You will get WhatsApp Business API Integration & Automation
Project details
I build WhatsApp Business API integrations on the
official Meta platform — automated message flows,
AI virtual agents, and full inbox management systems.
PT NTJ Application Studio holds verified Meta Tech
Provider status directly from Meta. This means every
integration I deliver is built on the official
WhatsApp Business Platform — not through a BSP
reseller or third-party workaround. Your clients see
"This business uses a secure service from Meta" —
the official trust signal.
What I've built in production:
· AI virtual agent handling high inbound message
volumes 24/7 with consistent response quality
· Division-based routing to correct departments
· Human handoff trigger for complex cases
· Meta-approved message templates (Utility & Marketing)
· Full inbox dashboard for team management
Stack: Laravel, WhatsApp Business API, Go, Vue.js,
PostgreSQL/MySQL, Docker.
Timezone: UTC+7 (Bandung, Indonesia). Available for
AU, NZ, and SG clients with minimal overlap friction.
If you need a WhatsApp integration built on the
official platform — send me your requirements.
official Meta platform — automated message flows,
AI virtual agents, and full inbox management systems.
PT NTJ Application Studio holds verified Meta Tech
Provider status directly from Meta. This means every
integration I deliver is built on the official
WhatsApp Business Platform — not through a BSP
reseller or third-party workaround. Your clients see
"This business uses a secure service from Meta" —
the official trust signal.
What I've built in production:
· AI virtual agent handling high inbound message
volumes 24/7 with consistent response quality
· Division-based routing to correct departments
· Human handoff trigger for complex cases
· Meta-approved message templates (Utility & Marketing)
· Full inbox dashboard for team management
Stack: Laravel, WhatsApp Business API, Go, Vue.js,
PostgreSQL/MySQL, Docker.
Timezone: UTC+7 (Bandung, Indonesia). Available for
AU, NZ, and SG clients with minimal overlap friction.
If you need a WhatsApp integration built on the
official platform — send me your requirements.
Programming Languages
PHP, JavaScript, GoCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$399
|
Standard
$799
|
Advanced
$1,499
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Template Creation & Meta Approval
+$149Frequently asked questions
About Nathanael
Laravel & Go Developer | SaaS APIs & WhatsApp Business Platform
Bandung, Indonesia - 6:33 pm local time
to handle real load — not demo-day code.
8 production systems shipped. 30,000+ active users. Clients
across tourism, retail, government, and F&B verticals.
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WHAT I BUILD
→ REST and JSON APIs (Laravel, Go)
→ SaaS platforms with multi-tenant architecture
→ WhatsApp Business API integrations (Meta Tech Provider —
verified, direct — not a reseller)
→ Full-stack web apps (Laravel + Vue.js)
→ Mobile apps (Flutter)
→ Payment gateway integrations (DOKU, Midtrans, Xendit)
→ Docker-based deployments and server configuration
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WHY CLIENTS CHOOSE ME OVER OTHER OFFSHORE DEVELOPERS
1. I hold Meta Business Platform Tech Provider status
directly — verified by Meta. Most developers claiming
WhatsApp integration work are BSP resellers. I'm not.
This matters when your integration needs to be
production-grade and policy-compliant.
2. Accounting degree + engineering background. I understand
the business logic behind what I build — invoicing flows,
financial reporting, inventory reconciliation. I ask the
right questions before writing a single line of code.
3. I've shipped systems that stayed live. The venue
ticketing platform I built handles thousands of
concurrent transactions. The POS system runs across
multiple locations with real-time sync. I build for
production, not for the demo.
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TECH STACK
Backend : Laravel (PHP), Go (Golang), Python (FastAPI)
Frontend : Vue.js, Inertia.js
Mobile : Flutter, React Native, PWA
Database : PostgreSQL, MySQL, Redis
DevOps : Docker, FrankenPHP, Linux server management
APIs : WhatsApp Business Platform, REST, Webhooks
Payments : DOKU SNAP, Midtrans
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TIMEZONE & AVAILABILITY
Based in Bandung, Indonesia (UTC+7).
Available for AU, NZ, and SG clients — minimal time zone
friction for async collaboration.
Less than 30 hrs/week available (selective on projects).
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If you need a Laravel or Go backend built correctly the
first time — with clean architecture, proper documentation,
and a developer who understands your business goals —
send me a message.
Steps for completing your project
After purchasing the project, send requirements so Nathanael can start the project.
Delivery time starts when Nathanael receives requirements from you.
Nathanael works on your project following the steps below.
Revisions may occur after the delivery date.
WhatsApp Business Account verification and API access setup
I confirm your account is correctly connected to the Business Platform before any development starts.
Workflow design and template creation
I map your automation flows and submit required message templates to Meta for approval.