May, 2016

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How Uber for Business Engineering Verifies Your Ride in Real Time

Uber Engineering

Our last article on Uber for Business (U4B) discussed implementing our ride profiles feature. Today, we want to share more insight into the kind of technical challenges we’re solving. Just because our mission is to improve businesses’ experiences doesn’t … The post How Uber for Business Engineering Verifies Your Ride in Real Time appeared first on Uber Engineering Blog.

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When do you involve users in a user-centered design process?

Zalando Engineering

One of the favourite parts of my job is that I get to discuss and share insights with relevant professionals of how to best apply user-centered design practice in organisations. When we talk about user-centered design, we often say it is about placing users at the centre of a product. What does that really mean? How do you understand it and apply in your daily product design process?

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Recap of Hadoop News for April

ProjectPro

News on Hadoop-April 2016 Cutting says Hadoop is not at its peak but at its starting stages. April 1, 2016. Datanami.com At his keynote address in San Jose, Strata+Hadoop World 2016, Doug Cutting said that Hadoop is not at its peak and not going to phase out. Hadoop is still undergoing digital mutations and the experts are considering it to be in its starting stages.

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How to deliver millions of personalised newsletter emails on AWS

Zalando Engineering

At Zalando, we strive to help our customers find the most relevant fashion they can imagine. Zalando is known for its great fashion assortment and its huge selection of products. In order to ensure that our customers are not overwhelmed by this vast selection of products, the Recommendations Team builds systems that ensure that customers find products in an easy and convenient way.

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Get Better Network Graphs & Save Analysts Time

Many organizations today are unlocking the power of their data by using graph databases to feed downstream analytics, enahance visualizations, and more. Yet, when different graph nodes represent the same entity, graphs get messy. Watch this essential video with Senzing CEO Jeff Jonas on how adding entity resolution to a graph database condenses network graphs to improve analytics and save your analysts time.

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Can you hack it? Yes you can!

Zalando Engineering

Zalando Tech is hosting a 24-hour online hackathon on June 4, known as the Zalando CodeSprint , in partnership with HackerRank. We’ve put together eight system-graded challenges to solve, with participants welcome from anywhere in the world. In the lead up to this exciting challenge, we wanted to catch up with a couple of the developers who helped craft each problem statement, and find out the motivations behind the event.

IT 40
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Zalando Techspert Series: How to foster an innovative culture

Zalando Engineering

The Zalando Techspert Series: A Zalando-led initiative to encourage and initiate discussions about ‘softer’ tech topics such as, but not limited to, agility, tech culture, and Berlin as Europe’s most magnetic tech hub. Why have we set this up? We want to spearhead the discussions that matter to tech companies and businesses of all sizes: How to recruit top talent, how to inspire innovation, and how to be leaders in a competitive digital market.

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Hadoop The Definitive Guide; Best Book for Hadoop

ProjectPro

With petabytes of digital information surrounding us on any topic under the sun, we often forget the importance of reading a book , to gain in-depth understanding about the latest big data technologies. We usually refer to the information available on sites like ProjectPro, where the free resources are quite informative, when it comes to learning about Hadoop and its components.

Hadoop 40
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Our polyglot approach: Getting started with Rust

Zalando Engineering

I recently started using Rust – the programming language. My team had thought about the idea of using a polyglot approach when building services – we think that we should always use the right tool for the job. We also believe that we should build our services so that others can use them, thus, while prototyping, we’ve built projects in many programming languages as part of migrating our shop monolith to microservices.

Scala 40
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Understanding the Power of Hadoop-as-a-Service

ProjectPro

Big data industry has made Hadoop as the cornerstone technology for large scale data processing but deploying and maintaining Hadoop clusters is not a cakewalk. The challenges in maintaining a well-run Hadoop environment has led to the growth of Hadoop-as-a-Service (HDaaS) market. “Typical enterprise Hadoop distributions rely on a lot of moving parts -- leveraging up to 20 or more disparate components -- which leads to management complexity and total cost of ownership (TCO) issues.”-

Hadoop 40
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We couldn't get enough: Stack Overflow, Round 2

Zalando Engineering

After our incredibly successful Stack Overflow event , we were impressed with how open and approachable Joel Spolsky was to our team of developers and recruiters. Not only did he take part in a great Q&A session with our VP of Engineering Eric Bowman, but he also hung around afterwards to spend some quality time with Zalando’s tech recruiters, sharing his knowledge as a founder and CEO.

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Understanding User Needs and Satisfying Them

Speaker: Scott Sehlhorst

We know we want to create products which our customers find to be valuable. Whether we label it as customer-centric or product-led depends on how long we've been doing product management. There are three challenges we face when doing this. The obvious challenge is figuring out what our users need; the non-obvious challenges are in creating a shared understanding of those needs and in sensing if what we're doing is meeting those needs.

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Zalando's Tech Radar: All you need to know

Zalando Engineering

Half year ago, we agreed on a set of principles and started working on our Tech Radar; now, we’re proud of having published its second release for Zalando Technology. We’ve also open sourced the Zalando Tech Radar visualisation (including code) via our public GitHub repository. Some of the more prominent changes compared with first Radar release are: Play for Scala and Sbt moved from Trial to Adopt Kafka also moved from Trial to Adopt Flink changed from Assess to Trial AngularJS 2.x rises to Ass

Scala 40
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Top SQL-on-Hadoop Tools

ProjectPro

Big Data has found a comfortable home inside the Hadoop ecosystem. Hadoop based data stores have gained wide acceptance around the world by developers, programmers, data scientists, and database experts. Convenient as the data storage is, Hadoop’s inherent reporting mechanism presents a number of challenges to be overcome, the prominent ones being learning a new language from scratch (for querying and reporting on Hadoop data sets) and performance related issues.

