NAVEEN VERMA

Q: Do you provide ongoing support after deployment?

Yes. I offer three support tiers: (1) Basic - Email support, 48-hour response time, (2) Standard - Priority email + WhatsApp, 24-hour response, (3) Premium - 24/7 availability, dedicated Slack channel, guaranteed 4-hour response for critical issues. All tiers include monitoring dashboards and alerting.

Systems Architect & API Integration Expert

Beyond Plugins: Building Hardened, Production-Grade Infrastructure for WordPress.

✅ PCI DSS Level 1

🔒 ISO 27001

⚡ 99.9% Uptime

Most developers simply "connect" apps. I architect resilient bridges. My methodology ensures your data survives server timeouts, inconsistent payloads, and high-volume traffic.

$500M+

Transactions Processed

200+

API Integrations

15+

Payment Gateways

0.01%

Error Rate

Schedule Free Consultation View Case Studies

Trusted by leading enterprises

ZAI

NETWORK

DBS

XENDIT

CHECKBOOK

Why "Hardened" API Integration Matters

Most developers simply "connect" apps. I architect resilient bridges. My methodology ensures your data survives server timeouts, inconsistent payloads, and high-volume traffic.

The 3 Pillars

🔄

Idempotency

Preventing duplicate data during retries by implementing unique transaction identifiers and state tracking systems that guarantee one-time processing regardless of network failures.

idempotencyKey: crypto.randomUUID()

✅

Schema Validation

Ensuring every incoming byte matches your database requirements through strict JSON schema validation, type coercion, and automated sanitization before any data touches your systems.

schema.validateAsync(data)

🛡️

Error Resilience

Implementing exponential backoff, circuit breakers, and persistent logging with dead-letter queues to handle failures gracefully and maintain system stability under adverse conditions.

exponentialBackoff(retryCount)

Proven Results

Real metrics from production systems handling millions in transactions

ZAI

Zai Payment Platform

Australian Fintech

300%

Speed Improvement

$200M+

Processed

20 days

→ 60 seconds

99.9%

Uptime

Reduced payment turnaround times from 20 days to 60 seconds by implementing hardened webhook processing with idempotent transaction handling and intelligent retry mechanisms.

"Zai's predisposition to evolve and their speed and agility is invaluable. It means we can continue to deliver technological advancements to our customers."

— Nick Bouris, Co-Founder & Director, Managed App

SHR

SHR Global Rate Calendar

Banking & DeFi

300%

Site Speed

10k+

SKUs Synced

95%

Cache Hit Rate

0.02s

Response Time

Synced high-latency Rate Calendar data with intelligent local caching layers and TTL management, improving site speed by 300% while maintaining real-time accuracy.

"The caching strategy eliminated our timeout issues completely. We can now handle 10x the traffic with zero performance degradation."

— CTO, Financial Services Company

TWL

TWL Multi-Brand Platform

E-commerce Architecture

Brands Unified

50k+

Products

Overselling

100%

Uptime

Architected multi-brand WooCommerce platform with custom physical product authentication logic, real-time stock-level locking across warehouses, and automated SKU synchronization preventing overselling across all sales channels.

Technical Challenges Solved:

• Multi-warehouse inventory synchronization
• Real-time stock locking mechanisms
• Custom product authentication workflows
• Payment gateway orchestration

Business Impact:

• Zero overselling incidents
• 40% reduction in support tickets
• Seamless multi-brand checkout
• Scalable to 10x growth

How I Work

A proven methodology that delivers production-ready integrations on time, every time

Discovery & Architecture

Deep-dive technical consultation to understand your current infrastructure, identify integration points, and architect a solution that aligns with your business goals. I analyze API documentation, review existing systems, and create a detailed technical specification.

API Analysis System Audit Technical Spec

Timeline: 2-3 days

Development & Hardening

Build the integration with idempotent processing, schema validation, and error resilience from day one. Every webhook is hardened, every API call includes retry logic, and every transaction is logged for audit trails. Code is production-ready, not a prototype.

Idempotency Webhook Hardening Error Handling Security

Timeline: 1-3 weeks (varies by complexity)

Testing & Optimization

Comprehensive testing in sandbox environments, load testing for high-volume scenarios, and optimization for performance. I test failure scenarios, network timeouts, and edge cases that break most integrations. Your system will handle real-world chaos.

