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Hi, this is Mike Reiche

Mike Reiche

Senior Solution Architect at EWERK Digital GmbH

I am a passionate Software Architect with 20+ years of working experience. I write rock solid tools and frameworks for developers in highly frequently used projects. I am a protectionist of Clean Code, SOLID and KISS principles. I believe in the power of Open Source and the ideology of a both economical as well ecological sustainable world.

Leadership
Analytics
Innovation
Pragmatism
Presentation
Eccentricity

Skills

Frameworks & Microservices

I’m familiar in writing enterprise web and eCommerce services in Java, Golang, PHP with interprocess communication based on Restful or gRPC backends, third-party payment and identification providers.
Frontend Web Development

I’ve seen many frameworks come and go over the years, but Microsoft did a great job with Typescript, that brings all the features back we used to. I’m currently working with my beloved aurelia.io integrated with Bootstrap and Material.
Mobile & Responsive

Responsiveness is more than screen sizes. It’s about the whole fluid user experience like connectivity, input devices and user interface guidelines. I developed Android and iOS apps including notifications and InApp purchases with thousands of users.
Availability & Reliablity

No one wants to use slow and slabby software. Performance is key for a great user experience. That’s why I’m focusing on Clean Code and fast reliable software that never goes down.
Multimedia & Games

I used to code games and multimedia features for websites using Flash back in the days. I also developed interactive and AR presentations for exhibitions using Voforia. I have some experience in Godot.
Security & Privacy

Developing secure software is still a hard thing, especially when it comes to micro web services. My knowledge about OWASP and GDPR compliances helps to improve the awareness about this topic.
DevOps

I’m experienced with several build tools and pipelines like Jenkins and Gitlab. Git adopter since 2005 and I managed the challenging migration of ~100 repositories from Subversion together with my whole team into multistaged builds.
Testing & QA

Unit testing is a must and user acceptance tests should be present in any serious project. I was lead developer of Testerra 2 Selenium based Automation.
Containerization & Orchestration

I fell in love with Docker containers on first touch. Capable of deploying, managing applications on Kubernetes with HELM 3.
Linux

I used Linux many years as my main operating system and managed ~50 dedicated servers in shared public environments with web and mail services. Today I use PaaS and another famous POSIX compliant OS on my machine.
Big Data

I’m capable of managing MongoDB and MariaDB services in cluster setups. I also gained some experience with Apache Spark and Hadoop in private projects.
Programming

These are not my favourite programming languages, but I have some skills in C/C++, Perl, Qt, Gtk, WxWidgets, Bash - waiting to be reactivated…

Recent Posts

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Create candlestick charts with native PostgreSQL first-last-aggregate

When you want to create Candlestick charts you need to group time series into time-frames like: Give me the highest, lowest and average value for each 1 hour of a day. To do so, you can use this native PostgreSQL query: select min(cp.created) as created_min, max(cp.created) as created_max, cp.symbol_id, avg(cp.price) price_avg, max(cp.price) price_max, min(cp.price) price_min from generate_series(current_timestamp::timestamp-interval '7' day, current_timestamp::timestamp, interval '1' hour) as d(dt) join prices cp on (cp.created >= d.
Sunday, September 22, 2024 | 2 minutes Read
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Openshift (OKD) cluster recovery when master nodes down due apiserver certificates expired

This guide helps you to recover a cluster when kubelet is down and/or apiserver DaemonSets are failing because of outdated certificates. The main symptom is, that all master nodes are NotReady and the cluster down. Detect the symptom Login into one of the master nodes View pod status crictl pods View the pod logs crictl logs -f ${POD_ID} 2>&1 Symptom: Login into cluster not possible via oauth-openshift I may happen, that even the oauth-openshift is not operational and responding with 500 Internal Server Error.
Wednesday, August 28, 2024 | 2 minutes Read
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Testerra goes Open Source

This was a long term task with many challenges to master, but after more than one year before we did the first step, we finally accomplished to make Testerra Open Source. Testerra is the Test Automation Framework for Web Applications based on Selenium. It may be the same like any other frameworks on the market out there, but with the experience of experts team and a variety of projects with thousands of test cases, developed by the partners of my current company T-Systems MMS in Dresden.
Sunday, March 14, 2021 | 1 minute Read