Secure Payment Gateway & Checkout Engineering for Pakistani Digital Platforms
Engineer frictionless, PCI-compliant payment flows that maximize transaction authorization rates and eliminate billing drop-offs. Mr Umer Malik builds custom payment gateways, Stripe Elements integrations, and ACH billing pipelines for Pakistani e-commerce and SaaS platforms under bilateral mutual NDA under Pakistani Law.
Core Capabilities & Production Deliverables
Direct architectural execution by senior engineer Mr Umer Malik with zero agency dilution.
Stripe Elements & Custom Checkout UI
High-converting embedded payment forms utilizing Stripe Elements and Apple Pay / Google Pay with zero checkout redirection.
ACH Direct Debit & Plaid Bank Verification
Lower transaction fees for high-ticket Pakistani transactions via Plaid instant bank account verification and Stripe ACH direct debits.
Recurring Subscription & Usage-Based Billing
Prorated subscription tiers, usage-based metered billing, automated dunning email sequences, and failed payment retries via Stripe Billing.
PCI-DSS Compliance & Tokenization
Zero plain-text credit card storage; end-to-end tokenization ensuring your server never touches sensitive payment cardholder data.
3D Secure 2.0 & Radar Fraud Prevention
Configuring Stripe Radar machine learning fraud rules and 3DS2 challenge flows to reduce chargebacks without adding customer friction.
Automated Multi-State Sales Tax Calculation
Real-time sales tax (FBR) calculation at checkout via Stripe Tax or TaxJar based on dynamic customer shipping addresses.
Why Pakistani Scale-Ups Choose Direct Senior Engineering
Local software houses deliver fragile code and cycle junior interns through your project. Here is the direct senior engineering alternative.
PKT (UTC+5) Instant Daytime Collaboration
Direct, real-time collaboration with senior software architect Mr Umer Malik during standard business hours via Slack, WhatsApp, or phone.
Predictable Milestone Pricing in PKR & Legal NDA
Deliverables quoted in transparent Pakistani Rupees (PKR) with zero open-ended billing, backed by SECP-compliant bilateral mutual NDA and 100% IP assignment.
Sub-30ms Local Edge Caching & Optimization
Systems optimized specifically for Pakistani broadband and mobile data networks (PTCL, Nayatel, StormFiber, Jazz 4G), eliminating lag.
Direct Senior Principal Partnership
Work directly with the lead engineer writing your production architecture with zero account managers or communication lag.
Phased Delivery Roadmap & How This Project Runs
Structured from initial discovery call to production deployment and 100% intellectual property transfer.
Phase 01: Architecture Scoping & Fixed PKR Milestone Scoping
30-minute scoping call to map technical requirements, database architecture, and agree on fixed milestone pricing in PKR with zero hidden fees.
Phase 02: Private Git Repository & Staging Environment
GitHub repository initialized under your organization, signed bilateral mutual NDA under Pakistani Law, and private staging environment deployed.
Phase 03: Fast Iteration Sprints & Weekly Staging Demos
Daily code commits and weekly staging demo links where you test functional features with real data throughout the sprint.
Phase 04: Production Launch, Load Testing & 100% IP Handover
Zero-downtime cutover, sub-30ms network speed tuning, FBR / payment gateway certification, and 100% source handover + 30-day warranty.
Frequently Asked Questions
Review the standard engagement guidelines and operational parameters.
How do you ensure our website meets PCI-DSS compliance standards? ▼
Can you integrate ACH payments to lower our transaction processing fees? ▼
How do you handle dropped webhooks and network timeouts? ▼
Can you migrate our existing customer payment tokens between processors? ▼
Who owns the intellectual property and code repository? ▼
What post-launch warranty and support is included? ▼
Great dreams deserve craftsmanship, not compromises. Let’s build yours.
REGIONAL OPERATIONS / STATES WE SERVE
© 2026 UMER XPERT. SERVING PAKISTAN — KARACHI ✦ LAHORE ✦ ISLAMABAD. ALL RIGHTS RESERVED.