Full-Time
Posted on 3/14/2026
Engineering firm providing holistic building solutions
$79.6k - $92.6k/yr
Los Angeles, CA, USA
In Person
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Simpson Gumpertz & Heger (SGH) is a national engineering firm that provides comprehensive advisory services for complex building and structural challenges. It covers structures and building enclosures, advanced analysis, code consulting, and applied science and research to help clients achieve better performance. SGH works by using multidisciplinary teams across its eight U.S. offices and more than 600 employees to deliver fully integrated engineering solutions; projects combine structural design, envelope performance, risk assessment, and scientific study to address real-world problems. The company differentiates itself through its broad, cross‑disciplinary scale, nationwide presence, and focus on holistic, research‑backed guidance rather than isolated services. Its goal is to deliver unrivaled, end‑to‑end solutions that drive superior performance for clients facing their most complex engineering challenges.
Company Size
501-1,000
Company Stage
N/A
Total Funding
$194.5M
Headquarters
Waltham, Massachusetts
Founded
1956
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Health Insurance
Flexible Work Hours
Paid Vacation
401(k) Company Match
401(k) Retirement Plan
Performance Bonus
IIBEC honors Atrium on Commonwealth. The International Institute of Building Enclosure Consultants (IIBEC) recognized the Atrium on Commonwealth with a 2026 Excellence in Building Enclosure Consulting (EBEC) Award in the Building Enclosure category. The award was presented on 14 March 2026 during IIBEC's International Convention & Trade Show in Sacramento. Simpson Gumpertz & Heger (SGH) provided building enclosure and structural engineering services for the project. SGH Principal Christopher Grey accepted the award on behalf of the project team. "Projects like this highlight the value of taking a strategic, long-term approach to existing buildings," said Chris. "By understanding the structure and its history, we were able to help the owner modernize the property in a way that will serve them well for years to come." Located at 1079 Commonwealth Avenue in Boston, the four-story concrete building was originally constructed in the early 20th century for the Packard Motor Car Company and later converted into apartments, serving as an early example of adaptive reuse in the city. SGH's involvement began in 2019 with an initial condition assessment and make-safe work. This evolved into parking garage and roof replacement projects, followed by a $100 million multiyear phased effort that included roof replacement, garage repairs, and facade recladding, coordinated with a full interior gut renovation. The project was a major success, transforming, renovating, and upgrading the approximately 300,000 sq ft building. SGH collaborated with Margulies Perruzzi (design architect), The Hamilton Company (owner and interior architect), and Hamilton Construction Management. In addition to the award recognition, several SGH team members participated in the convention, contributing to technical sessions and engaging with the building enclosure community.
Structural design expert Nick Wetzel joins SGH. Wetzel specializes in aerospace infrastructure and seismic engineering. Simpson Gumpertz & Heger (SGH) welcomes Nick Wetzel back to the firm as a Project Director, enhancing its design capabilities for aerospace infrastructure and specialty structures and bolstering its seismic engineering expertise. He joins SGH's Structural Engineering Division in Southern California, where he will partner closely with SGH peers and clients across the United States and globally. Nick specializes in managing and delivering complex aerospace projects from conception to construction. He has led multidisciplinary teams across architectural, structural, and civil disciplines to design new launch complexes and rocket testing facilities, as well as retrofit mission-critical facilities. This work spans new and existing steel and concrete systems, large hangars and support buildings, and specialized equipment and pipe support structures, including fast-tracked assessment, upgrade, and repair efforts. He also has extensive experience designing and retrofitting other critical structural systems, including considerations before and after large seismic events. "It is great to be back at SGH and to help build on the firm's reputation for solving challenging engineering problems," said Nick. "I am excited to partner with our many experts across the firm to deliver creative and responsive solutions for our clients." Nick began his career with SGH and spent nearly a decade in the firm's San Francisco Bay Area office before relocating to the California Central Coast. Known for his effective communication, teamwork, and leadership, Nick applies sound engineering judgment to manage technically complex projects, adapt to evolving requirements, and deliver unique solutions for clients while mentoring junior staff to support their professional growth. He also values sharing his expertise and giving back to the engineering profession through teaching experiences at California Polytechnic State University, San Luis Obispo, and professional membership in the American Society of Civil Engineers 7-16 Seismic Task Committee and Base Isolation and Energy Dissipation Sub Committee, Structural Engineer's Association of Northern California, and American Institute of Steel Construction. Nick is a registered Professional Engineer, and he received his master's and bachelor's degrees in civil engineering from Cal Poly San Luis Obispo. Looking for a reprint of this article? From high-res PDFs to custom plaques, order your copy today! JOIN TODAY to unlock your recommendations. Already have an account? Sign In
