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Weave is seeking a VoIP Engineer to maintain and optimize a distributed, cloud-based voice platform. You will work hands-on with SIP/RTP infrastructure and core components including Kamailio, RTPengine, FreeSWITCH, and Homer/HEPIC, collaborating cross-functionally with engineering and operations teams to improve reliability, performance, and customer call quality.
Key responsibilities include:
- Growing and managing a distributed cloud-based VoIP platform
- Optimizing and troubleshooting FreeSWITCH and Kamailio configurations for performance, resiliency, and reliability
- Designing, building, testing, deploying, and maintaining services supporting the voice platform
- Monitoring and analyzing VoIP network performance to identify improvement areas and implement solutions
- Troubleshooting VoIP-related issues including call quality problems, signaling/connectivity issues, and system outages
- Developing Golang-based microservices and containers for the voice ecosystem
- Deploying and operating services in Kubernetes environments
- Maintaining and configuring Kamailio and FreeSWITCH instances
- Implementing and improving observability for SIP/RTP flows using HEP/Homer and telemetry (metrics, logs, traces)
- Partnering with SRE/Platform teams to improve CI/CD, infrastructure-as-code, and reliability practices including automated rollouts, canarying, and repeatable environments
The role reports to an Engineering Manager and offers flexibility to work remote, in-office, or hybrid.
REQUIREMENTS:
- Previous experience working as a VoIP network engineer
- Experience with VoIP applications such as Kamailio, OpenSIPS, FreeSWITCH, 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 DevOps 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
PREFERRED QUALIFICATIONS:
- 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)
