John Kesoglou Email & Phone Number

Irvine, California, United States

• Oversee the management and optimization of on-premise and Azure cloud infrastructure; • Lead the seamless migration of Office 365 acquisitions into the primary tenant • Configure and enforce robust security measures, including Data Loss Prevention, Compliance, and Anti-Phish/Anti-Spam policies • Spearhead the creation of Transport Rules and take charge of managing tenant allow/block lists• Establish a robust Azure presence to facilitate the "lift and shift" of servers into the Azure Cloud environment • Effectively transition users from traditional file servers to OneDrive, enhancing data access and collaboration • Drive infrastructure upgrades, including Domain, DNS, DHCP, and server migrations to new builds, while implementing a new Certificate Authority Authentication.• Adhere to ITIL framework principles, ensuring rigorous change control processes, efficient ticket management, and adherence to SLAs

Klamath Falls, Oregon, United States

• Orchestrated the architectural planning and design of a 5000 sq ft Datacenter;• Collaborated closely with city officials and the power company to meet infrastructure requirements;• Spearheaded the construction and design of robust network and server infrastructure, catering to IAAS, PAAS, SAAS, and DRAAS solutions across Finance, Government, and Healthcare sectors;• Ensured strict compliance with industry standards, including HIPAA, SOX, FCS, ISO, and CJIS, throughout all technical development initiatives;

Irvine California

- Oversaw the complete cloud infrastructure.- Led the redesign of the Active Directory and implemented Local Administrator Password Solution (LAPS) post-Ransomware incident. Introduced a multi-child domain structure and seamlessly integrated it with both virtual and physical hardware.- Spearheaded the transformation of the storage infrastructure.- Effectively managed the day-to-day operations of a multi-tenant Exchange environment.- Successfully orchestrated customer migrations to O365 and established a single tenancy system for simplified management.- Provided comprehensive Root Cause Analyses (RCAs) and technical assessments for complex issues.- Adhered to change management protocols and diligently maintained a ticketing system.

Irvine, Califronia

Collaborated with teams to design and implement critical business systems in strict alignment with the company's strategic direction.Took charge of diagnosing and resolving intricate issues related to Microsoft Exchange, mail routing, mobility, and Windows networking, demonstrating exceptional troubleshooting skills.Effectively managed the day-to-day Microsoft Exchange messaging operations following an O365 deployment.Led the dismantling and removal of an Exchange 2010 environment.Provided valuable root cause analyses, incident management, and maintained clear communication with clients, partners, and service team members.Actively participated in project engagements, offering technical mentorship to team members, and played a key role in architecture reviews and strategic development initiatives.Exhibited strong hands-on technical proficiency, coupled with an analytical problem-solving mindset, a strong focus on delivery, and unwavering client orientation.Engaged in after-hours and weekend work on a rotational basis with team members.Leveraged Exchange PowerShell cmdlets to enact essential changes in the O365 environment.Successfully upgraded over 60 branches with new server hardware, expertly installing and configuring ESX, and executing remote virtual machine migrations between servers.Followed the company's implementation of the ITIL Framework, encompassing Change Management, Ticket Management, Service-Level Management, Knowledge Management, and Problem Solving Management.

Irvine, California

Led the comprehensive systems engineering efforts for both the organization's headquarters and more than 60 branches within a prominent financial services institution.Formulated and executed strategies to enhance and sustain infrastructure excellence, encompassing hardware, software, servers, and security.Fostered collaboration across IT and cross-functional departments, promoting engagement and the adoption of harmonious working practices to ensure favorable outcomes.Prepared, presented, and negotiated business cases and recommendations for improvements with Board members and senior executives, facilitating engagement and their comprehension of proposed plans.Contributed to the organization's overarching strategy through monthly reporting and offered valuable technical consultation on various business initiatives.Spearheaded innovation projects, conducting in-depth market and competitor research, managing the end-to-end service development from concept to reality, and overseeing the rigorous testing of novel hardware and software.Diligently managed and maintained high levels of customer satisfaction, utilizing feedback as a cornerstone for establishing new, more efficient, and effective operational procedures.

Brea, California

•Oversee implementations of Cloud solutions for 0365 and SQL Azure, establishment of in-house IaaS infrastructure and new disaster recovery plan for care home organization;•Manage team of technical experts, offering coaching and performance management to drive achievement of objectives and encourage positive working culture;•Perform cost analysis and projections in addition to managing large development budget and negotiate services with IaaS providers, ensuring value for money and delivery against set SLAs;•Strategically plan and develop improved stability and reliability of infrastructure, increased server utilization and improved server clustering and load balancing;•Ensure compliance with HIPPA standards across all technical development activity.

