Senior DevOps / Voice Infrastructure Engineer

As we grow and take on exciting new challenges, we're on the lookout for exceptional DevOps Engineers to join our team. Our goal is to build a high-performing group of DevOps engineers who thrive on innovation and excellence. If you're passionate about cloud technologies, and building scalable solutions, we'd love for you to be part of shaping the future of our products. Senior DevOps, * 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, At Mad Devs, you will be part of a company that values creativity, strategic thinking, and continuous improvement. You will work on meaningful projects that impact millions of users worldwide alongside a talented and supportive team. By joining our team, you will have the opportunity to make a real impact, grow your career, and contribute to developing cutting-edge solutions in the world of backend engineering.

Employees benefits

Flexible working hours Remote-first culture Long-term projects Salary in dollars Professional communities Onsite business trips Training budget Paid conferences Hi, I'm Ekaterina.

• Compliance experience: HIPAA, GDPR, SOC 2
• Ansible or other configuration management tools
• Service mesh experience (Linkerd or Istio)
• Python or Bash scripting for automation

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

Mad Devs is a full-stack team specializing in developing and administering large-scale IT products across various industries. Many of our products are used in Europe, the USA, and Southeast Asia. We are passionate about tackling complex challenges and delivering innovative solutions that make a significant global impact. #LINKD