About Me.
Real-world general contracting experience combined with specialized in-house capability.
My Story
Built on the jobsite. Sharpened by systems.
Jonas Moros didn't set out to become a general contractor — he grew up as one. Raised in Tampa, Florida, the son of a military family with an engineer father from Venezuela, Jonas spent his early years working alongside stonemasons and concrete crews, learning residential foundation work from the ground up, literally. That early hands-on experience — mixing, forming, and pouring concrete — became the foundation (in more ways than one) for everything that followed.
Jonas moved to Dallas to attend Southern Methodist University, where he earned his bachelor's degree in Computer Science, followed by a master's with a specialization in Artificial Intelligence. Even as a graduate student, though, he kept one foot on the jobsite — picking concrete work back up, then expanding into general contracting and structural steel, a trade he'd been drawn to since he was young. Over time, that combination sharpened into a specialty: concrete and steel, the two trades he considers his strongest.
It was through SMU that Jonas began building the relationships that would shape his career — working with private individuals on industrial and commercial developments across the Dallas area. Along the way, he found a way to bring his two worlds together: applying his computer science and AI background to build a streamlined system for project management, scheduling, and coordination. The result is a level of efficiency that lets him operate, by his own estimate, with the output of a team ten times his size.
JEM Builders reflects that approach. It's a hands-on, boutique operation — not a large-scale general contracting firm, but one with the manpower and systems in place to take on projects from small scale up to developments over 100,000 square feet, with consulting experience on projects well beyond that. For Jonas, that's the point: fewer layers, more direct involvement, and a builder's understanding of the work at every stage — from the first pour to the final beam.
My Values
Integrity
Highest ethical standards; transparency and fairness in every dealing.
Quality
In-house self-perform trades mean tighter control over workmanship, especially in concrete and steel.
Collaboration
Close alignment with clients, design teams, and trade partners throughout the project.
Efficiency
Streamlined delivery that protects schedule and budget without compromising quality.
My Approach
Personalized, hands-on delivery.
I take the time to deeply understand each client's goals. My track record of on-time, on-budget delivery has forged long-term repeat client relationships. I treat your capital as if it were my own, pushing for value engineering and constructability solutions early in the design phase.
Why Choose Me
I am your partner on site.
At JEM Builders, I am more than a construction manager — I am your partner on site. From real-world general contracting experience to specialized in-house concrete and steel capability, I deliver cost-effective, efficient, and high-quality results on every project.
Hands-On Expertise
Expertise in the field.
I bring hands-on experience as a general contractor, construction and project manager, and concrete and steel specialist — personally superintending every job and overseeing quality control myself, rather than handing that off to corporate overhead.