Ulrich Cech - Java Architect/Developer

Q: Where is Ulrich based?

Ulrich is based in Ratzeburg, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Ulrich speak?

Ulrich speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Ulrich have?

Ulrich has at least 23 years of experience. During this time, Ulrich has worked in at least 10 different roles and for 15 different companies . The average length of individual experience is 2 years and 6 months . Note that Ulrich may not have shared all experience and actually has more experience.

Q: What is Ulrich's latest experience?

Ulrich's most recent position is Java Architect/Developer – Freelancer at DHL/DP – Rentenservice .

Q: What companies has Ulrich worked for in recent years?

In recent years, Ulrich has worked for DHL/DP – Rentenservice , DB Fernverkehr AG , mecom - Medien-Communikations-GmbH , Bytecookie UG , and pinnwand.online .

Q: Which industries is Ulrich most experienced in?

Ulrich is most experienced in industries like Information Technology (IT) , Banking and Finance , Media, and Entertainment and Publishing . Ulrich also has some experience in Transportation and Logistics and Advertising .

Q: Which business areas is Ulrich most experienced in?

Ulrich is most experienced in business areas like Information Technology (IT) , Product Development , and Operations .

Q: Which industries has Ulrich worked in recently?

Ulrich has recently worked in industries like Information Technology (IT) , Banking and Finance , and Transportation and Logistics .

Q: Which business areas has Ulrich worked in recently?

Ulrich has recently worked in business areas like Information Technology (IT) , Product Development , and Operations .

Recommended expert

Ratzeburg, Germany

Experience

Jan 2024 - Present

2 years 2 months

Java Architect/Developer – Freelancer

DHL/DP – Rentenservice

Implementation of a Java service (daemon) as part of the automated processing of death notifications
Technologies used: Java17, SpringBoot, Hexagonal Architecture, REST API, Oracle, Maven, SonarQube, FindBugs, Checkstyle

Oct 2023 - Present

2 years 5 months

Java Architect/Developer – Temp Assignment

DB Fernverkehr AG

Further development of the ticket booking flow, database optimizations
Technologies used: Java17, SpringBoot, microservice architecture, REST API, OpenAPI, PostgreSQL, Docker + Kubernetes, AWS environment, Gitlab CI, Maven, SonarQube, FindBugs, Checkstyle, OWASP + Trivy, WhiteSource, Renovate Bot

Aug 2021 - Aug 2023

2 years 1 month

Consultant/Java Architect – Freelancer

mecom - Medien-Communikations-GmbH

Various IT consulting and development tasks (MongoDB optimization, security topics (DDoS defense, BSI compliance, etc.), integration of Bean Validation for standardized checks, code reviews, and support in developing the new architecture for the alert platform)
Technologies used: Java17, SpringBoot, microservice architecture, REST API, Swagger API documentation, MongoDB, Docker + Kubernetes, Git/Gitlab CI, Maven, Jenkins CI, SonarQube, FindBugs, Checkstyle, OWASP + Trivy, JUnit, Mockito, JIRA, Confluence, Scrum

Feb 2021 - Sep 2023

2 years 8 months

Interim CTO, Software Architect/Developer/DevOps

Bytecookie UG

Full design and implementation of a startup's software platform (80,000 LoC)
Messaging system; rating system; recommendation system; custom video conferencing implementation for 1:1 video chats and group rooms; fully automated build/release pipelines
Technologies used: Java17, JakartaEE 10, REST API, AWS environment, PostgreSQL, Maven, JUnit, Mockito, OpenAPI, Sonargraph

Dec 2019 - Jan 2022

2 years 2 months

Founder

pinnwand.online

Full application design ("from idea to finished product")
Technologies used: JakartaEE 8, Java11, Payara 5/6, EJB/CDI, JPA, JSF, JavaScript, HTML/CSS, Primefaces, PostgreSQL, Gitlab CI, Docker, Maven, Bitbucket, SonarQube, FindBugs, Checkstyle, OWASP, JUnit, Mockito, PowerMock, Sonargraph, AWS ECS, Terraform, AWS Translate, Stripe (payment provider)

Oct 2019 - Mar 2023

3 years 6 months

Java Architect/Developer – Freelancer

LogPay Financial Services GmbH

Integration of Amazon Pay (Billing Agreement)
Integration of Paydirekt (oneClick)
New UI design for checkout pages
Technologies used: JavaEE 7, Java8, Wildfly, EJB/CDI, JPA, JSF, JavaScript, HTML/CSS, MySQL, SVN, Amazon Pay API, Paydirekt API, Maven, JUnit, Mockito, FindBugs, Checkstyle

Aug 2019 - Dec 2023

4 years 5 months

Java Architect/Developer – Freelancer

Aareal FirstFinancial Solutions AG

Further development of a deposit management software after company acquisition
Migration from Spring to Spring-Boot
Technologies used: Java8, Spring/Spring-Boot, Jetty, JSP, JavaScript, HTML/CSS, microservice architecture, REST API, MariaDB, Gitlab, Maven, JUnit, Mockito, JIRA, Confluence, FindBugs, Checkstyle, Sonargraph, Scrum

