VoIP / Unified Communications Engineer
Sample Resume & ATS Keywords
Salary aggregator data converges around $120,000-$121,000/yr average in the US for this role, with a documented career ladder from $60,000-$80,000 entry-level to $110,000-$150,000+ senior/lead — and the real story is a technology transition, not a decline: on-premise PBX deployment is shrinking while UCaaS/cloud-collaboration migration work (Teams Phone, Zoom Phone) is described industry-wide as robust and actively hiring. A resume needs to name the specific migration platforms and certification tier to clear recruiter filters.
All sample resume content on this page is original and illustrative — fictional candidates, realistic numbers. Use it as a pattern, not a template to copy verbatim.
Sample VoIP / Unified Communications Engineer resume summary
What a parseable, keyword-complete professional summary looks like for this role:
VoIP / Unified Communications Engineer with CCNA Voice and CCNP Collaboration certifications, 6 years leading UCaaS migrations from legacy PBX to Microsoft Teams Phone and Zoom Phone. Manages SIP trunking, call-routing design, and contact-center integration for enterprise clients with 5,000+ seats, delivering measurable cost savings from PBX decommission.
Sample achievement bullets that pass ATS screening
Each bullet follows the pattern recruiters and parsers reward: exact keywords, a specific action, and a quantified outcome.
- Led migration of 6,200 seats from legacy on-premise PBX to Microsoft Teams Phone across 14 sites, completing the rollout 3 weeks ahead of schedule.
- Designed SIP trunking architecture supporting 3 enterprise clients, reducing average call-setup latency by 40%.
- Achieved 99.98% call-completion rate across a UCaaS platform serving 4,000 daily active users over a 12-month period.
- Delivered $380,000 in annual cost savings by decommissioning 9 legacy PBX systems following a phased Zoom Phone migration.
- Earned CCNP Collaboration certification and led a 4-engineer team through the CCNA Voice certification track.
- Integrated a cloud contact-center platform (Genesys) with existing UCaaS infrastructure, cutting average handle time by 22%.
- Reduced UC-related trouble tickets by 34% after standardizing call-routing design documentation across 8 business units.
- Managed SIP trunk failover testing across 5 carrier providers, ensuring zero downtime during a primary-carrier outage event.
ATS keyword bank for VoIP / Unified Communications Engineer resumes
From our 2026 research into recruiter sourcing behavior for this role. Recruiter and ATS searches match exact strings — carry the terms your real experience supports, in the wording the posting uses.
| Keyword group | Terms recruiters search |
|---|---|
| Titles & variants | VoIP Engineer · Unified Communications Engineer · UC Engineer · UCaaS Engineer · Collaboration Engineer · Telephony Engineer |
| Certifications & licensure | Cisco CCNA Voice · Cisco CCNP Collaboration · Cisco CCIE Collaboration · Microsoft Teams Voice Engineer certification |
| Systems & platforms | Microsoft Teams Phone · Zoom Phone · Google Voice integration · Cisco Unified Communications Manager (CUCM) · SIP trunking providers |
| Technical/regulatory vocabulary | SIP trunking · call-routing design · contact-center integration · UCaaS/cloud-collaboration migration · PBX decommission |
| Quantified outcomes | seats/users migrated · uptime/call-quality results · deployment timeline · cost savings from PBX decommission · call-completion rate |
VoIP / Unified Communications Engineer resume formatting: do this, not that
Do
- Name the specific UCaaS platforms you've migrated to or from (Teams Phone, Zoom Phone, Google Voice) — recruiters search these as exact strings.
- State your CCNA Voice/CCNP Collaboration/CCIE Collaboration tier explicitly since it's the most job-posting-referenced credential set.
- Quantify cost savings from PBX decommission — it's a metric hiring managers ask about directly in this role.
- Frame the resume around the "shifting, not shrinking" migration story rather than legacy PBX maintenance alone.
- Include SIP trunking and call-routing design as separate, named skills rather than folding them into general "VoIP experience."
Don't
- Don't lead with legacy PBX maintenance experience alone — pair it with migration/UCaaS work to signal current relevance.
- Don't write "VoIP experience" without naming a platform, seat count, or migration outcome.
- Don't omit certification tier; "Cisco certified" without CCNA Voice/CCNP Collaboration specified reads as incomplete.
- Don't confuse this resume with a generic IT-project-manager or software-engineer resume; keep telecom-specific UC vocabulary distinct.
- Don't skip contact-center integration experience if you have it — it's a frequently searched adjacent skill for senior UC roles.
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