Software Engineer Intern Jobs in Mayaguez, PR (NOW HIRING)

As an Associate Engineering Intern, you will be assigned to work on a project team in our Grid business unit and assist the engineering team members in the execution of their project work. These projects may involve the design of new and/or modifications and upgrades to transmission and distribution engineering projects. 

Working under the direction of senior engineers, this internship will offer you the opportunity to utilize and expand your academic background in Civil, Structural, Mechanical, Electrical, or other Engineering disciplines in one or more of the following areas: 

• Assist in the preparation of engineering calculations, specifications, and designs. 

• Work on a variety of tasks associated with project reporting, such as tracking and evaluating project activities, project progress, and associated data. 

• Be involved in power designs and the preparation of documents and specifications for the procurement of major equipment, structures, and related installation services. 

This role offers a hybrid work arrangement, with the expectation of spending three days a week in the office, giving you the flexibility to work remotely for two days. 

We do not sponsor employees for work authorization in the U.S. for this position. 

Essential skills and experience: 

• Active enrollment in a Bachelor of Science or Master of Science in Civil, Structural, Mechanical, or Electrical Engineering with a strong academic background. 

• Candidates pursuing other engineering degrees may also be considered if they have relevant coursework in civil, geotechnical, strength of materials, statics, or electrical power. 

• Strong organizational skills with high attention to detail. 

• Self-Starter, proactive, able to work independently with minimal direction. 

• Ability to quickly identify and prioritize issues, create solutions, and meet deadlines. 
• Must be bilingual in Spanish and English (Read, Speak, and Write).

Valued but not required skills and experience: 

• Active enrollment in a BS or MS ABET Engineering Accreditation Commission-approved program. 

• Demonstrated leadership experience within campus and/or the community. 

• Minimum of a 3.0 GPA strongly preferred. 

• Prior, related internship or co-op experience in our business area. 

In this role, we expect people to be willing or able to solve problems using modern tools:

• You are expected to take engineering problems from issue to solution using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
• Many engineers in these roles build or use automation to create calculations, summarize technical documents, or draft design documentation, including appropriate use of agentic AI tools, with strong engineering judgment and verification of results.
• Programming or scripting (e.g., Python, MATLAB, advanced Excel) to automate calculations, design checks, reporting, or data transformation is valued but not required.
• We also value additional learning, such as a minor, certificate, or other training in Computer Science, Artificial Intelligence, Software Engineering, or related fields that helps you apply automation or agentic AI to real engineering problems.

Sargent & Lundy is one of the most experienced full-service architect-engineering firms in the world. Founded in 1891, the firm is a global leader in power and energy with expertise in grid modernization, renewable energy, energy storage, nuclear power, and fossil fuels. Sargent & Lundy delivers comprehensive project services-from consulting, design and implementation to construction management, commissioning and operations/maintenance-with an emphasis on quality and safety. The firm serves public and private sector clients in the power and energy, gas distribution, industrial, and government sectors.

Our Core Values

Every decision we make is guided by our core values. By upholding these six principles, we support our clients, employees, and community. They are the compass we follow as we continue to grow our business and lead the industry.

• Quality - We provide high-quality deliverables and services through an uncompromising focus on peer review, safety, and continuous improvement.
• Accountability - Our actions demonstrate the highest levels of professionalism, integrity, and respect.
• Our People - We value diverse perspectives, encourage professional growth, and are committed to providing a work community where people thrive. Our work is challenging but rewarding.
• Our Clients - We deliver value and exceed our clients' expectations through outstanding customer service, personal accessibility, and clear communication.
• Innovation - Since 1891, we have invested in the people, training, tools, and technology needed to quickly adapt in a constantly changing world.
• Meaningful Impact - We make a positive impact in the communities where we work and live.

Sargent & Lundy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any protected status as defined by applicable law.