Software Engineer
Junior Technical Support Engineer focused on troubleshooting SIP, VoIP, and T.38 Fax over IP issues. Requires solid networking knowledge, TCP/IP fundamentals, and Linux environment experience, with on‑the‑job training for fax and FoIP specifics.
T38Fax is seeking a talented Technical Support Engineer with experience troubleshooting SIP / VoIP / FoIP issues in a customer-facing role. We're excited to be scaling our customer support team to keep up with the rapid growth of our popular T.38 Fax Over IP (FoIP) service. In this junior-level role we don't require you to know much about T.38 FoIP or even fax at the outset -- just bring your networking and/or SIP protocol knowledge, and we'll teach you fax and FoIP.
First, a Word About Fax
Fans of John Oliver’s “How Is This Still A Thing” segments might be amused to learn that fax remains deeply entrenched in the way many companies transact their daily business. Indeed, it seems fax is still very much a thing! In its annual report on the fax industry, Business Research Insights reports that the global fax market size was 2.36 billion in 2023 and is projected to reach 4.25 billion by 2032 at a compound annual growth rate (CAGR) of almost 7%. It’s especially surprising, then, that most modern VoIP/SIP and cloud-based phone companies neither support fax over SIP nor understand how they might do so (until we show them how easy it is). Our fax-approved SIP trunks are ready to go today and fill a vital need in a growing and underserved industry that shows no signs of slowing down for many years to come.
About You
As a Technical Support Engineer you will be responsible for diagnosing and resolving customer issues related to SIP trunking, T.38 fax transmissions, call quality, and network configurations. You will work closely with customers, internal teams, and vendors to ensure seamless communication experiences. You are a proud, card-carrying tech-geek with a superhero’s penchant for helping others. You breathe all things engineering, innovation, and data. Logic is your friend, and you use it generously. Equipped with an entrepreneurial attitude, you are relentlessly energetic and excited by new challenges. If you aren’t multi-tasking, it means you are under-challenged. You don’t just capture packets, you use science (not superstition) to tame them.
Your Mission
This is absolutely not an IT help-desk role. We call our support team 'engineers' because of the highly technical nature of troubleshooting SIP and T.38 at industrial scale. You will:
Posted June 23, 2026