Sandbox Testing Load Testing Security Audit

Timeline: 3-5 days

Deployment & Support

Smooth production deployment with zero-downtime strategies, comprehensive documentation, and ongoing support. I provide monitoring dashboards, alerting systems, and 24/7 availability for critical issues. Your integration is never "done"—it evolves with your business.

Zero-Downtime Deploy Documentation Monitoring 24/7 Support

Ongoing support available

Integration Verticals

Four specialized domains where I've built production-grade integrations

🧠

CRM & Automation

The "Brain" - Scaling Business Operations

Zoho Inventory

Automated multi-warehouse SKU synchronization with real-time stock-level locking to prevent overselling across sales channels.

Maverick CRM

Implementation of OIDC/OAuth2 Identity Server for secure, cross-platform SSO with granular permission scopes and token refresh mechanisms.

Reply.io

Standardizing inconsistent webhook payloads into a unified Base44 relational store with schema mapping and data enrichment pipelines.

Dripify

Building a hardened listener for lead-gen events with automated "Null-Check" protection and conditional workflow triggers based on data quality scores.

HubSpot

Deep-mapping custom objects from WordPress forms to sales pipelines via Private Apps with bi-directional sync and conflict resolution protocols.

💳

Banking & DeFi

The "Wallet" - High-Security Financial Data

SHR Global

Syncing high-latency Rate Calendar data with local caching layers and intelligent TTL management to improve site speed by 300%.

NOWPayments

Custom DeFi bridge for direct-to-cold-wallet USDT transfers with on-chain verification and multi-signature approval workflows.

Stripe Connect

Building a multi-vendor marketplace payout system with automated fee splitting, tax calculation, and dispute management integration.

CryptoWoo

Customizing legacy plugins to support modern stablecoin cashback loyalty loops with real-time exchange rate adjustments.

Wise (TransferWise)

Automating international contractor payouts triggered by WooCommerce order status with multi-currency reconciliation and fee optimization.

🚚

Logistics & Specialized APIs

Complex System Orchestration

RentalTec / RentMagic

Mastering the Swagger UI to build complex PrivateOrder_CreateOrder flows with inventory reservation, pricing rule application, and automated contract generation.

XD Connects

Real-time inventory and fulfillment sync for promotional product distribution with automated PO generation and shipment tracking integration.

Garden Seeds Trading

Managing large-scale SKU imports (10k+) with background processing, batch operations, and incremental updates to avoid timeout issues.

WPS API

Integrating high-performance document processing for automated invoice generation, PDF optimization, and secure cloud storage synchronization.

Midocean

Synchronizing global pricing tiers and stock availability for high-volume B2B portals with currency conversion and regional compliance checks.

🤖

AI & EdTech

The "Future" - Intelligence & Information

Midjourney API

Automating prompt-to-image generation for dynamic WordPress galleries with style consistency controls and batch processing queues.

MediRecords

Integrating Australian healthcare standards (FHIR) for secure patient data syncing with HIPAA-compliant encryption and audit logging.

View MediRecords API Services →

Alphonse

Building custom AI-driven chat interfaces within a WordPress environment with context retention and external knowledge base integration.

LearnDash Custom API

Syncing granular course progress with external HR monitoring tools for compliance tracking and automated certification issuance.

MemberPress API

Customizing the REST endpoints to allow mobile apps to authenticate via WordPress with JWT tokens and role-based access controls.

🏥

MediRecords API Integration Expert

Serving Australian Healthcare Practices

Extensive experience with MediRecords API developer platform. Specializing in FHIR-compliant healthcare API integration for WordPress, custom systems, and webhook processing. Serving medical practices across Sydney, Melbourne, Brisbane, Perth, Adelaide, and Australia-wide.

FHIR Compliance HIPAA-Ready Australia-Wide Production-Grade

View MediRecords Services Get Free Consultation

⚙️

WordPress Custom Plugin Developer

Payment Gateways • Automation • API Integration

Expert WordPress custom plugin development following WordPress strict coding standards and security protocols. Specializing in payment gateway plugins, product automation, and seamless data exchange between WordPress and third-party REST APIs including .NET platforms. 11+ years experience, 445+ 5-star reviews.

