Geotechnical Engineering

Our staff combines local and international experience that work hard on providing our clients practical solutions to the projects geotechnical conditions. Our engineers are used to challenges and our goal is to assist our clients on finding reasonable recommendations for the respective projects geotechnical conditions.


Soil and Construction Material Testing

Our construction material testing laboratory has been in operation since 1967. Our construction material testing laboratory has been in operation since 1967.


Environmental Drilling

Jaca & Sierra Engineering, PSC (J&S) has an environmental drilling division dedicated to providing services of installing monitoring wells, lithologic sampling and conducting various task related to geo-environmental studies and remediation.


Subsurface Utility Engineering (SUE)

Jaca & Sierra Engineering, PSC recognizes the need to identify subsurface utilities and has created a Utility Clearance and Survey Division which uses geophysical methods to obtain subsurface utility data


Geotechnical Construction

Since 1967, Jaca & Sierra Engineering, PSC has been an industry leader in providing geotechnical investigations and consulting for dealing with challenging subsoil conditions in Puerto Rico and the Caribbean Region.


GPR Scans for Steel Identification

Jaca & Sierra Engineering, PSC is known to perform geotechnical evaluations and perform materials testing throughout the entire Caribbean. In the past years the capabilities of our firm have increased to cover other disciplines. Our engineers and technical personnel have developed a structural survey division which specializes in Non-Destructive Testing (NDT) of reinforced concrete by geophysical methods.


Construction Quality Management

J&S has extended capabilities of other specialized quality control and quality assurance (QA/QC) engineering inspections for various projects, including, among others, pharmaceutical facilities, commercial buildings, hotels, hospital structures, petroleum and port facilities.


Meditation with Music for a Calmer and Healthier Mind

Many years ago, I worked for my parents who own a video production company. Because it is a family business, you inevitably end up wearing many hats and being the czar of many different jobs. I mainly managed projects and worked as a video editor. On production, there were times that I was called on to work as an audio tech and was made to wear headphones on long production days. In those days, having a really good set of headphones that picked up every nuance of sound was essential to making sure the client got what they needed.


How We Rethink Our Approach To Daily Commitments

Many years ago, I worked for my parents who own a video production company. Because it is a family business, you inevitably end up wearing many hats and being the czar of many different jobs. I mainly managed projects and worked as a video editor. On production, there were times that I was called on to work as an audio tech and was made to wear headphones on long production days. In those days, having a really good set of headphones that picked up every nuance of sound was essential to making sure the client got what they needed.


My Free Time Habit and Why You Should Have One Too

One of the easiest ways to improve travel photos is shooting in better light, and the best light is often in the hour after sunrise and before sunset. That’s because the light takes on a warm golden hue and hits the subject from the side instead of the top. It’s difficult to recreate the grandeur of a vast landscape in the confines of a picture frame.


Learn the Rules First so You Can Break Them Like a Pro

I was recently quoted as saying, I don't care if Instagram has more users than Twitter. If you read the article you’ll note there’s a big if before my not giving of said shit. Numbers are important. Number of users is important. So are lots of other things. Different services create value in different ways. Trust your gut as much (or more) than the numbers. Figure out what matters and build something good.


Helpful Travel Tips and Tricks for your Next Big Adventure

When you are alone for days or weeks at a time, you eventually become drawn to people. Talking to randos is the norm. I’ll never forget the conversation with the aquarium fisherman, forest ranger, and women at the Thai market. It’s refreshing to compare notes on life with people from vastly different backgrounds.


Take the Time to Listen and Find the Right Inspirations

Last year I wrote about why booking too far in advance can be dangerous for your business, and this concept of margin so eloquently captures what I had recognized had been my problem: I was so booked up with clients that I wasn’t leaving any margin for error, growth, planning, or reflection.


Structures and Design of Nature are a Beautiful Things

Just the other day I happened to wake up early. That is unusual for an engineering student. After a long time I could witness the sunrise. I could feel the sun rays falling on my body. Usual morning is followed by hustle to make it to college on time. This morning was just another morning yet seemed different.


Architecture Walks are Popular, Find One in Your City

When you are alone for days or weeks at a time, you eventually become drawn to people. Talking to randos is the norm. I’ll never forget the conversation with the aquarium fisherman, forest ranger, and women at the Thai market. It’s refreshing to compare notes on life with people from vastly different backgrounds.


Top Working Tips to Help You Succeed as a Freelance

Just the other day I happened to wake up early. That is unusual for an engineering student. After a long time I could witness the sunrise. I could feel the sun rays falling on my body. Usual morning is followed by hustle to make it to college on time. This morning was just another morning yet seemed different.


About the Natural Connections Humans Have with Nature

I was recently quoted as saying, I don't care if Instagram has more users than Twitter. If you read the article you’ll note there’s a big “if” before my not giving of said shit. Numbers are important. Number of users is important. So are lots of other things. Different services create value in different ways. Trust your gut as much (or more) than the numbers. Figure out what matters and build something good.


Summer Holiday Guide: How to spend the best time of the year

Many years ago, I worked for my parents who own a video production company. Because it is a family business, you inevitably end up wearing many hats and being the czar of many different jobs. I mainly managed projects and worked as a video editor. On production, there were times that I was called on to work as an audio tech and was made to wear headphones on long production days. In those days, having a really good set of headphones that picked up every nuance of sound was essential to making sure the client got what they needed.


Best New Studio Headphones: the Ultimate Musician Guide

Many years ago, I worked for my parents who own a video production company. Because it is a family business, you inevitably end up wearing many hats and being the czar of many different jobs. I mainly managed projects and worked as a video editor. On production, there were times that I was called on to work as an audio tech and was made to wear headphones on long production days. In those days, having a really good set of headphones that picked up every nuance of sound was essential to making sure the client got what they needed.


Best New Studio Headphones: the Ultimate Musician Guide

Many years ago, I worked for my parents who own a video production company. Because it is a family business, you inevitably end up wearing many hats and being the czar of many different jobs. I mainly managed projects and worked as a video editor. On production, there were times that I was called on to work as an audio tech and was made to wear headphones on long production days. In those days, having a really good set of headphones that picked up every nuance of sound was essential to making sure the client got what they needed.