Senior Infrastructure Engineer
C
CallMinerAI, Telephony, CX
Prague, Prague, CzechiaFull-TimeSenior
Salary not disclosed
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Job Details
- Languages
- Czech, English
- Experience
- 5+ years
- Required Skills
- AWSDockerPythonBashKubernetesAzureLinuxNetworking
Requirements
- 5+ years of experience in System Administration, DevOps, VoIP/telephony engineering, or related infrastructure roles.
- Bachelor's degree in Computer Science, Information Technology, or related discipline, or equivalent practical experience.
- Hands-on experience with SIP-based integrations, SIP trunking, call routing, and real-world troubleshooting.
- Strong Linux administration skills (Ubuntu, Debian, CentOS), including Bash and Python scripting.
- Hands-on experience with public cloud platforms (Azure and/or AWS), including compute, networking, and identity services.
- Practical experience with containerization (Docker) and orchestration (Kubernetes).
- Solid understanding of networking fundamentals (TCP/IP, DNS, VPN, firewalls, load balancing, NAT) and security best practices.
- Experience with monitoring, logging, and alerting tools and structured incident management.
- Professional proficiency in Czech and English required.
- Strong organizational and troubleshooting skills in a customer-facing environment.
Responsibilities
- Administer, monitor, and maintain customer-facing cloud infrastructure (Azure and/or AWS, OVH Cloud) supporting CallMiner's intelligent CX automation platform.
- Own SIP telephony integrations for customer deployments, including SIP trunking, direct trunks, and enterprise telephony infrastructure.
- Design reliable call paths balancing latency, audio quality, reliability, and security constraints.
- Diagnose and resolve complex telephony and connectivity issues across customer environments, including call routing, NAT traversal, and firewall configuration.
- Ensure high availability, low latency, and resilience of real-time voice and conversational AI services.
- Lead incident response and root cause analysis for infrastructure, telephony, and connectivity issues.
- Manage containerized workloads and orchestration platforms including Docker and Kubernetes.
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