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Integrations and APIs · 5 technologies

Communication — messages that arrive, on the channel the customer uses.

Customers in India live on WhatsApp; customers elsewhere want email and SMS. I integrate the WhatsApp Business API, SMS and voice through Twilio, transactional email through SendGrid or Mailgun, and push through Firebase, with templates, opt-outs and delivery tracking.

Technologies
WhatsApp Business API · Twilio · SendGrid · Mailgun · Firebase
Support
Build · fix and maintain · upgrade and migrate · audit and advise
Typical
Order updates, reminders and OTPs on WhatsApp and SMS
Pricing
Fixed price, or hourly from $10 by stack
Team
Me, plus a vetted team of 50+ for larger builds, 90% with 10+ years' experience
Start
Usually within one working day of agreeing the scope

01 — What I do with Communication

build, fix, upgrade, audit

Build

01

New Communication work from requirement to production: order updates, reminders and OTPs on WhatsApp and SMS; Transactional email that reaches the inbox, with tracking; Push notifications for mobile apps with scheduling.

Fix and maintain

02

The usual problems in existing Communication systems: emails landing in spam, OTPs arriving late, WhatsApp templates rejected, and no record of what was sent.

Upgrade and migrate

03

Unofficial WhatsApp hacks to the official API, shared SMTP to authenticated transactional email, polling to push.

Audit and advise

04

A code, security, performance and SEO audit of your Communication system, with a written plan you can act on with or without me.

02 — Technologies

what each one is for

WhatsApp Business API

Official templates, two-way chat, bots and handoff.

Twilio

SMS, voice and verification worldwide.

SendGrid

Transactional and marketing email delivery.

Mailgun

Developer-friendly email delivery and tracking.

Firebase

Push notifications and auth for mobile apps.

03 — Typical projects

what people usually ask for

Communication work
that actually gets ordered.

Three shapes most Communication engagements take. Yours may be a fourth; describe it and I will tell you honestly whether it fits.

  • Order updates, reminders and OTPs on WhatsApp and SMS
  • Transactional email that reaches the inbox, with tracking
  • Push notifications for mobile apps with scheduling

04 — Questions

about Communication work

Can you set up the official WhatsApp API?

Yes, including the Meta business verification, templates, and a bot that hands over to a human when needed.

Why do our emails go to spam?

Usually missing SPF, DKIM and DMARC, or sending from a shared server. Authenticated sending through a proper provider fixes it.

How is Communication work priced?

A fixed price for a defined scope, or hourly from $10 depending on the stack, always with a written estimate before any work starts.

How do we start?

Send a short description of what exists and what you need. You get a reply within one working day with questions, then a scope or an estimate.

06 — Start

describe the Communication project

Got a Communication project?

Tell me what exists, what you need, and the deadline if there is one. I reply within one working day with questions, then a scope or an estimate.

Ahmedabad, India · IST (UTC+5:30) · --:-- IST · Mon–Fri 09:00–18:00 IST · US & EU overlap daily

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