FINAL PRINCIPAL PROMOTIONS

Marc Gallagher New York, NY

Lori Simpson Oakland, CA

Chris Hager Philadelphia, PA

DJ Hodson San Francisco, CA

Rory Johnston Parsippany, NJ

Ryan Linthicum Arlington, VA

Daniel Miola Parsippany, NJ

AnnMarie Vigilante Doylestown, PA

Scott Walker Oakland, CA

MANAGING PRINCIPALS

ASSOCIATE PRINCIPALS

PRINCIPALS

Daniel R. Miola, PE, LEED AP Principal Parsippany, NJ

Sony David Dallas, TX

Christopher Cirrotti Parsippany, NJ

Jack Garner Austin, TX

Luis Berroteran Denver, CO

Many of New Jersey’s top real estate developers count on Dan Miola to handle the projects that are transforming the Garden State. Dan specializes in large, complicated land development projects, often on sites with major engineering and environmental challenges and mission critical deadlines. He has extensive experience in multiple sectors, and has become a leader in the e-Commerce, cold storage, and multi-family markets. Some notable projects include the Goya Foods Headquarters in Jersey City and the FreezPak Logistics Facility in Elizabeth. Dan is an active member of NAIOP and is heavily involved in the ACE Mentor Program, serving on the Board of Directors for the New Jersey Chapter.

Lori A. Simpson, PE, GE Managing Principal Oakland, CA

Lori Simpson is the Managing Principal in charge of Langan’s Oakland and Seattle offices, and is among the firm’s West Coast leaders. Considered an expert on deep foundations and ground improvement, Lori specializes in sites with challenging subsurface conditions, most notably the massive Mission Bay redevelopment in San Francisco.

Ryan C. Linthicum, PE, LEED AP Managing Principal Arlington, VA

Ryan Linthicum started Langan’s Arlington office, which now has nearly 50 employees supporting a highly successful practice in the Washington, DC region. Under Ryan’s leadership, Langan has worked for nearly every major federal agency and has helped design more than 120 US embassies, consulates, and diplomatic facilities in more than 60 countries.

Rory S. Johnston, PE, BCEE Managing Principal Parsippany, NJ

Rory Johnston is a Managing Principal and the Director of Health & Safety at Langan. With over 35 years of experience working on large-scale projects throughout the United States and internationally, Rory is a proven engineering expert trusted by major oil & gas, chemical, mining, aviation, pharmaceutical, and real estate development clients.

Christopher M. Hager, PE, LEED AP Managing Principal Philadelphia, PA

Under Chris Hager’s leadership, Langan has become a trusted consultant to the design and development community in Philadelphia and the surrounding area. Some of his team’s most notable projects include the Pavilion – Penn Medicine, the Philadelphia Eagles Lincoln Financial Field Expansion, Race Street Pier, and multiple developments on the University of Pennsylvania campus.

Donald J. “DJ” Hodson, PE, LEED AP Managing Principal San Francisco, CA

DJ Hodson leads Langan’s land development practice in California, consisting of a diverse group of engineers working in sectors ranging from multi-family and mixed-use to e-Commerce and data centers to sports and entertainment. He also has vast experience on complex landfill redevelopment projects, and supports many of Langan's international projects in the Middle East and Europe.

Marc Gallagher, PE, LEED AP, Assoc. DBIA Managing Principal New York, NY

Marc Gallagher is one of the four main leaders of Langan’s New York City office. He is a geotechnical engineer with experience directing multidisciplinary teams on complex projects such as Hudson Yards, Lincoln Center, and the United Nations in New York, and international PPP projects in Iraq, United Arab Emirates, and Greece.

