How we reduced OTP delivery latency by 60% across all operators
We rebuilt our operator routing layer from the ground up. Here's how we cut median OTP delivery from 1.2 seconds to under 480 milliseconds across Jazz, Zong, Telenor and Ufone.
Engineering deep-dives, product announcements, and stories from the team building Pakistan's enterprise messaging infrastructure.
We rebuilt our operator routing layer from the ground up. Here's how we cut median OTP delivery from 1.2 seconds to under 480 milliseconds across Jazz, Zong, Telenor and Ufone.
Vertex is now a Meta Verified BSP for WhatsApp Business API. Pakistani businesses can send templated notifications, engage in session messaging, and deliver rich media — all from the Vertex platform.
Navigating Pakistan's DND regulations at scale is complex. We built a compliance engine that checks every message against PTA DND registries, preference lists, and time-of-day rules.
A behind-the-scenes look at the infrastructure, team and decisions that got us to one billion messages routed. What worked, what broke, and what we'd do differently.
Consistent, idempotent, and observable. We share the principles that guide every endpoint we build, from request IDs to signed webhooks to rate limiting.
Not every workload belongs on SMPP. We compare throughput, latency, developer experience and operational complexity to help you choose the right channel.
Track every message from send to delivered with operator-level breakdowns, latency histograms, and cohort-based funnel analysis. Built for reconcilers and engineers alike.
From encryption at rest to signed webhooks to SOC2-aligned access controls — a deep dive into the security measures that protect every message on Vertex.
A technical deep dive into the architecture, optimizations and load testing that allowed our SMPP gateway to handle 50,000 transactions per second during peak hours.
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