Ensono Fellows
Discover Ensono’s expert technologists leading innovation through the Fellows Program. Meet our Fellows and explore their groundbreaking contributions to technology.
Principal Mainframe Systems Programmer
Paul Buchanan has been a cornerstone in the mainframe domain since 1997, with a specialized focus on mainframe automation since 2008. Currently holding the position of Principal Mainframe Systems Programmer at Ensono, Paul has significantly contributed to the development and optimization of mainframe systems, particularly through his work with Broadcom’s Automation Point. His efforts have fostered major process improvements and innovative solutions that have positively impacted Ensono and its clients.
Paul’s career highlights include his leadership in mainframe automation, his active participation in redesigning network architectures, and his influence in shaping the future of mainframe event monitoring and AI operations. Notably, he has been pivotal in the deployment of Automation Point as an interim solution for diverse systems, showcasing his ability to adapt and integrate new technologies effectively. In his current position, Paul is focused on enablement and development of mainframe automation with tools such as Ansible, Ironstream, ZOAU, and others. Helping to architect our automation solutions with a focus on client security.
Focus Areas
Mainframe, Mainframe Modernization and Mainframe Automation | Event Monitoring, Correlation, Remediation and Prevention | AI Operations in Mainframe Monitoring | Network Architecture and Optimization | Vendor Relationship and Product Development Broadcom, IBM, Precisely and Rocket
Director, IBM Z Product Innovation Engineering
Mike Fontanetta has over 40 years of experience in mainframe hybrid strategy and systems architecture. As the Director of IBM Z Product Innovation Engineering at Ensono, Mike has been instrumental in driving innovation and operational excellence across the organization. His expertise spans modern mainframe systems, capacity management, and database architecture where he excels in steering large-scale projects to successful completion. Mike’s leadership is characterized by his adept problem-solving abilities and motivational skills, which enable him to effectively communicate and manage diverse teams across all levels of the business.
In his current role, Mike directs the Mainframe Innovation team, focusing on areas such as automation with Ansible, cloud implementations for mainframes, and team expansion. His efforts have led to significant advancements, including the development and deployment of a mainframe R&D lab and the integration of modern tools like Python and ZOAU to streamline operations.
Focus Areas
Mainframe Modernization | Mainframe Consulting |
IBM Z
Principal Technology Consultant, Public Cloud / Network Architecture
Brian Hertel is a network consultant and architect with over 20 years of industry experience. He has extensive experience developing transformative network and security solutions for Ensono’s largest clients. He has led many complex data center migrations to public cloud, private cloud, and hybrid cloud environments. Brian effectively works with clients’ technical staff and executives to form strong and trusted relationships. Previously, Brian has worked as a pre-sales architect, a network and security engineer, and as a delivery manager.
Focus Areas
Consulting | Network Architecture | Security Architecture | Cloud Networking and Security
Mainframes Performance & Capacity Planner
With 18 years of experience in the IT industry, Shantanu Gupta specializes in mainframe performance and capacity planning. He consistently demonstrates refined business acumen and exemplary analytical skills, making substantial contributions to performance monitoring and system optimization. As a seasoned expert, Shan has led many projects in tuning and optimizing mainframe systems, proactive monitoring, cost saving for our customers and trained professionals in advanced mainframe concepts, including SAS, MXG, zCP3000, zPCR, zBNA, WLM. His work has led to significant software and hardware savings and optimization projects that have delivered substantial value to clients.
Focus Areas
Mainframe Tools and Hardware | Workload manager | Proactive monitoring | System Optimization
Principal Product Architect AWS/GCP – DMTS
Michael Hogg is a highly skilled and accomplished IT professional with over two decades of experience, currently serving as a Principal Product Architect at Ensono. With a robust background in cloud platforms, virtualization, and automation, Michael has consistently led the development and implementation of cutting-edge technology solutions. His expertise is primarily in AWS and GCP environments, where he spearheads numerous projects to enhance Ensono’s public cloud services and solutions. Michael’s approach combines deep technical expertise with a keen ability to communicate complex solutions effectively, ensuring that technology implementations align seamlessly with business objectives.
Focus Areas
AWS and GCP Cloud Platforms | Virtualization (Hyper-V and VMware) | Automation and DevOps | Cloud Networking and Security | Active Directory | Python, PowerShell, and BASH
Expert Storage Engineer
Piotr Kamiński is an IT Expert specializing in SAN & Storage with over 20 years of comprehensive experience, currently serving as an Expert Storage Engineer at Ensono. Piotr’s expertise encompasses a broad range of IT domains including networking, virtualization, automation, and data management, with a particular focus on automation and data engineering. His role at Ensono involves tackling the most complex performance issues, creating effective solutions, and elevating the team’s capabilities through rigorous knowledge sharing and mentoring. Piotr’s innovative approach has significantly streamlined operations, notably through the development of custom tools and systems that enhance service quality and troubleshooting efficiency.
Focus Areas
SAN & Storage Expertise | Automation and Data Engineering | System Deployment and Integration | Monitoring Solutions
Principal Infrastructure/Automation Architect
Scott Meeuwsen is a Principal Infrastructure/Automation Architect at Ensono, where he has demonstrated exceptional leadership and innovation in network architecture and automation since 2017. With a profound background that spans over two decades, Scott has excelled in roles that encompass a broad spectrum of network engineering, IT infrastructure development, software engineering and IT automation. His achievements include the design and creation of the Ensono Private Cloud v3 Network API, which drastically reduces engineering time for building client networks from months to just hours. His innovative approach to network architecture and automation has not only streamlined processes but also enhanced client service delivery across the board.
