Infrastructure Support Manager
Infrastructure Support Manager
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Job Description
We re looking for an Infrastructure Support Manager to maintain optimize and scale our core voice infrastructure and networks. This includes managing VoIP systems such as FreeSWITCH OpenSIPS and Kamailio handling SIP trunk configurations and ensuring backend stability for reliable highquality calls.
The ideal candidate is not only a handson engineer but also a strong collaborator who thrives on solving complex infrastructure problems improving uptime and ensuring performance. If that sounds like you we d love to meet you.
Key Responsibilities
- Maintain monitor and optimize FreeSWITCH OpenSIPS Kamailio and other core VoIP infrastructure
- Troubleshoot and resolve SIP trunk issues to ensure consistent highquality voice service
Build and maintain secure scalable SIP server configurations (IVRs routing rules extensions call queues)
- Interface with customers and internal teams to resolve VoIP and networkrelated issues
- Support Product and Engineering teams with voice infrastructure needs and implementations
Collaborate with Operations and Growth teams on CRM and call center tool integrations
- Ensure network configurations (firewalls NAT QoS) support optimal VoIP performance
- Diagnose call quality issues using tools like Wireshark RTCP and SIP debugging utilities
Implement secure call handling through SIP authentication encryption and compliance standards
- Keep infrastructure documentation up to date and accessible
- Implement best practices for upgrades patch management and performance tuning
Contribute to costeffective international routing strategies and billing systems
Key Success Metrics
- Issue Resolution Time Reduction in VoIP and network troubleshooting time
- Uptime & Availability Maintaining >99.9% availability for all voice infrastructure
Process & Documentation Ensuring infrastructure documentation is always current and clear
Requirements
- 4 years of experience with VoIP technologies (FreeSWITCH OpenSIPS Kamailio Asterisk etc.)
- Proven expertise in SIP trunking PBX systems call routing and SIP protocol handling
- Strong networking knowledge: TCP/IP NAT VPN QoS firewalls
- Experience with tools like Wireshark RTCP and SIP commandline debugging tools
- Scripting and automation experience is a strong plus
- Familiarity with VoIP integrations with CRM and call center tools (e.g. Salesforce HubSpot)
Strong skills in documentation incident management and crossfunctional communication
Benefits
Why Join Us
- Build infrastructure powering thousands of business conversations across Africa
- Take ownership in a handson highimpact engineering role
- Join a fastgrowing company with a strong tech and performance culture
- Competitive salary performancebased incentives
Be part of the team shaping how African SMEs communicate
Work Style: Hybrid (2 office days per week)
Employment Type
Full Time
