David Han Email & Phone Number

New York City Metropolitan Area

I head up the IT/Security org. ----● Designed, implemented, and maintenance of TMM’s networks, including managed switches, routers, firewalls, storage systems, and overall infrastructure.● Implemented IAM solutions using Okta and SAML/SCIM provisioning, ensuring secure and streamlined user access.● Configured Mobile Device Management (MDM) solutions (Jamf)● Lead monitoring and optimization of performance and security networks at HQ and field site locations, leveraging SolarWinds, SentinelOne, SonicWall, and custom alerting in a globally distributed, hybrid-cloud environment.● Design, implement, and maintain secure and scalable network architectures, with a specific focus on GCP and Azure.● Configuring, optimizing, and troubleshooting OpenVPN and L2TP/IPSEC solutions to provide secure remote access.● Implementing Zero Trust Network principles to ensure least privileged access and robust authentication mechanisms.● Configure and maintain Ubiquiti networking equipment, ensuring high performance and security.● Collaborate with CISO and Engineering teams to ensure network solutions align with organizational security policies and standards, and overall IT solutions iterate alongside new feature development.● Establish incident response and disaster recovery plans; identify and resolve technical issues efficiently and urgently, maintaining high availability for Engineering and key clients

New York, New York, United States

I advise small- and medium-sized businesses with custom, plan-driven solutions as they establish their footprint, scale their org, or decide to reimagine how they work. Knowledge and experience in: cloud and technology strategies, hardware configuration and installation, upgrades, migrations, integrations, trainings, and more.

New York, New York, United States

I head up the technology org at BPL, establishing our initial hardware / digital technological systems to support 0-1 growth, and now iterating on strategy to allow for scaling beyond that. I lead on the Technology strategy and tactics we employ regarding: IT infrastructure, systems performance, network and database configuration, interfaces, employee and client onboarding/offboarding, device management and provisioning infrastructure, tool access management, and more to improve our productivity, capital efficiency, and down times. I cover anything from crawling under a desk to fix a computer or instrument, to writing up a Technology Plan or drafting an IT budget :)-------● Develop the strategy re: IT infrastructure, network and database configuration, interfaces, device management & provisioning infrastructure, tool access management, and more.● Designed cloud infrastructure (Amazon ECS/AWS) and launched instrument analyzer interfaces.● Configured and maintained Cisco/Meraki networking equipment, ensuring high performance and security.● Spearheaded deployment of lab database (Orchard Harvest LIS), allowing centralized management of patient data.● Integrated lab database with middleware interface engine (LOS / Copia) allowing swift enablement of new interfaces & accessibility to EMR (electronic medical records) software (eCW), reducing new-client onboarding times by 50%.● Setup medical billing interface, allowing insurance billing across 25+ carriers.● Designed and launched reference laboratory interface, improving business continuity and introducing ability to leverage reference labs to increase TAM, and improve validation testing when adding new tests and instruments.

New York City Metropolitan Area

I planned, implemented, and iterated on initiatives spanning data server configurability, hardware setup & management, and network infrastructure for a healthcare client with 150+ onsite and remote end-users. Some of the things I worked on, included:- Building a new domain server and more robust host for the Lab's Information System (LIS)- Planing and executing the addition of a new lab site - Monitor and troubleshoot network issues including routers, switches, VPNs, WLAN for 7 area offices- Improving business efficiency and security while reducing network downtimes by 80% through design and implementation of site-to-site VPNs- Implement an internal support ticket system

Greater New York City Area

Security training; selecting and implementation of antivirus softwares; configuring hardware; OS upgrades; troubleshooting network issues (routing, switches, VPNs, WLAN); building new domain servers; network configuration; device management

Had a chance to explore some fantastic countries. Ask me about it!

Brooklyn, Ny

-Level III software and hardware support-Hardware: component level repairs (water damage, physical damage, faults in manufacturing, BGA repair, etc.); upgrades; micro-soldering for phones and tablets-Software: install and upgrades; virus and malware; data recovery and preservation; diagnostics and repair; troubleshooting

Brooklyn, Ny

-Managed customer relationships, providing service and customer support during store visits, dispatches, or field visits-Created and implemented new ticketing system to catalogue and track customer repairs-Sole, in-house technician, responsible for diagnosing errors and technical problems and implementing problem solutions, so as to minimize second field tickets