[Remote] Sr. Network Operations VoIP Engineer (Platform & SRE)

Note The job is a remote job and is open to candidates in USA. Bandwidth Inc. is a global software company that helps enterprises deliver exceptional experiences through voice, messaging, and emergency services. They are seeking a Senior VoIP Engineer to join their Network Operations team, focusing on ensuring reliable, secure, and automated SIP connectivity across multiple carrier platforms and enterprise environments. Responsibilities Design and implement automation to reduce operational burden, replacing manual workflows with scripting and Infrastructure as Code (IaC) Use tools like Ansible/AWX and Terraform to automate the provisioning and scaling of voice services and carrier interconnects Conduct detailed interoperability testing between carrier platforms and open-source SIP implementations (e.g., Kamailio, OpenSIPS), resolving signaling mismatches and codec issues Design and maintain SIP trunking solutions with multiple carriers to ensure reliability, compliance, and optimal routing Act as the highest-level escalation point for complex SIP/RTP problems. Use advanced tools like Wireshark, SIPp, and HEPIC/Homer to analyze call flows and media streams Collaborate with network and security teams to integrate SIP services through proxy servers and modern routing policies Maintain 'Documentation as Code,' including SIP call flow diagrams and interconnect standards, while providing guidance to junior staff on modern troubleshooting methodologies Skills 5+ years of hands-on VoIP engineering experience, with a heavy emphasis on carrier-grade SIP environments Expert-level knowledge of SIP signaling (INVITE, BYE, etc.), SDP negotiation, and RTP/RTCP 3+ years of proficiency in Python, Bash, or Ansible for automating provisioning and troubleshooting workflows Experience using IaC tools to manage infrastructure at scale Hands-on experience with open-source SIP proxies (e.g., Kamailio, OpenSIPS) alongside traditional SBCs (e.g., Ribbon, Oracle/Acme Packet) Strong Linux administration skills for VoIP application performance and system troubleshooting Proficiency with diagnostic tools such as Wireshark, sngrep, and Homer/HEP Direct experience with carrier-to-carrier SIP interconnects and SS7-to-SIP interworking Experience with ENUM, LNP, and complex routing logic Familiarity with TLS, SRTP, and regulatory compliance including STIR/SHAKEN and E911 Experience deploying voice services in containerized or cloud-native environments Solid knowledge of IP, DNS, and routing protocols Benefits 100% company-paid Medical, Vision, & Dental coverage for you and your family with low deductibles and low out-of-pocket expenses. All new hires receive four weeks of PTO. PTO Embargo. When you take time off (of any kind!) you’re embargoed from working. Bandmates and managers are not allowed to interrupt your PTO – not even with email. Additional PTO can be earned throughout the year through volunteer hours and Bandwidth challenges. “Mahalo moments” program grants additional time off for life’s most important moments like graduations, buying a first home, getting married, wedding anniversaries (every five years), and the birth of a grandchild. 90-Minute Workout Lunches and unlimited meetings with our very own nutritionist. Company Overview Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences. It was founded in 1999, and is headquartered in Raleigh, North Carolina, USA, with a workforce of 1001-5000 employees. Its website is http//www.bandwidth.com. Company H1B Sponsorship Bandwidth Inc. has a track record of offering H1B sponsorships, with 6 in 2026, 11 in 2025, 5 in 2024, 13 in 2023, 13 in 2022, 14 in 2021, 6 in 2020. Please note that this does not guarantee sponsorship for this specific role.

Back to blog

Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...