Job Description: VoIP EngineerPosition: VoIP Engineer Job Summary We are looking for a skilled VoIP Engineer responsible for designing, deploying, configuring, maintaining, and troubleshooting Voice over IP (VoIP) infrastructure. The role involves managing SIP-based communication systems, VoIP gateways, PBX platforms, call routing, and ensuring high availability and quality of voice services.
Key Responsibilities - Design, configure, and maintain VoIP networks and telephony systems.
- Install, configure, and troubleshoot IP PBX platforms such as Asterisk, FreeSWITCH, Cisco CUCM, 3CX, or similar systems.
- Manage SIP trunks, SIP signaling, RTP media, codecs, and call routing configurations.
- Perform VoIP troubleshooting using tools such as Wireshark, tcpdump, and SIP monitoring platforms.
- Monitor voice quality metrics including latency, jitter, packet loss, and MOS scores.
- Configure and maintain VoIP gateways, Clients (Session Border Controllers), routers, and firewalls.
- Handle SIP registration, NAT traversal, STUN/TURN, and firewall-related VoIP issues.
- Implement call flows, IVR, dial plans, extensions, and routing rules.
- Support VoIP integrations with CRM, contact center, and unified communications platforms.
- Perform system upgrades, backups, patches, and performance tuning.
- Document network designs, configurations, troubleshooting procedures, and operational processes.
- Provide technical support and incident resolution for VoIP-related issues.
Required Skills & Qualifications - Bachelor's degree in Computer Science, Information Technology, Telecommunications, or equivalent experience.
- Experience with VoIP protocols including SIP, RTP, SDP, TCP/IP, UDP, and DNS.
- Strong knowledge of IP networking concepts: VLANs, routing, NAT, DHCP, QoS, and firewalls.
- Hands-on experience with SIP troubleshooting and call flow analysis.
- Experience with VoIP platforms such as:
- Asterisk / FreePBX
- FreeSWITCH
- Cisco CUCM
- 3CX
- BroadWorks or similar platforms
- Familiarity with Linux servers and command-line troubleshooting.
- Knowledge of VoIP security practices and fraud prevention.
- Experience with cloud VoIP deployments (AWS/Azure/GCP) is a plus.
Preferred Certifications - Cisco CCNA / CCNP Collaboration
- SIP/VoIP vendor certifications
- Linux certifications
- Networking or cloud certifications
Soft Skills - Strong analytical and problem-solving abilities.
- Good communication and documentation skills.
- Ability to work independently and handle production issues.
- Willingness to participate in on-call support when required.
Experience Level - 2-5+ years of experience in VoIP engineering, SIP support, or telecom operations.
