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Category: Computer Engineering

ActiveMerchantSquare for Square’s e-commerce API – Square Corner Blog – Medium

We released ActiveMerchantSquare for developers who want to use Square’s e-commerce API with the ActiveMerchant rubygem. If you are a ruby developer you may use the popular ActiveMerchant gem as a common abstraction layer (in production use since 2006) to work with many payments gateways. ActiveMerchantSquare depends on and enhances the ActiveMerchant gem so that you can use it in conjunction with the existing use of ActiveMerchant. Call the standard ActiveMerchant API methods using a card_nonce from the payment form…

Building m.uber: Engineering a High-Performance Web App for the Global Market

As Uber expands to new markets, we want to enable all users to quickly request a ride, regardless of location, network speed, and device. With this in mind, we rebuilt our web client from the ground up as a viable alternative to the native mobile app. Compatible with all modern browsers, m.uber offers an app-like experience for riders on low-end devices, including those not supported by our native client. The app is also tiny—the core ride request app comes in…

Yahoo Mail’s New Tech Stack, Built for Performance…

By Suhas Sadanandan, Director of Engineering  When it comes to performance and reliability, there is perhaps no application where this matters more than with email. Today, we announced a new Yahoo Mail experience for desktop based on a completely rewritten tech stack that embodies these fundamental considerations and more. We built the new Yahoo Mail experience using a best-in-class front-end tech stack with open source technologies including React, Redux, Node.js, react-intl (open-sourced by Yahoo), and others. A high-level architectural diagram…

Speed and Stability: Yahoo Mail’s Forward-Thinking…

By Mohit Goenka, Senior Engineering Manager Building the technology powering the best consumer email inbox in the world is no easy task. When you start on such a journey, it is important to consider how to deliver such an experience to the users. After all, any consumer feature we build can only make a difference after it is delivered to everyone via the tech pipeline.  As we began building out the new version of Yahoo Mail, we wanted to…

Two-factor authentication on Pinterest – Pinterest Engineering – Medium

Emanuele Cesena & Amine Kamel | Pinterest engineers, Security Pinterest is committed to protecting the accounts of Pinners around the world. With an ever-growing user base of more than 175 million people, today we’re announcing that two-factor authentication (2FA) will be rolling out over the coming weeks as an additional layer of security. Here we’ll share how we implemented two-factor authentication on Pinterest. How 2FA works Enabling two-factor authentication means you confirm your identity with a combination of two factors each…

Announcing the New Cloudflare Apps

Today we’re excited to announce the next generation of Cloudflare Apps. Cloudflare Apps is an open platform of tools to build a high quality website. It’s a place where every website owner can select from a vast catalog of Apps which can improve their websites and internet properties in every way imaginable. Selected apps can be previewed and installed instantly with just a few clicks, giving every website owner the power of technical expertise, and every developer the platform only…

Method assesses instructor performance in ‘freeform classroom’

Graduate students (from left) David Evenhouse, Austin Zadoks and Rohit Kandakatla discuss research involving the Freeform Classroom at Purdue University. Credit: University photo/Mark Simons Engineering education researchers have developed a method to assess the effectiveness of instructors who are using an innovative teaching approach that could play a role in boosting the number and quality of engineering graduates. The Purdue Mechanics Freeform Classroom allows students in challenging engineering courses to access hundreds of instructional videos and animations while encouraging interaction…

Scientists create a cellular guillotine for studying single-cell wound repair

Researchers led by Sindy Tang, assistant professor of mechanical engineering at Stanford, have created a new tool for cutting cells, called a microfluidic guillotine. This eight-channel version of their tool can cut cells over 200 times faster than conventional methods. Credit: L.A. Cicero/Stanford News Service While doing research at the Woods Hole Marine Biological Laboratory in Massachusetts, Sindy Tang learned of a remarkable organism: Stentor coeruleus. It’s a single-celled, free-living freshwater organism, shaped like a trumpet and big enough to…

Leadership, Management, and Tribes – Square Corner Blog – Medium

There are a lot of great books about leadership and management. One is Tribes by Seth Godin, which is a great read for any aspiring leader. Tribes talks a lot about leaders versus managers and, as an Engineering Manager, it got me thinking about my own views on leadership and management. Every organization needs great leaders as well as great managers, but are they the same people? And what role do they play? Given that entire books can be written…

Curtain system creates soundproofed office spaces in open floor plans

Multiple sound curtains have been used at the headquarter of the German company Häfele. Credit: Gerriets GmbH Anyone who has worked in an office with an open floor plan becomes aware of a major downside of these otherwise collaborative spaces: It is impossible to hold confidential meetings with colleagues—or even make a personal phone call to schedule a dentist appointment in your office. One solution developed by a German textile manufacturer is a system of sound-insulating curtains to create temporary,…