Focus Areas
Network Architecture Innovation | Global Infrastructure Strategy | Software Engineering and Design | Automation and Process Efficiency | Python, Ansible and Terraform
Senior Director of Product Engineering
Dugan Sheehan is an accomplished cloud engineer and chief product architect with over 20 years of experience in managing large, complex, hybrid cloud environments. In his role as senior director of product engineering, Dugan manages a global engineering team and oversees the design + development activities for the Managed Azure service/platform. As a leader, he helps shape the overall look and feel of the service offering and has had substantial impact leading key initiatives such as: Azure automated billing, Ensono Advisor, Azure Governance, and Azure patching evolution. He has a passion for automation and leveraging technology to solve complex business challenges.
Focus Areas
Public Cloud: Azure | Innovation | Product Design | Automated Billing | Scripting: Powershell | At-Scale Automation: Azure Automation, Azure Functions | Azure IaaS and PaaS | Virtualization: Hyper V and VMware | Azure Site Recovery and Azure Backup | Windows Server environments | Infrastructure Management | Cloud Networking and Security | Monitoring: Azure Monitor, DataDog
Director, Infrastructure Architecture
Nigel is a seasoned Enterprise Architect with extensive experience leading cross-functional teams to design, deploy, and operate secure and robust infrastructures tailored to complex business needs. At Ensono, he serves as the Director of Infrastructure Architecture, where he has been pivotal in spearheading infrastructure transformations encompassing public and private cloud environments. His deep technical acumen spans multiple areas including automation, business continuity, and disaster recovery solutions, positioning him as a leader in developing scalable and secure infrastructure architectures. Nigel’s leadership has been instrumental in the development of Ensono’s Private Cloud version 3, integrating advanced network automation frameworks to meet intricate client requirements.
Focus Areas
Network architecture and automation | VMware virtualization | Windows operating systems | Dell/EMC & NetApp platforms | PowerShell, Python, Terraform, Ansible & Packer | Elasticsearch, Solarwinds, PRTG and other monitoring tools
Expert Solution Delivery Architect
Mike (Yunheng) Xu is a network architect with over a decade of specialized experience in designing and implementing network infrastructures across various sectors. As an expert solution delivery architect, Mike spearheads the design and deployment of IP/MPLS networks, integrating cutting-edge technologies to enhance service delivery and operational efficiency. His work involves close collaboration with clients during the onboarding process, ensuring seamless integration and optimal network performance tailored to their specific business needs. Throughout his career, Mike has demonstrated a deep commitment to technological excellence and customer satisfaction. Mike’s profound knowledge in public cloud infrastructures, particularly GCP, combined with his hands-on experience in virtualization and automation, underscores his adaptability and forward-thinking approach in today’s evolving IT landscape.
Focus Areas
Network Security | Network Architectures including Cisco Nexus, Cisco ACI, VMWare NSX, and various Cisco and Juniper products | Google Cloud Platform expertise | Automation: Ansible and Terraform | Cisco
Security Architect
Bruce Warrington is a seasoned Security Architect with over two decades of dedicated service at Ensono. With a robust history dating back to 2000, Bruce has been instrumental in defining and architecting sophisticated security solutions that align with industry best practices and regulatory requirements such as PCI, HIPAA, and FIPS. His expertise spans a broad spectrum of security technologies, including the deployment of Palo Alto, Checkpoint, and Cisco firewalls, as well as IDS/IPS systems, F5 load balancers, and encryption technologies. Bruce’s deep understanding of both Windows and Linux environments, combined with his mainframe expertise, allows him to design and implement comprehensive security strategies that enhance business continuity and disaster recovery for clients.
Focus Areas
Security Architecture and Implementation | Regulatory Compliance and Best Practices | Firewall and Encryption Technologies | Business Continuity and Disaster Recovery
Director & Principal Technologist, Cloud Design Architect
Linda Sterling brings over 20 years of experience in the IT sector, with a career spanning small businesses to enterprise-level environments. As a Cloud Design Architect at Ensono, Linda plays a pivotal role in aligning technology solutions with client needs, particularly through the deployment of Ensono’s Private Cloud platform. Her expertise in Windows, Linux, and VMware environments has enabled her to lead significant transformations in client estates, optimizing application stacks and increasing automation. Previously, Linda managed the Enterprise Virtualization Services team at Ensono, overseeing the architecture and maintenance of VMware and cloud environments. Her role extended to managing Active Directory and Citrix environments, ensuring robust and scalable solutions for clients.
Focus Areas
Windows Server and Linux Systems | VMware Virtualization | Private Cloud Solutions | Active Directory and VDI | Network and Security Solutions
Principal Technologist Systems Engineer
David Rock is an accomplished Linux expert and Technical Lead at Ensono. As one of the lead senior members of the Linux team, his extensive experience spans a wide range of consultative roles, with a keen focus on developing standardized processes to improve automation and streamline server administration. David’s commitment to adopting and promoting best practices is evident in his role as the primary Subject Matter Expert for Red Hat Satellite for key clients. David’s tenure at Ensono and previously at Acxiom has been marked by significant achievements, including the maintenance of over 3000 RHEL and CentOS servers, and the management of complex automation and patching operations using Ansible and Python. His technical expertise includes developing critical monitoring tools that automate ticket generation and system health reports, significantly reducing operational times and manual efforts.
Focus Areas
Linux Systems Administration | Linux Lifecycle Management: Foreman/Satellite | Automation and Standardization: Ansible | Scripting: Python, Bash
