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Raj Kumar Das

@rajkumardas

Full-stack engineer at Independent Engineering Practice / Global Remote Contracts who published WordPress.org plugins and delivered 100+ WooCommerce builds.

India

Message

At Independent Engineering Practice / Global Remote Contracts, I deliver web platforms, custom extensions, and automated workflows for international businesses. I’ve published Crypto Payment Checkout by Intrxn and Visual Crossing Weather Forecast on WordPress.org.

I’ve completed 100+ bespoke WooCommerce implementations, including custom cart logic, commission splits, payout routing, and invoicing. For ppsrassetcheck.com.au, I moved the store from Payhip to WordPress and Easy Digital Downloads on Sydney Google Cloud infrastructure, with Stripe and PayPal AUD processing.

I’ve also connected OpenAI, Claude, and Gemini APIs to WordPress publishing workflows, and built automation scenarios with n8n and Make.com. My work includes encrypted healthcare intake and booking engines, as well as a custom B2B Customer Credit Application extension published on the OpenCart marketplace.

Experience

Work history, roles, and key accomplishments

Current

Lead Full-Stack Engineer

Current

Independent Engineering Practice

Jan 2010 - Present (16 years 9 months)

Operate as principal technical lead and autonomous backend architect delivering mission-critical web platforms, custom extensions, and automated business workflows for international businesses, creative agencies, and startups.

WordPress WooCommerce PHP MySQL REST APIs SOAP APIs Linux Nginx Apache Google Cloud Platform Redis Cloudflare Python NodeJS WebSockets Stripe PayPal N8n Make.Com Zapier Playwright OpenAI Claude Gemini

Education

Degrees, certifications, and relevant coursework

West Bengal University of Technology

Bachelor of Computer Applications, Computer Applications

Pursued a Bachelor of Computer Applications with coursework in software engineering, data structures, relational database management systems, object-oriented programming, and system analysis and design.