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Category: Construction Engineering

MobileLab: Prevent mobile performance regressions

Early in our mobile optimization efforts, each fix meant big leaps in performance improvement. Today, our apps are optimized so much that our time is best spent preventing tiny regressions that, if shipped, could cause our progress to backslide. At Facebook’s scale, that means checking thousands of commits per day to find regressions as tiny as 1 percent. Previous methods worked well for spotting large performance changes, but to refine the accuracy, we had to build a new system, called…

NEW BOOK ~ RAMBLINGS OF A CHEMICAL ENGINEER

Freshly released from the oven. My VERY FIRST BOOK. NOW OPEN FOR SALE! ONLY HERE IN FB… This is not offered in other platform yet. Special price for October 2018 🙂 BismillahirRahmanirRahim… Ramblings of A Chemical Engineer – the blue book There is a lot to share, but it’s impossible to include everything in the book. I’m glad to have experienced chemical engineering in three different areas; research; oil and gas; and oil and fats. Each area has its own challenges,…

Modularization of the Wayfair App – Wayfair Tech Blog

Here at Wayfair, we are faced with challenges that the average iOS developer likely never has to come across. In the last eight months, we’ve had 47 different developers make 2,000 commits into our repository. Over the past six years, this monumental amount of changes has led to a codebase consisting of thousands of files and nearly 430,000 lines of code. Each day that goes by, we have around 10-15 merge requests go into our master branch, and 50 more…

Coding Conversations: First Time Presenting at a Technical Conference

Last month was the Grace Hopper Celebration of Women in Computing in Houston, Texas, and it’s known as the world’s largest gathering of women technologists. I was lucky enough to attend this year’s event on behalf of LinkedIn. On the second day of the conference, I was scheduled to give a talk about LinkedIn’s load testing and disaster recovery strategies in front of over 600 attendees. As a Site Reliability Engineer (SRE) at LinkedIn’s New York City office, I work as…

Open Source at Uber: A Conversation with Yuri Shkuro, Jaeger Project Lead

By Molly Vorwerck Behind your ability to ‘tap a button and get a ride’ on the Uber platform, a complex ecosystem of microservices works together to deliver a seamless user experience. With over 3,000 microservices running at any given time, visibility into Uber’s distributed architecture is critical to ensuring that these services run as smoothly as possible. When Yuri Shkuro joined Uber Engineering’s New York City office in 2015 as an engineer on the Observability team, this mission couldn’t have…

Letting the sunshine in may kill dust-dwelling bacteria — ScienceDaily

Allowing sunlight in through windows can kill bacteria that live in dust, according to a study published in the open access journal Microbiome. Researchers at the University of Oregon found that in dark rooms 12% of bacteria on average were alive and able to reproduce (viable). In comparison only 6.8% of bacteria exposed to daylight and 6.1% of bacteria exposed to UV light were viable. Dr Fahimipour said: “Humans spend most of their time indoors, where exposure to dust particles…

Microservice Architecture at Medium – Medium Engineering

Microservice Strategies Adopting the microservice architecture is not trivial. It could go awry and actually hurt engineering productivity. In this section, we will share seven strategies that helped us in the early stage of adoption: Build new services with clear value Monolithic persistent storage considered harmful Decouple “building a service” and “running services” Thorough and consistent observability Not every new service needs to be built from scratch Respect failures because they will happen Avoid “microservice syndromes” from day one Build…

Making Ember Applications’ UI Transitions Screen Reader Friendly

Note: An image of the LinkedIn-created logo for the self-focused open source project accompanies this post.  At LinkedIn, we strive to make our user interfaces (UIs) accessible for all of our users, including people with disabilities. So when the modernized, Single Page Application (SPA) version for linkedin.com was being developed a few years ago, we wanted to ensure that it was compatible with screen reading software such as JAWS (Job Access with Speech) and VoiceOver. For context, when UI transitions…

Women of Bitcoin – Square Corner Blog – Medium

Today, we’re excited to kick off our “Women of BTC” blog series. In this series, we’ll hear from members of Square’s Cash App team about the incredible work they are doing to expand access to Bitcoin for our customers. In the first edition of our “Women of BTC” series, we’ll talk with two influential Cash App team members: Liang Shi on the Marketing team and Rebecca Corcillo on Engineering. Liang has been at Square just about a year and is…

Building Enterprise Software on LinkedIn’s Consumer Stack: Behind the Scenes of LinkedIn Talent Hub

Figure 2: Rules engine architecture External services integrationOne of the core capabilities of the Talent Hub is its ability to work with other systems like HRIS, background check providers, interview schedulers, and assessment service providers, etc. LinkedIn has a platform called GaaP (Gateway as a Platform) which is on a mission to turn the entire internet into one big Restful framework. With a Groovy-based scripting framework, GaaP allows developers to create a Rest-endpoint for external APIs and write it in…