Structural Design expert Han Xu joins Simpson Gumpertz & Heger. WALTHAM, Mass., Nov. 19, 2025 /PRNewswire/ - Simpson Gumpertz & Heger (SGH) is pleased to welcome Han Xu to the firm as a Principal, bolstering its structural engineering and consulting expertise. He joins SGH's New Structural Design Division in the Boston, MA, area, where he will partner closely with SGH peers and clients throughout New England. Han brings more than twenty-five years of experience in the industry designing modern structures made of steel, concrete, masonry, and timber. He has extensive experience leading structural design and construction efforts for large, multidisciplinary projects in the commercial, residential, educational, cultural, health care, and infrastructure sectors. Focusing on collaboration as a path to successful project delivery, Han seeks opportunities to bring together clients, contractors, and owners in senior leadership roles. His work also includes adaptive reuse and renovation projects for various building types. "I am excited to join SGH and partner with colleagues and industry leaders throughout the firm," said Han. "I look forward to tackling many exciting projects with my team members and delivering exceptional results for our clients." A committed leader who is passionate about giving back to the profession, Han actively mentors team members and serves on technical committees and boards in management positions. He currently serves as President of the Board of Directors for the Structural Engineers Association of Massachusetts (SEAMASS); contributes to the Structural Advisory Committee for the Board of Building Regulations and Standards (BBRS); and participates as a member of the American Society of Civil Engineers (ASCE), Boston Society of Civil Engineers (BSCE), and Structural Engineering Institute (SEI). Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for its clients' most complex challenges. eNews Park Forest, Inc. leverage its collective and diverse experience, technical expertise, and industry knowledge of structures and building enclosures, advanced analysis, performance & code consulting, and applied science & research to deliver unrivaled, comprehensive solutions that drive superior performance. With 750 employees in ten office locations throughout the United States, SGH's industry-leading teams constantly seek to advance the meaning of what's possible. For more information, please visit www.sgh.com. View original content to download multimedia:https://www.prnewswire.com/news-releases/structural-design-expert-han-xu-joins-simpson-gumpertz-heger-302619696.html SOURCE Simpson Gumpertz & Heger
Millennium Tower retrofit receives NCSEA, SEAOC, SEAONC Structural Engineering Excellence Awards. The Millennium Tower foundation upgrade project at 301 Mission Street in San Francisco continues to earn recognition for its innovative design and engineering achievement. The National Council of Structural Engineers Associations (NCSEA) honored the project with two top prizes in the 2025 Structural Engineering Excellence (SEE) Awards program. Led by Simpson Gumpertz & Heger (SGH), the project received the Award for Excellence in the Forensic/Retrofit/Rehabilitation category and was also named a co-winner of the Structure of the Year - 2025 Award, recognizing the most outstanding project across all categories. SGH Consulting Principal Ron Hamburger and SGH alum Lachezar Handzhiyski accepted the award at the 2025 Structural Engineering Summit on 16 October 2025. Earlier this year, the project also received top honors from the Structural Engineers Association of California (SEAOC) and the Structural Engineers Association of Northern California (SEAONC). SEAOC honored the project with the Excellence Award in the Retrofit/Alteration category and named it Project of the Year, the organization's highest distinction recognizing outstanding structural engineering achievement statewide. SEAONC bestowed an Engineering Excellence award in the Retrofit/Alteration category. The Millennium Tower is a 58-story luxury condominium completed in 2009. Located in downtown San Francisco, the building is founded on piles bearing in dense sands approximately 90 ft below grade, underlain by soft Bay Area clay soils. Over the following decade, the structure experienced approximately 17 in. of settlement and 17 in. of tilt toward the northwest - far exceeding initial geotechnical predictions. To address these issues, SGH developed a technically innovative and less invasive retrofit solution that involved installing 18 new 500-ton piles along the building's north and west sides, extending to bedrock to arrest further settlement and enable gradual recovery of tilt. The two-year effort was completed in September 2023 while the building remained occupied. Early monitoring results show that the retrofit has successfully stabilized settlement and initiated gradual tilt recovery, validating the design's effectiveness. "Delivering this retrofit required creative thinking and steadfast teamwork," said SGH Consulting Principal Ron Hamburger, who led the project. "Despite the complexity and intense public attention, the project team remained focused on the technical issues and executed a solution that stabilized the structure and restored trust in its long-term performance." SGH partnered with the Millennium Tower Association, Slate Geotechnical Consultants, and Shimmick Construction to complete the project.
Simpson Gumpertz & Heger (SGH) will once again join global energy leaders at the Gastech Exhibition & Conference, taking place 9 - 12 September 2025 in Milan, Italy.