Senior Cloud Engineer (Voice Network)
On-siteDublin, Leinster, Ireland
Job Summary
Design, implement, and troubleshoot SIP signaling and RTP media flows supporting VoiceConnect's global communications platform. Manage carrier interconnections, SIP trunks, telecom routing, Session Border Controllers (SBCs), and related voice infrastructure components. Analyze and optimize voice quality metrics, including MOS, latency, jitter, and packet loss to ensure superior customer experience. Design and support enterprise connectivity solutions including IPSec VPNs, Site-to-Site VPNs, ExpressRoute, Direct Connect, and BYOC integrations. Partner directly with enterprise customers during onboarding, migration, troubleshooting, and escalation scenarios. Conduct network readiness assessments, architecture reviews, and customer connectivity workshops. Design and operate highly available network architectures across AWS and Azure environments. Support global multi-region infrastructure, capacity planning, scalability initiatives, and expansion into new cloud regions and carrier networks. Design and implement High Availability (HA) and Disaster Recovery (DR) networking strategies to improve platform resilience. Participate in incident response, root cause analysis, failover testing, and operational improvement initiatives. Automate provisioning, configuration management, routing updates, and VPN onboarding processes using Infrastructure-as-Code principles. Develop reusable automation and integrate network operations into CI/CD and platform engineering workflows.
Required Qualifications
- 3-5 years of experience in Cloud Networking, Telecommunications, Network Engineering, or related infrastructure roles
- Strong understanding of TCP/IP, DNS, NAT, Routing & Switching, network troubleshooting, and traffic engineering concepts
- Hands-on experience with BGP, OSPF, VPN technologies, and enterprise connectivity solutions
- Experience working with SIP, SDP, RTP, RTCP, SIP Trunk, SBC technologies, WebRTC, VoIP troubleshooting, and carrier interconnects
- Hands-on experience with AWS networking services such as VPC, Transit Gateway, and Direct Connect, along with Azure networking services including Virtual Networks and ExpressRoute
- Strong understanding of hybrid cloud networking, multi-cloud connectivity, load balancing, and traffic management
- Experience designing and troubleshooting IPSec VPNs, firewalls, network segmentation, TLS/SRTP, and DDoS mitigation solutions
- Proficiency in Infrastructure-as-Code and automation tools such as Terraform, Ansible, Python, Git, and CI/CD platforms
- Candidates must have current and unrestricted work authorization in the country where the role is based
Desired Qualifications
- Experience with CPaaS, CCaaS, UCaaS, telecom service providers, contact center technologies, or large-scale production platforms is highly desirable
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