Dr Al Gonzalez, PE is the CEO and President with DOTec Engineering in St Charles, Missouri.

He began working in engineering in the early 1978. He received his Doctorate in Engineering education from Missouri S&T 2007, MSME, Mechanical Engineering from Washington University 1984, and his BSCE Civil Engineering from RUM, Puerto Rico 1978.

During the past three decades his work has focused upon developing solutions to infrastructure problems in Civil Engineering Structural and Mechanical Engineering, utilizing local, state codes dealing with building officials. In that capacity, his primary clients have been, residential, commercial, industrial clients, mainly in North America, with exposure to clients in Europe, Australia.

His work over the past 30 years can be summarized as covering the following subjects:

• The design development from the civil works to the structures and MEP of residential, industrial, pharmaceuticals, animal vet facilities, Emergency Urgent Care and other commercial facilities.
• Design, analysis, development of Air Supported Structures all over North America for storage, soccer, tennis, and swimming facilities,
• Design analysis of green houses, gazebos, garages, metallic and timber structures, AAC structures.
• Fall protection structures for all kind of different applications like train stations, busses, hangars.
• Forensic investigation of structural failures, fires, accidents, sleep and fall, retaining wall failures, connections failure analysis.

Dr. Gonzalez, PE collaborated in the development of the old and new ASCE 55 code on Air Supported Structures has authored peer-reviewed articles on structures and has spoken at numerous conferences during the past decades. He holds eight patents in ophthalmology, compound meters and breathalyzers.

Dr. Ali Elawadi, PhD, PE, is the Chief Engineer at DOTec Engineering in St. Charles, Missouri. He is a Senior Structural Engineer with extensive experience in structural design and analysis for residential, commercial, and industrial buildings. He holds a Professional Engineer (PE) license in 10 states, including California, and earned his PhD in Civil Engineering from the University of Missouri, along with Master’s and Bachelor’s degrees from Zagazig University, Egypt.

With over 12 years of expertise in concrete, steel, aluminum, and composite structures, Dr. Elawadi is highly skilled in finite element modeling, structural analysis, and advanced design using industry-standard software such as SAP2000, ETABS, SAFE, RISA, ABAQUS, and more. His project portfolio includes the design of marina foundations, air domes, and complex aluminum enclosures.

Dr. Elawadi’s academic experience includes leading NSF- and MoDOT-sponsored research at the University of Missouri, where he specialized in reinforced concrete structures and camber calculations for bridge girders. He is an active member of the American Society of Civil Engineers (ASCE) and the American Concrete Institute (ACI), recognized with several awards, including the Best Master Thesis Award and the Egyptian Engineering Syndicate Award.

Dr. Mohamed Abdelmaksoud is a seasoned structural engineer with over 27 years of comprehensive experience in the design and analysis of various structural systems, including steel, reinforced concrete, wood, light gauge steel (LGS), and foundations. His expertise spans not only structural engineering design but also the operational management of steel structure manufacturing facilities, as well as construction costing and site erection activities.

Dr. Abdelmaksoud holds a Ph.D. in Structural Engineering from Ain Shams University (2016), where his research contributed to advancements in structural behavior and design methodologies. He also earned an MSc in Civil Engineering Technology (2008) and a BSc in Civil Engineering (1998), establishing a solid academic foundation for his technical and managerial roles in the field.

Throughout his career, Dr. Abdelmaksoud has combined academic rigor with hands-on industry leadership, authoring six published papers and earning 25 citations. His contributions reflect a deep commitment to innovation, quality, and efficiency in structural engineering.

With a reputation for reliability, precision, and leadership, Dr. Abdelmaksoud continues to make impactful contributions to complex projects, bridging the gap between design, fabrication, and construction.

Design, develop and provide support to clients requiring design of small homes, businesses, specifically he will work in support of the Hispanic Community here in Saint Louis,
Communicate with the owner in Spanish and to bridge between other employees that use Spanish within our organization the organization -Develops plans, specifications, and inspection reports as needed the new & existing projects.

Assist the petitioner as an Architectural Designer in the planning, organizing and executing of projects requiring knowledge of both local as well as international codes, like the International Building Code 2003 thru 2015 as well as codes used here in the United States and some other countries like for example Mexico, Colombia as well as other countries in Central and South America. Create customized solutions for clients specially in the construction as well as the Industrial marketed segments.

