Mechanical Engineering Intern Summer Jobs in Puerto Rico

Description

This position has a target start date in summer 2027.

As a Substation Engineer 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, substation, distribution, renewable, and battery energy storage system engineering projects.

Working under the direction of senior engineers, this internship will offer you the opportunity to utilize and expand your academic background in engineering 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 specifications for the procurement of major electrical power equipment and related installation services.

Qualifications

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

Essential skills and experience:

• An expected graduation date in Fall 2026, Spring 2027, Fall 2027, or Spring 2028 with a Bachelor of Science engineering degree with a strong preference in an Electrical Engineering, Mechanical Engineering, Aerospace or Chemical Engineering degree, and/or coursework including Coding, 3D Modeling/Design, and experience using agentic AI.  
• Strong organizational skills with high attention to detail. 
• Self-starter, proactive, and 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: 

• Enrollment in a BSEE, MSEE, or equivalent degree from an ABET accredited engineering program. 
• Familiarity in designing or developing AI applications and/or agents. 
• Demonstrated leadership experience within campus and/or the community. 
• Minimum of a 3.0 GPA strongly preferred. 
• Prior, related internship or co-op experience. 
• A strong academic background and coursework in electrical power. 

AI & Automation at Sargent & Lundy

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.

Award-Winning Benefits

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.

Equal Opportunity

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.

Employment Type: OTHER