Jun 2018 - Oct 2020

2 years 5 months

Java Architect/Developer – Freelancer

Cubic Transportation Systems GmbH

Integration of payment service providers in a microservice architecture
Optimization of the Docker system architecture/environment
Redesign of the central purchase process of the online platform
Technologies used: Java11, Spring-Boot, Jetty/Tomcat, microservice architecture, REST API, Gitlab-CI, Docker, Kubernetes, Maven, JUnit, Mockito, JIRA, Confluence, FindBugs, Checkstyle, Scrum

May 2017 - Jan 2020

2 years 9 months

Founder of open source project

Lottoritter

Complete application design ("from idea to finished product")
Source code available on GitHub
Technologies used: JavaEE7/8, EJB/CDI, Payara5, REST API, MongoDB, MongoDB-Morphia, JSF, JavaScript, HTML/CSS, OAuth2, Docker, Maven, JUnit, Mockito, FindBugs, Checkstyle, SonarQube

Sep 2016 - May 2018

1 year 9 months

Architect and Java Developer

Deposit Solutions / Dt. Kautionspartner GmbH

Functional enhancement of a deposit management software
Design of a complete refactoring of the application
Functional enhancement of a tenant portal
Administration of the tenant portal on Amazon AWS
Redesign and implementation of a microservice for routing account transactions between different banks and target systems
Technologies used: Java7/8, Spring/Spring-Boot, Jetty, DropWizard, JSP, JSF, JavaScript, HTML/CSS, microservice architecture, REST API, MariaDB, Gitlab, Maven, JUnit, Mockito, FindBugs, Checkstyle, JIRA, Confluence, Amazon AWS, Scrum, OKR

Oct 2015 - Aug 2016

11 months

Architect and Java-Developer

bitmanager-media GmbH

Introduced Java EE 7
Designed and implemented a Java EE web application to replace and extend the functionality of a media industry IT system
Implemented service/change requests
Technologies Used: Java EE 7, JPA/Hibernate, EJB/CDI, JSF, WildFly, Oracle DB, JavaScript, HTML/CSS, Bootstrap, Maven, Git, JUnit, Mockito

Jun 2014 - Sep 2015

1 year 4 months

Senior Java-Developer

dreamIT GmbH

Architected and implemented a B2B REST API for integration with partner systems
Implemented and integrated new payment providers
Extended the existing product platform
Migrated from GlassFish 3.1.2 to Payara 4.1 (Java EE 6 to Java EE 7)
Optimized database access (MongoDB)
Technologies Used: Java EE 6/7, GlassFish/Payara, MongoDB, MongoDB-Morphia, JSF, JavaScript, HTML/CSS, PrimeFaces, Maven, Git, JUnit, Mockito, SonarQube

Jun 2013 - May 2014

1 year

Senior Java-Developer

Smaato Inc.

Architected and implemented a self-learning module for mobile device detection based on the HTTP user agent
Implemented a MapReduce application to analyze openRTB auctions
Implemented a MapReduce application to process various log file types and import the calculated business metrics into a visualization application
Technologies Used: Java, Spring, Tomcat, Apache Hadoop, microservice architecture, Amazon AWS, Maven, JUnit, Mockito

Nov 2006 - May 2013

6 years 7 months

Senior Java-Developer

AEB GmbH

Architected and implemented a central archiving software for all in-house specialist applications
Architected and implemented an SAP RFC/IDoc-to-web service converter
Architected and implemented a universally usable SAP RFC server component
Partly designed and partly implemented a new communication software for all in-house business applications
Technologies Used: Java, JBoss, Tomcat, PostgreSQL, Sybase, Oracle DB, Hibernate, SOAP web services, NoSQL, Apache Jackrabbit, Lucene, SAP JCO

Jul 2003 - Oct 2006

3 years 4 months

Java-Developer

AFI GmbH

Architected and implemented a web application as a frontend for business SAP workflows
Architected and implemented a centrally used module to communicate with the Saperion archive system
Architected and implemented a support research application for the entire message traffic with the German customs
Planned and implemented a file-based load balancing/dispatching software for the data center
Responsible for complete system maintenance of customs communication via the data center; extended the existing communication software
Technologies Used: Java, Tomcat, Sun Application Server, JSF, Sybase, PostgreSQL, HSQLDB, Hibernate, SAP JCO, EDIFACT

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (19.5 years), Banking and Finance (6 years), Media and Entertainment (3 years), Transportation (2.5 years), and Advertising (1 year).

Information Technology

Banking and Finance

Media and Entertainment

Transportation

Advertising

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (22.5 years), Product Development (21.5 years), and Operations (2.5 years).

