Application Support Engineer

Job Type: Contract

Work Mode: Hybrid (3 Days from office)

• Required Support Scope Kamailio and PJSIP
• We require contractual software support obligations including
• Consultancy support and SME review
• Incident support and RCA support
• Patching and bugfix support
• Vulnerability remediation support
• Upgrade and version lifecycle support
• Monitoring and operational best practice guidance
• Performance and resilience guidance
• Governance participation
• Documentation and knowledge transfer
• Exit and transition support

• SIP routing logic and routing behaviour analysis
• Dispatcher and failover guidance
• Load balancing and resiliency patterns
• SIP header handling and protocol behaviour analysis
• Troubleshooting routing failures loop scenarios failover behaviour and interoperability issues
• Configuration review for high availability and multinode deployment
• Best practice guidance for reload config refresh behaviour
• Analysis of configuration change impacts across clustered nodes
• Integration support with upstream and downstream SIP platforms
• Customer specific routing proxying and operational runbook review

• In addition PJSIP support must cover
• SIP stack behaviour and interoperability analysis
• SIPREC-related integration support where PJSIP is part of the voice transcription chain
• Media session establishment troubleshooting where relevant to the supported component
• Troubleshooting signalling session stability and protocol level behaviour
• Upgrade and dependency compatibility guidance
• Defect analysis support in customer integrations using PJSIP libraries services
• Tuning and operational guidance relevant to the PJSIP based transcription connector