Hadoop 40
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Dortmund Docker Meetup – A cooperation between Zalando and Docker

Zalando Engineering

Zalando Tech has gone through some enormous changes in the last year, with the transition of its online Fashion Store from a monolithic application, hosted in datacenters, to microservices, hosted on AWS. To deal with this change, the Zalando STUPS platform was created, allowing our autonomous teams to easily deploy their services via Docker containers.

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How to avoid tapping the “Back” button in an interface design

Zalando Engineering

As part of my daily UX job, I get to research a lot of mobile apps. Lately, I have been looking into different ways to move back one screen without having to tap on the “back” button. Simply put, see this interaction situation: On iOS and Android, “back” interaction is generally placed in the top left area in the title bar (except for some cases on Android, which has a physical “back” button on the device).

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Beyond the Basics of A/B Tests: Highly Innovative Experimentation Tactics You Need to Know

Speaker: Timothy Chan, PhD., Head of Data Science

Are you ready to move beyond the basics and take a deep dive into the cutting-edge techniques that are reshaping the landscape of experimentation? 🌐 From Sequential Testing to Multi-Armed Bandits, Switchback Experiments to Stratified Sampling, Timothy Chan, Data Science Lead, is here to unravel the mysteries of these powerful methodologies that are revolutionizing how we approach testing.

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Migrating from Spray to Akka HTTP

Zalando Engineering

Spray is a well-known HTTP library in the Scala ecosystem. It was released in 2011, and since then it’s been widely used by the Scala community. It was recently announced that Spray would be replaced with Akka HTTP, thus cementing Akka HTTP as the successor of Spray. It’s maintained by Lightbend and it's been recommended that users migrate to it soon.

Scala 40
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Scalable Fraud Detection for Zalando's Fashion Platform

Zalando Engineering

Longread: 15 minutes/3,282 words Zalando’s vision of growing from an online fashion retailer to a fashion platform not only opens up internal Zalando services to external partners, but also dramatically increases the amount of data that flows through the company's backend. At Zalando, it’s up to individual teams to ensure that the services they own are ready for this challenge.

Scala 40
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Is Hadoop going to Replace Data Warehouse?

ProjectPro

Hadoop is the most talked about innovation in the IT industry that has shaken the entire data centre infrastructure at many organizations. As the appetite for Hadoop and related big data technologies grows at an exponential rate, it is not out to spell the death of data warehousing. Data warehousing as a technology is evolving. Hadoop replacing the data warehouses still continues to be the hot-topic of discussion, even as mass majority of the enterprises continue to claim that they still need da

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The nuts and bolts of the Docker-Selenium project

Zalando Engineering

Many teams at Zalando have been using Docker-Selenium : A project that aims to provide Selenium inside a Docker container with Chrome and Firefox. Leo Gallucci, Docker-Selenium’s creator and an engineer on our Test Infrastructure team, sat down with Zalando Open Source Evangelist Lauri Apple to take a closer look at his two-year-old project. Lauri Apple: Why did you create Docker-Selenium?

Project 40
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Peak Performance: Continuous Testing & Evaluation of LLM-Based Applications

Speaker: Aarushi Kansal, AI Leader & Author and Tony Karrer, Founder & CTO at Aggregage

Software leaders who are building applications based on Large Language Models (LLMs) often find it a challenge to achieve reliability. It’s no surprise given the non-deterministic nature of LLMs. To effectively create reliable LLM-based (often with RAG) applications, extensive testing and evaluation processes are crucial. This often ends up involving meticulous adjustments to prompts.

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Zalando explores the Hadoop Summit 2016

Zalando Engineering

With this year being the 10th birthday of Apache Hadoop, Dublin saw 1,400 members of the tech community gather for the 4th Hadoop Summit Europe. These days, the word Hadoop has a somewhat negative connotation in the minds of some people, but this Summit proved that it is an all-encompassing word to describe a diverse ecosystem of technologies. With our Fashion Insights Centre located in Dublin, where our engineers and data scientists use several Hadoop technologies, it made perfect sense for Zal

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A resilient, Zookeeper-less Solr architecture on AWS

Zalando Engineering

Since last year, Zalando has sped up its adoption of cloud-provided, on-demand infrastructure; we decided to embrace AWS. This meant teams would be given more freedom by being allowed to administer their own AWS accounts. In addition to this, we were presented with a useful set of tools called STUPS. Explaining STUPS in detail would require a whole blog post in itself!

AWS 40
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HDFS Interview Questions and Answers for 2023

ProjectPro

The next in the series of articles highlighting the most commonly asked Hadoop Interview Questions, related to each of the tools in the Hadoop ecosystem is - Hadoop HDFS Interview Questions and Answers. Table of Contents Commonly Asked HDFS Interview Questions and Answers for 2023 HDFS Interview Questions and Answers to prepare for Hadoop Job Interview in 2023 Ace Your Next Job Interview with Mock Interviews from Experts to Improve Your Skills and Boost Confidence!

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Zalando Tech are the new unicorns at Microservices Day

Zalando Engineering

On May 10th, Zalando was among the four technology unicorns that presented at Microservices Day London, along with RedHat, Uber, and AutoScout 24. Microservices Day is a one-day, single-track, non-profit event that focuses on the business benefits of utilising microservices. Since we’ve begun moving our Fashion Store from a monolith to microservices , we wanted to share what Zalando has learned from the past year of digging deeper into data integration in a microservices-based environment.

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The Big Payoff of Application Analytics

Outdated or absent analytics won’t cut it in today’s data-driven applications – not for your end users, your development team, or your business. That’s what drove the five companies in this e-book to change their approach to analytics. Download this e-book to learn about the unique problems each company faced and how they achieved huge returns beyond expectation by embedding analytics into applications.