Category: Custom Software EngineeringAdd-on / TaskQuick Add-on

Payment Gateway & Checkout Integration

Integrating Stripe, PayPal, LemonSqueezy, PayFast, 1Link, JazzCash, or Easypaisa with automated webhooks and receipt generation.

Investment Tier:

$400 – $1,200

2 - 4 Days Turnaround

Related Engineering Vertical

Custom Software Engineering

Focused feature sprints, API integrations, custom bots, and fast engineering turnaround.

Explore Full Service

Commercial Rate Matrix & Value Benchmark

Transparent fixed rates with milestone escrow protection and direct founding engineer execution

Foreign Client Rate (USD)Selected

$400 – $1,200

Agency Average:$1,500 - $3,500

Direct Senior Architect Pricing (70%+ Savings)

Domestic Alternative (PKR)

PKR 35,000 – 90,000

Billing Model: Per Task

Guaranteed 2 - 4 Days delivery

Delivery SLA2 - 4 Days

IP Rights100% Client Owned

Payment SchedulePer Task

Complete Scope & Included Deliverables (4)

Everything included in this package without hidden licensing or surprise billings

Stripe / PayPal / Local Gateway API setupEngineered to production standards with comprehensive testing and documentation.

Secure webhook listener & database order updatesEngineered to production standards with comprehensive testing and documentation.

Automated email receipt & invoice generationEngineered to production standards with comprehensive testing and documentation.

Sandbox testing & Live credentials handoverEngineered to production standards with comprehensive testing and documentation.

Target Fit & Best Suited For

E-Commerce, Subscriptions, Digital Product Sellers

Custom tailored architecture designed to scale seamlessly with team growth and enterprise workflows.

Architectural Advantage

Strategic Engineering Rationale

High frequency need with instant client validation.

Standard 3-Stage Milestone Flow

Phase 1 · 30%

Discovery & Architecture Design

Technical spec, UI wireframes, database schemas, and milestone schedule signoff.

Phase 2 · 40%

Core Build & CI/CD Staging

Feature development, API integrations, automated testing, and preview link access.

Phase 3 · 30%

Production Launch & SLA

Production deployment, full source code transfer, IP handover, and 30-day warranty.

Direct Scope Proposal

Request Proposal for This Package

Submit your details to receive an itemized architecture breakdown within 24 hours.

100% IP Handover & Non-Disclosure Agreement (NDA)

Milestone Protected Escrow & Bank Transfers

Free 30-Day Post-Launch SLA Warranty

Other Custom Software Engineering PackagesView Service →

Performance Speed & Core Web Vitals Polish$300 - $800 · 2 - 3 Days

Urgent Bug Fixing & Code Refactoring$250 - $1,000 · 24 - 48 Hours

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