Senior Systems Engineer - Telephony

SES Satellites; Chennai District; On-site; INR 1,800,000 - 3,400,000; Full time

Job summary

SES Satellites is seeking a Senior Systems Engineer to design, implement, and maintain enterprise Unified Communications platforms and voice infrastructure. You will provide technical leadership, support complex problem resolution, and drive architectural consistency across environments.

You will work on Teams voice features, contact center integrations, SIP trunking, and collaboration tools, collaborating with network, security, and infrastructure teams to ensure reliable services at scale.

Qualifications

• 7+ years of experience in systems engineering or unified communications.
• Experience designing and implementing enterprise UC solutions.
• Experience with voice platforms, call centers, and collaboration tools.
• Experience with Windows and Linux server OS.

Responsibilities

• Support deployment, configuration, and maintenance of UC and collaboration platforms.
• Configure Microsoft Teams voice features: call queues, auto attendants, voice routing.
• Maintain contact center integrations (NICE inContact) and ensure proper routing.
• Assist administration of RingCentral services, including numbers and messaging.
• Manage SIP trunking and voice integrations with telecom providers and SBCs.
• Support renewals and vendor coordination for platforms and services.
• Troubleshoot voice, signaling, and media issues across UC and contact centers.
• Collaborate with network, infrastructure, and security teams for reliability.
• Assist in upgrades, migrations, and platform improvements.
• Develop technical docs and operate procedures; participate in on-call rotations.

Skills

UC architecture

Voice infrastructure

Enterprise system integration

Networking & troubleshooting

Education

Bachelor’s degree in CS/IT/Telecom

Tools

NICE inContact

RingCentral

SIP trunking

Job description

Job Description:

Requisition Number: 19893

Contract Type: Permanent

Location(s):

Chennai, IN

Senior Systems Engineer - Telphony

Role Description Summary

The Senior Systems Engineer plays a key role in designing, implementing, and maintaining enterprise Unified Communications platforms and voice infrastructure. The role contributes to system architecture, technical evaluation, and deployment of communication solutions that support global operations. The position provides technical leadership, supports complex problem resolution, and ensures consistent architecture and operational standards across environments. This role also supports innovation, operational excellence, and continuous improvement in communication services.

Primary Responsibilities / Key Result Areas

• Support the deployment, configuration, and maintenance of Unified Communications and collaboration platforms, including Microsoft Teams voice, conferencing systems, and enterprise telephony services.
• Configure and support Microsoft Teams voice features including call queues, auto attendants, voice routing, and enterprise calling capabilities.
• Support and maintain contact center integrations, including NICE inContact (CXone), ensuring proper call routing and interaction between Teams infrastructure and contact center platforms.
• Assist in the administration and support of RingCentral communication services, including number management, messaging integrations, and service configurations.
• Manage and maintain SIP trunking and voice integrations, including coordination with telecom providers and session border controllers (SBCs).
• Support service renewals and vendor coordination for communication platforms such as RingCentral, contact center services, and telecom providers, ensuring continuity of service and compliance with enterprise standards.
• Troubleshoot and resolve voice, call routing, signaling, and media-related issues across Unified Communications and contact center environments.
• Collaborate with network, infrastructure, and security teams to ensure stable and secure communication services across the enterprise.
• Assist in system upgrades, migrations, and platform improvements, including transitions between communication platforms and contact center solutions.
• Monitor system performance and availability of communication platforms and recommend improvements to maintain reliability and operational efficiency.
• Develop and maintain technical documentation, operational procedures, and configuration standards for Unified Communications and contact center platforms.
• Provide technical support and escalation assistance for complex communication platform issues and participate in on-call support rotations when required

COMPETENCIES

Technical Competencies

• Unified Communications architecture and design
• Voice infrastructure and collaboration platforms
• Enterprise system integration
• Networking and troubleshooting

Qualifications & Experience

Bachelor’s degree in Computer Science, Information Technology, Telecommunications, or a related technical field.

Experience

• Minimum 7+ years of experience in systems engineering or unified communications engineering.
• Proven experience designing and implementing enterprise unified communications solutions.
• Experience with voice platforms, call center technologies, and collaboration tools.
• Knowledge of online meeting platforms and conferencing systems.
• Experience with Windows and Linux server operating systems.

SES and its Affiliated Companies are committed to providing fair and equal employment opportunities to all. We are an Equal Opportunity employer and will consider all qualified applicants for employment without regard to race, color, religion, gender, pregnancy, sex, sexual orientation, gender identity, national origin, age, genetic information, protected veteran status, disability, or any other basis protected by local, state, or federal law.

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