Knowledge of Spanish, in a technical context, not only as a bilingual person but as an Architectural Designer.

Mohamed Emad Salah Eldin is a Civil Engineer at DOTec Corp., specializing in infrastructure planning and utility management. With a strong foundation in civil engineering and two years of professional experience, Mohamed delivers comprehensive solutions for site development, transportation, and utility systems.

His expertise includes site planning and road construction, where he designs and oversees grading, alignment, and pavement structures to meet both project specifications and regulatory standards. He is also skilled in utility coordination, managing the integration of sanitary sewer, water, gas, and electric lines to ensure seamless infrastructure implementation.

Mohamed’s work in stormwater and hydrology involves developing drainage systems, erosion control plans, and hydrologic analyses to mitigate flooding risks and ensure environmental compliance. He is committed to code compliance and sustainability, ensuring that all designs adhere to municipal codes while optimizing for efficiency and long-term resilience.

Abdelaziz Mahmoud is a Graduate Civil Engineer at DOTec Corp. He holds a B.Sc. in Civil and Infrastructure Engineering from Ain Shams University and is pursuing an M.Sc. in Engineering Management . He also completed an exchange semester at Utah State University focused on hydrology, GIS, and climate change.

With over three years of combined internship and project experience, Abdelaziz has worked on site development, hydrology, drainage design, and environmental assessments. At DOTec Corp, he supports utility planning, erosion control, and flood compliance using tools like ArcGIS, Civil 3D, and HEC-HMS.

His technical skills include Civil 3D, AutoCAD, HEC-RAS, SewerCAD, and WaterCAD. He is IELTS certified (B2) and trained in negotiation through a program by NYU Abu Dhabi. Abdelaziz brings a strong foundation in sustainable water infrastructure and civil site engineering.

Structural Engineer in the design, analysis, and assessment of residential, commercial, and industrial structures. Proficient in applying engineering principles to ensure the safety, stability, and compliance of structures with local and international codes. Skilled in using industry-standard software such as ETABS, SAP2000, STAAD.Pro,Risa 3D,Risa Foundation and AutoCAD for structural modeling and analysis. Adept at collaborating with architects, contractors, and project stakeholders to deliver cost-effective and sustainable engineering solutions.

I am a Senior Structural Engineer with over 13 years of experience specializing in steel design for industrial and commercial projects. Since earning my Civil Engineering degree from Cairo University in 2012, I have been dedicated to delivering safe, cost-effective, and code-compliant structural solutions across diverse sectors. My expertise covers the full project lifecycle—from conceptual design to detailed analysis and connection design—ensuring the structural integrity and efficiency of every build.

I am proficient in a wide range of industry-standard software tools including STAAD Pro, RISA 3D, MBS (Metal Building Software), IDEA StatiCa, RAM Connection, and CFS. I also hold a Project Management Professional (PMP) certification (No. 3790499), which enables me to lead multidisciplinary teams and manage complex projects with precision and accountability. I’m passionate about engineering excellence and take pride in mentoring younger engineers while contributing to our team’s continued success and innovation.

Ahmad Al-Gharabawi is an experienced MEP Engineer at DOTEC, with over eight years of expertise in mechanical systems design and coordination. He holds a Bachelor of Engineering in Mechanical Technology from the Technological University in Cairo.

Ahmad specializes in the design and coordination of HVAC systems—including DX, Chilled Water, and VRF systems—as well as plumbing systems and domestic water networks. His technical skill set includes HAP 6.2, Revit, Navisworks, AutoCAD, and BIM coordination, along with experience in preparing technical submittals and working with CPVC piping.

His project portfolio includes HVAC coordination for the ED Observation Unit Expansion Project, full mechanical modeling for residential and commercial buildings, and domestic water system design for multi-family housing in New Hampshire. Ahmad has also collaborated with The Wright Company on large equipment layout and BIM review, demonstrating his ability to manage complex systems and ensure seamless integration across disciplines.

Nader Eldemiry is a Graduate Civil Engineer at DOTec Corp. He earned his B.Sc. in Civil and Infrastructure Engineering from Ain Shams University and is currently pursuing an M.Sc. in Engineering Management. He also completed an exchange semester at Temple University, where he focused on water quality, geotechnical engineering, GIS, and project management.

