3MG psc architects + engineers

Meet Our Team of Architects & Engineers
in Puerto Rico

At 3MG PSC Architects + Engineers, our team is composed of highly skilled architects, civil engineers, project managers, inspectors, interior designers, and technical specialists.

With decades of combined experience in governmental, institutional, hospitality, commercial, and residential projects, our professionals deliver excellence at every stage of design, engineering, and construction.

Engineering projects and architects

Manuel Ray, PE

Principal

Professional Civil Engineer • Senior Project Manager

PE, AP, IPV, LEED AP

Education & Credentials

  • BS in Civil Engineering, University of Puerto Rico at Mayaguez (1978)
  • Master’s Certificate in Project Management, George Washington University (2002)
  • Puerto Rico Professional Engineer License #8259
  • Founder, USGBC Caribbean Chapter

PROFESSIONAL PROFILE

With extensive experience in design, coordination, inspection and construction administration, Manuel has led high-impact projects in hospitality, coastal and waterfront developments, and major institutional facilities.

His leadership emphasizes constructability, efficiency, sustainable development, and strict compliance with codes and standards.

He is recognized as a strong advocate for green building and environmental responsibility in Puerto Rico.

Lectures & Contributions

Manuel has been invited to speak at:

  • University of Puerto Rico – Mayaguez Campus (graduating class)
  • CIAPR (Professional Engineers Association) - Continuing Education
  • CAAPPR (Architects Association) -Continuing Education
  • Microjuris • American University of Puerto Rico

Topics include permitting, construction management, environmental design, green issues, urban planning, codes & standards, risk management, and professional liability.

Maria Del C. Ray

Maria del Carmen Ray

Professional Civil Engineer

Senior Project Manager

Engineering projects and architects

Maritere Rovira Calimano

Architect

Interior Designer

Graduated from Louisiana State University with a professional degree in Architecture. Mrs. Rovira has vast experience in interiors and furniture design-build, with projects located in many of the major hotels on the island, including AC Marriot, Condado Plaza and Ritz-Carlton. Collaborated in design projects like La Ventana al Mar in Condado and Parque Luis Muñoz Rivera. Lead Project Manager for the Hotel San Juan current renovations. Responsible for the Interior Design of Club Lounge, General Manager’s Apartment and Public Areas Furniture, Fixtures and Equipment selection at the Intercontinental Hotel. Lead interior designer for MedCentro Healthcare System’s new executive, administrative, accounting and telemedicine offices. Experienced in project management and post-disaster building safety evaluation. Developed complete field assessments of damages caused by Hurricane Maria for El San Juan Hotel, and Intercontinental Hotel.
Engineering projects and architects

Alexandra Betancourt

Architect, AIA

Registered Architect in Puerto Rico with 14 years of experience providing services for projects of various scales from the design phase through construction completion. Projects include large scale Municipal buildings and parks, commercial buildings and private design projects. Experienced in Historic Preservation Projects, including Construction Documents and Construction administration, as inspections for compliance with federal historic standards.
 
Mrs. Betancourt was also part of the team of designers responsible for Muelle 3 and contributed into the Construction Documents Phase of Muelle Panamericano I & II.
Engineering projects and architects

Erwin Riefkohl Hernández

Architect, AIA

Registered architect in Florida and Puerto Rico with 10 years of experience in the industry. Has worked in world class Healthcare projects including the Miami Cardiac and Vascular Institute and the Miami Transplant Institute. Experienced in complex and large-scale developments with 800+ units in New York city. Trained by world leading medical planners and Heath care designers. Earned a master’s in architecture and health; a unique Healthcare design program. Participated in more than 20 hospital projects, many well over the 10- million-dollar mark. His work has impacted almost every hospital department from outpatient clinics to transplant ORS and Cath Labs. Earned construction field experience as quality Control specialist, Project Manager for Federal Projects for the FAA and Volunteers of America. Lead designer in the reconstruction of American University, Bayamon and Manatí campus.

A Multidisciplinary Architectural & Engineering Team in Puerto Rico

Our team brings together specialists in architecture, engineering, inspections, planning, interior design and construction management, allowing us to support projects from concept through completion.

We are committed to delivering quality, innovation, and technical excellence for governmental, institutional, commercial, hospitality and residential developments across Puerto Rico.

Engineering projects and architects

Henry Bello Batista

Professional Civil Engineer

Graduated from University of Puerto Rico, Mayagüez Campus with bachelor’s degree in Civil Engineering. He has over five years of experience in construction and inspection. Bello has also been involved in Civil Engineering designs, such as well as storm and sanitary sewer designs; gradings, and developing automatizations using apps and/or software for math and rendering models. Has a wide experience in Autocad, Autocad Civil 3D, and Microsoft Office programs. His work have been featured in projects such as Mayagüez Waterfront Industrial Subdivision, Residence Inn by Marriot, among others.
Engineering projects and architects

Denys Omar Arriaga

Civil Engineer

Graduated from University of Puerto Rico, Mayagüez Campus, with a bachelor’s degree in Civil Engineering and master’s degree certifications in Construction Management, Project Management, and Environmental Engineering. Arriaga had been certified as Low Impact Development Inspector by the United States Army Corp of Engineers. He has experience in Construction and Green Inspections using LEED requirements. Arriaga has also been involved in civil and structural engineering designs, storm and sanitary sewer designs, as well as grading. Has developed automatizations using apps and/or software for math and rendering models. With a wide experience in Revit, Autocad, Autocad Civil 3D, and Microsoft Office programs, his works have been featured in projects such as Mayagüez Waterfront Industrial Subdivision Reconstruction, Residence Inn by Marriot and Royal Sonesta Hotel, among others.

