Julio Serpas
Verified Expert in Engineering
Unified Communications Engineer and Developer
Houston, United States
Toptal member since August 5, 2026
Julio is a unified communications and collaboration engineer with over 7 years of experience designing and managing global communications systems across the technology and energy sectors. He specializes in Cisco Webex, Zoom Phone, and Microsoft Teams for enterprise environments. While at Hewlett Packard Enterprise, Julio led the Slack support team, managing 56 workspaces and supporting 100,000 users.
Portfolio
Experience
- Microsoft 365 - 13 years
- Microsoft Teams - 10 years
- Zoom - 10 years
- Slack - 8 years
- Microsoft Entra ID - 6 years
- Google Meet - 5 years
- Google Workspace - 5 years
- Okta - 4 years
Preferred Environment
Google Workspace, Microsoft 365, Okta, Microsoft Entra ID, Slack, Microsoft Intune, Jira, Salesforce, Asana, ServiceNow
The most amazing...
...migration project I've led is moving 100,000 users across 56 Slack workspaces to a unified collaboration platform at Hewlett Packard Enterprise.
Work Experience
Unified Collaboration Services Engineering Lead
Hewlett Packard Enterprise
- Supported Azure Entra ID access management, enhancing security and user access efficiency across the enterprise.
- Managed the migration from Skype to Teams with Direct Routing, ensuring seamless transition and improved communication efficiency.
- Collaborated with Microsoft and telephony vendors to troubleshoot and configure Teams SBCs, optimizing system performance and connectivity.
- Managed all Skype for Business and MS Teams voice calling plans, ensuring seamless communication and connectivity.
- Served as the global administrator for Zoom, including Zoom phone, to enhance communication efficiency across the organization.
- Analyzed and reported on call quality and usage statistics for Teams, Cisco Webex, and Zoom, enhancing service reliability and user experience.
- Worked with Network and Cyber teams to validate QoS, network, and firewall configurations to ensure network/media traffic is prioritized and enhances user experience.
- Worked with business stakeholders to migrate from Zoom/Webex to MS Teams where possible.
- Created and documented UCC standards, runbooks, request processes, and automations.
- Provisioned endpoints and set up Zoom Room integration globally, facilitating seamless virtual meetings and enhancing global communication.
Microsoft Teams Customer Engineer
Microsoft
- Serviced Microsoft customers by providing Teams, OneDrive, and SharePoint support, enhancing user satisfaction and system efficiency.
- Delivered educational workshops and assessments, providing expert guidance that improved customer understanding and system performance.
- Conducted tenant assessments to enhance media quality on Skype and Teams, leading to improved communication clarity.
- Trained customers and shared industry expertise, resulting in increased customer proficiency and satisfaction.
- Built strong customer relationships and ensured project deliveries aligned with customer goals, enhancing project success rates.
Voice & AV Specialist
Tellurian Networks
- Managed all AV rooms globally using Polycom RPRM, including troubleshooting, ensuring seamless operation and user satisfaction.
- Provisioned endpoints and set up Zoom integration globally, enhancing communication efficiency across teams.
- Provisioned endpoints and set up BlueJeans integration globally, improving video conferencing capabilities.
- Integrated business unit requested apps with Zoom, enhancing functionality and user experience.
- Configured, supported, and managed all Polycom voice and video endpoints globally, including troubleshooting, ensuring reliable communication systems.
Unified Communications Engineer
Macquarie
- Provided expert troubleshooting for all UC endpoints using CUCM, Cisco TMS, Voice gateways, and Unity connections.
- Managed all AV conference rooms using Cisco Telepresence, ensuring seamless video conferencing experiences, including troubleshooting.
- Managed all AV conference rooms with Teams Rooms, enhancing collaboration and communication efficiency, including troubleshooting.
- Configured tool interoperability in all AV rooms, facilitating smooth integration and user experience.
- Oversaw all AV installations by the SI vendor, ensuring timely and quality completion of projects.
Experience
Cisco/Skype/Zoom Interoperability
Skills
Libraries/APIs
OneDrive
Tools
Skype, Zoom, Slack, Jira, Asana, Cisco UCCE, Microsoft Teams, Google Meet, Skype for Business, Google Workspace, CUCM, Microsoft Intune, BMC Remedy, SolarWinds, Cisco Meraki
Languages
Python
Platforms
SharePoint, Salesforce
Storage
Microsoft Entra ID
Other
Teams, Quality of Service (QoS), Microsoft 365, Cisco, Cisco UCS, Polycom, Session Border Controller (SBC), Okta, BlueJeans, ServiceNow
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