Android, iOS and cross-platform engineering.
A Dual Perspective Hypergraph Neural Networks Download to access the research paper DPHGNN.pdf 2 MB download-circle Every e-commerce company has a version of this problem: an order gets placed, the delivery is attempted, and the package comes back. Return-to-Origin, or…
At ShareChat, we recently overhauled the architecture of our events ingestion system. As part of this exercise, we also migrated all our event data contracts from JSON to protobuf.
Every week I meet a few analysts during my office hours and they talk about a number of things like- careers, hobbies, dreams, managers, colleagues, family, higher education, fitness, balancing priorities and off course, Bangalore traffic. Of late, one common theme is about AI…
Ankit Kumar | Oct 2025 · 6 min read The “Why”: Moving Beyond the Grid Picture this: A white background. A shirt. Fabric details. Fit specs. A price tag. For decades, this has been the status quo of online shopping. It is clinical, clear, and — let’s be honest — completely…
Airborne is an over-the-air update platform which helps merchants eliminate release bottlenecks and prevent delays that could disrupt millions of transactions and users
The Problem With Assumed Security As systems scale, security shifts from a one-time setup to an ongoing architectural responsibility that needs continuous attention as infrastructure evolves and teams change. A key risk in this environment is the gap between assumed and actual…
At ShareChat, we recently overhauled the architecture for the data ingestion system. As part of this exercise, we also moved 100% of our event data contracts from JSON to Protobuf.
In the world of live sports streaming, there is no “undo” button. Live events bring out emotions in viewers and any minor buffering or failure can cause disappointment in our customers, especially if it happens in crunch moments of the live event. Our Live video validation has…
Introduction In the dynamic landscape of e-commerce, data is the bedrock of decision-making, and app stability is the foundation of user experience. At Myntra, where millions of users engage with our platform daily, ensuring the reliability of both is paramount. This necessity…
Archana opened her WhatsApp on a Monday morning. Among her messages sat one from Meesho: a sale announcement with a single product image. A kitchen mixer. She scrolled past without clicking. Here's what we didn't know: Archana had spent the previous week browsing ethnic wear.…
At Meesho, reviews are one of the strongest drivers of trust. They influence not just what users buy, but how sellers build reputation and how product quality is interpreted relative to price. But building a review system at scale quickly stops being a UI problem. It becomes a…
AI Video Generation at Scale — Prompts Don’t Scale AI video generation has rapidly moved from a mere novelty to a practical tool, allowing users to easily create brief video clips from text prompts. While generating a single, impressive video is straightforward, the true…
There was a time when we thought uptime was simple. If dashboards were green, APIs were healthy, and latency looked good, we believed the system was doing its job. If something slipped, uptime was considered impacted — end of story. As Meesho grew, that definition started to…
At ShareChat's Central Data Platform (CDP) team, we handle more than 1,000 different event types across 5 apps, ingesting upward of 80 billion events per day.
If you’ve ever streamed a high-stakes match on JioHotstar, the experience probably felt like a simple “tap and play”. It’s a seamless transition from the app icon to the stadium; a flick of a finger and you’re right there, cheering for your players to hit another six. Beneath…
An OOM (Out of Memory) crash is simply when the app runs out of space to think — and shuts down. Every byte counts when your users span across Bharat. At Meesho, we build for everyone in India, including people using budget phones with limited memory. When an app runs out of…
Client Side Ad Insertion(CSAI) levels up using multi-period DASH in the Android ecosystem. This is our journey to upgrade ExoPlayer to leverage multi-period DASH.Introduction Multi-period DASH is a variant of DASH format that offers significant advantages, such as the ability to…
Why DICE Exists? DICE stands for Democratizing Internet Commerce for Everyone. This is our mission as an organization to make e-commerce accessible to every corner of India, empowering sellers, delivery partners, and users who were previously left out of the digital economy.…
At ShareChat’s Central Data Platform (CDP) team, we cater to more than 1000 different event types from 5 different apps, receiving and ingesting more than 80 billion events per day on a regular basis.
