Daryl currently manages the design, implementation, and maintenance of high-performance computing (HPC) systems at the University of California’s Helen Diller Family Comprehensive Cancer Center. He focuses on optimizing system performance and reliability to support the mission-critical work of research scientists. Collaborating closely with researchers, he delivers tailored, scalable solutions that meet complex computational demands. Daryl has led the migration of legacy infrastructure to modern HPC architectures, significantly improving efficiency and reducing costs. He also works directly with vendors to coordinate hardware procurement and oversee Data Center maintenance, ensuring long-term system health and operational continuity.

Consultant to BHP, a multinational mining, metals, and petroleum public company on all things related to RedHat Enterprise Linux, Microsoft Windows, and Enterprise storage. Responsible for intercommunicating with diverse teams such as Help Desk, DevOps, Cyber Security, and Leadership for day-to-day Geoscience operations. Organized and participated in weekly and monthly meetings around all ongoing projects and operations. Took the lead to triage and delegated tasks for any significant issues or outages between a pair of colocated data centers for production and disaster recovery, keeping mission-critical systems online and available. Critical in merging BHP’s petroleum assets to Woodside Energy, taking charge of and following up with all significant Change Requests with several Project Management team leaders.

Responsible for DNS and SSL certificates on over 900 domains across Houston Chronicle’s parent company, Hearst Digital Newspapers. Operated multiple Bind9 DNS nameservers and several redirect servers to handle the various marketing campaigns for local markets across the United States. Purchasing domains, transferring domains, and renewing SSL certificates promptly, avoiding any production downtime.

Oversaw installation, maintenance, and operation for all aspects of an on-premises data center comprised of ~20K servers configured for high availability and high-performance computing, including 100PB of on-site storage. Played a large role in multiple functions, focusing on Debian GNU/Linux supporting Seismic Image Processors, Research and Development teams, and Management with IT support. Coordinated with 15+ team members on scripting and automation to improve core business and optimize performance.

• Provided physical and remote support for 8K+ CPU servers, 8K+ GPU servers, 400+ storage machines, and infrastructure, including equipment installs, upgrades, and diagnosis.
• Positioned company on the leading edge and maintained the US’s largest immersion cooling system, providing on-site tours to clients and investors.
• Encouraged a high standard of excellence and helped develop top talent, assisting with interviewing and onboarding all staff for programming and Unix team.
• Championed open-source alternatives that reduced cost and streamlined operations, working at an enterprise scale in systems development and administration.

Maintained 3M+ websites with direct responsibility for keeping shared Linux web, mail, and MySQL servers online and accessible. Promoted rapidly from Level 1 Linux Administrator progressing to Account Restores queue and then Reboot Triage queue. Located resource choke points from general user abuse of shared resources on 5K+ public-facing servers.

• Promoted operational efficiency and optimized performance, including preparing for high traffic following broadcasts or promotions via massive platforms such as Good Morning America, SlashDot, Reddit.

• Maintained global servers at remote data centers across 10+ locations in India, Singapore, Brazil, Netherlands, and the US.
• Served as a resource for 200 system administration employees, mentored new staff, and assisted with onboarding.
• Mitigated massive distributed denial-of-service (DDoS) attacks and reflection attacks.

• Delivered outstanding service in dealing with direct access to clients and providing support to customers.
• Worked with a diverse range of customers, including large and small businesses, to troubleshoot and repair server issues, pinpoint root causes, and implement effective prevention measures for the future.