Leadership
Experts With Business Acumen
Meet Our Leadership Team
Walter E. Allen
CEO & President
Clair Song
Vice President
As Vice President, Clair Song, P.E., draws on more than 20 years as a structural engineer and program manager to lead Acumen’s public agency programs. She holds civil and structural engineering degrees from UC Berkeley and is a licensed Professional Engineer in California, Nevada, Washington, Maryland, and Georgia. Clair serves on BART’s Business Advisory Council and the Caltrans State-Wide Small Business Council (alternate), is Vice President of AAAE Northern California, and values ethics, transparency, and high standards.
Elizabeth Chege
Controller
Chukwuma Umolu
Subject Matter Expert – Rail
Chukwuma Umolu, P.E., is Acumen’s subject matter expert for rail, bringing more than 40 years of experience on high-speed rail, heavy rail, and FTA-funded transit programs. A registered civil engineer in California and Georgia, he has served as track lead and Engineer-of-Record on California High-Speed Rail, The Portal, BART, LA Metro, and Miami-Dade major projects. He holds civil engineering degrees from Stanford University and Brown University and is a member of the Conference of Minority Transportation Officials
Philip Adams
Subject Matter Expert – Quality Assurance & Rail Operations
Philip Adams brings four decades of public transit rail experience to his role as Acumen’s subject matter expert for quality assurance and rail operations and maintenance. A former Director of Transportation and Deputy General Manager at San Francisco Muni, he has led quality assurance programs for Denver RTD’s Eagle P3 and Sound Transit and served as a quality assurance expert for FTA project oversight. He also managed system safety and security for Caltrain’s electrification project.
Janelle Wong
Subject Matter Expert – Grants & Technical Writing
Janelle Wong uses her Juris Doctor in taxation and 24 years of experience as a grant and technical writer to lead Acumen’s technical writing and grant services. A former tax consultant at Accenture and Grant Thornton and former Executive Director of the San Francisco Bicycle Coalition, she turns complex regulations into clear, persuasive writing. Janelle serves on the board of San Francisco Transit Riders and on the MTC-ABAG Community Advisory Council and supports diversity and inclusion in transportation.
Marlene Barrett
Human Resources Manager
From the very first phone call or email, Marlene Barrett makes it a point to advocate for the well-being of potential candidates and employees. As human resources manager for over two decades, she works closely with management and leads the search for and onboarding of experts and support personnel to ensure that departments are staffed to match anticipated business demands. Some of her professional achievements include supporting diversity and inclusion in the workplace and going to bat for employees to ensure they have a competitive benefits package. Marlene values a strong work ethic and is renowned for her attention to detail and excellent communications, problem solving, interpersonal and organizational skills.
Douglas Van Blaricom
Senior System Engineer
Doug Van Blaricom is a senior systems engineer with more than 25 years of experience in network design, embedded systems, software development, and fare collection technology for transit agencies. At BART, he has developed Java and Kafka-based software for Communications-Based Train Control projects, designed smart card readers, and built custom test equipment for fare and wayside systems. Doug has also provided technical reviews for WMATA’s SmarTrip program and evaluated automation of Alameda County’s three movable bridges.