
Vis Vires means “the power of strength” and that's what drives everything we do.
We were founded with one goal: to build structures that stand the test of time structurally sound, financially practical, and beautifully designed. We bring together the precision of structural engineering and the creativity of architectural design to create spaces that serve and inspire.
Our work is guided by three principles:
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Strength – We engineer every project to ensure safety, stability, and durability.
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Precision – We believe in detailed planning, accurate execution, and continuous quality control.
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Service – We listen, we collaborate, and we deliver what we promise.
From reinforced concrete buildings to retrofitting aging structures, we take pride in solving complex challenges through smart design and innovative construction methods. Our commitment is not just to build, but to build better, for people, for communities, and for the future.

Our Story
Vis Vires Engineering Services began with a simple mission:
To build with strength, integrity, and purpose.
Founded by a team of experienced engineers and builders, our journey started from solving small residential challenges to now leading full scale structural retrofits, vertical expansions, and landmark projects across the Philippines. Early on, we recognized a gap in the industry, clients were either forced to choose between overpriced design firms or incomplete, unsafe construction solutions. We merged the two worlds, engineering precision and practical construction, offering a seamless, reliable, and cost-efficient service. Whether it's structural retrofitting, seismic strengthening, or designing beautiful, functional homes and places of worship, every project we touch is done with one goal: Strength with value. Design with purpose. Execution with integrity. Today, Vis Vires stands as a trusted name in design and build, known for solving structural problems that others walk away from. We don’t just follow codes, we raise the standard.
And we’re just getting started.
Meet The Team

Engr. Eress Allen De Roxas, MsCE
Founder & CEO
A licensed Civil Engineer in the Philippines with over 13 years of experience in the design and construction industry. He earned his Bachelor of Science in Civil Engineering from FEU – Institute of Technology (formerly FEU – East Asia College) in 2011. He advanced his expertise by completing a Master of Science in Civil Engineering, major in Structural Engineering at Mapua University (formerly Mapua Institute of Technology) in 2017. Currently, he is pursuing a Doctor in Engineering Management at the Polytechnic University of the Philippines – Open University (Sta. Mesa, Manila), further expanding his leadership and strategic capabilities in engineering and construction management.
He has led and managed multiple project teams, providing technical expertise and strategic guidance that resulted in the successful completion of complex structural projects. With strong proficiency in structural analysis and design, he specializes in the assessment and retrofitting of existing structures from initial investigation to construction execution. His extensive collaboration with various engineering disciplines and subcontractors ensures alignment with project objectives and the delivery of engineered solutions. He holds certifications as a Safety Officer (BOSH, COSH, SO3) and has awareness-level training in ISO 9001 Quality Management Systems, ISO 14001 Environmental Management Systems, and ISO 45001 Occupational Health and Safety Management Systems. His technical toolkit includes advanced proficiency in structural software such as ETABS, SAP2000, SAFE, STAAD, AutoCAD, and more. Well-versed in international and local building codes including NSCP, ACI, IBC, ASCE, and AISC, he is also experienced in construction methodologies, project logistics, and the integration of design and construction management to ensure efficiency and structural integrity in all his work.

Engr. Ray-Ann Hosena
Principal Engineer - Structural Design Engineer
A highly accomplished and licensed Civil Engineer with over 15 years of extensive experience in structural design, analysis, and project execution. A graduate of Bachelor of Science in Civil Engineering from the Technological University of the Philippines – Manila, he distinguished himself early in his career by placing 4th nationwide in the PRC Civil Engineering Licensure Examination, earning a remarkable general average of 96.75%, a testament to his academic rigor and deep understanding of engineering principles.
Throughout his student years, Ray-Ann consistently demonstrated excellence in technical competitions, becoming a Dean’s Lister and earning numerous accolades in national inter-school quiz contests. His achievements include 4th place in the prestigious 2010 National Civil Engineering Quiz held at the University of the Philippines – Diliman and the Don Thomas Mapua National Civil Engineering Quiz Show, and Champion in the 2009 Talentadong-CE Quiz Bee at TUP. These early accomplishments laid the foundation for a career marked by precision, discipline, and a passion for structural innovation.
In his professional journey, Ray-Ann has developed a strong reputation for delivering safe, cost-effective, and technically sound structural designs for a wide range of projects, from mid-rise buildings to complex infrastructure. He is deeply experienced in applying national and international building codes and is known for his thorough, detail-oriented approach to engineering challenges.
He is proficient in a broad array of structural analysis and design software, including ETABS, SAFE, SAP2000, STAAD Pro, CSI COL, and AutoCAD, enabling him to produce highly accurate, buildable designs that streamline construction and reduce rework. His technical expertise is matched by his ability to maintain strong professional relationships, collaborate effectively with multidisciplinary teams, and uphold the highest standards of engineering integrity.
Ray-Ann’s blend of academic excellence, field experience, and software mastery positions him as a valuable asset in structural engineering and project delivery, contributing meaningfully to the success of each project he undertakes.

Arch. Julius Leo Paz Singson
Principal Architect - CAD/BIM Specialist
Julius is a seasoned architectural draftsman and BIM expert with over 17 years of professional experience in architectural and structural drawing production. A graduate of Bachelor of Science in Architecture from Adamson University, he has built a strong career producing accurate, code-compliant, and buildable plans for a wide range of residential, commercial, and industrial projects.
He is highly proficient in creating working drawings, as-built documentation, and detailed construction sets, consistently contributing design ideas and technical input that enhance both the visual and structural integrity of projects. His dual capability in both architectural and structural drafting gives him a unique advantage in bridging design intent with engineering practicality.
Julius is well-versed in AutoCAD and Revit Structure, using them to develop 3D models and BIM-driven workflows that improve project coordination, minimize design conflicts, and accelerate decision-making. His deep knowledge of Building Information Modeling (BIM) allows him to integrate structural, architectural, and MEP disciplines into a cohesive digital environment, ensuring high-quality outputs from concept through construction.
With a keen eye for detail and a commitment to continuous learning, Julius stays updated on the latest industry standards and BIM technologies. His collaborative approach, efficiency, and technical mastery make him a key contributor to delivering innovative, accurate, and constructible design solutions.
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