Luis Berroteran, PE Associate Principal Denver, CO

Langan’s Denver team topped 30 people this month, but it started with one – Luis Berroteran. Luis relocated from Langan’s New Jersey headquarters in 2017 and quickly became a fixture in Colorado’s real estate development industry. Through his leadership, Langan’s footprint has grown substantially in the region and the Denver office has flourished. Some of his notable projects in Colorado include two massive e-Commerce fulfillment centers, which garnered consecutive NAIOP Project of the Year awards. These efforts have not gone unnoticed; in 2020, ENR Mountain States named Luis a Top Young Professional.

Christopher Cirrotti, PE, PP, CME, LEED AP BD+C Associate Principal Parsippany, NJ

In New Jersey healthcare circles, no engineer has a better reputation than Chris Cirrotti. With over 30 years of experience in the industry, Chris has seen and done it all. He currently leads some of the largest hospital design projects in the state for organizations such as RWJBarnabas Health, Hackensack Meridian Health, and Virtua Health, among others. Since joining Langan in 2019, he has grown a team of 15 staff and branched into other major real estate developments in entertainment, mixed-use, multi-family, and e-Commerce. In addition, Chris serves on the Rutgers University Civil Engineering Industry Advisory Board and is actively involved with both the American Society for Healthcare Engineering and NAIOP.

Sony David, PE, LEED AP Associate Principal Dallas, TX

Sony David established himself as a go-to consultant specializing in difficult projects in New Jersey and New York before relocating to Langan’s Dallas, Texas office in 2021. From huge design-build K-12 projects, to multiple buildings for Bristol Myers Squibb, to M Station in Morristown and Liberty Science Center in Jersey City, Sony demonstrates the attention to detail required to complete challenging projects. Now in Dallas, Sony is replicating his success in the Northeast by supporting projects in e-Commerce, higher education, and healthcare, while helping to lead Langan’s rapid growth in the Lone Star State. He also continues to lead the firm’s national practice in demolition engineering. In 2019, ENR New York named Sony a Top Young Professional, and he continues to live up to that honor.

Jack H. Garner, PE Associate Principal Austin, TX

When Langan expanded into Austin, Texas last year, the firm gained an incredible leader in Jack Garner. For close to 20 years, major land development companies and architectural design teams in Texas have turned to Jack to lead K-12 and residential projects throughout the state. Jack’s most prominent projects fall into two growing markets: master-planned communities and education. He particularly excels at managing and guiding engineering teams that collaborate seamlessly with partners and deliver projects that exceed expectations. With Jack at the helm, Langan’s Austin office has already doubled in size, and the firm’s footprint around the city will continue to grow.

AnnMarie Vigilante, PE Principal Doylestown, PA

Langan engineers may not be widely known as consultants on large highway projects, but AnnMarie Vigilante is the exception. Her traffic engineering expertise and effective leadership made the PA State Route 33/Main Street Interchange project possible. The critical infrastructure project transformed the region and made AnnMarie the go-to consultant for future developments. Yet she is by no means bound to one area; AnnMarie leads traffic projects across the state of Pennsylvania and beyond, especially in the booming e-Commerce sector. AnnMarie is passionate about giving back to the industry and her community, which has resulted in numerous honors. Most recently, she was named a 2022 Take the Lead Lehigh Valley honoree by the Girl Scouts of Eastern PA and a 2020 Lehigh Valley Woman of the Year by the Leukemia & Lymphoma Society.

Scott A. Walker, PE, GE Principal Oakland, CA

Scott Walker is a well-respected geotechnical expert in the San Francisco Bay Area and a leader in Langan’s Oakland office. Scott provides geotechnical and seismic engineering solutions for a range of complex projects along the West Coast, with a particular expertise in deep foundation design and excavations in the Bay Area. His projects range from tall buildings such as The Avery, a 56-story high rise, to cultural centers like the San Francisco Museum of Modern Art, to sports facilities like Levi’s Stadium, home of the San Francisco 49ers. His most recent work involves assisting Langan’s operations and continued expansion in Seattle, after helping establish an office there in 2019.

Announcing...

Leadership Promotions: Principals

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