Gen AI Video — Building A Scalable Validation Framework We discuss building strong eval frameworks as part of our Generative AI studio to ensure that generated video maintains a high quality bar.Introduction As JioHotstar scales to serve one of the world’s largest streaming…
Modernizing Dependency Management: Beyond CocoaPods (Part 2 — The Execution) Recap In Part 1, we shared the strategy — why we had to move away from CocoaPods, how we evaluated our options, and the phased migration plan we designed to modernize 60 pods over 2 quarters without…
Most career decisions are shaped by people and perspectives beyond ourselves. We speak to friends, seniors, and ex-colleagues. We Google. We read. And almost always, we look for one thing: other people's experiences. When someone considers joining a company, they aren't just…
Modernizing Dependency Management: Beyond CocoaPods (Part 1 — The Strategy) CocoaPods formed the spine of our iOS build workflow. In this two part blog, we’re sharing our journey to transparently switch away from CocoaPods to SPM, minus the drama, but plus all the scars!Where We…
As CRED grew, so did the invisible machinery behind it. Scaling from 100 to over 400 database instances pushed our monolithic Percona Monitoring Management (PMM) to its breaking point. This is the story of how we decoupled our observability stack, pivoting to VictoriaMetrics…
At Meesho, we are constantly striving to understand our users better and enhance their experience. Every day, users can generate billions of events on our platform from browsing products to completing purchases and we aim to translate these signals into insights instantly. From…
At ShareChat, Redis APIs were embedded in almost everything: caches,recommendation delivery systems,deduplication queues, ranking pipelines, counters, you name it.
By mid-2023, we had transformed our ML stack—building a real-time feature store, optimizing model retrieval, and fine-tuning ranking. But two critical gaps remained: 🔹 Scaling model inference without hitting infrastructure roadblocks 🔹 Moving embedding search from batch to…
At ShareChat — a leading social media platform with over 200M monthly active users (MAU) — our data platform ingests and processes more than 1 million events per second. However, this event load isn't constant.
By late 2022, we had built something we were truly proud of—a real-time ML serving system with a DAG-based executor, a feature store, and an interaction store powering key ranking and personalization models. It was a major milestone, the culmination of months of effort from data…
Introduction In the fast-paced world of e-commerce, every millisecond and every pixel counts. At Myntra, where visual content drives discovery and engagement, we embarked on a critical mission: to revolutionise how animations are delivered in our Android and iOS apps. This…
Every time a user views a post, an event is fired to inform us. We feed this real‑time stream into our recommendation system, e.g. analytics pipelines, feature computations, and view counters.
At Meesho, creativity isn’t about out of the box ideas, it’s about building messages grounded in our user’s truth. We speak in the language of our users, shaped by insight, and designed to deliver impact. For us, creativity is a powerful loop. It begins with a user's insight,…
Search at Meesho For an e-commerce platform like Meesho, optimizing Search is pivotal to enhancing the user experience, improving product visibility and faster discovery, and eventually increasing conversion rates. Users search in multiple Indian languages looking for quality…
In today’s diverse technological landscape, the ability to create applications that seamlessly operate across multiple platforms is a significant advantage. At Pincode, our seller app, was initially created using Android SDKs with Compose UI in Kotlin, and catered exclusively to…
The Rising Tide of E-commerce Fraud We are deeply aligned with our aim to democratize our platform—with new entrepreneurs joining and logistics partners working across pin codes in India. This inclusivity is our biggest strength—and also the reason why we need to be extra…
Introduction: The Need for Bulletproof Deployments at Scale As our platform scaled and user expectations rose, so did the need for rock-solid infrastructure. One critical challenge surfaced: ensuring zero-downtime deployments while rolling out new features at speed. Despite…
New users rarely give second chances. If their first experience on the app, especially the homepage product feed, feels irrelevant then they leave quickly. At Meesho, we noticed that our static homepage product feed for new users was causing high bounce rates and a poor first…
The Challenge: Scaling Secure Development As engineering teams and codebases grow, managing sensitive information like API keys, tokens, and config files becomes increasingly challenging. These secrets can occasionally slip through, and resolving such issues like rotating…
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…
At ShareChat, our in-house ML feature system powers personalized feed recommendations across the platform.Built on Apache Flink, it serves as a feature-as-a-service platform for scalable computation
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…
Revolutionizing Communication at Scale At Meesho, seamless communication is at the heart of our user experience. Whether it’s an OTP for login, an order update, or a personalized shopping recommendation, our platform ensures timely and reliable messaging across multiple…
Revolutionizing Communication at Scale At Meesho, seamless communication is at the heart of our user experience. Whether it’s an OTP for login, an order update, or a personalized shopping recommendation, our platform ensures timely and reliable messaging across multiple…
Our recording infrastructure focuses on WebRTC video and audio. The goal is to allow moderation teams to access clean, archived footage—composite or individual—for compliance, post-production, or analysis.
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…
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…
Introduction In Android development, network performance issues can be notoriously hard to debug. While tools like Firebase Performance Monitoring provide high-level insights like error rates and latency, they fall short in providing granular visibility into each stage of the…
At ShareChat, Machine Learning models form the backbone of our recommendation system, playing a pivotal role in delivering the most relevant and engaging content to our users.