
David Linton, PE
Vice President | Principal | Department Manager
Bachelor of Science, Civil Engineering | University of Maryland College Park
David is the founder of Linton Engineering, LLC and thrives on the challenge of making what seems impossible – possible. He brings more than 30 years of innovative engineering experience to design and construction projects for public and educational facilities, libraries, office buildings, historic structures, commercial buildings, churches, residential structures and recreational facilities. He is the engineer of record on thousands of projects across the Metropolitan Washington, DC region and beyond.
Birthplace: Frederick, MD
Interests: Going to the gym, reading and travel.

Robert Schottler, PE
Senior Associate Structural Engineer I Commercial Team Lead
Bachelor of Science, Civil Engineering | Virginia TechMaster of Science, Civil Engineering | Virginia Tech
Robert is the Commercial Team Lead and a Senior Associate Structural Engineer at Linton Engineering, a division of Bennett & Pless Inc. He brings extensive project engineering experience to the team with an emphasis on new design-build, renovation and adaptive reuse of commercial buildings, office buildings, public and private educational facilities, libraries, historic structures, churches, residential structures and recreational facilities. A part of the firm since 2008, he has served as the project manager for hundreds of facilities throughout the Metropolitan Washington, DC area for a wide variety of building owners.
Birthplace: Washington, DC
Interests: Working out in the gym, mountain biking and baking.

Justin Christie, PE
Senior Structural Engineer I Residential Team Lead
Bachelor of Science, Civil Engineering with Honors, Structural Emphasis | New Mexico State University
Justin is the Residential Team Lead, overseeing a portfolio of award-winning, high-end residential projects that strengthens our reputation as the go-to structural engineer for one-of-a-kind residences in the Washington, D.C. metro region and beyond. He draws on his experience designing commercial buildings and utilizing diverse construction materials and structural systems for both new and existing structures. Justin manages budgets, schedules, and workflow to deliver buildable designs that align with architectural intent.
Birthplace: Staten Island, NY
Interests: Guitar, music and exploring the variety of cuisine in Northern Virginia.

Roy Armbruster
Structural Technician
Bachelor’s Degree, Recreation, Parks and Tourism Management | Pennsylvania State University
Roy joined Linton Engineering in August 2022. He applies experience as a drafting engineer using Revit, AutoCAD, BlueBeam, and ArchiCAD to a variety of industrial, manufacturing, and construction projects.
Place of Birth: Phillipsburg, NJ
Interests: Snowboarding, hiking, kayaking, soccer, baseball, and concerts

Marvin Ayala
Structural Technician
Associate of Applied Science in Drafting and Design Technology | ITT Technical Institute
Marvin has seven years of structural design experience with a focus on residential, commercial and academic facilities. He has experience in artistic and creative design techniques and uses computer-aided drafting and software to create complex, 3D drawings, modeling and renderings with Revit, including structural framework, foundations, roofs and retaining walls.
Interests: Unique and custom structures.

Alexander Bejna
Design Engineer
Bachelor of Science, Civil Engineering | University of Maryland, Clark School of Engineering
Alex joined the firm in 2025 after completing his degree in Structural and Geotechnical Engineering. As part of his studies, he led the reallocation of micro-mobility parking space project at the University of Maryland, showcasing his problem-solving skills. He is proficient in a wide variety of engineering and design applications used for structural analysis, design and construction projects. Alex is also fluent in Polish.
Birthplace:Rockville, MD
Interests:Traveling, bodybuilding competitions and playing ice hockey and golf.

Justin Fox
Structural Engineer
Bachelor of Science in Engineering – Civil Emphasis | Marshall University
Justin joined Linton Engineering in March 2020, having previously worked as a structural designer since graduating from Marshall University in May 2019. His early experience includes work in retail, office, and adaptive re-use. Today, he works primarily on new high-end residential housing, residential renovations, and historic renovation/adaptive re-use projects. Justin is known for his collaboration skills in working closely with the design team. His attention to detail and positive attitude ensures a positive team experience and that clients receive a safe, well-coordinated and code-compliant structure.
Birthplace: Hurricane (HER-A-KIN), WV
Interests: The great outdoors, soccer, cooking and golf.

