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PubSub at Scale: PhonePe’s “Bullhorn”
PhonePe

Problem Statement PhonePe, as a payments platform, has an essential feature that allows users to check all past transactions. When payments are made to businesses/merchants, users have access to a historical view of all such transactions. For peer to peer transactions, however,…

Quality Focused Feed Re-ranking
Meesho

What is Feed Re-ranking? Online shopping platforms face intense competition, where the ability to deliver the most relevant products to customers is crucial. A well-organized and relevant product feed, which inherently is a list of products, forms the backbone of any E-commerce…

Building Meesho’s ML Platform: From Chaos to Cutting-Edge (Part 1)
Meesho

The Genesis: How a Friday Night Roast Sparked Meesho’s ML Platform It all started in early 2022, over a casual Friday evening catch-up. Like many great origin stories, this one began with friendly banter between a group of backend engineers and data scientists. As the…

The Journey to Faster Android Builds: How We Slashed Our Build Times at slice
Slice

As an Android developer at slice, watching our app evolve from a simple financial product to a full fledged bank has been exciting. But this growth came with a challenge familiar to many developers: increasingly painful build times. What started as a minor inconvenience…

slice-engineering.medium.com
The Tale Before the Design System
PhonePe

In the early days of PhonePe, we started with just one application. Our pace was fast, almost like a race against time, and our initial engineers managed to keep things tidy. Colors, typography, and size constants were well-organized, ensuring a cohesive look and feel. Our small…

Data products, data contracts: A new model for data management in financial services
Hasura

In Part 1, we covered the data doom loop [https://hasura.io/blog/escaping-the-data-doom-loop-in-financial-services] – the cycle of complexity, inefficiency, and eroding trust in financial data that persists despite massive investments. The solution isn’t another sweeping…

Hasura: Powerful access control on MongoDB data
Hasura

Across industries – and especially in highly regulated sectors like healthcare, financial services, and government – MongoDB has been a preferred database solution for organizations handling large volumes of sensitive data that require strict compliance adherence. In such…

Seamlessly Migrating from MongoDB to PostgreSQL: Leveraging Data Platform for Scalable Success
Slice

Freaking hard Migration from MongoDB to PostgreSQL: Leveraging Data Platform for Scalable Success Introduction In today’s fast-paced digital landscape, selecting the right database technology is a crucial decision for any organisation’s success. Initially, MongoDB’s flexible…

slice-engineering.medium.com