Lead SIP and VoIP engineering efforts, architect scalable solutions, optimize call flows, and collaborate with teams to align with business goals.
Company Introduction
Qualifications:
Soft Skills
Codebase is a young software services company with a great pool of tech-savvy developers. We started in the spring of 2018, and have been growing aggressively. We are located in Pune, India, and serve software product companies across the globe; focusing on enterprise SaaS, eCommerce, cloud, and application development.
We’re looking for a Subject Matter Expert (SME) for one of our client with a forward-thinking communications platform revolutionizing how businesses connect. They specialize in delivering robust, scalable VoIP and SIP solutions with a focus on reliability, innovation, and seamless customer experience. The position is to lead SIP and VoIP engineering efforts and contribute to the design, optimization, and advancement of our core communication products
- Serve as the in-house expert on SIP and VoIP engineering, driving architectural decisions and product innovations.
- Architect and deploy scalable SIP trunking solutions, including dynamic provisioning, multi-region failover, and carrier interconnect strategies.
- Design and implement integration workflows between cloud-hosted and on-premises PBX systems.
- Analyze and optimize SIP call flows including INVITE, BYE, ACK messages, SDP negotiation, and NAT traversal techniques (STUN, TURN, ICE).
- Manage codec handling (e.g., G.711, G.729, Opus) and ensure robust media negotiation and quality.
- Lead SIP trace diagnostics and monitoring using tools like Wireshark and sngrep; perform deep analysis of registration tracking and system health.
- Administer SIP registration servers, applying effective load balancing and failover strategies.
- Collaborate with cross-functional teams including security, compliance, and product management to ensure solutions align with organizational goals.
Qualifications:
- 8+ years of hands-on experience in SIP and VoIP engineering.
- Deep understanding of SIP protocols, message structures, call routing, media negotiation, and NAT traversal.
- Proven experience designing and deploying elastic SIP trunking architectures.
- Strong command over SIP monitoring and analysis tools.
- Experience integrating VoIP systems with cloud and on-prem PBX environments.
- Solid grasp of telecom codecs and media stream management.
- Familiarity with governance, risk, and compliance standards applicable to telecom and SaaS domains.
- Nice to have
- Experience in a high-growth SaaS or telecommunications environment.
- Exposure to security best practices in VoIP systems.
- Ability to convey complex technical concepts to non-technical stakeholders.
- Strong documentation, communication, and leadership abilities
Soft Skills
- Communication
- Strong oral and written communication skills.
- Must be able to clearly and effectively communicate work status, risks, and issues.
- Communicate verbally and be cooperative
- Communicate on Jira - prior knowledge of using Jira is mandatory
- Communicate on GitHub - prior knowledge of using GitHub or Bitbucket is mandatory
- The use of video during all meetings is preferred
- Task ownership
- Strong drive to get things done
- Capability to unblock themselves and push towards achieving the goal
- Ability to adapt to changes in task priorities very quickly (do not be married to one single task)
- Collaboration
- Demonstrate work on every single task you own - Knowledge of using loom platform is strongly recommended
Top Skills
Bitbucket
Cloud-Hosted Pbx
G.711
G.729
Git
JIRA
On-Prem Pbx
Opus
Sip
Sip Trunking
Sngrep
Voip
Wireshark
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