Darrin Barnes Email and Phone Number

◆ Leverage solid technical and leadership skills in overseeing key IT aspects in partnership with the following: ◆ Chief executive officer (CEO) and executive leadership team toward the delivery of excellent patient care through strategic and tactical planning, development, and evaluation of IT infrastructure. ◆ Executive management team in establishing and executing company’s purpose, goals, and values, including high-quality patient-centered care; and ◆ Departmental leadership in making strategic IT decisions and adopting and/or updating technology to simplify organization workflows ◆ Assurance of distributed and centralized clinical and business operations of the organization by strategizing and executing enterprise information systems and programs ◆ Preparation of strategic technology roadmap that enabled seamless deployment of Zero-Trust architecture, Zscaler Cloud Firewall, Azure Hybrid Cloud, Cloud PBX, SharePoint, and Intranet development ◆ Creation of CrowdStrike’s Falcon complete product suite, a solution package that provides anti-ransomware services, proactive threat management, and endpoint protection◆ Spearheading the following cutting-edge initiatives that aided in streamlining the company’s business intelligence as well as information gathering and analysis processes: ◆ Transition of the company from Excel spreadsheet into Tableau visualization software, a true business intelligence solution; ◆ Migration to Office 365 with hosted Exchange Server and Microsoft Teams from on-premise Exchange Server 20196

◆Strategic oversight of office operations, supervisors, and clerks throughout several automation activities, including training of employees on software, hardware, and automation operations ◆Supervision of focal point of contact for issues associated with hardware, software, and telecommunications ◆Key inputs in troubleshooting, product evaluation, and system analysis ◆Facilitation of onsite hardware diagnostics to check infrastructure cabling of local area network (LAN)/wide area network (WAN) and hardware such as routers, switches, servers, mobile devices, laptops, and iPads ◆Identification and analysis of issues related to the United States Census's integrated systems, applications, and computer hardware ◆Provision of leadership and guidance to a team of 5 supervisors and 25 clerks tasked to provide technical support to the Area Census Office with 125 employees and approximately 2,000 field workers using Citrix virtual desktops and applications ◆Utilization of BMC Remedy ticket console in resolving and documenting software, hardware, and system issues; VMware Workspace One in administering more than 2,000 mobile devices; and proprietary U.S. Census asset management system in tracking and documenting more than $3M assets ◆Accountability for the approval of timesheet and weekly work schedule, including extension of employment based on performance ◆Generation and submission of key performance indicator (KPI) and status reports to regional and senior US Census Bureau leadership ◆Instrumental in positioning the IT Department at the top three ranking in Chicago Region in service-level agreement (SLA) set by the Department of Commence for attaining 100% incident completion, 99.2% resolutions accepted, 98.3 first call resolutions, and 100% work order on-time completion ◆Vital role in enabling remote work during the COVID-19 crisis lockdown through configuration and deployment of approximately 500 RSA tokens, as well as remote access kits

◆Delivery of technical consulting to various organizations, such as Groupon, Softchoice, Computer Discount Warehouse (CDW), Joliet Public High School, South Newton High School, Auburn School District 10, Motion Picture Association of American, Chicago Police Department, Illinois Department of Children and Family Services, and Red Hat ◆Employment of technical expertise in taking ownership, coordinating, and carrying out customer, team, and field service personnel support service activities ◆Solid understanding of data center technologies, Windows, Linux, VMware, EMC, and Compellent, as well as EqualLogic, blade technology, and networking. ◆Optimization of customer or internal business processes by defining areas for improvement and leading continuous improvement activities ◆Creation of innovative solutions to address challenging problems, along with administration of contractual support service deliverables and complex service delivery processes ◆Spearheading efforts in boosting service level and operational effectiveness by building and executing proactive maintenance initiatives in line with industry best practices, statistical data, and trends ◆Facilitation of trend analysis and resolution of customer- or Dell monitoring-tool-identified issues ◆Preparation and presentation of quarterly and annual reports to the senior management team of the customer ◆Significant increase in the value of the customer's investment in products and services throughout the end-to-end customer life cycle

◆Management of the company's IT infrastructure project portfolios totaling to more than $10M across Asia Pacific and the United States ◆Leadership and guidance of cross-functional teams on deliverables throughout all project phases and formulation of contingency plans for the project's general health ◆Development of strong relationships with internal and external stakeholders that enabled efficient coordination of critical project information ◆Allocation of tasks and assignments to the members of Information Security, Application Development, and Network Operation teams ◆Supervision of more than 20 indirect reports for merger and project infrastructure ◆Major contribution to the mergers of China law firms Mekenna, Long and Aldridge, and Dasheng ◆Proactive communication of project expectations to team members and stakeholders ◆Collaboration with the management in finalizing IT project portfolio budgets and maintaining CAPEX and OPEX costs under control ◆Expertise in managing and accomplishing various key projects such as the following: Office 365 rollout, SharePoint redesign, and other integration projects; and Willis Tower and Beijing office relocations, security remediation, implementation of universal patch policies, physical to virtual server and firewall migrations, email phishing, and decommissioning of SQL 2000/2005 ◆Generation of $500K annual savings by leading the firewall migration project, from Checkpoint to Palo Alto firewall

◆ Key IT contractor for major organizations across Illinois, such as the Department of Veterans Affairs, House of Representatives, Sprint, AT&T, HP, Black Box Corporation, Walmart, Lowes, T-Mobile, ADP, Northwestern University, Vitamin Shoppe, and Lego Corporation, as well as Starbucks, McKesson, Ross, Michaels, Comcast, AIG, and Bank of America ◆ Provision of technical assistance to IT departments throughout PC refreshes and Windows 7 migrations ◆ Administration of the installation of new computers, equipment, and networks for clients’ main and remote branches ◆ Initiation of efforts in resolving all network connection issues with Cisco, Juniper and SonicWALL firewall(s), routers, and switches ◆ Coordination of the imaging and deployment of more than 500 computers for Virginia Hospital in Hines, Illinois ◆ Continuous delivery of first-rate customer service that led to 100% satisfaction from more than 430 clients ◆ Successful upgrade of technical infrastructure of the Congregational Church of Park Manor that yielded 99.5% increase in up time; transition from legacy finance to a hosted solution that produced over $25K savings in consultancy fees; and reconciliation of Microsoft Office licenses that eliminated $100K in penalties ◆ Hands-on support to the IT Department of the House of Representatives in the recovery of approximately $2M assets from a former congressman's office ◆ Installation of a firewall, end point protection, and Windows Server 2012 for the Monee Township Assessor's office that supported 250 users

◆ Delivery of technical support to staff working remotely and configuration of iPhone and Android phones that enabled them to receive corporate emails ◆ Collaboration with the CEO on SLA for government and private sector contracts ◆ Responsibility for the approval of software, network, and computer hardware purchases amounting to more than $750K ◆ Full accountability for IT corporate standards, asset management, project planning and implementation, budgeting and forecasting, and customer relationship management ◆ Strategic direction of a team of 5 specialists and 40 contractors in providing services to IBM and its clients ◆ Development and strict implementation of security policies and processes, as well as security training for executives, remote employees, and IT personnel ◆ Driving force behind the attainment of the thousands of dollars in savings such as the following: Nearly $50K annual savings through hosting of Microsoft Exchange email accounts and deployment of Office 365; and ◆ More than $25K savings in telecommunications costs by building a VoIP phone system for the corporate office in Naperville, Illinois