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Radio over IP-VoIP Presales Engineer


Location: Chicago, IL or Remote
Start: Immediate
Duration: Full-time employee, long term
US Citizen or Green Card required

Instant Connect is an IP-based tactical communications platform providing comprehensive services including push-to-talk (PTT), phone, text, and data. Designed for today’s fast-moving workforces and tactical teams, it helps ensure seamless connectivity across various networks and devices such as mobile (cellular), radio, IP, and telephony systems.  Excelling in both routine and challenging environments, the platform delivers reliable communication—voice, text, and data—when it matters most.

Instant Connect Software LLC is affiliated with the Dillon Kane Group (, a leader in innovative technology solutions based in Chicago that has been serving diverse industries since 2002.



We are looking for an experienced Presales Engineer to join our high-performing team.  This person may work remotely with the rest of the Sales team.


Job Requirements

  • 10+ Years experience in Radio over IP and Voice over IP pre-sales engineering experience.
  • Strong background (CCNP + level) in routing, switching, QoS, unicast, multicast, and IP telephony
  • Experience in drafting statements of work, defining technical requirements, documenting deliverables
  • Strong background in customer-facing sales and engineering presentations and demonstrations.
  • 10+ Years experience in implementing RoIP and VoIP solutions to include:
  • Determining pinouts for radio interface cables
  • Radio gateway configuration experience with Cisco Routers, CisTech, Vocality (DTech), and JPS.
  • Experience in troubleshooting unicast and multicast networks
  • Experience integrating solutions with IP PBX’s to include Cisco Call Manager, Asterisk, Avaya, and Mytel systems.
  • Strong understanding and experience with US DoD Tactical Networks
  • Creating as-built documentation
  • Develop test plans for site acceptance
  • Provide post-sales technical support as needed
  • Create/contribute to product manuals
  • Contribute to testing of QA/QC of Beta products
  • Deliver product training to partners and end customers
  • Experience managing and motivating engineering teams
  • Familiarity with the US DoD JITC Certification process
  • Must be a US Citizen
  • Must hold active US Secret Clearance


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