~/devreads

#ecommerce

9 posts

1 Jun

11 May

5 May

Piyush Vyas 9 min read

In the world of e-commerce, a click of a “Buy Now” button starts an invisible race. Across India (metro cities or remote villages) millions of customers expect their packages to arrive with a speed that feels like magic. But behind that “magic” is a monumental logistical puzzle. At Flipkart, we serve over 500 million registered users . We manage 150…

operations-researchecommercetime-series-forecastingedelmandata-science

15 Apr

24 Feb

Siddhartha Narang 13 min read

Re-architecting Flipkart’s Rate Card Engine: The Journey to Building a High-Scale, Generic Rate Card Platform Introduction In the hyper-competitive world of e-commerce every cent matters. How marketplace fees are calculated, charged and displayed to millions of sellers at Flipkart directly impacts revenue, seller trust, and business agility. For years, the legacy system responsible for this task was the Agreement Master…

rate-cardsoftware-architecturedistributed-systemsecommercedatabase

18 Feb

4 Dec 2025

Sri Raghava Muddu 7 min read

Image Source: Google Nano Banana TL;DR LLMs struggle to summarize the thousands of reviews for a single product because of context window limits and conflicting opinions. The proposed solution, XL-OPSUMM, is a scalable framework that summarizes reviews incrementally (in chunks) to overcome these limits. Its key innovation is the Aspect Dictionary — a numerical scorecard that tracks the exact count…

ecommercelarge-language-modelsdeep-learningdata-sciencetext-summarization

1 Dec 2025

24 Oct 2023

Arit Developer 7 min read

Accepting online payments is now a universal must-have, catering to everyone from solo entrepreneurs to massive global corporations. PayPal’s Standard Checkout allows for seamless integration of PayPal’s Payment Buttons component into your e-commerce app, granting you the power to accept online payments. In this guide, I am going to show how to add Standard Checkout to a simple shopping app,…

programmingpayments-technologyecommercejavascriptpayments