Joelle Mascarenas

Joelle Mascarenas serves as a key procurement lead within the DSC Contracting Services Division of the National Park Service, overseeing the acquisition of critical infrastructure services essential to preserving and modernizing America’s national parks. Her work centers on managing complex construction, engineering, and environmental compliance contracts for historic preservation, utility system upgrades, and facility rehabilitation across ecologically sensitive and remote landscapes. She ensures acquisitions align with federal regulations and the NPS’s mission to protect cultural and natural resources while enhancing public access and safety. Her portfolio includes high-stakes projects requiring specialized technical expertise in civil engineering, heritage restoration, and sustainable construction practices. Mascarenas maintains longstanding relationships with a core group of contractors including HDR Engineering Inc., Johnson, Mirmiran & Thompson, Inc., McKenzie Construction & Site Development LLC, BookCliff Partners, LLC, and Aleut Construction LLC. These partnerships reflect a preference for firms with proven experience in federal environmental projects, remote-site logistics, and historic structure rehabilitation. Her contracting approach emphasizes collaboration with vendors possessing deep domain knowledge in park-specific challenges, such as working within protected areas under strict environmental constraints and adhering to the Secretary of the Interior’s Standards for Rehabilitation. Her procurement strategy demonstrates a strong commitment to small business participation, with 76.5% of awards structured as total small business set-asides under FAR 19.5. She consistently prioritizes socioeconomic programs, including a notable focus on service-disabled veteran-owned small businesses, reflecting a deliberate effort to foster equitable access to federal contracting opportunities. This pattern underscores her alignment with federal goals to empower underrepresented businesses in mission-critical infrastructure work. Mascarenas specializes in NAICS categories including 236220 (Commercial and Institutional Building Construction), 237990 (Other Heavy and Civil Engineering Construction), and 212321 (Construction Sand and Gravel Mining). Her acquisitions frequently involve site development, erosion control, utility infrastructure, and materials sourcing for park facilities—demanding technical proficiency in geotechnical engineering, sustainable land use, and compliance with NEPA and NHPA regulations.