Angelina Castillo

Angelina Castillo serves as a procurement specialist within the Engineering Services agency of the City of Modesto, California, where she supports the planning, design, and oversight of critical public infrastructure projects. Her role centers on managing technical service acquisitions aligned with the agency’s mission to deliver safe, resilient, and sustainable civic assets. She routinely handles contracts for engineering analysis, geotechnical testing, materials certification, and laboratory-based compliance services, ensuring all procurements adhere to state and federal regulatory standards. Castillo works closely with project engineers and compliance officers to align contracting strategies with capital improvement timelines and technical specifications. While no specific contractor relationships are currently identifiable in the procurement record, Castillo’s acquisitions consistently engage qualified testing laboratories and independent engineering service providers with specialized credentials in civil, structural, and environmental analysis. Her procurement approach emphasizes technical competency, accreditation compliance, and performance-based deliverables, fostering long-term vendor partnerships grounded in quality assurance and regulatory adherence. Castillo’s contracting portfolio reflects a strong preference for open competition, with 100% of procurements designated as “No Set-Aside.” This indicates a focus on technical merit and capability over socioeconomic classifications, though it does not preclude participation from small, disadvantaged, or veteran-owned firms that meet stringent qualification criteria. Her approach prioritizes objective evaluation of technical proposals, ensuring the most qualified service providers are selected regardless of business size or certification status. Her primary procurement focus is on NAICS 541380 — Testing Laboratories and Services — encompassing soil and material testing, concrete and asphalt analysis, environmental sampling, and non-destructive evaluation. She procures specialized laboratory services essential to infrastructure validation, including ASTM and AASHTO-compliant testing, quality control documentation, and third-party certification. This technical domain requires deep expertise in regulatory frameworks governing public works construction, making her a key steward of engineering integrity across Modesto’s capital improvement initiatives.