Senior Voice Engineer, SIP, Ribbon SBC, VoIP (Contract)

Singapore
$10,000.00 - $14,000.00 Monthly Market Aligned
Default

Sector: 

Technology

Function:

Technology

Contact Name:

Aviral Bhargava

Expiry Date:

19-Aug-2026

Job Ref:

JN -072026-494532

Date Published:

20-Jul-2026

Role Overview

We are looking for an experienced Voice Engineer with strong expertise in Ribbon/Sonus Session Border Controllers (SBC), SIP and enterprise VoIP technologies to support a global engineering team. This role combines hands-on engineering with project delivery, solution design and stakeholder communication across large-scale voice infrastructure initiatives.

Key Responsibilities

  • Provide program guidance and develop program timelines from an engineering point of view in partnership with our program management office
  • Support the delivery of business and infrastructure transformation projects.
  • Direct and communicate with leadership on status of programs and open issues.
  • Develop ROM/SOW quotes for projects for equipment placement, licensing
  • Assist in the development of project supporting documentation/information to include Bill of Materials (BOMs), cost estimates and equipment placement requests.
  • Provide local software and hardware support requiring complex integrated configurations in the areas of Sonus/Ribbon SBC (9k, 7k, 2k), SecureLogix, Intrado E911, SIP and Session Management, LAN/WAN, VoIP, with integrations to products such as Avaya, Cisco, and Genesys.
  • Complete SIT testing, document results, develop and write scripts, MOP and low-level designs for implementation and configuration of Sonus/Ribbon SBC, SecureLogix, Intrado E911 and associated integrations.

Job Requirements

  • 10+ years' experience in telecommunications, enterprise voice or unified communications engineering.
  • Strong experience with Ribbon/Sonus Session Border Controllers (SBC) and SIP/TDM trunking.
  • Strong understanding of SIP, RTP/RTCP, ISDN, H.323, MGCP, H.248 and voice codecs.
  • Experience supporting enterprise VoIP environments integrating Avaya, Cisco and/or Genesys.
  • Experience with LAN/WAN networking, QoS, bandwidth analysis and troubleshooting.
  • Excellent customer service skills including reporting, organization, written and oral communication and task prioritization.
  • Experience in program communication and program management
  • Communication skills a must, PowerPoint, Visio, structured program updates
  • Must be highly motivated and a self-directed individual.
  • Experience with QoS configurations, jitter, diagnosing and tuning QoS and performing bandwidth analysis.
  • Extensive PBX/ACD experience, working knowledge of CTI, IVR, call flows, vectors, and adjunct routing, system architecture, design principles and implementation
  • Experience with configuration and support experience in a complex multi-layered network environment.
  • Participate in cross-functional teams and ability to work effectively in a geographically dispersed team.
  • Experience working under tight deadlines and high-pressure environment.
  • Excellent troubleshooting and analytical skills.
  • Capable of quickly learning new technologies and procedures, as well as being willing to train others in procedures mastered as part of implementations.

Argyll Scott Asia is acting as an Employment Business in relation to this vacancy.

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