Remote VoIP & Enterprise Systems Administrator

One Inc; España; Remote; EUR 71,000 - 98,000; Full time

Job summary

One Inc is seeking a Business Systems Administrator focused on VoIP and enterprise communication platforms. You will administer SIP-based and cloud PBX systems, manage user provisioning, call routing, and IVR configurations, and ensure high availability of voice services for the business.

You will collaborate with IT, network engineering, and business teams to optimize communications, support integrations with CRM/ticketing systems, and participate in deployments and on-call coverage to meet

Qualifications

• Experience with enterprise VoIP and unified communications platforms.
• Proven ability to support, troubleshoot, and optimize voice networks.
• Familiarity with cloud-based collaboration tools and integrations.
• Background checks, background screening may be required.

Responsibilities

• Administer and support enterprise VoIP platforms and call routing.
• Manage user provisioning, extensions, hunt groups, and IVR configurations.
• Monitor call quality, uptime, and system performance; resolve issues.
• Coordinate with vendors for licenses, changes, and escalations.
• Support integrations with CRM/ticketing and automate workflows.

Skills

VoIP technologies

PowerShell

Python

Entra ID / Azure AD

Networking (DNS/DHCP/VLANs)

On-call support

Vendor management

Stakeholder comms

APIs integration

Education

Bachelor’s degree in Information Technology or related field

3–5+ years of VoIP, telecom, or unified communications administration

Tools

Teams Phone

RingCentral

Zoom Phone

Salesforce

Zendesk

Job description

One Inc is seeking a Business Systems Administrator focused on VoIP and enterprise communication platforms. You will administer SIP-based and cloud PBX systems, manage user provisioning, call routing, and IVR configurations, and ensure high availability of voice services for the business.

You will collaborate with IT, network engineering, and business teams to optimize communications, support integrations with CRM/ticketing systems, and participate in deployments and on-call coverage to meet