Professional Resume Template for
VoIP Engineer
Marcus A. Vance
Austin, TX
(512) 555-0198
marcus.vance@email.com
linkedin.com/in/marcus-vance | github.com/marcusvance | marcusvance.dev
Professional Summary
Analytical VoIP Engineer with 6 years of experience designing, deploying, and optimizing enterprise-grade unified communications systems and network infrastructures. Expertise includes administering session border controllers (SBCs), managing SIP trunking channels, and configuring QoS policies for multi-site deployments. Successfully resolved over 95% of critical voice signaling bottlenecks and reduced network packet loss from 2.4% to under 0.1% using Wireshark packet analysis. Proficient with Cisco CUCM, AudioCodes SBCs, Wireshark, Asterisk, and Python scripting for automated provisioning.
Work Experience
VoIP Engineer — Apex Telecom Solutions
Dallas, TX | January 2024 – Present
- Migrated 14 legacy on-premises PBX systems to Cisco Webex Calling cloud architecture, onboarding 4,500 end-users with zero unplanned operational downtime.
- Configured 8 AudioCodes Mediant Session Border Controllers (SBCs) to secure SIP trunking channels, reducing unauthorized registration attempts by 99.8%.
- Optimized network QoS policies and DSCP markings across 32 corporate branches, lowering voice jitter by 45% and achieving a Mean Opinion Score (MOS) of 4.3.
- Automated user provisioning using Python scripts and REST APIs, reducing manual active directory updates from 12 minutes to under 45 seconds per line.
Junior VoIP Specialist — Vertex Communications
Austin, TX | August 2020 – December 2023
- Resolved 1,200+ escalated tier-2 VoIP signaling tickets using Wireshark packet capture analysis, decreasing average voice troubleshooting time-to-resolution by 38%.
- Deployed 350 Cisco IP phones and softphone clients utilizing Cisco CUCM and DHCP options, completing the hardware refresh cycle 3 weeks ahead of schedule.
- Monitored SIP trunk utilization across 6 regional trunk groups using SolarWinds, preventing call capacity failures and sustaining a 99.99% trunk uptime rate.
- Programmed IVR routing scripts and dial-peer patterns for 5 customer call queues, lowering average customer hold times in the queue by 18% during peak hours.
Education
Bachelor of Science in Computer Science
Texas State University · San Marcos, TX · 2020
Skills
Cisco CUCM, Session Border Controllers (SBC), SIP Signaling, SDP, RTP, SRTP, Webex Calling, AudioCodes Mediant, Wireshark packet analysis, sngrep, QoS optimization, DSCP markings, IVR routing, Python scripting, SolarWinds monitoring, DHCP, TCP/IP networking, Linux
Projects
Global SIP Trunk Migration
Role: Lead VoIP Engineer
Tools: Cisco CUCM, AudioCodes SBC, Wireshark, Jira
Coordinated the consolidation of 12 legacy ISDN PRI circuits into a unified SIP trunking configuration, saving $74,000 annually and increasing concurrent call capacity by 50%.
Automated Provisioning System
Role: VoIP Automation Developer
Tools: Python, REST APIs, Git, Linux
Developed and launched a custom scripting tool to automate the provisioning of 2,000 softphone client licenses, cutting setup errors by 90% and reducing administrative overhead by 25%.
Certifications
- SIP School Certified Associate (SSCA) (2022)
- Cisco Certified Network Associate (CCNA) (2020)
Additional information
- Languages: English (Native), Spanish (Basic)
- Volunteer Work: Technical support volunteer for regional community centers (2021-present)
- Availability: 2 weeks notice
Job Market Insights
Market data and opportunities for
VoIP Engineer
Job Market Insights
$95,000
-
$135,000
Avg:
$115,000
Growth Outlook:
The demand for skilled VoIP Engineers in the United States remains strong, driven by the widespread transition from legacy on-premises PBX networks to cloud-hosted Unified Communications as a Service (UCaaS) platforms. As organizations automate routine ticket handling and provisioning, VoIP specialists are increasingly focusing on strategic cloud migrations, network security, and complex multi-vendor SIP signaling. Job openings for related network architect roles are projected to grow by 12% over the next decade, with key hiring opportunities in IT, telecommunications, and financial services.
12% growth over 10 years
Key Skills Required
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