VoIP Engineer

Clifton Park, NY

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Job Description

Let’s Work Together

VoIP Engineer

This position is based in Albany, NY

Life at nfrastructure

At nfrastructure, we understand that our success results from our diverse workforce. In every nfrastructure office, you will find challenging projects and smart people with the potential to wow our customers. nfrastructure team members relish the freedom and support they receive to help our customers solve their most challenging problems and create the next generation of dynamic infrastructure solutions in an environment designed to foster collaboration, creativity, excitement and success.

The area: Technical Staffing

At nfrastructure, we organize and change around our customers. nfrastructure’s Managed Staffing team embodies that pursuit. We are devoted to helping our clients find relevant solutions that meet their changing needs and to consistently exceed their expectations. In every customer location, you will find challenging projects and the opportunity to improve the way that they do business. nfrastructure will continuously develop our services platform by hiring the most talented IT professionals to support our customers. So if you are proactive, motivated, organized, responsible – and able to work well in a fast-paced, team-oriented environment, Managed Staffing may be the right place for you.

The role: VoIP Engineer

As the VoIP Engineer you will be responsible for planning, and implementing VoIP consulting engagements; set goals, monitor work, and evaluate results to ensure objectives and operating requirements are met and are in line with the needs and mission of the organization. Although the primary focus of this position is to implement and support VoIP installations, you may also be tasked with general network support and build-outs including security, routing, switching, wireless, and other network related duties.


  • Document and diagram system design/architecture
  • Define and develop uniform dial plan
  • Recommend administrative applications
  • Trunking - ISDN, QSIG, SIP
  • Development of business continuity and disaster recovery plans
  • Hardware installation
  • Equipment configuration
  • Ongoing technical support
  • Troubleshooting
  • On-site off hours support


  • Minimum of BS in Computer Science or Data Networking from accredited College or University


Avaya Communications

  • Minimum of 2 years’ experience programming, monitoring and trouble-shooting CM 1.X and related Avaya G3r hardware and CM 5.2 and related S8800 hardware in a networked PBX environment compromised of over 50,000 stations
  • Working knowledge of Avaya UDP tables and intermachine call routing
  • Design and test Unified Communication Services in Avaya Aura
  • Ability to create SIP trunks between Avaya S8800 and Cisco SME environments
  • Ability to migrate legacy Avaya PBX routing into Cisco UCM SME environment


Cisco Unified Communications

  • Minimum of 2 years’ experience with Cisco CM 8.6 operating system and related SIP hardware
  • Working knowledge of Cisco Unity, Presence and UC clients
  • Hands on experience programming, monitoring and trouble-shooting Cisco SME
  • Ability to create SIP trunks between Cisco Call Manager and SME environments
  • Familiarity with Cisco HCSLE platform and associated hardware
  • Familiarity with Cisco CUCDM programming interface
  • Familiarity with Cisco Emergency Responder
  • Working knowledge of Cisco RTMT analyzer
  • Design and test SIP integrations between: Cisco UCM, Avaya Aura, Avaya CM, Cisco Jabber
  • Experience with Cisco 3845/3945 trunk gateways and PRI facilities
  • Experience with Cisco VG202 and VG224 analog gateways
  • Experience with Cisco Unified Border Elements


Additional telephony and networking skills

  • Experience with Wire Shark or other related packet analyzers
  • Capacity planning for SIP and PRI trunking facilities
  • Familiarity with E-911 concepts, terminology and configuration
  • Strong analytical trouble-shooting skills for call path issues
  • Experience with Acme Packet Session Border Controllers
  • Working knowledge of the TCP/IP protocol and IP subnet hierarchy
  • Working knowledge of SIP protocol


About nfrastructure:

nfrastructure helps large enterprises design, build and operate mission-critical technology infrastructure. Combining proven methods and tools, world-class engineering talent, on-site technical service in every major North American market and tightly integrated low cost remote support, nfrastructure collaborates with customers to deliver sustainable disruptive value. With industry practices in public sector, financial services, retail, healthcare, technology, communications, public safety and energy, nfrastructure works with leading technology hardware and software vendors to provide comprehensive data center, network, security, unified communications, end-point, structured cabling, staffing and outsourcing solutions.

More information about nfrastructure can be found at www.nfrastructure.com

Apply for this job or another online today at www.nfrastructure.com/careers nfrastructure is proud to be an equal opportunity employer; women and minorities are encouraged to apply for positions.