Dale Goodwin, PE
Senior Structural Engineer
Bachelor of Science, Civil Engineering | Geneva College
Dale has been a part of Linton Engineering for 10 years with a focus on commercial and residential buildings and has eight years of structural engineering experience. His portfolio includes restaurants, mid-rise condo buildings, custom residences, and park pavilions. He has previous experience in analysis, design and inspection of telecommunication towers.
Birthplace: Kingston, NY
Interests: Currently attempting to master the art of blackjack. Enjoy learning about history and the occasional outdoor activity, such as attempting to paddleboard or slicing golf balls into water hazards.

MATTHEW GRAESSER, E.I.T.
Structural Engineer
Bachelor of Science in Civil and Environmental Engineering | University of Maryland, College Park
Matthew’s structural engineering experience encompasses steel, light gauge, and timber-framed structures throughout the DC metro area. His portfolio of work includes the National Air and Space Museum refurbishment, school modernizations, retail units, recreation centers, and multi-unit residential developments, and their associated foundation systems. Proficient in Spanish, Matthew also excels in utilizing a diverse suite of engineering and design applications.
Birthplace: Annapolis, MD
Interests:Watching/playing sports (baseball, basketball, soccer, & volleyball), tabletop boardgames and caring for my two cats, Kit Kat and Willow.

Katie Herrera
Lead BIM Coordinator
Master of Architecture | The University of Kansas
Katie has more than fifteen years of architectural and structural design experience, specializing in custom residential, historical and commercial buildings. A self-proclaimed “BIM Nerd”, she is a consultant, trainer and mentor in Building Information Modeling (BIM), helping dozens of firms up and down the East coast with a lot of time spent in NYC, as well as being a past speaker at Autodesk University. She enjoys the challenge of continuing to push the boundaries of the application of BIM and Computer Aided Drafting and Design (CADD) as it relates to architecture, engineering and construction (AEC).
Birthplace: Small Town, KS
Interests: Computers, camping, fishing, hiking and time with family.

Kidus Ketsela, PE
Structural Engineer
Bachelor of Science, Civil Engineering | Addis Ababa Institute of Technology, Ethiopia
Kidus joined the firm in 2024 and has seven years of experience specializing in residential, mixed-use, commercial, and office buildings. His structural engineering background includes material testing and structural inspections, advanced analysis, and designing structures.
Birthplace: Addis Ababa, Ethiopia
Interests: Playing soccer/basketball and generally spending time with family and friends.

Jeff Laidacker
Sr. Structural Technician and BIM Manager
Associate Degree in Architectural Drafting | Lincoln Technical Institute, Allentown, PA
Jeff has three decades of Building Information Modeling (BIM), Computer-Aided Drafting and Design (CADD) technician and network administration experience. He uses innovative, 3D Modeling with Revit and works with designers, project managers and engineers to translate complex concepts into technical drawings. His expertise ranging from academic, medical and religious to infrastructure and transportation-related structures. He also provides network administration, installation and maintenance of workstations, servers and software, and maintains internal design standards and libraries for the team.
Birthplace: Fairfax, VA
Interests: Fishing, hunting, hiking, canoeing/kayaking, biking and music.

Stephanie Linton
Office Manager
Bachelor degree in Finance I Virginia Tech University
Stephanie has been with Linton Engineering since the founding of the company in 2003. She is currently the office manager. Her experiences include financial analysis, financial management and cost accounting. She has worked for a large government contractor for many years and an engineering firm in Atlanta prior to joining Linton Engineering.
Birthplace: Portsmouth, VA
Interests: She enjoys cooking, reading a good book and traveling to as many places as possible.

Cathy Melcher
Marketing Communications
Reagan Communications Fellow | Certified Change Management Practitioner
Bachelor’s - English and Journalism, Radio/TV Emphasis | New Mexico State University
Cathy has 30 years of marketing communications experience, including 20 years in defense and aerospace engineering. She has worked in the civil, defense, intelligence, commercial and energy industries and managed communications programs for global mergers and acquisitions, and organizational and technological integration initiatives.
Birthplace: Albuquerque, NM
Interests: Avid traveler. The granddaughter of a soldier KIA in WWII, Cathy visited Germany, Belgium and Luxembourg to walk in her grandfather’s footsteps.

