Say hello to opportunities.

It’s not every day that you consider starting a new career. We’re Ring Central, and we’re happy that someone as talented as you is considering this role. First, a little about us, we’re a $2 Billion annual revenue company with double digit Annual Recurring Revenue (ARR) and a $93 Billion market opportunity in UCaaS, Contact Center and AI-powered adjacencies. We invest more than $250 million annually to ensure our AI-enabled technology and platforms meet or exceed the needs of our customers.

We are looking for an experienced Senior VoIP Engineer to join our team and take a leading role in designing, operating, and optimizing carrier-grade telephony infrastructure. This position offers the opportunity to work on next-generation VoIP architecture, drive innovation, and ensure world-class reliability and call quality for millions of users.

Responsibilities:

• Review and optimize network design and configurations, providing recommendations to enhance functionality, reliability, and performance

• Participate with Engineering teams to define and implement next-generation VoIP architecture and scaling strategies

• Design, deploy, and manage high-availability (HA) carrier configurations in collaboration with carriers and internal VoIP components

• Forecast capacity needs, perform failover modeling, and contribute to scaling initiatives

• Diagnose and resolve complex service issues related to VoIP telephony platforms and applications

• Proactively monitor and ensure call quality, reliability, and service continuity across the telephony infrastructure

• Plan and implement network and infrastructure changes following best practices and change management processes

• Develop and maintain operational documentation, runbooks, and procedures

• Lead device deployments, software upgrades, and patch management for VoIP systems

• Collaborate with cross-functional teams to address and resolve persistent issues

• Participate in a rotating on-call support schedule

Qualifications / Responsibilities:

• 5+ years of technical operations experience in carrier-grade or service provider networks

• Deep understanding of Session Border Controllers (SBCs) – ideally Sonus/Ribbon, though knowledge of other vendors is highly valued

• Strong Linux/Unix Server expertise and experience with related subsystems

• Proficiency in scripting for automation and troubleshooting

• Advanced knowledge of SIP, RTP, RTCP and related VoIP protocols

• Hands-on experience capturing and analyzing SIP and RTP traces to troubleshoot and resolve issues

• Strong understanding of MOS, jitter, delay, packet loss, and their impact on call quality

• Excellent problem-solving skills with the ability to handle complex technical challenges

• Clear and professional verbal and written communication skills

What we offer:

• Well-coordinated professional team.

• Cutting edge technologies, interesting and challenging tasks, dynamic project, great opportunities for self-realization, professional and career growth.

• Additional Health and Life Insurance Package.

• Employee Assistance Program.

• 25 vacation days.

• 102.26 EUR/200 BGN Digital Food Vouchers.

• 61.36 EUR/120 BGN Gross as part of the salary for Working Expenses Allowance.

About Ring Central

Ring Central, Inc. (NYSE: RNG) is a leading provider of business cloud communications and contact center solutions based on its powerful Message Video Phone™  (MVP™) global platform. More flexible and cost effective than legacy on-premises PBX and video conferencing systems that it replaces, Ring Central® empowers modern mobile and distributed workforces to communicate, collaborate, and connect via any mode, any device, and any location. Ring Central is headquartered in Belmont, California, and has offices around the world.

Ring Central is an equal opportunity employer that truly values diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.