Best of Fintech — November 2025

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   Article

   Groww Engineering·27w

   When Two Databases Become One: How DuckDB Saved Our Trading Operations from Manual Reconciliation

   A trading platform faced recurring position-order mismatches across two separate MySQL databases, requiring 20-30 minutes of manual reconciliation by two engineers. By leveraging DuckDB's MySQL scanner extension to perform cross-database joins, they automated the entire process into a 2-3 minute operation running every 15 minutes. The solution eliminated manual intervention, improved accuracy from 85% to 99.9%, and enabled proactive monitoring instead of reactive fixes during market hours.

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   Article

   Product Hunt·28w

   Logo.dev: Reliable logos for any product, instantly.

   Logo.dev is an API service that provides reliable brand logos for companies, stock tickers, and crypto symbols through simple URL-based fetching. Built as a replacement for Clearbit's discontinued logo API, it offers global CDN delivery, automatic fallback logos, daily updates, and serves over a billion requests monthly to 25,000 developers. The service is free for most users and designed to be a stable, long-term solution for displaying logos in dashboards, SaaS products, and internal tools.

   90

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   Video

   Awesome·27w

   The complete disappearance of a tech billionaire...

   Jack Ma, founder of Alibaba and China's richest man, saw his empire crumble after a 2020 speech criticizing Chinese regulators and state banks. The government canceled Ant Group's $37 billion IPO, fined Alibaba $2.8 billion, and Ma disappeared for three months. Upon returning, he stepped down from leadership roles and lost half his fortune ($36 billion). The incident demonstrates how China's government maintains control over tech billionaires, regardless of their wealth or global influence.

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