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Geotechnical & Construction Materials Testing Intern- Summer 2026
Gsi Engineering Llc
GSI Engineering LLC provides engineering services in infrastructure, energy, and industrial sectors.
Internship for undergraduate/graduate students in Geotechnical and Construction Materials Testing, involving field testing, laboratory analysis, geotechnical investigations, and a capstone project
21d ago
Entry-level
Internship
San Antonio, TX
Field
Company Size
100 Employees
Service Specialisms
Construction observation
Materials testing
Special inspections
Geotechnical engineering
Environmental consulting
Exploration
Geophysics
Deep foundation testing
Sector Specialisms
Environmental Consulting
Geotechnical Engineering
Materials Testing
EHS Site Services
Oil and Gas
Construction Observation
Special Inspections
Regulatory Compliance
Role
What you would be doing
lab handling
geotech investigation
soils testing
concrete testing
lab testing
outdoor work
Routine handling of chemicals, biological samples, and lab equipment, requiring adherence tostrict safety protocols.
Geotechnical Investigations : Learn how boring locations are identified, assist with underground utility coordination, and observe geotechnical drilling in action.
Field Testing – Soils : Perform density tests, observe proof rolling, and monitor lime treatments while learning how compliance ensures safe and durable structures.
Field Testing – Concrete : Conduct plastic concrete testing, cast cylinders, and verify rebar placement, connecting your findings to structural performance.
Soils Laboratory Testing : Conduct Atterberg limits, sieve analyses, proctor compaction, and swell tests to evaluate soil performance.
Concrete Laboratory Testing : Prepare and test specimens, measure cylinder dimensions, and determine material strength.
Travel on foot across uneven, rugged, or obstructed terrain, sometimes in areas inaccessible byvehicle.
Work at outdoor sites including wetlands, forests, grasslands, construction zones, andundeveloped land.
What you bring
construction materials
microsoft
engineering
attention to detail
communication
fieldwork
Ability to work outdoors in varying weather conditions and on active construction sites.
Regular exposure to moderate to loud noise levels from laboratory equipment, ventilationsystems, and instrumentation.
Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint) for documentation and reporting
Ability to stand, walk, drive, and operate lab and field equipment for extended periods.
Ability to bend, twist, reach, stoop, kneel, climb, and balance as needed during both lab andfieldwork.
Ability to pass a background check screening
Must reside near or be able to relocate to the internship location (relocation assistance not provided).
This position requires moderate travel, approximately up to 40% of the time, in support of business
Ability to lift and carry between 35–75 lbs. of equipment or samples over distances up to 75 feet.
Frequent use of hands and arms for sampling, operating tools/instruments, data entry, andtesting procedures.
This position operates in a hybrid work environment, requiring flexibility to work effectively from both alaboratory and field work setting.
Use of Personal Protective Equipment (PPE) such as lab coats, gloves, safety goggles, andrespiratory protection.
Possible exposure to chemical odors, dust, or temperature fluctuations within the labenvironment.
Basic understanding of construction materials and testing procedures is a plus.
Strong attention to detail and organizational skills.
Ability to communicate effectively in both verbal and written formats in varied environments,often while wearing PPE.
Must possess a valid driver’s license and reliable transportation.
Ability to use sensory capabilities to see (including close and distant vision, color perception,depth perception, and focus) and smell for observation and safety purposes
Currently enrolled in an undergraduate or graduate degree program. Preference for Civil Engineering, Geotechnical Engineering, Geosciences, Geology, Construction Management, Concrete Management, or related fields.
Exposure to varying weather conditions including heat, cold, humidity, rain, or sun.
Founded with a mission to deliver innovative engineering solutions, GSI Engineering LLC has grown into a trusted partner for critical infrastructure projects.
Specializing in industrial, energy, and infrastructure sectors, the company tackles complex engineering challenges with precision and expertise.
Their portfolio includes diverse projects, from large-scale industrial systems to sophisticated energy solutions, with a reputation for exceeding client expectations.
GSI Engineering’s approach is rooted in practical problem-solving, utilizing cutting-edge technology and industry-leading best practices to deliver sustainable results.
The firm has built lasting relationships with government bodies, commercial entities, and residential developers, becoming a key player in major public and private projects.
Some standout projects include advanced water treatment systems and renewable energy infrastructure, showcasing GSI’s ability to adapt to evolving industry needs.
Culture + Values
Integrity and Professionalism
Excellence in Engineering Solutions
Commitment to Client Success
Collaboration and Teamwork
Continuous Improvement
Innovation and Adaptability
Accountability and Responsibility
Environment + Sustainability
2030 Target
Net-zero emissions goal
The company aims to achieve net-zero emissions by 2030, demonstrating a commitment to combating climate change through strategic environmental initiatives.
Commitment to reducing environmental impact
Implementation of energy-efficient systems and processes
Adoption of renewable energy sources where possible
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