Juan C. Deyá

Architect, AIA

Jose Fraguada

José Fraguada

Architect, Inspector

Engineering projects and architects

Luis Alfredo Maldonado

Senior Draftsman

Licenced draftsman since 1994, Luis Alfredo has vast experience in architectural drawings, dominating programs such as AutoCad, Revit, Photoshop and SketchUp among others. In addition to his professional education in drafting, he also has a major in interior design. He works on all phases of design, up to developing final construction documents and providing support through construction administration. Mr. Maldonado has worked with prominent architecture and engineering firms throughout his career, making him a great asset for our team.
Engineering projects and architects

Gabriela De Jesús Navia

Architect

Graduated from University of Puerto Rico, Río Piedras Campus, with a Master’s degree in Architecture and Bachelor’s degree in Environmental Design. She has worked with private commercial, hospitality, and public projects. Gabriela has covered a range of phases throughout various projects by being involved in architectural design, interior design, urban planning, post-disaster rehabilitation, landscaping and other disciplines. Has wide experience using softwares such as Autocad, Revit, & Sketchup and bringing projects to life through Photoshop, Illustrator, Lumion, Enscape & Twinmotion for renderings.

De Jesús’ featured works include Condado Plaza Hotel, Sugarcane Gastro-Bar, Plaza Ramón Emeterio Betánces, FARMEDICAL, Biesek Development Hotel, among others.

Gisela Manteiga

Architect

Currently pursuing a Bachelor’s degree in Environmental Design to subsequently pursue a Master’s degree in Architecture. Experienced in programs like AutoCad, Photoshop, Illustrator, Twinmotion, Sketchup, and Vray. Has been part of organizations such as the National Honor Society and Cáritas Parroquial. Manteiga is also skilled in research and investigation. Works with 3mg as an architect assistant in several architectural projects, including American University, private high-end residential projects, private commercial and hospitality projects.

Yulian De Jesús

Civil Engineer

Ricardo Quiñones

Ricardo Quiñones

Inspector

Master electrician, with 33 years of experience. Construction and restoration inspector since 2008 in electrical, mechanical and civil disciplines. Has worked on projects like St. Regis Bahia Beach Resort, El Conquistador Hotel, Ritz-Carlton Hotel and Luis Muñoz Marín Airport among others.
Sarah Ruiz

Sarah Ruiz

Draftman

Armando Rivera

Armando Rivera

Intern-Architecture Student

He is currently working towards his professional bachelor’s degree in architecture at the Polytechnic University of Puerto Rico. With experience in computer programs such as Autocad, Revit & Rhinoceros, and 3D modeling and rendering programs, such as Sketchup and Twinmotion. Rivera also performs and implements the use of technology, such as aerial drone, at as-builts and inspections in projects such as Dorado Beach East, American University, Cancha Francisco (Pancho) Padilla, among others.
Francisco Molina

Francisco Molina

Intern-Engineering Student

Engineering projects and architects

Nixaly Ramirez Lorenzo

Senior Architect Consultant, AIA R+P Architects, Principal

Registered Architect in Florida and Puerto Rico with 19 years of experience providing services in design, construction project management, quality control, construction claims services, facility safety assessment, hazardous materials abatement, retrofitting, and post occupancy evaluations (POE).
 
Planned, developed and managed multi-million- dollar projects of all scopes ranging from governmental/institutional, hospitality, commercial, laboratories/medical facilities, historic preservation, private developments and TOD; by means of various delivery methods as design-build and CM.
 
Head Designer and project planner for UPR and Magüeyes Island Marine Science & Research Station, Oceanography Laboratories and pier at Magüeyes Island for NOAA – CRESS.
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Eduardo Ray

Project Manager

Eduardo Ray

Engineering projects and architects
Engineering projects and architects

Nixaly Ramirez Lorenzo

Senior Architect Consultant, AIA R+P Architects, Principal

Registered Architect in Florida and Puerto Rico with 19 years of experience providing services in design, construction project management, quality control, construction claims services, facility safety assessment, hazardous materials abatement, retrofitting, and post occupancy evaluations (POE).
 
Planned, developed and managed multi-million- dollar projects of all scopes ranging from governmental/institutional, hospitality, commercial, laboratories/medical facilities, historic preservation, private developments and TOD; by means of various delivery methods as design-build and CM.
 
Head Designer and project planner for UPR and Magüeyes Island Marine Science & Research Station, Oceanography Laboratories and pier at Magüeyes Island for NOAA – CRESS.

Eduardo Ray

Engineering projects and architects
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