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
Skills
About Sterlite Technologies Limited
About STL - STL is a leading global optical and digital solutions company providing advanced offerings to build 5G, Rural, FTTx, Enterprise and Data Centre networks. About STL Digital - STL Digital, a wholly owned subsidiary of STL, is a global IT services and consulting company dedicated to delivering exceptional digital transformation experiences for enterprises with a comprehensive portfolio of services, including product engineering, cloud and cyber security, data and AI, and enterprise SaaS.
