VoIP 软交换与NOC技术人员及交付（印度）
VoIP Softswitch & NOC Technician & Delivery (India)
这是一个远程职位。
Signalmash 是一家电信服务提供商，提供高质量语音服务和运营商级解决方案。我们正在寻找一位经验丰富的 VoIP Softswitch & NOC 技术人员加入我们在印度的技术运营团队。
在这个职位中，你将负责我们的语音基础设施核心，管理我们的 Class 4 软交换平台，建立和维护运营商互联，并确保美国工作时间内的网络性能和可靠性。
你将负责的工作
· 配置和管理 Class 4 软交换路由，包括 LCR 优化和流量管理
- 配置和维护计费和计费系统，以确保准确的通话处理和账单生成
- 建立和管理与客户、运营商和供应商合作伙伴的互联
- 使用 Wireshark/tcpdump 分析 PCAP 文件，以诊断通话质量、路由和协议问题
- 通过 NOC 工具监控系统性能、容量和通话质量
- 创建、管理和解决故障工单，协调客户和供应商
- 测试和验证新路由和中继，确保正确的通话流程和音频质量
- 排查 SIP 信令、媒体路径、编解码器和连接问题
- 维护配置、网络图和互联规格的详细文档
- 响应警报/告警，以减少中断并保持 SLA
- 参与轮班值班，实现 24/7 覆盖
要求
· 2 年以上 Class 4 软交换平台的实际操作经验
- 具有 PeerEdge by 46 Labs 的经验优先，或类似平台（SipNav、DeNova Labs、Veriswitch、FreeSWITCH、Kamailio、OpenSIPS）
- 具备配置路由、计费和计费系统的实际经验
- 对 VoIP 协议有深入理解：SIP、RTP、RTCP、SDP
- 熟练使用数据包捕获/分析工具（Wireshark、tcpdump）
- 对 TCP/IP、UDP、网络基础和 QoS 有扎实的理解
- 具有诊断编解码器问题、延迟、抖动和丢包的经验
- 熟悉防火墙、NAT 穿透和 SBC
- 具有 NOC 工单系统和流程的经验
- 具有良好的文档习惯和细致的关注点
- 优秀的书面和口语英语沟通能力
- 能够独立工作并处理多项优先任务
优先考虑
· 具有 CDR 分析和欺诈检测/预防的经验
- 了解 SS7、ISUP 或 TDM 到 IP 网关
- 具有脚本编写（Python、Bash 或类似）能力用于自动化
- 相关行业认证
查看英文原文
This is a remote position.
Signalmash is a telecommunications provider delivering high-quality voice services and carrier-grade solutions. We’re looking for an experiencedVoIP Softswitch & NOC Technicianto join our technical operations team in India.
In this role, you’ll be at the core of our voice infrastructure, managing our Class 4 softswitch platform, establishing and maintaining carrier interconnections, and ensuring network performance and reliability during US business hours.
What You’ll Do
· Configure and manage Class 4 softswitch routing, including LCR optimization and traffic management
- Configure and maintain billing and rating systems for accurate call processing and invoicing
- Set up and manage interconnections with customers, carriers, and vendor partners
- Analyze PCAPs using Wireshark/tcpdump to diagnose call quality, routing, and protocol issues
- Monitor system performance, capacity, and call quality through NOC tools
- Create, manage, and resolve trouble tickets, coordinating with customers and vendors
- Test and validate new routes and trunks for correct call flow and audio quality
- Troubleshoot SIP signaling, media path, codec, and connectivity issues
- Maintain detailed documentation of configurations, network diagrams, and interconnection specs
- Respond to alerts/alarms to minimize disruptions and maintain SLAs
- Participate in on-call rotation for 24/7 coverage
Requirements
- 2+ years hands-on experience with Class 4 softswitch platforms
- Experience withPeerEdge by 46 Labsstrongly preferred, or similar platforms (SipNav, DeNova Labs, Veriswitch, FreeSWITCH, Kamailio, OpenSIPS)
- Proven experience configuring routing, billing, and rating systems
- Strong understanding of VoIP protocols: SIP, RTP, RTCP, SDP
- Proficiency with packet capture/analysis tools (Wireshark, tcpdump)
- Solid understanding of TCP/IP, UDP, networking fundamentals, and QoS
- Experience diagnosing codec issues, latency, jitter, and packet loss
- Familiarity with firewalls, NAT traversal, and SBCs
- Experience with NOC ticketing systems and procedures
- Strong documentation habits and attention to detail
- Excellent written and verbal English communication
- Ability to work independently and handle multiple priorities
Preferred
- Experience with CDR analysis and fraud detection/prevention
- Knowledge of SS7, ISUP, or TDM-to-IP gateways
- Scripting (Python, Bash, or similar) for automation
- Relevant industry certifications (Cisco, Juniper, VoIP-specific)
- Experience in a carrier / wholesale telecom environment
Benefits
- Competitive salary and comprehensive benefits
- Fully remote role aligned with US business hours
- Work on carrier-grade, cutting-edge VoIP infrastructure
- Collaborative team with strong telecom expertise
- Clear growth path and opportunities for skill development
- Direct impact on critical communications services
Originally posted on Himalayas