Twilio Integration
Specialist
I help SaaS companies, marketplaces, and ops teams build reliable communications with Twilio SMS, Voice, WhatsApp, Verify (OTP), Messaging Services, Conversations, webhooks, and A2P 10DLC compliance.
Interactive demo walkthrough — SMS alerts, Verify OTP, and webhook status events. No account required.
Testimonials
What our client are saying about us
We've been working with Kavya for the last 4 years, primarily on payment automation and Twilio communications for our freight platform — building out multi-provider payment routing alongside SMS alerts, driver notifications, and Verify OTP so shipments stay coordinated when a gateway or carrier has issues.
What actually got our attention, even before we hired him, was how much he helped without asking for anything in return. Early on, when Stripe pushed API changes, he flagged the impact on our integration before we'd even asked him to look at it, and walked us through the fix. He never pushed us to hire him. He just focused on helping.
That hasn't changed since. At one point our PayPal webhook handling would have broken under high transaction volume, and he caught it and had it patched before it caused any downstream issues for us. On the Twilio side he tightened status callbacks so failed SMS alerts didn't silently drop. He takes ownership without being told to, communicates clearly, and thinks a step beyond whatever task is in front of him.
We're still working with him today. If you're looking for a partner rather than a contractor, someone who handles payments and Twilio carefully and engineers things properly, Kavya is who I'd point you to.
Sunil G
Director, SG Freight Private Limited
Thanks and I appreciate how reliable you are. I've worked with so many & you have been the best experience time and time again.
Jordan Gill
Founder, Systems Saved Me
Kavya is not only technically skilled but also a great communicator and highly professional. I look forward to new collaborations with him and highly recommend his services to others!
Wayaz Mirza
Founder, Homework LLC
Kavya gave great advice and suggestions for how to build a successful Saas product. He's very kind and helpful; you can tell he loves what he does. I'll definitely be seeking his expertise again!
Nicole Larson
Founder, Asset Assign
Very fast and professional work. I had that problem for couple of days, but Kavya Gaur fixed it in matters of hours.
Hristo Hristov
Client
Kavya is great to work with and delivers with high quality
Konica Miolta
Client
Responsive and competent
Mark Katchen
Founder, The Phylmar Group
Trusted by teams
Some of the companies I have worked with
From freight ops platforms to SaaS notification stacks — partners who rely on me for Twilio SMS, Verify, Voice, WhatsApp, and production webhook infrastructure. 40+ Twilio projects in total.
SG FREIGHT PVT LTD
Featured · SMS alerts · Verify · Ops notifications
Homework LLC
OTP · Booking reminders
1 to 100
Marketplace messaging
Flipper Log
Status callbacks · Webhooks
Asset Assign
Transactional SMS
Wishara
Verify · Onboarding
Supertek Dies and Tools
B2B alerts
Systems Saved Me
Communications infrastructure
Fancoore
WhatsApp · Conversations
Insemoo
Verify · Notifications
At Your Service Psychiatry
Healthcare messaging
Programming Journeys
OTP · Alerts
Little Spark
Parent notifications
Drawerrr
Marketplace messaging
Get Lean
SMS · Webhooks
Real results. Real data.
Every Twilio integration I build — SMS, Voice, WhatsApp, or Verify — is measured by delivery rate, missed alerts prevented, and engineering time saved.
SG Freight Pvt Ltd
Built SG Freight's Twilio communications layer for their multi-vendor freight platform: shipment status SMS to shippers and drivers, Verify OTP for vendor portal access, and status-callback handling so failed messages retry or escalate. Alerts fire from the same events that move freight money and cargo — the platform has processed $3.7M+ in revenue (peak $400K/month) across 120+ vendors. I've continued as their ongoing consultant for 4 years as volume and corridors grow.
- •Transactional SMS for pickup, in-transit, and delivery milestones across US, Mexico, Canada, and LATAM
- •Twilio Verify for vendor and driver portal login — no DIY OTP table
- •Idempotent status callbacks with retry + ops escalation on undelivered alerts
- •Messaging Service + A2P registration path for compliant US traffic
B2B SaaS Platform
Inherited a fragile DIY OTP + SMS stack with ~12% failed logins and duplicate sends under retries. Rebuilt on Twilio Verify and Messaging Services with idempotent webhooks and clear delivery observability.
