Senior Session Border Controller (SBC) Engineer

🕒 July 24

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Miratech

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1989

🤝 B2B

💼 Consulting

☁️ SaaS

💰 Private Equity Round on 2022-04

B2B • Consulting • SaaS

Miratech is a global IT services and consulting company dedicated to helping visionaries change the world. Specializing in outsourcing, software development, and professional services, Miratech supports digital transformation for some of the largest enterprises worldwide. By combining enterprise and start-up innovation, Miratech remains at the forefront of technology while maintaining agility and a culture of relentless performance that has led to high engagement success since its founding in 1989.

📋 Description

• Design, deploy, configure, and maintain enterprise Session Border Controllers (Oracle) • Design SIP trunking, call routing strategies, dial plans, and carrier interconnections for enterprise voice environments • Integrate SBCs with collaboration and contact center platforms such as Microsoft Teams Direct Routing, Genesys, Amazon Connect, and other UC/CC platforms • Configure and support TLS, SRTP, topology hiding, SIP normalization, SIP REFER, PRACK, early offer, and high availability deployments • Design and optimize QoS policies for real-time voice traffic across WAN/LAN environments, including DSCP marking, LLQ, and traffic prioritization • Perform SIP and RTP troubleshooting using tools such as Wireshark, sngrep, Homer, or similar protocol analyzers • Implement SBC security best practices including certificate management, SIP security, fraud prevention, and access hardening • Collaborate with network, security, cloud, and operations teams to deliver highly available voice and collaboration solutions

🎯 Requirements

• 6+ years of experience in Voice Engineering, Unified Communications, or Network Engineering • Hands-on experience designing and implementing enterprise Session Border Controllers (Oracle) • Strong expertise in SIP signaling, SIP trunking, call routing, dial plans, and VoIP protocols • Experience integrating SBCs with Microsoft Teams Direct Routing, Amazon Connect, Genesys, or other UC/CC platforms • Strong understanding of RTP, TLS, SRTP, SIP normalization, SIP REFER, PRACK, early offer, and SIP header manipulation • Experience with enterprise networking including QoS, BGP, OSPF, MPLS, SD-WAN, VRRP/HSRP, VLANs, and IP subnetting • Experience troubleshooting SIP/RTP issues using Wireshark, sngrep, Homer, or similar tools • Strong understanding of SBC security, certificate management, toll fraud prevention, and enterprise voice security best practices • Excellent analytical, troubleshooting, and communication skills

🏖️ Benefits

• Health insurance • Language courses • Relocation program • Professional development opportunities • Certification programs • Mentorship and talent investment programs • Internal mobility and internship opportunities • Dynamic global team environment