Construction Field Engineer Intern (Summer 2026) - SAN ANTONIO, Texas, United States

Overview · An internship at Lemartec provides a valuable opportunity for professional development, helping to shape the careers of future professionals. The intern will be responsible for supporting and assisting the team they are assigned to in the administration and management ...

Job description

Overview

An internship at Lemartec provides a valuable opportunity for professional development, helping to shape the careers of future professionals. The intern will be responsible for supporting and assisting the team they are assigned to in the administration and management of one of Lemartec's projects. During the internship, the intern will join the designated team and contribute to assigned tasks, gaining valuable experience throughout the duration of the program.

Company Overview

Founded in 1979, Lemartec is a national general contractor and construction management firm and is part of the General Building group within MasTec's Clean Energy and Infrastructure segment.

As MasTec's vertical construction arm, Lemartec delivers complex projects across industrial, aviation, power, and large commercial markets. Led at the segment level by Manny García-Tuñón, the General Building Operating Group represents MasTec's vertical construction capabilities and serves as the platform for future growth in this space.  As a MasTec company, Lemartec maintains international capabilities and strategic partnerships throughout the Americas and the Caribbean, enabling the execution of some of the most complex projects in the industries we serve. Through MasTec's network of more than 22,000 professionals and subject matter experts in Engineering, Procurement, and Construction across over 400 locations throughout North America and the Caribbean, Lemartec is uniquely positioned to serve a diversified customer base. With experience across all 16 disciplines of construction, Lemartec combines deep technical expertise with the strength, scale, and financial backing of MasTec to successfully deliver projects of any size and complexity.

MasTec's Clean Energy & Infrastructure (CE&I) segment generates over $4 billion in annual revenue, providing construction services across industrial, renewables, and infrastructure sectors. In infrastructure, we specialize in general heavy civil construction, underground utilities, structures, electrical work, material production, roadways, bridges, specialty pavement overlays, environmental projects, and commercial buildings. Sustainability and safety are foundational to our culture and influence everything we do. 

MasTec, a minority-owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments. Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in Power, #17 Top 50 Domestic Heavy Contractors, #20 Transportation Contractor). 

Responsibilities

• Arrive at the assigned job site on time and prepared to work.
• Provide general administrative and technical support to various teams as needed, assisting with reporting and updates.
• Assist with tracking and updating project-related financial and operational information.
• Help gather necessary documents and information to support project processes and decision-making.
• Act as a liaison between teams and external parties as required during project development.
• Be a quick learner and a good communicator, adding value to the team.
• Assist with all other special projects as needed.

Qualifications

Requirements

• Proficiency in computer programs such as Word, Outlook, and Excel
• Ability to prioritize work and meet deadlines while maintaining a focus on quality and process improvement.
• Detail-oriented and self-motivated.
• Willingness and demonstrative initiative to learn new programs, systems, and tools as they become available.

Educational Requirements

• Currently enrolled as a full-time student in a Bachelor's program or a recent graduate, pursuing a degree in Safety Management, Occupational Safety, Construction Management, Engineering, or a related field.
• Previous internship experience is preferred but not required.

What's in it for You

Professional Development

Gain hands-on experience working with a dynamic, industry-leading team
Exposure to real-world industry-specific tools
Mentorship opportunities with experienced professionals to guide your career growth

Networking Opportunities

Build connections with professionals across various departments and industries
Participate in networking events and team-building activities

Skill Development

Enhance key skills such as project management, communication, and problem-solving
Develop technical expertise and become familiar with industry-specific software

Team Collaboration

Work closely with a team of professionals and contribute to meaningful projects
Opportunities to showcase your strengths and make an impact

Position may be subject to pre-employment screening, which may include background check and drug testing. Accessibility: If you need accommodation as part of the employment process, contact Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log into your candidate profile for up-to-date information. 

MasTec, Inc. is an Equal Employment Opportunity Employer. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal and local laws respecting consideration of unemployment status in making hiring decisions.

Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and it does not require applicants to purchase equipment or software. Ensure that all recruiter email addresses end in or If you suspect you are the target of a scam, we advise you to contact your local law enforcement agency and report fraud at .

MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third-party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.

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Service Line (UKG) : Name

LEM-Lemartec Corporation