Staff Messaging (SMS/MMS) Engineer
ABOUT TELEGENT Telegent is a next-generation mobile communications platform redefining how businesses and brands connect people through wireless technology. We provide a software-first, API-driven mobile Platform-as-a-Service (mPaaS) that combines intelligent voice, messaging, data, and unified communications into a single, flexible solution. At Telegent, we move fast, think creatively, and build technology that makes mobile communications simpler, more powerful, and more adaptive for the future. ABOUT THE ROLE We’re looking for a Staff Messaging Engineer (SMS/MMS) to own the architecture and reliability of our messaging infrastructure at scale. This is a high-impact individual contributor role: you will shape how SMS and MMS traffic flows across our platform, drive carrier integrations, and set the technical direction for messaging across a distributed team of engineers. This role owns message routing, throughput, delivery reporting, and compliance across U.S. and international networks. WHAT YOU’LL DO Design, deploy, and operate SMS and MMS routing, delivery, and reporting systems across multiple carriers and messaging hubs Evaluate, Configure and maintain SMPP connections for SMS and MM7 interfaces for MMS, including routing, throttling, retries, and failover Support 10DLC, toll-free, short code, and international messaging workflows Build and maintain APIs for outbound and inbound messages, delivery receipts (DLRs), and webhooks Monitor throughput, delivery success, carrier response codes, and system performance Investigate and resolve deliverability issues, including blocking, filtering, and spam classification Enforce compliance with CTIA guidelines, opt-in/opt-out rules, and 10DLC requirements Partner with SIP, network, and customer success teams to support enterprise messaging customers Maintain technical documentation, routing logic, carrier mappings, and escalation procedures WHAT WE'RE LOOKING FOR 5+ years of experience building or operating SMS / MMS platforms in telecom, MNO, MVNO, or CPaaS environment Hands-on experience with SMSC/MMSC platforms using SMPP for SMS and MM7 for MMS Experience implementing and deploying Azure cloud-base platforms Experience with carrier-grade messaging systems such as Jasmin, Melrose Labs, or similar routing platforms Designing, implementing and maintain high-availability, multi-regional queue-based Kubernetes cloud-based message traffic routing Strong understanding of SMPP, MM7, delivery receipts (DLRs), and carrier error codes Experience integrating with U.S. mobile carrier or global messaging aggregators Ability to troubleshoot and resolve issues in live production messaging systems Experience turning SMPP bind modes, throughput limits, and routing priorities Experience with MMS media hosting, delivery, and content handling experience Familiarity with AI development workflows and tools is strongly preferred TECHNOLOGIES & TOOLS SMS/ MMS, SMPP, Messaging Gateways, Carrier APIs, mPaaS, FMC / MFC, Wireshark, Linux, REST / HTTP APIs BENEFITS Competitive compensation package, including performance-based bonus potential and comprehensive health benefits 100% employer-paid medical, dental, and vision Unlimited PTO Equipment provided Apply To This Job