With over three years of combined academic, research, and field experience, Nader has contributed to projects in hydrology analysis, drainage design, site development, and environmental impact assessments. At DOTec Corp, he supports the planning and design of water and utility systems, as well as flood risk management and accessibility compliance using Civil 3D, ArcGIS Pro, and HEC-HMS.

His technical competencies include Civil 3D, AutoCAD, HEC-RAS, SewerCAD, WaterCAD, and Global Mapper. Nader has a strong interest in sustainable infrastructure and has completed a research thesis on wastewater treatment technologies. His multidisciplinary background and global experience allow him to bring practical, forward-thinking solutions to civil and environmental engineering challenges.

Mohamed Saad Elsayed Elmenshawi is a Senior Civil Engineer at DOTEC Engineering, working remotely from Egypt. With over five years of experience in civil infrastructure design, Mohamed brings a strong technical foundation and a detail-oriented approach to every project. He holds a Bachelor’s degree in Civil Engineering from the Faculty of Engineering at Tanta University and is a registered Civil Engineer with the Egyptian Syndicate of Engineers.

Mohamed’s expertise spans a wide range of infrastructure design tasks, including grading plans, road alignments, profiles, assemblies, and corridors. He is highly skilled in designing stormwater management systems as well as water and sewage networks. His responsibilities also include preparing detailed infrastructure shop drawings and modeling utility networks to identify and resolve design clashes efficiently.

He is proficient in several industry-standard software tools such as AutoCAD Civil 3D, SewerCAD, WaterCAD, Navisworks, and Global Mapper. Mohamed is known for his precision, problem-solving capabilities, and commitment to delivering high-quality, coordinated engineering solutions that meet both project requirements and regulatory standards.

I’m Nasrin Ali Alnaggar — a storyteller in the language of data, engineering clarity from complexity. For over a decade, I’ve transformed scattered archives and dense documentation into streamlined, intelligent knowledge hubs that power innovation and precision. As I advance my Master’s in Documentation and Archival Intelligence, I’m pioneering the use of smart technologies to safeguard not just information, but the living memory and identity of organizations. In the world of engineering, every file, report, and record is more than paper — it’s a crucial blueprint in the architecture of success. I’m here to weave those threads into a resilient, accessible fabric that drives your projects forward with confidence.

Structural Engineer with over 5 years of specialized experience in the design and analysis of thin-section structures using steel, stainless steel, and aluminum. Ability to deliver optimized structural solutions with minimal weight while maintaining performance and code compliance. Proficient in the use of engineering software including RISA 3D, AutoCAD, IDEA StatiCa, Mathcad, and Dlubal RFEM, with strong capabilities in both design and structural verification. Specialized in Warehouses, canopies, Sheds, Stairs, Signs, Silos and Façades Structural Framing.

Moaaz Mohamed Husain is an experienced Structural Engineer at Dotec Engineering, with nine years of expertise in structural design and engineering. He holds a bachelor’s degree in civil engineering from Zagazig University, earned in 2014, and is a registered Professional Engineer (PE) in Washington State.

Moaaz specializes in the design of concrete structures, steel structures, foundations, soil retaining structures, light frame wood and cold-formed construction, and timber frame construction. He also has experience in designing pretensioned precast beams and circular steel tanks. His technical proficiency includes a wide array of software tools such as SAP2000, CSI Etabs, CSI Safe, RISA 3D, Staad-pro, Idea-statica, CFS, Tekla Structures, AutoCAD, AutoCAD Structural Detailing, Mathcad, Excel VBA, and VB.net.

Moaaz is adept at creating detailed steel shop drawings and concrete rebar shop drawings, ensuring precision and compliance with engineering standards. His comprehensive skill set and commitment to excellence make him a valuable asset to the DOTEC Engineering team.

Mina Nabil Mansour is a Architect Designer at DOTec Engineering, with four years of experience in delivering architectural solutions. He holds a Bachelor of Architecture Engineering from the Faculty of Fine Arts, Alexandria University in Egypt.

As a BIM Architect and Revit Specialist, Mina excels in advanced 3D modeling, precise documentation, and coordinated project workflows. His technical toolkit includes Revit, Dynamo, Lumion, Twinmotion, SketchUp, Autodesk Construction Cloud (ACC), and Photoshop, enabling him to bring architectural concepts to life with clarity and efficiency.