WP Standards Security Compliant 445+ Reviews 11+ Years

View Plugin Services View Fiverr Profile

Featured Projects

Live examples of high-end execution across e-commerce, healthcare, and enterprise platforms

TWL

High-end e-commerce platform for UAE client. Premium execution with custom architecture.

View Project →

Tech Stack

WooCommerce WordPress PHP

BENY

BENY.nyc

Multi-brand WooCommerce platform with custom physical product authentication logic.

View Project →

Tech Stack

WooCommerce Node.js API Integration

AKESS

Surveillance & security equipment e-commerce platform with complex product catalog.

View Project →

Tech Stack

WooCommerce WordPress PHP

HMS

Help Me Stop

Australian healthcare e-commerce platform for smoking cessation products.

View Project →

Tech Stack

WooCommerce Healthcare API PHP

INFINET

InfiNET Broadband

Australian ISP platform with NBN & OptiComm service integration.

View Project →

Tech Stack

WordPress API Integration PHP

Next Steps UK

Healthcare support services platform with complex content management.

View Project →

Tech Stack

WordPress CMS PHP

Custom Payment Gateway Integrations

Building hardened WordPress payment plugins and API integrations for global payment processors

From Australian fintech to Middle Eastern banking, Southeast Asian marketplaces to logistics platforms—I've architected custom payment solutions that handle millions in transactions with idempotent processing, webhook hardening, and PCI-compliant security.

ZAI

Zai (Australia)

Custom WooCommerce plugin for Zai's API-powered payment platform. Integrated PayTo, BPAY, Direct Debit, and card payments with PCI DSS Level 1 hosted solution.

Features:

• Real-time authorization & T+2 settlements
• Multi-factor authentication
• Advanced fraud prevention
• Webhook hardening with idempotency

View Gateway →

Integration Stack

WooCommerce PHP REST API

NETWORK

Network International (UAE)

Middle East's largest payment processor integration. Built OAuth 2.0 authentication flow, TLS 1.2 encryption, and multi-currency support for 240,000+ merchants.

Features:

• OAuth 2.0 token management
• Card & account transactions
• P2P transfer capabilities
• PCI DSS compliance

View Gateway →

Integration Stack

WordPress OAuth 2.0 TLS 1.2

shurjoPay

shurjoPay (Bangladesh)

Custom WordPress plugin for Bangladesh's leading payment gateway. Integrated 36 EMI banking partners with token-based authentication and transaction verification.

Features:

• 15-minute token lifecycle
• Sandbox & production environments
• Multi-bank EMI support
• QR-based payment solutions

View Gateway →

Integration Stack

REST API PHP WordPress

XENDIT

Payex/Xendit (Malaysia)

Southeast Asian unicorn payment gateway integration. Built 0% installment plans, subscription payments, and marketplace solutions for Malaysian merchants.

Features:

• 0% Credit Card IPP (9 banks)
• Subscription payment automation
• Payment links & QR codes
• 1-2 day settlement cycles

View Gateway →

Integration Stack

WooCommerce API PHP

CHECKBOOK

Checkbook.io (USA)

Digital check payment platform integration. Built ACH payments, Real-Time Payments (RTP), virtual cards, and instant pay solutions with white-label marketplace implementation.

Features:

• ACH & RTP processing
• Virtual card issuance
• FedNow payments
• Multi-party endorsements

View Gateway →

Integration Stack

REST API Node.js Webhooks

PAYDOLLAR

PayDollar (India)

Indian payment gateway integration with 99.9% uptime. Built credit/debit card processing, tokenization, recurring payments, and advanced fraud management system.

Features:

• Visa, Mastercard, Diners, Discover
• Tokenization & recurring billing
• Fraud monitoring & chargeback reduction
• Custom payment pages

View Gateway →

Integration Stack

PHP WooCommerce API

SOLA

Sola/Cardknox (USA)

Complete payment solution integration for North American merchants. Built PayFac-as-a-Service, omnichannel solutions, and transaction optimization with fraud protection.