- •Migrated custom OTP codes to Twilio Verify with rate limits
- •Deduplicated status callbacks that were double-firing alerts
- •Cut auth-related support tickets by ~70%
- •Added quiet-hours and opt-out handling for transactional SMS
// the_pattern
Messaging works on day one. Then production gets real.
SMS goes out — but delivery receipts, retries, OTP abuse, carrier filtering, and compliance quietly break. Missed alerts compound. Here's what the data shows:
Silent failures — SMS marked sent but never delivered
Impact: Missed ops alertsOTP friction — DIY codes expire or get replayed
Impact: Login failure ~12%Webhook gaps — status callbacks drift from your DB
Impact: Data inconsistencyCarrier filtering — unregistered A2P traffic blocked
Impact: US delivery dropsDuplicate sends — retries fire the same alert twice
Impact: User trust riskManual fixes — your team is patching Twilio in production
Impact: Engineering time waste// process
How I Build Production-Ready Twilio Systems
A methodical approach to communications architecture — designed for SaaS and ops platforms that scale on Twilio SMS, Voice, WhatsApp, and Verify.
Communications Architecture First
Map channels (SMS, Voice, WhatsApp), Verify vs custom OTP, Messaging Services, and compliance — before writing code.
Webhooks & Delivery Sync
Secure, idempotent status-callback handlers that sync Twilio message state into your database. No missed or double events.
Production Alignment
Test and live stay consistent. Edge cases — carrier blocks, Verify rate limits, undelivered alerts — handled before they hit users.
Twilio integration components
Building blocks I use to deliver reliable communications: SMS, Voice, WhatsApp, Verify, webhooks, and compliance.
Messaging Services
Send surfaces with sender pools, sticky sender, and compliance-ready US traffic.
Webhook Pipeline
Idempotent, retried, and observable status-callback handling for every message.
Verify OTP
Twilio Verify for login and 2FA — rate limits, channels, and abuse controls built in.
Ops Alerts
Transactional SMS/Voice for shipments, bookings, incidents, and SLA breaches.
WhatsApp & Conversations
Template messages and two-way threads that stay in sync with your product.
Compliance Path
A2P 10DLC, brand/campaign registration, and WhatsApp Business readiness.
Questions I'll ask about your Twilio setup
So we can quickly identify where to focus — whether you're on SMS, Verify, Voice, WhatsApp, or all of them.
Are you sending from a Messaging Service?
Raw From numbers miss sticky sender, geo permissions, and compliance tooling Messaging Services provide.
How do you handle undelivered messages?
Status callbacks, error codes, and escalation paths are usually where ops alerts silently fail.
DIY OTP or Twilio Verify?
Verify handles rate limits, channels, and abuse — DIY tables often become the login leak.
What's your webhook and idempotency strategy?
Twilio retries status callbacks. Without idempotency you double-send alerts or miss updates.
Is US A2P 10DLC registered?
Unregistered traffic gets filtered. Brand + campaign registration is required for scale.
Do you need WhatsApp, Voice, or both?
Ops teams often need SMS for reach, Voice for critical escalations, and WhatsApp for two-way support.
About me
Hi, I am Kavya & I got into Twilio by accident.
Most of my clients were building SaaS products and ops platforms, and sooner or later we'd hit the same challenge—communications. What looked like a simple "send an SMS" almost always turned into Messaging Services, Verify OTP, status callbacks, A2P compliance, and edge cases under load.
I genuinely enjoyed solving those problems, so I kept going deeper. Today, I focus on helping businesses build Twilio systems that are reliable from day one — SMS, Voice, WhatsApp, Verify, or custom notification workflows.
Let's fix your Twilio integration.
Book a 30-minute consultation with Kavya. Share your current SMS, Verify, Voice, or WhatsApp setup — and get a clear technical assessment.
Book a Twilio Integration Consultation