Recognized as a BIM Architect since 2021, Mina ensures that every design is both visionary and buildable.

Shivanshu Vyas is a seasoned Senior Civil Engineer at DOTec Engineering, with five years of experience in site and land development across diverse U.S. jurisdictions. He holds a Bachelor of Technology in Civil Engineering from Bharati Vidyapeeth University in Pune, India, and two master’s degrees from U.S. institutions: a Master of Science in Engineering Management from the University of South Florida, and a Master of Science in Project Management from the University of the Cumberlands.

Shivanshu specializes in stormwater management, project leadership, and site development, and is proficient in tools such as Civil 3D, Autodesk Storm & Sanitary Analysis, ICPR4, HydroCAD, Hydrology Studio, and Bluebeam Revu. His portfolio includes successful delivery of commercial, residential, and mixed-use projects in Florida, Texas, California, Missouri, and Arizona. Notable projects include the Woodspring Suites Hotel, Tranquility at Ferry Pass, and Wild Heron subdivision in Florida, as well as recent commercial developments in Wartburg and Knoxville, TN.

He is a certified associate in project management (PMI), a Qualified Stormwater Management Inspector (FDEP), and has passed the FE civil exam. Shivanshu is currently working toward his Professional Engineer (PE) license.

I am Mohammed Mahmoud, a Junior Civil Engineer at Dotec Engineering, specializing in infrastructure planning and utility management. My work includes site planning, road construction, grading, and managing utility systems such as sanitary sewer, water, gas, and electric lines to ensure high-quality project delivery.
I also focus on stormwater drainage design, erosion control, and hydrology analysis. My expertise helps ensure compliance with city Code standards while developing efficient and sustainable infrastructure solutions.

Mustafa Mursy is a Structural Engineer with six years of professional experience in the design and analysis of a wide range of structural systems. A graduate of Alexandria University with a bachelor’s degree in civil engineering (2019), In addition to passing the FE exam administered by NCEES, and are proficient in key engineering software such as SAP2000, RISA, IDEA StatiCa, and Tekla Structures. With a strong foundation in structural principles and a practical, has contributed to various projects across different sectors, consistently delivering safe,efficient, and reliable structural solutions that meet project requirements and industry standards.

Mahmoud Osman Mohamed is a passionate and award-winning Junior Architectural Designer with a bachelor’s degree in architecture engineering from Assiut University. With hands-on experience at the Consulting Office of the Egyptian Armed Forces and multiple leading roles in Saudi-based architectural firms, Mahmoud brings a unique blend of design innovation, technical expertise, and project coordination to DOTec Corp. His portfolio includes contributions to high-profile projects like the El-Mosheer Tantawy Axis, The Green River Compound, and Konoz Residential Compound. Mahmoud specializes in villa design, façade engineering, and finishing works, with a strong command of BIM tools and 3D visualization. At DOTec Corp, he is committed to pushing architectural boundaries while delivering sustainable, high-quality design solutions.

Youssif Khamis is a Structural Engineer at DOTec Corp. With a Bachelor of Science in Civil Engineering from Suez Canal University, where he specialized in Structural Engineering, Youssif brings 2 years of hands-on experience in structural analysis and design.

He is proficient in industry-standard tools such as RISA-3D, Mathcad, and AutoCAD, and has a background in designing with steel, wood, and aluminum. His expertise includes preparing structural load calculations and detailed design reports in compliance with ASCE 7 standards. Youssif has contributed to the design of Enerpan systems, carports, and garages, showcasing his ability to deliver practical and efficient engineering solutions.

Mohamed Hesham Mohamed Attia Sewalam is an Architect at DOTec Corp with three years of experience in executing interior finishing works across residential, commercial, and administrative projects. He brings a strong background in on-site execution and project coordination, ensuring high-quality delivery and attention to detail.

Mohamed is skilled in aluminum installations, interior and exterior façades, external sliding aluminum shutters, and curtain wall systems. His technical proficiency includes Revit and AutoCAD, which he uses to support precise design documentation and effective project planning.

With a solid foundation in architectural design and a hands-on approach to construction execution, Mohamed contributes to the successful realization of complex architectural projects.