Principal Engineer-Tel

4 weeks ago

Bengaluru, India Exotel Techcom Pvt Ltd Full time
About us

Exotel is a leading full-stack customer engagement platform and business-focused virtual telecom operator. Exotel has also recently received a virtual telecom operator license to offer cost-effective end-to-end VoIP telephony services, making the company a 100% compliant cloud calling operator. Exotel was founded in 2011 and has an impressive cloud-based product suite that drives 70 million conversations daily for more than 6000 businesses in India, Southeast Asia, the Middle East, and Africa. Today, Exotel's omnichannel contact centre, communication API suite, and conversational AI platform help some of the fastest-growing businesses in emerging countries manage customer engagement. They have a $50 million ARR and a $100 million Series D funding round.

Exotel has won The ET StartUp Awards 2022 under the Comeback Kid category.

What will you do?
  • Influence the product roadmap as a technical leader
  • Exploration and adoption of new technologies to improve system reliability and efficiency.
  • Technical guidance and mentoring to the Project teams on architecture and design.
  • Help enforce and/or tweak SLAs for existing deployments to improve efficiency.
  • Build and improve, and enforce processes to improve efficiency.
  • Build and guide the team for operational excellence.
  • Stakeholder management
  • Mentor junior engineers in the team.
What do we look for?
Must Haves
  • 8+ years of experience in the VoIP domain.
  • Bachelor's or Master's degree in computer science or equivalent.
  • Solid knowledge of VoIP domain technologies, including SIP, SDP, RTP, RTCP.
  • Solid knowledge of IP networking concepts, including L2/L3 routing, Subnets, VLANs,and NAT traversal.
  • Solid knowledge of network impairments and their impact on call quality.
  • Experience leading project teams to deliver critical software solutions.
  • 6+ years of experience in building high-availability, scalable and fault-tolerant VoIP systems.
  • 4+ years of experience in working with server-side VoIP applications like Asterisk, Kamailio or equivalent
  • 3+ years of experience in working with a major cloud platform like AWS (preferred), GCP, or Azure.
  • 2+ years of experience in the design and development of REST-based microservices.
  • Experience in programming with one of Golang (preferred), Ruby, C/C++
  • Experience in scripting with shell and Python
  • Experience with data stores such as MySQL, Postgres
  • Good understanding of data structures, multi-threading and concurrency concepts.
  • Proficiency in working in a Linux environment
  • Experience working in Agile SDLC process
  • Strong analytical, problem-solving and troubleshooting skills
  • Excellent written and verbal communication skills
  • Team player, flexible and able to work in a fast-paced environment
  • A "DevOps" mindset. You own what you will develop.
Good to Have
  • Experience with custom development on Asterisk/Freeswitch/Kamailio/Opensips is a plus
  • Experience with SIPp or any other SIP testing tools
  • Experience with ISDN, WebRTC technologies
  • Experience with Elastic Search queries and visualisation tools like Grafana, Kibana
  • Experience with DevOps tools like Ansible, Jenkins, Terraform, Kubernetes, Git
  • Experience with monitoring frameworks like Nagios, Prometheus
  • Experience with developing Android, iOS-based VoIP clients
  • Experience with Java, JavaScript languages

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