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In our tech blog you can read about our challenging tasks around development, architecture, data science and more.
PhilippJune 05, 2023Infrastructure as Code (IaC) – keeping Terraform configuration DRY with Terragrunt
The key is to minimize, or even completely eliminate, code repetition by keeping the Terraform configuration DRY (Don’t Repeat Yourself). This is why we migrated to Terragrunt. It's a small wrapper around Terraform promising reduced repetition, better remote-state configuration, and simpler work with Terraform modules. It can be a viable solution for better organizing configuration files and clearly stating differences between deployment environments.DevelopmentCloud
AndreasMay 11, 2023YesWeHack and OTTO stage Live Bug Bounty Hunting event
At this year's Nullcon Berlin, the international IT security conference that brings hundreds of top experts together, we staged a live Bug Bounty Hunt together with YesWeHack, a leading provider of bug bounty services. Around 40 crack security researchers pitched in to subject OTTO's infrastructure security to a hardcore test. This was a welcome chance for us to check our Web applications for security loopholes and learn from a personal exchange with leading-edge researchers at the same time.Data scienceDevelopmentWorking methods
Christian, KonstantinosApril 04, 2023Return-rate forecasting with survival analysis
Especially in OTTO's retail business, accurately forecasting return rates and their fluctuations plays a major role in minimising unnecessary costs. In large-goods deliveries (fridges, sofas etc.) every single return results in very significant costs.Data scienceWorking methods
Michael, SergeyMarch 08, 2023'Real' real-time programmatic advertising with TensorFlow
In collaboration with Online Marketing, Team Siggi at OTTO BI developed an in-house programmatic advertising solution in 2018. For this purpose, among other elements a separate SSP (Supply Side Platform) and DSP (Demand Side Platform) solution was developed, called Orbidder.Development
Team NautikJanuary 08, 2023A Machine Learning approach to real-time display advertising
Let’s be honest, display advertising usually makes people think of an aggressive e-tailers literally hunting them down. Many potential online customers therefore resort to all-or-nothing ad blockers to save themselves from visual overload. However, beyond these two extreme user experiences, in reality display advertising is simply a modern equivalent to a classic poster hanging at the bus stop.Development
ChristianJanuary 06, 2023Rethinking semantic product search: a new approach to queries with unusual spelling variations
In recent years, semantic product search has been widely adopted in global e-commerce. However, many systems exhibit issues in understanding queries with unusual spelling variations. In this blogpost, we show you how Otto’s Team Turing has developed a new system that alleviates these problems. It is live and has lifted the Click-Through Rates (CTR) in the low-recall segments of otto.de by more than 25% and the Conversion Rate (CvR) in the low-hit segment by more than 90%.Development
GuidoDecember 01, 2022Scaling Agile @ OTTO
Agile Development is definitely nothing new at OTTO – the term has long since reached Peak Hype. The first generation of Developers for whom 'Agile' is ancient history (or simply their regular working routine) are now almost Senior Devs. In brief, the term has lost its gloss and what we might now call 'Agile' is often a mix of Agile, Lean, XP and other working principles.Working methods
Andreas, PhilippNovember 01, 2022Kaggle: Machine Learning competition for the best Multi-Objective Recommender System
Major online retailers such as OTTO offer their customers millions of products to explore and purchase. However, finding the right product from such a vast selection without a little guidance can be exhausting! So we work to guide our customers to those products that best match their interests and motivations using personalised recommendations. For this reason we want to enhance our ability to forecast in real time which products each customer will want to see, add to their cart and order at any given moment of their visit.Development