Jessica Stratton, PE
Structural Engineer
Bachelor of Science, Civil Engineering | Rensselaer Polytechnic Institute, Troy, NY
Master of Engineering, Structural Engineering | Rensselaer Polytechnic Institute, Troy, NY
Jessica brings more than ten years of structural engineering experience to the team with a focus on high-end residential design, commercial, institutional, and industrial structures using steel, concrete, masonry and wood. She is involved in every phase of the project from design to construction, and enjoys working closely with architects, engineers, and contractors to provide the best product for the client. Her portfolio encompasses residential designs and schools, and previous experience includes hospitals, mixed-use high rises, government facilities, nuclear power plants, and pressurized steel plate structures.
Birthplace: Augusta, ME
Interests: Hiking, cooking, spending time with my dogs and family.

Garrett Sullivan, PE
Senior Structural Engineer
Bachelor of Civil Engineering | Florida State University
Master of Industrial and Systems Engineering | Georgia Institute of Technology
Master of Civil Engineering | Georgia Institute of Technology
Garrett has nine years of structural engineering experience focused on analysis and design in reinforced concrete, steel, masonry, and timber structures. He has worked on new construction, rehabilitation, community and commercial projects to include Suitland High School Science Wing and Auditoriums, Georgetown Preparatory School Athletic Dormitories and Stadium, residential rowhouse and commercial office renovations, and previous experience designing animal habitats at the National Zoological Park.
Birthplace: Valdosta, GA
Interests: Garrett can be found most weekends on a local bike trail. If you see him, give him an energy bar!

Witold Szczepanik, PE
Sr. Structural Engineer
Bachelor of Science, Structural Engineering | Technical University of Gdansk, Poland
Witold has been a part of the Linton Engineering, LLC team since 2004 and is responsible for the structural analysis and design for a wide variety of buildings including churches, educational facilities, residences, commercial facilities, and building renovations. He also has experience in the design and analysis of telecommunication towers.
Birthplace: Poland
Interests: Structural analysis and software development.

Daniel Tracey, EIT
Structural Engineer
Bachelor and Master’s degrees of Engineering, with Honors, Civil Engineering | Stevens Institute of Technology, Hoboken, NJ
Daniel joined Linton Engineering in March 2021 and previously worked as a structural engineer and designer in the New York/New Jersey area. He specializes in building renovations which include both assessment and design. His projects include landmark buildings, sports stadiums, and high-rise structures, and he has extensive damage assessment and forensic investigation experience. Daniel is a member of the American Society of Civil Engineers (ASCE) and he is a dual citizen of the U.S.A. and Austria.
Birthplace: Livingston, NJ
Interests: Former NCAA Division III Varsity Fencing team captain and volunteer assistant coach.

David Watson, PE
Senior Structural Engineer
Bachelor of Engineering, Civil Engineering | Stevens Institute of Technology
David has more than 10 years of structural engineering experience for new construction, renovation and adaptive reuse projects. He performs analysis of new and existing structures, evaluates alternative approaches, develops engineered solutions based on field observations and recommends design improvements with a collaborative client-centered approach. His expertise encompasses educational and government institutions, as well as residential, mixed-use, industrial and commercial structures. His background includes integration of green building techniques, flood mitigation and designs to protect structures.
Birthplace: Oneida, NY
Interests: Traveling to new places, listening to and experiencing live music, supporting the Washington Capitals, spending time and hiking with his dog, Max.

Chungfu Yang, PE
Senior Structural Engineer
Bachelor of Science, Civil Engineering | National Taiwan University, Taipei, Taiwan
Master of Science, Structural Engineering | National Taiwan University, Taipei, Taiwan
Master of Science, Bioengineering | Georgia Institute of Technology, Atlanta, GA
Chungfu has nearly a decade of engineering and structural analysis experience in design of structural components for new construction and existing building rehabilitation. He specializes in using a variety of construction materials for his work, including mild-reinforced/prestressed precast/post-tensioned concrete, structural/cold-formed steel, wood, and masonry. Chungfu collaborates closely with architects, construction contractors, owners, tenants, and drafts people to ensure that safe and design code-compliant projects are delivered on-time and on-budget.
Birthplace: Taipei, Taiwan
Interests: Avid fan of tennis/basketball/baseball – aka Regor Fuderer/Trey Yang on the courts who has a Braves heart. Can’t get enough of his lovely wife/scientist, and most of the time, his three adorable kids.



















