Engineering Manager

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