Information Technology

Product Development

Operations

Skills

Languages

Java
Kotlin

Java Technologies

Jakartaee
Javaee
Ejb
Cdi
Jax-rs
Rest
Javasecurity (Soteria)
Jaxb
Jdbc
Jsf
Jsp
Oauth
Jndi
Rmi
Soap
Servlets
Awt
Swing
Eclipsercp
Applets
Networking
Java Mail
Jai
Sap-jco
Apache Jackrabbit
Lucene
Apache Hadoop

Frameworks

Jakartaee
Javaee
Spring
Springboot
Jpa
Eclipselink
Mongodb-morphia
Hibernate
Primefaces
Springmvc
Dropwizard

Ide/java Tools

Intellij Idea
Netbeans
Eclipse
Atlassian Tools Suite

Xml/json

Jaxp
Jsonb/jsonp
Jackson
Jdom
Sax

Architecture Tools

Sonargraph

Quality Tools

Sonarqube
Sonarlint
Trivy
Junit
Mockito
Powermock

Databases

Mongodb
Postgresql
Mysql
Sybase
Oracle

Build Tools

Maven
Gitlab Ci
Bitbucket Ci
Hudson/jenkins
Teamcity
Bamboo
Ant

Methods, Ooa & Ood

Domain-driven Design (Ddd)
Microservices
Hexagonal Architecture
Object-oriented Software Design
Design And Architecture Patterns
Agile Software Development
Test-driven Development (Junit, Test-first Approach)
Uml
Code/architecture Reviews
Scrum
Kanban
Okr
Xp
Older Development Process Methods (E.g., Waterfall With Requirements Spec)

Container Platform

Docker
Docker Compose
Kubernetes

Cloud Platform

Amazon Aws
Terraform

Web Development

Html
Css
Javascript
React (Basics)

Web/application Server

Payara 5/6
Glassfish
Jboss
Wildfly
Apache Tomcat
Jetty

Mobile Development

Android Kotlin/java
Swift (Basics)

Protocols

Http
Https
Tcp/ip
Ftp
Openft
Sockets

Os X
Linux
Windows

Version Control

Git
Mercurial
Subversion
Cvs

Languages

German

Native

English

Advanced

Education

Oct 2000 - Jun 2003

Academy for Data Processing Böblingen

State Certified Computer Scientist, graduated with honors · Computer Science · Böblingen, Germany · 1.4

Oct 1994 - Jun 2000

Georg-August University Göttingen

Medicine · Göttingen, Germany

Oct 1987 - Jun 1994

Felix Klein Gymnasium

General University Entrance Qualification · Göttingen, Germany · 2.0

Certifications & licenses

iSAQB CPSA-F Certificate

Android Kotlin Developer

MongoDB Certified Developer

Sun Certified Programmer For The Java 2 Platform, Standard Edition 5.0

IBM Internet Trainer Training (Advanced and Specialized Course)

IBM Internet Trainer Training (Starter Course)

Profile

Created

December 2023

Last Update

September 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Ulrich based?

Ulrich is based in Ratzeburg, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Ulrich speak?

Ulrich speaks the following languages: German (Native), English (Advanced).

How many years of experience does Ulrich have?

Ulrich has at least 23 years of experience. During this time, Ulrich has worked in at least 10 different roles and for 15 different companies. The average length of individual experience is 2 years and 6 months. Note that Ulrich may not have shared all experience and actually has more experience.

What roles would Ulrich be best suited for?

Based on recent experience, Ulrich would be well-suited for roles such as: Java Architect/Developer – Freelancer, Java Architect/Developer – Temp Assignment, Consultant/Java Architect – Freelancer.

What is Ulrich's latest experience?

Ulrich's most recent position is Java Architect/Developer – Freelancer at DHL/DP – Rentenservice.

What companies has Ulrich worked for in recent years?

In recent years, Ulrich has worked for DHL/DP – Rentenservice, DB Fernverkehr AG, mecom - Medien-Communikations-GmbH, Bytecookie UG, and pinnwand.online.

Which industries is Ulrich most experienced in?

Ulrich is most experienced in industries like Information Technology (IT), Banking and Finance, Media, and Entertainment and Publishing. Ulrich also has some experience in Transportation and Logistics and Advertising.

Which business areas is Ulrich most experienced in?

Ulrich is most experienced in business areas like Information Technology (IT), Product Development, and Operations.

Which industries has Ulrich worked in recently?

Ulrich has recently worked in industries like Information Technology (IT), Banking and Finance, and Transportation and Logistics.

Which business areas has Ulrich worked in recently?

Ulrich has recently worked in business areas like Information Technology (IT), Product Development, and Operations.

What is Ulrich's education?

Ulrich holds a Bachelor in Computer Science from Academy for Data Processing Böblingen and a Bachelor in Medicine from Georg-August University Göttingen.

Does Ulrich have any certificates?

Ulrich has 6 certificates. Among them, these include: iSAQB CPSA-F Certificate, Android Kotlin Developer, and MongoDB Certified Developer.

What is the availability of Ulrich?

Ulrich is immediately available full-time for suitable projects.

What is the rate of Ulrich?

Ulrich's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.