Jobs

Voice/Telephony Engineer

|  Posted On: Mar 3, 2026

location:Waltham, MA 02451

Duration:6 Months, Contract

mode of work:Hybrid Remote

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Job Summary

Job Title:  
Voice/Telephony Engineer
Posted Date:  
Mar 3, 2026
Duration:  
6 Months, Contract
Shift(s):  

08:00 - 16:00 EST

Salary ($): 
75.00 - 80.00 per Hourly (compensation based on experience and qualifications)
We care about you! Explore Rangam’s benefits information

Talk to our Recruiter

Name:
 
Bishwaroopa Singh

Email:
 
Bishwaroopa@rangam.com

Phone:
 
425-264-4490

Description

Waltham, Ma
 

Hybrid : Attending office and client sites/substations as needed to progress work, expected to be adhoc and infrequent
 

Principal Voice Network Engineer

  • The Voice/Telephony Engineer provides expert-level design, integration, and support of enterprise telephony services across both legacy PBX platforms and modern IP-based systems (e.g., Cisco Call manager and Microsoft Teams Voice, VoIP).
  • Operating with substantial autonomy, the engineer leads the technical development and lifecycle management of voice infrastructure solutions, ensuring alignment with enterprise architecture and business requirements.
  • This role serves as the principal advisor on telephony systems and drives continuous service improvement initiatives in collaboration with internal teams and external vendors.

Position Responsibilities

Telephony Strategy, Design & Architecture

  • Lead the design and evolution of enterprise voice systems, integrating legacy PBX platforms (e.g., Avaya and Nortel) with modern IP-based telephony solutions (e.g., Cisco Call manager) and cloud-based solutions (e.g. MS Teams).
  • Develop scalable, resilient, and secure telephony architectures that align with broader enterprise IT strategies.
  • Define technical standards and contribute to voice-related architecture roadmaps and governance.

Implementation & Lifecycle Management

  • Oversee deployment, upgrades, and decommissioning of telephony systems, ensuring minimal service disruption and optimal performance.
  • Manage migration initiatives from legacy to IP-based platforms, applying structured change and release management practices.
  • Define and maintain lifecycle management plans and asset inventories for telephony infrastructure.

Operations, Support & Optimization

  • Provide expert-level troubleshooting and resolution of complex voice-related incidents and performance issues.
  • Collaborate with network teams to ensure voice traffic quality and reliability, applying QoS and SIP diagnostics.
  • Monitor system performance and lead continuous improvement efforts including performance tuning and capacity planning.

Advisory & Stakeholder Engagement

  • Act as the subject matter expert (SME) for enterprise voice services, advising business and IT stakeholders on capabilities, constraints, and risks.
  • Translate business requirements into technical specifications and influence telephony investment decisions.
  • Lead vendor engagements, contract reviews, and evaluation of emerging voice technologies.

Governance, Compliance & Documentation

  • Ensure voice systems are compliant with corporate security policies and relevant regulations (e.g., E911, call logging, data protection).
  • Develop and maintain detailed technical documentation, diagrams, and SOPs for telephony environments.
  • Contributes to the development and enforcement of telephony governance policies, design standards, and operational procedures.

AI-Assisted Application Screening

As part of our recruitment process, we may use automated tools or AI-enabled technologies to assist with resume screening and candidate matching. These tools help our recruitment team review applications more efficiently, but they do not make hiring decisions. All final decisions are made by human reviewers.