John A. Ziu

John A. Ziu serves as a Contracting Officer within the Contract Administration Services Division (70RCAS) of the Department of Homeland Security’s Office of Procurement Operations, where he manages the acquisition of critical professional, scientific, and technical services essential to national security operations. His portfolio centers on supporting research and development in physical and engineering sciences, cybersecurity, and systems engineering, ensuring the integrity and readiness of DHS mission-critical infrastructure. Ziu specializes in complex service-based procurements under FAR Part 12 and Part 15, often utilizing indefinite-delivery, indefinite-quantity (IDIQ) contracts and performance-based acquisition methods to align vendor deliverables with operational outcomes. While specific contractor names are not publicly disclosed, Ziu maintains a robust network of vendor partnerships with firms delivering advanced computing, telecommunications, and professional services. His working relationships emphasize technical proficiency, compliance with cybersecurity standards such as NIST SP 800-171, and the ability to scale solutions across distributed government environments. He routinely engages with both large prime contractors and specialized small businesses to ensure innovation and mission adaptability. Ziu’s procurement patterns reflect a strong preference for open competition, with 87.5% of acquisitions conducted without set-asides. However, he consistently allocates 12.5% of his portfolio to Total Small Business Set-Asides under FAR 19.5, demonstrating a deliberate commitment to fostering small business participation without relying on socioeconomic programs such as 8(a), HUBZone, or SDVOSB. His approach prioritizes capability and capacity over socioeconomic status, while still ensuring equitable access for qualified small firms. His primary NAICS focus spans computer systems design, custom programming, and wireless communications equipment manufacturing, reflecting a technical domain centered on IT modernization, secure communications, and engineering support services. Ziu’s expertise lies in procuring mission-critical software development, systems integration, and professional organizational services that directly enhance DHS’s operational and cybersecurity posture.