Engineering Excellence, 

Delivered with Integrity 

At ST Engineering, LLC, we deliver reliable and efficient Mechanical, Electrical, Plumbing, and Fire Protection solutions tailored to project goals and industry standards. Our focus is on providing practical, high-quality results for every project. 

Our Services

  • Aerial view of the rooftop of a building with multiple large air conditioning and ventilation units, fans, and industrial equipment.

    Mechanical

    We design efficient HVAC systems that ensure comfort, air quality, and energy performance. From heating and cooling to automation and controls, our solutions keep buildings running reliably.

  • Close-up image of an electrical control panel with circuit breakers, terminal blocks, wiring, and indicator lights.

    Electrical

    We create safe and dependable electrical systems—from power distribution to energy-efficient lighting and emergency power. Every design is built around reliability and code compliance

  • A white bathroom sink with a gold faucet, water flowing into the drain.

    Plumbing

    Our plumbing designs cover water supply, drainage, and specialty piping. Each system is engineered for safety, efficiency, and long-term durability.

  • Outdoor utility pipes and valves attached to a beige wall, including a pressure gauge, rusted valve handles, and electrical box, with green plants at the bottom right.

    Fire Protection

    Our fire protection systems, including sprinklers and fire pumps, are designed to meet strict codes while safeguarding occupants and property.

Explore Our expertise

Industries We Serve

01
Residential & Multi-Family Housing
02
Commercial Developments
03
Government & Civic Buildings
04
Educational & Institutional Buildings
05
Hospitality & Lodging
06
Pharmaceutical & Life Sciences
07
Religious & Cultural Centers
08
Healthcare & Medical Facilities

About Us

At ST Engineering, every project receives hands-on guidance from experienced professionals, ensuring systems are accurate, compliant, and built to last. With a focus on innovation, collaboration, and forward-thinking design, we create solutions that deliver long-term efficiency, safety, and performance for every client.

Our team’s dedication to precision and accountability ensures that each system is thoughtfully designed, practical, and adaptable for future needs.

Mohammed Selim Hossen, P.E., LEED GA

Founder & President — ST Engineering, LLC

Mohammed is a licensed Professional Engineer with over 8 years of experience in mechanical, plumbing, and fire protection engineering, complemented by strong knowledge of electrical systems and codes. Before founding ST Engineering, he held senior roles at reputable MEP firms in Florida, delivering safe, efficient, and code-compliant engineering solutions.

Mechanical, plumbing, and fire protection system design

Familiarity with electrical codes and standards

Ensuring compliance with Florida and international codes

Leading projects across commercial, residential, healthcare, hospitality, and educational sectors

Managing multidisciplinary teams and complex project coordination

Professional Certifications

Professional Engineer (P.E.) — Florida, Georgia, and North Carolina

LEED Green Associate

Tanjila Tonney

Vice President & Office Manager — Electrical Engineer

Tanjila brings a detail-oriented approach to electrical system design and office management. She focuses on ensuring efficient, code-compliant, and innovative electrical solutions while overseeing office operations to maintain smooth workflows and team coordination.

Energy-efficient electrical design

Code compliance and safety

Integration of innovative technologies

Reliable, performance-driven electrical systems

Office management and team coordination

Our Leadership Team