About Us


Ruben Martinez Rubén Martínez, P.E., S.E. serves as President of Martinez Moore Engineers. Prior to forming Martinez Moore Engineers, Ruben was a Principal at Walter P Moore with over 17 years of experience with the firm in Houston and Austin. His experience in engineering, design, analysis, and management includes a wide range of diversified projects ranging from $1M to $500M in construction cost. Ruben understands each project has unique design requirements, and works diligently to design efficient and cost-effective solutions that meet the operational, functional, and aesthetic needs of its users.

Kate Tomlinson Kate Tomlinson, P.E., LEED AP BD+C is a Principal and serves as Senior Project Manager for structural engineering. Prior to joining Martinez Moore, Kate was a Senior Associate and Project Manager with over 11 years at Walter P Moore in Austin and Houston. She has experience in diversified aspects of project management, structural engineering analysis, design, and construction administration. Her extensive practice with providing unique solutions for work involving existing structures is a testament to her innovative technical skills. Kate’s focus is fully understanding her client’s vision and unique objectives and working with her team to ensure best practices and efficiencies are implemented throughout design and construction.

Al Hajka Al Hajka P.E. serves as Director of Civil Engineering. Prior to joining Martinez Moore Engineers, Al had over 16 years of experience as a Senior Associate and Senior Project Manager at Walter P Moore in Austin and Houston. His broad resume encompasses civil engineering design, analysis, project management and construction administration for projects ranging in size from $100k – $100M. He has uniquely diversified skills working with state, federal, public, and private sectors. Al understands each project has specific goals and design requirements and works tirelessly to understand his client’s vision.

Bryan Haverhals Bryan Haverhals, P.E. is a Principal and serves as Director of Structural Engineering in the Dallas and Fort Worth offices. Prior to joining Martinez Moore Engineers, Bryan had over 15 years of management and design experience as a structural engineer. He has served as engineer of record, led construction administration efforts, and implemented cost-effective and timely completion of multi-million dollar projects in nearly every market sector. Bryan collaborates with architects, owners, and contractors in the design of structures including data centers, hospitals, medical office buildings, education facilities, retail and distribution centers, office buildings and parking garages.