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Job Details

Senior Software Engineer VoIP India (Remote)

  2025-09-08     Five9     all cities,AK  
Description:

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide.

Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves.

The Team

The Voice Client team delivers crucial voice call capabilities for our customer call/contact centre solutions. Our focus is on smooth and high audio quality to enhance the customer experience.
We develop:

Native applications for Mac OS and Windows OS

Web-based applications using latest web technologies

Our direct interaction with customers allows us to:

Promptly address their concerns

Use their feedback to continually improve the product for an exceptional customer experience and added business value

This position is based out of one of the offices of our affiliate Acqueon Technologies in India, and will adopt the hybrid work arrangements of that location. You will be a member of the Acqueon team with responsibilities supporting Five9 products, collaborating with global teammates based primarily in the United States.

Role Purpose

This role aims to:

Identify customer business challenges

Leverage the Five9 Voice solution and technology

Deliver customer value through solution implementation and ongoing support

It involves:

Direct customer interaction when necessary

Collaboration with other teams in Five9 organization

How You Contribute

Be part of an agile team to develop a scalable, highly available global voice platform

Understand performance and scalability principles and apply them when developing software

Collaborate with Product Managers, Architects, Engineering Leaders, and Test Engineers

Mentor and train junior team members

Skills, Competencies and Qualifications

Required:

10+ years of industry experience in software development and troubleshooting VOIP systems

Good understanding of VOIP protocols like SIP, RTP, RTCP and/or WebRTC

Hands-on experience in writing backend code in C++ (8+ years) on both Windows and Mac OS

Hands-on experience in:

Writing backend code with Java (5+ years)

Experience in troubleshooting tools, audio media analysis, and good debugging skills

Experience working on complex problems and systems

Good technical leadership and capability to lead feature/project development

Experience working within an Agile/Scrum team

Positive, self-motivated, and enthusiastic attitude with a strong sense of ownership

Strong communication skills, both verbal and written

Familiar with React and/or Java Spring Boot framework

Experience with virtual environments like Citrix and VMware

Experience with Contact Centre, IVR, Virtual Agents, and telecommunications service providers is advantageous

Other Requirements

This position requires the ability to be On Call

This position requires flexibility to work with people from both US and Australia at least

Key Relationships

There are no direct reports to this role

Key stakeholders include:

Product Manager

Customer Support teams

Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer.

Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

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