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About the role
Role description Job Title: Engineering Manager Location: Ahmedabad| Experience: 10+Years Work Mode: WFO Who We Are at STL Digital , we don't just build software; we engineer digital transformations. We partner with global enterprises with a comprehensive portfolio of services, including Product Engineering, Cloud and Cybersecurity, Data and AI, and Enterprise SaaS. We're hiring a hands-on Engineering Manager to lead and actively build the core of our voice communications stack. You will be a player-coach : owning critical VoIP/SIP/C++ development while guiding developers across multiple components and languages ( PHP, JavaScript/Node.js, Java/Spring Boot, Struts, Perl , databases, and Linux infrastructure). This role is ideal for someone who can confidently dive into SIP traces and C++ code Required Qualifications 10+ years building production systems in VoIP / SIP environments, with proven troubleshooting experience. Strong C++ development experience (modern C++ preferred), including debugging and performance analysis in Linux Deep protocol understanding: SIP , SDP , RTP/RTCP (and common VoIP failure modes) Strong Linux and networking fundamentals (Ubuntu, system tuning, sockets, firewall/NAT behavior, TLS basics) Experience integrating or operating SIP/media components such as: Asterisk (dialplan/call flows, AMI/ARI familiarity is a plus) OpenSIPS/OpenSIP or similar SIP proxy/SBC stacks (Kamailio, FreeSWITCH, etc.) Demonstrated ability to lead engineers across a mixed stack (backend + UI) through code reviews and technical direction Clear communication skills—able to explain complex VoIP issues to non-VoIP engineers and stakeholders
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