Senior DevOps / Voice Infrastructure Engineer

#вакансия #fulltime #remote #devops #senior
Vacancy: Senior DevOps / Voice Infrastructure Engineer
Company: Mad Devs
Salary: 3500-5000$ gross
Work format: remote/full-time
About Us: Mad Devs is a full-stack team specializing in developing and administering large-scale IT products across diverse industries. Many of our products operate in Europe, the USA, and countries across Southeast Asia. We are passionate about tackling complex challenges and delivering innovative solutions that make a meaningful impact globally.

Responsibilities:
• Design, deploy, and maintain SIP/VoIP infrastructure (Asterisk, FreeSWITCH, Kamailio) for AI Agents
• Integrate voice platforms with cloud services (GCP, AWS) and internal AI pipelines
• Ensure high availability and low latency of voice services (HA, load balancing, failover)
• Manage cloud infrastructure via IaC (Terraform) and container orchestration in Kubernetes
• Set up call quality monitoring (MOS, jitter, packet loss) and alerting with Grafana / Victoria Metrics
• Build and optimize CI/CD pipelines (GitHub Actions, ArgoCD) for voice services
• Harden voice infrastructure security: encryption (SRTP, TLS), toll fraud prevention, DoS protection
• Integrate with PSTN/SIP trunk providers, manage DID numbers and call routing

Requirements:
• 3+ years of hands-on experience with Asterisk or FreeSWITCH
• Deep knowledge of SIP, RTP, SRTP protocols
• Experience with SIP proxies — Kamailio or OpenSIPS
• WebRTC integrations
• Trunk configuration, dialplan design, codec negotiation
• GCP and/or AWS hands-on experience (2+ years)
• Kubernetes (GKE or EKS) in production environments
• Terraform — custom modules, multi-environment setups
• Docker, Docker Compose
• CI/CD: GitHub Actions, ArgoCD / Flux
• Prometheus / Victoria Metrics, Grafana dashboards and alerting
• Loki or ELK for log aggregation, voice quality metrics (QoS, MOS)
• Kafka or RabbitMQ, Redis, PostgreSQL, ClickHouse
• English and Russian at B2 level, for communication with stakeholders and team
• Location: any, except Russia and Belarus

Write to us: @MadDevsVacancies_Bot