Uwe Schäfer

Coding Architect / Lead Engineer

PRISMA European Capacity Platform GmbH

Curriculum Vitae

Open minded, technology driven and sometimes unconventional, without loosing the focus to the purpose of all IT work: creating value for the business by solving the right technical problems (rather then coding for the sake of it).

Working Knowledge

EventSourcing / CQRS
Domain Driven Design
Microservices
AWS based Cloud Computing
Memory based Data processing
Stream processing
Reactive programming
Akka
Coaching / Mentoring
modern Java
Kotlin
SML
Redis
Memcached
noSql
MongoDB
PostgreSQL
Cassandra
Apache Wicket
Guice
Spring
Spring Cloud
Spring Boot
JavaEE
JMS
JPA
Maven

Certifications

Certified Vaadin 14 Developer, 2023

Vaadin Ltd.
Implementing DDD, CQRS and Event Sourcing with Axon, 2023

AxonIQ
Introduction to DDD, CQRS and Event Sourcing, 2023

AxonIQ
Specialization: Parallel, Concurrent and Distributed Programming in Java, 2022

Rice University
Specialization: PostgreSQL for Everybody, 2022

University of Michigan
Oracle Certified Java SE 17 Developer, 2022

Oracle
VMWare Spring professional, 2021

Other
Testing Spring Boot Applications Primer, 2021

Other
Open Source Licensing Basics for Software Developers LFC191, 2021

LinuxFoundation
Oracle Certified Java SE 11 Developer, 2021

Oracle
Redis Certified Developer, 2020

Redislabs
AWS Solution Architect Professional, 2019

Amazon Web Services
Reactive Architecture, 2018

Lightbend, Inc. / IBM
Domain Driven Design, 2018

Lightbend, Inc.
Reactive Microservices, 2018

Lightbend, Inc.
Kotlin for Java Developers, 2018

Jetbrains
AWS Solution Architect / Certified Developer Associate, 2016

Amazon Web Services
Functional Programming in Haskell, 2016

University of Glasgow
MongoDB Certified Developer/DBA, 2014

MongoDB
Functional Programming Principles / Program Design in Scala, 2013

Coursera
Principles of Reactive Programming, 2013

Coursera
Oracle certified Professional, 2012

Oracle
Certified Scrum Master, 2009

Scrum alliance
Sun certified Enterprise Architect, 2008

Sun Microsystem
Sun certified Developer Web/Business-Component / Web Services / J2ME Developer, 2006

Sun Microsystems
MySQL Core, 2002

MySQL AB

all certifications

Skills

Software Architecture

Strategic IT Management

Coaching / Mentoring

Micro-Design

Java

Amazon Web Services

Biography

July 2019 – Present

Leipzig, Germany

Coding Architect, Lead Engineer

PRISMA European Capacity Platform GmbH

Technical leadership role regarding Software-Development and Architecture. Based on AWS, we converted 10 years worth of transactional data to Events and setup a streaming Event Sourcing infrastructure as a basis for new and refactored (truly) independent services. Architectural work is focussed on DDD and usecase driven, so that the development can scale across internal and external teams.

Introduced TDD & DevOps Culture and EventSourcing / CQRS as central architectural concepts. I enjoy consulting and mentoring of teams and individuals within and outside of the company.

Technologies used:

Java, Kotlin
Spring Boot/Cloud
EventSourcing, Cryptoshredding
REST API Design and Management
Postgres, Redis, Lucene
Amazon Web Services

May 2013 – June 2019

Leipzig, Germany

Coding Architect, Head of Engineering

Mercateo Group

Technical leadership regarding Software-Development and Architecture with a hint of Operations. Converted huge codebase to CI/CD infrastructure, introduced TDD Culture, introduced EventSourcing / CQRS as central architectural concepts. Long-term coaching of teams and individuals is a significant and exciting part of the job.

As a member of the IT-Management board also involved in agile transformation, introduction of DevOps culture and the shift to Cloud-Native Product delivery.

Technologies used:

Java, JavaScript
Spring Boot/Cloud, Netflix OSS
Messaging, REST, API Design and Management
Postgres, Redis, Cassandra, Solr, ElasticSearch
Amazon Web Services
Stream processing, Event Driven Architecture, EventSourcing

September 2007 – April 2013

Freiburg im Breisgau, Germany

CTO

THOMAS DAILY GmbH

Technical leadership role on Software Development as well as IT Operations Department. Introducing agile Methodology, introducing automation all over the development cycle. Refactoring from monolithic J2EE Application to message driven subsystems. Created and maintained several internal systems and frameworks, i.e. for quality control and monitoring.

Technologies used:

Java, JavaEE
Resin, JBoss
Apache Wicket, EJB
HornetQ, ActiveMQ
apache HTTP Server, pound
Linux
PostgreSQL, MongoDB, CouchDB, MemCached

January 2000 – August 2007

Essen, Germany

Head of Software Development

Image Transfer GmbH

Created, customized, maintained a full ECMS solution delivered to ~120 clients. Introduced agile methodology, created program for inhouse training.

Work was done in Java, J2EE (as little as necessary) with some grain of message-orientation, high-availability, load-balancing, mutli-level caching & horizontal scalability.

Technologies used:

Java, J2EE, JavaEE
Resin, JBoss, Tomcat
JSP, Taglibs, JSF, Seam
ActiveMQ
apache HTTP Server, pound
Linux
Oracle, PostgreSQL, MySQL

January 1998 – December 1999

Essen, Germany

Partner, Software Architect

72dpi

Developed a framework for realization of dynamic Web Applications from public facing marketing-websites to internal server control applications for the public sector.

Technologies used:

Java
Servlets, JSP, Taglib
Resin, Tomcat
apache HTTP Server
Linux
MySQL

February 1995 – September 1998

Dortmund, Germany

Software Developer

University of Dortmund

Different software development and administration jobs in several departments. Most of the work was done in Java using Informix as a Database.

Technologies used:

Java
Servlets
Resin
apache HTTP Server
Linux
Informix

January 1992 – August 1995

Büren, Germany

System Programmer Embedded/Windows

IST-Büren

Created Windows Desktop Software for supporting the loading process of (industrial) Batteries, as well as firmware for monitoring devices developed at AEG.

Technologies used: