading geotechnical and construction materials testing firm, seeks a Geotechnical Senior Project Engineer in San Antonio to lead projects from proposal through closeout. You will mentor staff, drive technical quality, manage budgets, and grow client relationships while upholding ECS Core Values.

You will oversee field investigations, prepare proposals, and serve as the primary contact for clients and stakeholders, ensuring timely, accurate results and strong project outcomes.

Qualifications

• Minimum 5 years of related geotechnical experience.
• BS/MS in Civil or Geotechnical related field is required.
• PE license in the work state or eligibility through reciprocity within 3 months.
• Valid driver's license if driving for ECS.

Responsibilities

• Leads geotechnical and CMT projects from proposal through completion.
• Oversees geotechnical reports, technical analysis and recommendations.
• Ensures tasks from proposal to final invoice are completed on time.
• Manages budgets, change orders, invoicing and collections.
• Reviews field reports for quality and completeness
• Prepares proposals and contracts
• Primary client contact and project stakeholder liaison
• Hosts project meetings to present findings and solutions
• Supervises field investigations, drilling and testing
• Provides technical oversight and validates calculations
• Mentors junior staff and manages staffing decisions
• Supports business development and client relationships

Skills

Experience

Communication skills

Project management

Leadership & decision-making

Geotechnical software

Business development

Mentoring staff

Education

Bachelor/Master of Science in Civil/Geological Engineering or similar

Job description

Responsibilities

ECS Limited is seeking an experienced Geotechnical Senior Project Engineer to manage key client projects in our San Antonio office. The Geotechnical Senior Project Engineer leads and oversees geotechnical engineering and construction materials testing (CMT) projects from proposal through final delivery and closeout. This role is fully accountable for project success, including technical quality, client satisfaction, financial performance, and team execution. The Geotechnical Senior Project Engineer provides leadership to project teams, mentors staff, and actively contributes to business development and client relationship growth while maintaining a positive customer service attitude and demonstrating ECS Core Values.

Responsibilities

• Leads and manages geotechnical and CMT projects from proposal through completion
• Oversees preparation and review of geotechnical reports, including technical analysis and recommendations
• Ensures all project tasks, from proposal to final invoice, are completed accurately and on time
• Manages project budgets, change orders, invoicing, and collections
• Reviews field reports and ensures quality, accuracy, and completeness
• Prepares and oversees proposals and contracts
• Serves as primary point of contact for clients and project stakeholders
• Hosts and participates in project meetings to present findings and provide technical solutions
• Supervises field investigations, drilling, and testing activities
• Provides technical oversight and verifies calculations and recommendations
• Mentors and develops junior staff, technicians, and project managers
• Supports staffing decisions and resource allocation
• Performs other duties as assigned

Qualifications

Required Qualifications

• 5 years of related experience
• Bachelor and/or Master of Science in Civil Engineering, Geological Engineering, Geology, or similar is required
• A Professional Engineer (P.E.) license is required in each of the state(s) in which you work, or you must have the ability to obtain a local license through reciprocity within three months of hire date
• If driving for or on behalf of any ECS subsidiary, a valid driver's license is required
• Excellent communication skills (verbal and written)
• Advanced project management and consulting skills
• Strong business development and client relationship skills
• Extensive knowledge of geotechnical principles and applications
• Strong working knowledge of construction materials testing and ASTM standards
• Proficiency with geotechnical software
• Strong leadership and decision-making abilities
• Ability to manage multiple projects and priorities in a consulting environment
• Ability to mentor and develop staff

Military Qualifications

The following US Military ranks will qualify for this position IF they also meet the education and licenses requirements from the above section titled 'Required Qualifications':

• E-7

About Us

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 building science + infrastructure consulting services. We are employee-owned with more than 3,00 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 #38 in Zweig Group's Hot Firm List (June 2026). For additional information about ECS, visit: www.ecslimited.com.

ECS is an Equal Opportunity Employer.