Features:

• Online & in-person payments
• Billing & invoicing automation
• Tap to Pay on mobile
• Multi-gateway support

View Gateway →

Integration Stack

API PCI SDK

DBS

DBS Bank (Singapore)

Singapore's leading bank API integration. Built corporate banking solutions, SME payment processing, and wealth management platform integrations with secure authentication.

Features:

• Corporate & SME banking APIs
• DBS IDEAL integration
• Multi-currency support
• Enterprise-grade security

View Gateway →

Integration Stack

Banking API OAuth REST

COMPASS

Compass (Italy)

Italian financial services integration. Built loan processing, credit card payments, and HeyLight BNPL solutions with secure payment processing for 20+ million customers.

Features:

• Loan & financing APIs
• Credit card processing
• Apple Pay integration
• Buy Now Pay Later (BNPL)

View Gateway →

Integration Stack

PHP API SDK

JAD

JAD Cash (Caribbean)

Eastern Caribbean e-money solution integration. Built mobile payment platform for St. Kitts and Nevis with cash loading, bill payments, and P2P transfers.

Features:

• Mobile wallet integration
• Cash loading & withdrawal
• Bill payment automation
• AML/CFT compliance

View Gateway →

Integration Stack

Mobile API REST PHP

SENDBLUE

Sendblue (USA)

iMessage for Business API integration. Built automated messaging workflows, FaceTime Audio calling, and CRM integrations generating $1B+ revenue for clients.

Features:

• iMessage API integration
• No A2P registration required
• Group chats & media support
• CRM workflow automation

View Gateway →

Integration Stack

API Webhooks Node.js

DELLYMAN

Dellyman (Nigeria)

Logistics technology platform API integration. Built same-day delivery tracking, rate comparison, and payment processing for 288,397+ deliveries across Africa.

Features:

• Real-time GPS tracking
• Multi-carrier rate comparison
• Payment gateway integration
• Security code verification

View Gateway →

Integration Stack

Logistics API REST PHP

BE COOL

Be Cool Couriers (Australia)

Refrigerated logistics platform integration. Built live temperature tracking, GPS precision tracking, and payment processing for Australia-wide delivery services.

Features:

• Live temperature monitoring
• GPS tracking integration
• Third-party logistics APIs
• Automated reporting systems

View Gateway →

Integration Stack

Logistics API IoT PHP

Integration Capabilities

🔐

PCI Compliance

Level 1 PCI DSS certified integrations with tokenization and secure data handling

🔄

Idempotent Processing

Webhook hardening with unique transaction IDs preventing duplicate processing

🌍

Multi-Region Support

Global payment gateways across Australia, UAE, Bangladesh, Malaysia, USA, and more

⚡

Real-Time Processing

Instant authorization, RTP support, and sub-60-second transaction verification

Technical Implementation Approach

WordPress Plugin Development

• Custom WooCommerce payment gateways
• WordPress hooks & filters integration
• Admin settings & configuration panels
• Order status management automation
• Multi-site & multi-currency support

API Integration Patterns

• OAuth 2.0 authentication flows
• RESTful API design & implementation
• Webhook endpoint hardening
• Exponential backoff retry logic
• Circuit breaker patterns

Security & Compliance

• TLS 1.2+ encryption enforcement
• PCI DSS Level 1 compliance
• Tokenization & data masking
• Fraud detection integration
• Audit logging & monitoring

Why Choose Me Over Other Developers?

The difference between a working integration and a production-grade system

Feature	Typical Developer	Naveen Verma
Idempotent Processing	❌ Often skipped	✅ Built-in from day one
Error Handling	Basic try-catch	Exponential backoff + circuit breakers
Schema Validation	Manual checks	Automated JSON schema validation
Webhook Security	Sometimes implemented	Signature verification + replay attack prevention
Monitoring & Logging	Basic logs	Comprehensive dashboards + alerting
Testing	Happy path only	Failure scenarios + load testing
Documentation	Minimal or outdated	Comprehensive + always updated
Post-Launch Support	Limited or expensive	Multiple tiers, 24/7 available
Production Readiness	"Works on my machine"	Battle-tested, production-hardened

The Real Cost of "Cheap" Integrations

$50k+

Average cost of fixing a broken integration

72hrs

Average downtime during critical failures

40%

Of integrations need major refactoring within 6 months

Invest in production-grade architecture from day one. The upfront cost is higher, but you'll save 10x in avoided downtime, data corruption, and emergency fixes.

