Quastor

Quastor

Get Summaries of Big Tech Engineering Blog Posts on Frontend, Backend, Machine Learning, Data Engineering and more!

Featured Posts

How Uber Scaled Cassandra to Tens of Thousands of Nodes

How Uber Scaled Cassandra to Tens of Thousands of Nodes

An introduction to Apache Cassandra and issues Uber ran into when scaling. Plus, API versioning practices at LinkedIn, challenging algorithms to try and more.

How Grab uses Graph Databases to Reduce Fraud

How Grab uses Graph Databases to Reduce Fraud

Plus, Tips on Negotiating Compensation for Software Engineers from a Principal Engineer at Amazon

Why Netflix integrated a Service Mesh in their Backend

Why Netflix integrated a Service Mesh in their Backend

We'll talk about what a service mesh is, what purpose it serves and why Netflix added one. Plus, strategies you can use to achieve your goals.

Scaling Microservices at DoorDash

Scaling Microservices at DoorDash

Common microservice failures at DoorDash and how they mitigate them. Plus, nine ways to shoot yourself in the foot with Postgres.

How Quora scaled MySQL to 100k+ Queries Per Second

How Quora scaled MySQL to 100k+ Queries Per Second

Plus, what makes a great manager of software engineers, how shopify uses pair programming for mentorship, actionable tips on improving speed and more.

Machine LearningMachine Learning
How OpenAI trained ChatGPT

How OpenAI trained ChatGPT

Plus, how Meta integrated Raft with MySQL, lessons learned at Slack while building on AWS GovCloud and How Nike's bot detection works

Archive

How Uber Built an Exabyte-Scale System for Data Processing

How Uber Built an Exabyte-Scale System for Data Processing

We'll talk about data processing at Uber and how they revamped their ETL platform to make it modular and scalable. Plus, software testing anti-patterns and how to get better at finishing your side projects.

How Pinterest Stores and Transfers Hundreds of Terabytes of Data Daily

How Pinterest Stores and Transfers Hundreds of Terabytes of Data Daily

We'll talk about Change Data Capture and the internal system Pinterest built to handle CDC for all their databases. Plus, a practical guide on how you can improve your coding skills with cognitive psychology, a visual guide to memory allocation and more.

Arpan KG
Arpan KG
How Cloudflare Mitigates Thousands of DDoS Attacks Every Hour

How Cloudflare Mitigates Thousands of DDoS Attacks Every Hour

We'll talk about the different types of DDoS attacks and how Cloudflare prevents them. Plus, resources on public speaking for software engineers, things we learned about LLMs in 2024 and more.

The Architecture of Canva's Data Platform

The Architecture of Canva's Data Platform

We'll talk about Snowflake and how Canva built a monitoring system around it. Plus, how to optimize code, why Unicode is harder than you think, automating your job search and more.

The Architecture of Stripe's Document Database

The Architecture of Stripe's Document Database

Stripe built a document database on top of MongoDB. We'll go over it's architecture and why they built it. Plus, how Nginx scales, how to give constructive feedback and more.

How Airbnb Processes a Million User Events Every Second

How Airbnb Processes a Million User Events Every Second

An introduction to Apache Flink, the Lambda Architecture and the Architecture of Airbnb's platform. Plus, how Duolingo cut their AWS bill by 20%, Google's State of the Art Quantum chip and more.

How LinkedIn Scaled Their System to 5 Million Queries Per Second

How LinkedIn Scaled Their System to 5 Million Queries Per Second

How LinkedIn used BitSets, Bloom Filters, Caching Strategies and more to Scale their Safety system to 5 million queries per second. Plus, questions you'll get asked frequently as an engineering manager and tips on how to scale a large codebase.

How LinkedIn uses Event Driven Architectures to Scale

How LinkedIn uses Event Driven Architectures to Scale

An introduction to EDAs and the Actor Model. Plus, how to ship projects at big tech companies, how Coinbase uses ML to predict traffic patterns and more.

How Reddit built a Metadata Store that Handles 100k Reads per Second

How Reddit built a Metadata Store that Handles 100k Reads per Second

We'll talk about the design of Reddit's Metadata Store and the tech behind it. Plus, non-llm software trends to be excited about, how Python's Asyncio works, how GitLab automates engineering management and more.

How Robinhood uses Graph Algorithms to prevent Fraud

How Robinhood uses Graph Algorithms to prevent Fraud

How Robinhood uses algorithms like Connected Components, PageRank and more. Plus, what makes an outstanding programmer, four important software design principles and more.

Arpan KG
Arpan KG
The Architecture of Dropbox's Load Balancing Service

The Architecture of Dropbox's Load Balancing Service

How Dropbox reduced spend on hardware by improving their load balancing. Plus, how to move off heroku and tips on how much you should charge for consulting.

How Stripe synchronizes time across their distributed system

How Stripe synchronizes time across their distributed system

How Stripe uses physical and logical clocks for keeping time. Plus, a deep dive on caching in system design, how eBay uses LLMs to improve developer productivity and more.

Arpan KG
Arpan KG
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