Sr. Unified Communications Engineer

Requisition Title
:
Telecommunications Engineer: IV (Lead)

Descriptive title: Senior Unified Communications Engineer

Location: Inver Grove Heights, MN (Hybrid – ~1 day onsite per week; must already live in the local area to be formally considered )

Duration: 7 months initially, Possibility to extend (desired start date: 1/26/26)

Our client has an exciting opportunity within their Information Technology group. We are seeking a Senior Unified Communications Engineer to deliver modern voice and collaboration technologies supporting the organization’s enterprise communication and customer engagement platforms. This role will play a key part in our ongoing transformation to Microsoft Teams Voice and Contact Center as a Service (CCaaS) platforms such as Five9, ensuring reliable, scalable, and secure unified communications across our client.

• Serve as a senior technical engineer and subject matter expert for Microsoft Teams Voice, telephony infrastructure, and CCaaS solutions (Five9 preferred).
• Lead the design, configuration, and deployment of enterprise‑wide unified communications solutions, including migrations from legacy systems to Microsoft Teams Voice.
• Develop and maintain end‑to‑end Visio diagrams, call flow documentation, and detailed specifications for telephony solutions.
• Collaborate with business stakeholders to gather requirements and translate them into effective voice and collaboration designs that support business goals and processes.
• Develop telecommunications solutions addressing user and departmental needs across multiple business units.
• Administer, monitor, and troubleshoot telephony‑related hardware, software, and infrastructure, including QoS, call routing, and trunking.
• Manage and optimize PSTN connectivity, including ISP provisioning, number porting, and circuit management.
• Perform root cause analysis and proactively identify system deficiencies or trends toward failure, recommending improvements for performance and reliability.
• Support ongoing voice modernization initiatives, ensuring high availability, scalability, and seamless integration across platforms and endpoints.
• Apply scripting (Power Shell and/or Python) to automate configuration, reporting, and operational tasks.
• Collaborate with other engineering teams, product owners, and service managers to ensure effective delivery and support of unified communications services.
• Contribute to Agile ceremonies and backlog refinement, continuously improving delivery practices and team efficiency.
• Mentor junior engineers and provide technical guidance, fostering collaboration and knowledge sharing within the voice engineering team.

• Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent work experience).
• 5+ years of experience in enterprise telephony, VoIP, or unified communications engineering
  .
• Hands‑on experience with Microsoft Teams Voice deployment and administration.
• Experience with Five9 or other CCaaS platforms such as NICE, Genesys, or Cisco (Five9 preferred).
• Strong understanding of TDM, IP‑PBX, and VM/UM integration.
• Knowledge of PRI, SIP (station and trunking), H.323, VOIP, analog, and digital telephony systems.
• Experience designing, administering, and troubleshooting dial plans, call flows, and vectors.
• Familiarity with QoS/COS, traffic shaping, packet analysis, and troubleshooting IP voice performance.
• Proficiency with Power Shell and/or Python scripting for automation and system management.
• Proven ability to work collaboratively across business and IT teams to understand not just how, but why and when voice services best support business goals.

• Experience migrating legacy telephony systems to Microsoft Teams Voice in a large, complex enterprise.
• Strong knowledge of networking fundamentals, SIP trunking, and ISP coordination.
• Understanding of cybersecurity principles related to voice systems.
• Familiarity with ITSM/ITIL practices and Agile methodologies (Scrum experience preferred).
• Experience with IVR, ACD, call recording, CTI, and CRM integrations.
• Excellent documentation and communication skills for both technical and non‑technical audiences.
• Ability to mentor peers and contribute to a culture of continuous improvement.

At our client, you’ll contribute to a growing enterprise modernization effort that transforms how the organization communicates internally and with their customers. You’ll work with a talented, collaborative IT team using modern platforms and tools to deliver real business impact.