Our Team

Monitoring Your Needs, Here When You Need Us

Leadership Team
Sales Team
  • All of our senior executives spend most of their time sharing hard-won experience with our customers. They oversee every one of our projects first-hand throughout your relationship with Tier1. And that’s not just a promise; it’s the core of our process.

    Rob Guidarelli, Chief Executive Officer

    Rob Guidarelli

    Chief Executive OfficerTier 1, Inc.

    Rob has been in the IT industry for more than 30 years, eight of them at Oracle Corporation. In addition to positions with several other IT companies, Rob was responsible for IT strategic planning, software evaluation and acquisition, and application development projects at a global manufacturing company.


    Edward Eichler, Chief Operating Officer

    Edward Eichler

    Chief Operating OfficerTier 1, Inc.

    Responsible for the life cycle of Tier1 implementation and remote support engagements, Ed matches solutions to customer needs from project inception through production support. His more than 25 years in information technology include 10 years with Oracle Corporation. In almost 20 years of practice with Oracle EBS, he has managed EBS engagements including large scale implementations, upgrades,  assessments, and planning engagements, as well as the establishment of Tier1’s Managed Services approach and delivery methods.


    Maz Zankowski, Chief Technical Architect

    Maz Zankowski

    Chief Technical ArchitectTier 1, Inc.

    Maz has worked in IT for more than 25 years, eight of them as a consultant for Oracle Corporation. His varied roles have involved software implementation, operations, sales, and management in banking, networking, microfilming, and database/software enterprises.


    Craig Krouse, Vice President, Client Services

    Craig Krouse

    Vice President, Client ServicesTier 1, Inc.

    Craig creates and executes project work plans as well as the delivery of Tier1’s Managed Services offerings. Craig has over 10 years of experience working exclusively with Oracle Technology as a technical developer and now manages our Oracle e-Business Suite and Hyperion implementation and upgrade projects. Earlier in his career, he spent five years in international consulting as a technical lead and project manager for an environmental consulting firm.


    Philip Rainsberger, Director, DBA Services

    Philip Rainsberger

    Director, DBA ServicesTier 1, Inc.

    Phil has been a consultant specializing in Oracle’s database tools and E-Business Suite for more than 16 years. His career has encompassed development, database administration, and project management for numerous implementations, upgrades, and integration projects. Today, he manages the DBA and Linux practices, continues to work on EBS and Identity & Access Management projects, and participates with the sales team to develop new business.


    Gary Popielarczyk, Director, Hyperion Services

    Gary Popielarczyk

    Director, Hyperion ServicesTier 1, Inc.

    Gary has been a consultant specialist in the Hyperion suite of products for over 18 years. His career has included a wide range of Finance and IT roles across multiple industries, including manufacturing, retail, healthcare, and education. He has been involved in all stages of project implementations, and managed numerous full-lifecycle implementations, upgrades and rebuilds, as well as managed services for ongoing application support.


  • If your responsibilities include running an Oracle environment, you may already have heard from our sales representatives. They work hard not to intrude, but they know from experience there’s almost sure to be a time when your operation can benefit from a conversation with an Oracle expert from Tier1.

    In the meantime, thanks for permitting us to stay in touch.

    Marcie Newell

    Marcie Newell

    work412-381-9201 ext. 114

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    Greg DeLeonardis

    Greg DeLeonardis

    work412-381-9201 ext. 106

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    Toby Schwab

    Toby Schwab

    work412-381-9201 ext. 153

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    Mike Cugliari

    Mike Cugliari

    work412-381-9201 ext. 159

    EmailLinkedIn