The Stack

Node.js

TypeScript

PHP

Python

React

PostgreSQL

MySQL

Redis

Docker

AWS

Webhooks

REST API

GraphQL

OAuth 2.0

JWT

Specializations

Twilio A2P 10DLC

Compliance & Implementation for enterprise messaging

Webhook Hardening

Idempotent Processing & Error Recovery

Database Architecture

Postgres/MySQL Optimization & Scaling

Microservices

Communication Patterns & Service Mesh

High-Availability

System Design & Fault Tolerance

API Rate Limiting

Throttling Strategies & Quota Management

What Clients Say

Real feedback from CTOs, founders, and technical leaders

★★★★★

"Naveen doesn't just integrate APIs—he architects systems that scale. Our payment processing went from a constant source of stress to a competitive advantage. Zero downtime, zero errors, zero regrets."

John Davis

CTO, Fintech Startup

★★★★★

"The difference between Naveen and other developers? He thinks like a systems architect, not a code monkey. Our integration handles 10x the volume we originally planned for, and it's never broken. That's production-grade."

Sarah Martinez

Founder, E-commerce Platform

★★★★★

"We've worked with 5 different developers on API integrations. Naveen is the only one who delivered code that didn't need constant fixes. His webhook hardening saved us from a major data corruption incident. Worth every dollar."

Robert Kim

VP Engineering, SaaS Company

Frequently Asked Questions

Everything you need to know before starting your integration project

How long does a typical API integration take?

Simple integrations (single API, basic webhooks) typically take 1-2 weeks. Complex integrations (multiple APIs, custom authentication, high-volume processing) can take 3-6 weeks. I provide a detailed timeline during the discovery phase based on your specific requirements.

What makes your integrations "hardened" vs. standard integrations?

Hardened integrations include: (1) Idempotent processing to prevent duplicate transactions, (2) Schema validation on every incoming payload, (3) Exponential backoff retry logic, (4) Circuit breakers to prevent cascade failures, (5) Comprehensive error logging and monitoring, (6) Webhook signature verification, and (7) Dead-letter queues for failed messages. Most developers skip these—I build them in from day one.

Do you provide ongoing support after deployment?

Yes. I offer three support tiers: (1) Basic - Email support, 48-hour response time, (2) Standard - Priority email + WhatsApp, 24-hour response, (3) Premium - 24/7 availability, dedicated Slack channel, guaranteed 4-hour response for critical issues. All tiers include monitoring dashboards and alerting.

Can you integrate with APIs that don't have official documentation?

Absolutely. I've successfully integrated with undocumented APIs, legacy systems, and reverse-engineered protocols. I use tools like Postman, browser DevTools, and network analysis to map endpoints, authentication flows, and data structures. This is where my systems architecture background really shines.

What's your approach to handling API rate limits?

I implement intelligent rate limit management: (1) Token bucket algorithms for smooth request distribution, (2) Queue-based processing for burst traffic, (3) Automatic retry with exponential backoff when limits are hit, (4) Caching strategies to reduce API calls, and (5) Monitoring dashboards to track usage patterns. Your integration will never hit rate limits unexpectedly.

How do you ensure PCI DSS compliance for payment integrations?

I follow PCI DSS Level 1 best practices: (1) Never store card data—use tokenization, (2) TLS 1.2+ encryption for all API communications, (3) Secure credential management with environment variables, (4) Regular security audits and penetration testing, (5) Comprehensive audit logging, and (6) Compliance documentation for your records. I can also help you navigate PCI self-assessment questionnaires.

What happens if an API provider changes their endpoints or breaks backward compatibility?

I build version-aware integrations with abstraction layers. When APIs change, I update the integration layer without touching your business logic. I also monitor API changelogs and proactively update integrations before deprecation deadlines. For critical systems, I maintain fallback mechanisms and can implement multi-version support during transition periods.

Do you work with non-WordPress systems?

Yes. While I specialize in WordPress/WooCommerce, I've built integrations for Node.js, Python, PHP, and .NET applications. I can work with any tech stack—the principles of hardened API integration apply universally. My expertise is in the integration architecture, not just the platform.