Nafasi ya kazi :- Senior VoIP Engineer (Systems Integrator) at Inventions Technologies Company Limited February 2026

The Senior VoIP Engineer will lead the design, deployment, and support of enterprise voice and unified communications solutions for multiple customer environments. The role requires deep expertise in SIP-based telephony, strong networking fundamentals, and advanced proficiency in Asterisk-based PBX platforms, including customization, integration, and troubleshooting.

Responsibilities

• 1. Solution Design & Pre-Sales Support
• • Design VoIP and UC solutions tailored to client requirements and SLAs
• • Produce technical proposals, HLD/LLD documents, and BoQs
• • Support pre-sales teams with demos, architecture validation, and solution sizing
• 2. Implementation & Integration
• • Deploy and configure IP-PBX platforms, SIP trunks, gateways, SBCs, and IP phones
• • Install and customize Asterisk PBX systems including dial plans, IVRs, queues, AGI scripts, and integrations
• • Integrate VoIP with CRM, call recording, billing, or contact-center solutions
• • Lead migrations from legacy PBX to IP telephony
• 3. Support & Troubleshooting
• • Provide L3 support for customer voice environments
• • Diagnose SIP signaling, codec negotiation, NAT traversal, and media issues
• • Analyze packet captures and CDRs to resolve complex call problems
• • Optimize QoS, latency, jitter, and bandwidth utilization
• 4. Customer & Vendor Coordination
• • Interface with telecom operators, SIP providers, and equipment vendors
• • Provide technical guidance to customers and internal teams
• • Deliver handover documentation and customer training
• 5. Continuous Improvement
• • Develop reusable deployment templates and automation scripts
• • Recommend new UC technologies, cloud telephony, and hybrid solutions
• • Mentor junior engineers and contribute to knowledge base

Qualifications

• • Bachelor’s degree in IT, Telecommunications, or related field
• • 5+ years of VoIP engineering experience in service provider, integrator, or enterprise environment
• • Strong hands-on expertise with Asterisk PBX administration and customization
• • Deep understanding of SIP, RTP, codecs, NAT traversal, and call routing
• • Solid networking skills (VLANs, routing, QoS, firewalls, VPNs)
• • Experience with Linux server administration

Preferred Experience

• • Contact center deployments and call recording systems
• • SIP trunk integrations with multiple carriers
• • SBC configuration and security hardening
• • Cloud VoIP platforms and hybrid telephony models
• • Scripting (Bash, Python, or similar) for automation

Preferred Certifications

• • VoIP / UC vendor certifications
• • Linux administration certifications
• • Networking certifications
• • Asterisk or open-source telephony training is a strong advantage
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Key Skills

• • Advanced VoIP troubleshooting and packet analysis
• • Strong customer-facing and documentation skills
• • Ability to manage multiple client projects simultaneously
• • Problem-solving mindset and ownership of service delivery

How to Apply:

Job type Full-time Job, To submit your application, please follow the link provided below.

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