Location: Boston, MA
Job Description
Senior Telecom EngineerWe are seeking a talented and motivated Senior Telecom Engineer to join our Telecom team. This role is responsible for planning, designing, implementing, and operating enterprise voice and collaboration platforms across current and future on-premises and cloud environments (PBX, Contact Center, Workforce Management, UCaaS, CCaaS, video, fax/data).
The company is planning a significant modernization of its telephony stack, and the successful candidate will be a key driver of this transformation. You will lead efforts to evolve our legacy voice infrastructure into a resilient, cloud-enabled, and integrated collaboration ecosystem, ensuring scalability, security, and superior user experience.
As the subject matter expert and Tier 3 escalation point, you will support technologies including Avaya, Verint Workforce Management, Mutare Voicemail, Five9, Calero Call Accounting, SIP trunking/PSTN, IVR/call flows, e911, and integrations with business applications. You will drive architecture and standards, deliver projects, ensure resilience and compliance, and partner with carriers and vendors to provide reliable, secure, and high-quality voice services.
Essential Functions and Responsibilities:
Architecture, Design & Standards
- Own end-to-end voice/UC/CC architecture (on-prem PBX and Contact Center, future UCaaS/CCaaS) including dial plans, call routing, auto attendants, hunt groups, voicemail, video, and fax.
- Define, document, and enforce configuration standards, security controls, versioning, and e911 policies across platforms and sites.
- Lead design reviews for Contact Center solutions including IVR, Studio/scripting, call flows, workforce engagement/recording, and quality management.
- Engineer resiliency (e.g., survivable branch/remote telephony, SBC high availability, QoS/VLAN design) and perform capacity planning.
- Execute installations, upgrades, migrations, MACD, and integrations; maintain patches, backups, DR runbooks, and platform hygiene.
- Provide Tier 3 diagnostics and resolution for complex voice, video, and collaboration incidents (SIP, signaling/media, QoS, SBC, gateway).
- Administer and optimize PSTN/SIP trunking, number administration/porting, carrier services, and policies.
- Monitor and troubleshoot using CDR/call tracing and network monitoring tools (Wireshark, SolarWinds, etc.) and vendor consoles.
- Support and transition legacy platforms (e.g., Avaya CMS,) toward UCaaS/CCaaS; document cutover plans and decommissioning.
- Design and optimize IVR/IVA and call flows (skills, proficiency, queues), routing, self-service, and KPI/experience outcomes.
- Oversee integration with CRMs, third-party apps, REST APIs, .NET, recording/quality platforms (e.g., Verint), paging, and analytics.
- Provide program leadership for Five9 or similar platforms, track roadmaps, SLAs, and adoption.
- Maintain comprehensive runbooks, SOPs, diagrams, and inventories (dial plans, IP schemas, QoS policies).
- Deliver technical/admin training and knowledge transfer to IT/Telecom teams, service desk, and end users.
- Partner with Network, Information Security, Service Desk, PMO, and Call Center leadership to ensure secure, scalable, and integrated services.
- Manage vendors/OEMs/carriers and drive RCA/problem management to prevent recurrence.
Qualifications and Education:
- Bachelor’s degree in Computer Science, Information Systems, or equivalent experience.
- 5+ years in enterprise voice infrastructure, UC/CC architecture, and voice systems administration/operations.
- Demonstrated breadth across UC/CC domains: UC, CC, SIP, dial plans, CDR/call tracing.
- Strong experience with Avaya (Communication Manager, System Manager, Session Manager, Aura messaging/conferencing; CMS).
- CCaaS experience: Five9, NICE, Verint or similar.
- Hands-on with Teams Phone, Zoom Phone, and/or other UCaaS platforms.
- Expertise in SIP trunking, carrier services, number porting/administration, PSTN policies.
- IVR/Studio scripting, call flow design, and functional workflow development.
- Practical knowledge of REST APIs, .NET for integrations; ability to collaborate with app teams on extensibility.
- Networking fundamentals for voice: SIP/H.323, RTP, QoS, VLAN tagging, DHCP, DNS, SNMP; LAN/WAN interop.
- Resiliency concepts (e.g., SRST or equivalent remote survivability), SBCs, and voice gateways.
- End-user voice services: physical phones, softphones, ATAs, remote worker scenarios; CDR/call reporting.
- Excellent communication, documentation, stakeholder engagement, and vendor management skills.
- Experience with security/compliance for UC/CC (E911, audit readiness, call recording retention, privacy).
- Familiarity with data/voice cabling standards and data center practices (rack layout, power, fiber/copper termination).