Sr Software Development Engineer - (C++, Cloud, PBX/Telephony backend)
It’s not everyday that you consider starting a new career challenge.
We’re RingCentral, a global leader in cloud-based communications and collaboration software. We are fundamentally changing the nature of human interaction—giving people the freedom to connect powerfully and personally from anywhere, at any time, on any device.
We’re a $2 billion company that’s growing at 30+% annually and we’re expanding our Solutions Engineering Team to make sure we stay ahead of the competition.
Department: Engineering – PBX Engineering Team
Experience: 9+ years
Work Location: Bangalore Hybrid
Primary Responsibilities:
Design, development, and automation of Server Side (Telco) components of RingCentral’s Phone solution to meet business requirements and satisfy top-grade stability and quality standards.
This is a hands-on role with individual contributions, actively participating in daily coding and code reviews.
Maintain high standards of quality in product documentation. Ensure that product documentation remains clear, comprehensive, and up-to-date.
Minimum Qualifications, Education and Experience:
10+ years of experience in developing complex distributed systems
Strong Hands-on experience in developing cloud based backend services using modern C++ (11, 14, 17 or later), linux, open source libraries etc.
Hands-on experience on deploying code on public cloud services (AWS, Azure, GCP) using container technologies (docker, k8s).
Good understanding of Networking and TCP/UDP protocols troubleshooting
Experience in telephony, VoIP, or real-time systems.
Strong grasp of algorithms, data structures, and network communication.
Proven experience in building distributed, high-performance systems.
Understanding of Agile development methodologies (Scrum, Kanban)
Preferred:
Experience with cloud technologies
Prior experience with India-based engineering teams.
Experience with AI code gen

RingCentral, Inc. (NYSE: RNG) is a global leader in agentic voice AI–powered cloud business communications, delivering an integrated platform for business phone, SMS, contact center, workforce engagement management, virtual and hybrid events, video collaboration, and messaging.
Powered by advanced AI capabilities, RingCentral AI Receptionist (AIR), AI Virtual Assistant (AVA), and AI Conversation Expert (ACE) address every phase of the conversation journey — before, during, and after each human interaction.
With RingCentral, businesses can work smarter, respond faster, and connect more meaningfully with their customers.
Our decades-long leadership in reliable and secure cloud communications has earned us the trust of over 500,000 customers and millions of users worldwide.
RingCentral is headquartered in Belmont, California, and has offices around the world.