Irvine, Ca

In this role, reporting to the CIO, I’m responsible for all network and server activity across both client environments. I’m the ‘middle man’ in terms of interpreting corporate IT strategy and putting it into action via the establishment, maintenance and ongoing improvement of data centers, IT infrastructure, security, backup and disaster recovery procedures, applications, and IT based projects incorporating transformational change programs.I offer a personable approach, utilizing my technical expertise and superior customer service skills to respond to queries, coach colleagues and ensure completion of IT tasks by the wider team. I also manage vendor and supplier relationships and negotiate contracts, KPIs and SLAs, ensuring consistent delivery of a robust IT service to the City.• Oversaw completed redevelopment and restructure of Irvine Police Department’s IT function, implementing new SOPs and technical documentation, new data center implementation and redefining processes leading to reduced downtime, improved availability and a stable and robust network and infrastructure;• Project managed design, development and implementation of remote location file servers across City of Irvine;

During this period, I worked on a contracting basis, offering skills and expertise across a number of high profile, high impact IT projects. Working for organizations including BreezeIT, Tower Energy, ITEA Technologies, Startel Corp and UBM/CMPMedica, I performed a range of strategic level project management roles, overseeing design, development, implementation and evaluation of multiple systems and IT processes, including:• Developing SaaS, PaaS and Iaas based data centers, involving full establishment of Active Directory, network management solution, network security and desktop operating systems across numerous servers and applications;• Configuring new telecoms services using Cisco based routers, switches and firewalls and managing helpdesk calls through implementation and beyond for over 50 locations;• Overseeing live network migration project for a Fortune 500 company.

Aliso Viejo

Following a vacation visiting vineyards across California and being unable to find some wineries on the map, I had a ‘Eureka!’ moment and decided to establish a website based business offering online identification of wineries for customers, alongside promotion, sales and hosting services for the wineries themselves. I created a Cloud based environment incorporating servers, exchange servers, SQL servers, DNS, Web Servers and a data center, long before ‘Cloud based’ was a common concept. I also set up and managed business functions including HR, IT, supply, distribution and sales.Managing a significant budget, a team of 15 employees and establishing positive relationships with vendors and suppliers, the company was a success and the information based website side to the business still runs to this day.• Successfully built a database of 500,000 customers and 17,000 wineries across the globe.• Offered technology hosting services to alternative sectors during GFC, allowing continued trading.

Aliso Viejo

Directed and oversaw the operations of a 10,000-square-foot data center and network, which catered to the needs of a diverse user base comprising 1,000 individuals. Simultaneously, I led a skilled team of 10 employees, providing uninterrupted, 24x7x365 service to over 150 companies. My responsibilities encompassed the complete operational management of IT development and helpdesk services.Pioneered the creation of an Application Service Provider, leveraging the deployment of 60 IBM servers, to deliver resilient and high-performance applications to our clients.Implemented advanced disaster recovery strategies and business continuity plans to safeguard critical data and services in the event of unforeseen disruptions. These measures ensured that mission-critical systems remained accessible and functional, even in challenging circumstances.Employed SNMP tools, including SolarWinds Orion, and deployed sophisticated network engineering solutions to maintain the robustness and reliability of the network infrastructure. These efforts contributed to uninterrupted service and minimized downtime, even in the face of network-related challenges or disruptions.

Greater Los Angeles Area

I managed IT systems and provided support to multiple users, developing skills across vendor negotiation and contracts, diagnosing and repairing hardware and software issues, ensuring compliance with IT standards and corporate policies and delivered ongoing robust and reliable IT infrastructure across three banking branches and 500 end users.• Initiated backup plan with replacement equipment, preventing significant potential losses in trader downtime;• Configured, constructed, and maintained Windows NT 4.0 and 2000 network with up to 50 workstations, Windows 2000 Advanced Server, IBM Lotus Notes Server, and Windows NT 4.0 File Server.

B.A, History

Activities and Societies: Founder of "Unity" - to bring peoples of different races and nationalities together and discuss in an open forum.

Associates Of Science, Astronomy

Activities and Societies: Elected to the Student council of Fullerton College