Dennis Sierra
Hagerstown
Summary
Equipped with strong problem-solving abilities, willingness to learn, and excellent communication skills. Poised to contribute to team success and achieve positive results. Ready to tackle new challenges and advance organizational objectives with dedication and enthusiasm.
Overview
25
25
years of professional experience
1
1
Certification
Work History
Business Engagement; Area Tech Lead
US LBM
03.2022 - 02.2025
- Collaborated with businesses and corporate IT to ensure seamless operations and address technical challenges
- Diagnosed and resolved hardware, software, network, and connectivity issues to minimize business disruptions
- Coordinated with vendors to manage service levels for equipment and services, ensuring timely and effective issue resolution
- Partnered with location managers to assess business needs, escalate complex issues, and align technology initiatives with overall business objectives
Network Administrator/Sales Associate
Barrons Lumber
07.2018 - 03.2022
- Perform on-site and remote installation, maintenance of desktops, printers, and related peripherals
- Manage full-cycle employee onboarding of equipment setup, permissions, and phone configurations
- Direct personnel to appropriate third-party support channels for technical issues
- Diagnose and resolve performance issues with all IT hardware under third-party support guidance
- Maintain an accurate inventory of information systems equipment
- Create training documentation and provide user technology training
- Respond to inquiries from contractors and walk-in customers via phone and email
- Assist clients with order placement
- Process and fulfill special orders according to specific instructions
- Update pending orders or accounts upon receiving change requests
- Send confirmation receipts and other email communications as requested by clients
Help Desk Support Tech
Meritus Health
08.2018 - 06.2020
- Provide technical assistance to users which include troubleshooting of hardware and software issues, and installation
- Supported patients in setting up and accessing Meritus’ MyChart Patient Portal
- Decommissioned end of life and nonfunctioning IT equipment
- Imaged and configured new PCs and laptops for deployment
- Coordinated service calls with Dell for in-warranty equipment repair services
- Experienced with Lansweeper, Meditech, Epic, Cisco AnyConnect, and Horizon VMware
Level 3 Support Tech
Global Data Consultants (GDC)
08.2018 - 08.2018
- Dedicated onsite support at the Arc of Washington County
- Managed Active Directory to reset user passwords, enable and disable user accounts
- Accessed their Servers and edited employee information in Outlook Exchange
- Allowed and restricted employee permissions to public folders
- Set up projectors and connected laptops for presentations
IT Support Specialist
Insight Global (Meritus Health)
01.2018 - 08.2018
- Installed full PC setups across Meritus campus in preparation for the EPIC Systems software release
- Assisted Cisco Network team in upgrading the hospital and medical center’s network infrastructure
- Stacked switches into racks and patched network cables
RCMAC Clerk
Bell Atlantic/Verizon Telecommunications
09.2006 - 11.2017
- Managed the provisioning of new and existing phone lines
- Recorded, extracted, and analyzed data using systems such as TRACKER, MARCH, NSOP, and various Multi-Service Platforms
- Communicated effectively with internal teams, including Network Technicians, Retail, Wholesale, and other departments as needed
- Reviewed and processed service order activity from MARCH and related systems
Bilingual Maintenance Administrator
Bell Atlantic/Verizon
03.2000 - 09.2006
- Interpreted Mechanized Loop Testing (MLT) results and dispatch work as needed
- Utilized strong critical thinking skills to assist the Latino customer base in resolving telephone issues
- Dispatched Maintenance Technicians for on-site repairs
- Coordinated with departments to transfer customer information for managing telephone services
Education
High School -
Albert Einstein High School
01.1987
Skills
- Technical problem solving
- Documentation and reporting
- Quality assurance processes
- Stakeholder management
Accomplishments
- Supervised team of 10 staff members.
- Used Microsoft Excel to develop inventory tracking spreadsheets.
Certification
- Certification in A+ and Network+.
- Recognized for leadership for assisting during telephone service crisis to meet the needs of the business.
- Appointed as interim Team Leader during my supervisor’s parental leave and other absences.
- Selected by management and peers to contribute expertise and skills to various office projects.
- Actively engaged in the community as a youth sports coach.
Languages
Spanish
Native or Bilingual
Timeline
Business Engagement; Area Tech Lead
US LBM
03.2022 - 02.2025
Help Desk Support Tech
Meritus Health
08.2018 - 06.2020
Level 3 Support Tech
Global Data Consultants (GDC)
08.2018 - 08.2018
Network Administrator/Sales Associate
Barrons Lumber
07.2018 - 03.2022
IT Support Specialist
Insight Global (Meritus Health)
01.2018 - 08.2018
RCMAC Clerk
Bell Atlantic/Verizon Telecommunications
09.2006 - 11.2017
Bilingual Maintenance Administrator
Bell Atlantic/Verizon
03.2000 - 09.2006
- Certification in A+ and Network+.
- Recognized for leadership for assisting during telephone service crisis to meet the needs of the business.
- Appointed as interim Team Leader during my supervisor’s parental leave and other absences.
- Selected by management and peers to contribute expertise and skills to various office projects.
- Actively engaged in the community as a youth sports coach.
High School -
Albert Einstein High School
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