Staff SIP Engineer

At Weave (NYSE: WEAV), were on a mission to elevate the patient experience by giving healthcare practices the tools they need to run more efficiently and meaningfully connect with their patients. With 40,000+ customers and growing, Weaves all-in-one platform supports every interaction—from scheduling and payments to communication and reviews—making it easier for healthcare professionals to focus on what matters most: patient care.
Weave is looking for a VoIP Engineer with a strong background in modern communication tools and cloud technologies to help maintain and optimize our distributed, cloud-based voice platform. In this role, youll ensure our communication systems are robust, efficient, scalable, and observable working hands-on with SIP/RTP infrastructure and core components like Kamailio, RTPengine, Free SWITCH, and Homer/HEPIC. Youll collaborate cross-functionally with engineering and operations teams to improve reliability, performance, and customer call quality while shipping improvements through Dev Ops best practices.

• This position can be remote, in office, or hybrid

• Reports to:
  
  Engineering Manager

• Grow and manage a distributed cloud-based VoIP platform

• Optimize and troubleshoot Free SWITCH and Kamailio configurations for performance, resiliency, and reliability

• Design, build, test, deploy, and maintain services that support the voice platform

• Monitor and analyze VoIP network performance, identify areas for improvement, and implement solutions to enhance quality and efficiency

• Troubleshoot and resolve VoIP-related issues including call quality problems, signaling/connectivity issues, and system outages

• Develop Golang-based microservices and containers that support the voice ecosystem

• Deploy and operate services in Kubernetes environments

• Maintain and configure Kamailio and Free SWITCH instances

• Implement and improve observability for SIP/RTP flows using HEP/Homer and telemetry (metrics/logs/traces) to accelerate incident response and root-cause analysis

• Partner with SRE/Platform teams to improve CI/CD, infrastructure-as-code, and reliability practices (e.g., automated rollouts, canarying, and repeatable environments)

• Previous experience working as a VoIP network engineer

• Experience with VoIP applications such as Kamailio, OpenSIPS, Free SWITCH, RTPengine, and Asterisk

• Experience with troubleshooting tools such as Wireshark, sngrep, and Homer

• Deep understanding of TCP/IP networks, firewalls, and related protocols (SIP, RTP, RTCP, TLS, ICE, STUN, TURN, WebRTC)

• Programming experience with a major language such as Go, Java, or C

• Experience with scripting languages such as Python, Bash, and LUA

• Experience with Dev Ops tools for cloud infrastructure management and automation such as Terraform and Ansible

• Flexibility and adaptability in learning new technologies and tools

• Strong written, oral, and interpersonal communication skills

• Highly self-motivated and directed

• Keen attention to detail

• Experience operating production services in a major cloud environment (Google Cloud preferred), including networking concepts such as VPCs, load balancing, service discovery, and IAM/security fundamentals

• Comfort participating in on-call rotations and driving incident remediation through postmortems and follow-up engineering work

• 5+ years of experience designing and supporting large scale VoIP networks

• Certifications in Kamailio or OpenSIPS

• Hands-on experience with Kubernetes operations (deployments, services/ingress, Helm/Kustomize, autoscaling, and debugging)

• Experience designing or improving call-quality tooling (MOS/RTCP analytics, jitter/loss monitoring, SBC/edge routing strategies, or capacity planning)

Employment with Weave is contingent upon the successful completion of a background check
, conducted in accordance with applicable laws.

At Weave,
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