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Karl-Heinz Gille-DevOps Engineer / JEE Developer

Karl-Heinz Gille - DevOps Engineer / JEE Developer - profile avatar
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Karlsruhe, Germany

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Experience

Sep 2023 - Dec 2024

DevOps Engineer / JEE Developer

EnBW

Position summary
DevOps Engineer / JEE Developer at EnBW
Industries
Energy
Business areas
Information Technology
  • Further development of an existing microservice architecture (REST) for asset model management and runtime environment in the cloud.

  • Java development (BE) in the SCRUM team.

  • Java (Spring Boot/Security)

  • PostgreSQL

  • Docker

  • AWS Services (Lambda, Cognito, ECS, SQS)

  • IntelliJ

May 2022 - May 2023

DevOps Engineer / JEE Developer

HZD – Hessische Zentrale für Digitalisierung

Position summary
DevOps Engineer / JEE Developer at HZD – Hessische Zentrale für Digitalisierung
Industries
Government and Administration
Business areas
Information Technology
  • Development of REST-based microservices for implementing public services/citizen services as part of the OZG.

  • Java development (BE) in the SCRUM team.

  • Infrastructure maintenance of GitLab and Kubernetes.

  • Java (Quarkus)

  • GitLab

  • Oracle

  • Kubernetes / Docker

  • KeyCloak (OAuth2)

  • Eclipse, Swagger, Postman

Sep 2018 - Nov 2021

DevOps Engineer / JEE Developer

EnBW

Position summary
DevOps Engineer / JEE Developer at EnBW
Industries
Energy
Business areas
Information Technology
  • Web application for managing power plants (assets) and their schedules, document-oriented time series and master data management as a REST service.

  • Java development (backend/frontend) in the SCRUM team.

  • Setup and administration of Kubernetes clusters.

  • MongoDB administration.

  • Pipeline development with Jenkins CI/CD.

  • Java (Spring Boot/Data/REST/Security, Bootstrap, Thymeleaf, JUnit)

  • MongoDB

  • Jenkins CI/CD

  • Git

  • Maven

  • Kubernetes / Docker

  • Eclipse

Jun 2018 - Aug 2018

DevOps Engineer / JEE Developer

EnBW

Position summary
DevOps Engineer / JEE Developer at EnBW
Industries
Energy
Business areas
Information Technology
  • Development of a reactive CRUD prototype in a microservice architecture to help decide on technology for a web portal.

  • Java development in the SCRUM team.

  • Setup and administration of Kubernetes clusters.

  • Java (Spring Boot/Reactive Web/Data Reactive)

  • MongoDB

  • React

  • Kubernetes / Docker

  • Kafka

Jul 2017 - May 2018

DevOps Engineer / JEE Developer

EnBW

Position summary
DevOps Engineer / JEE Developer at EnBW
Industries
Energy
Utilities
Business areas
Information Technology
  • Generation and deployment of current power plant reports in the cloud (AWS) as a static website.

  • Java development in the SCRUM team.

  • Infrastructure setup and administration in AWS.

  • Java SE

  • Amazon S3

  • AWS Lambda

  • Amazon DynamoDB

  • AWS API Gateway

  • Serverless Framework

  • AWS CodeCommit

  • IAM Roles and Policy

  • Eclipse

Feb 2015 - Jun 2017

DevOps Engineer / JEE-Developer

EnBW

Position summary
DevOps Engineer / JEE-Developer at EnBW
Industries
Energy
Business areas
Information Technology
  • Energy price management with a graphical user interface (fat client) and Oracle as the persistence layer.

  • Java development (backend/frontend) in a SCRUM team.

  • Oracle administration.

  • Java (Spring, Swing, JPA, JUnit)

  • Oracle 11g

  • PL-SQL (scripts, stored procedures)

  • SVN

  • Maven

  • Jenkins

  • Eclipse

  • Bash

Jan 2014 - Dec 2014

DevOps Engineer / JEE-Developer

Daimler

Position summary
DevOps Engineer / JEE-Developer at Daimler
Industries
Information Technology
Business areas
Information Technology
Product Development
  • Retrieval of worldwide network node data every 15 minutes.

  • Persistence and graphical presentation of the data in a fat client.

  • Java development.

  • Oracle administration.

  • Java (Spring, Swing, JPA, JUnit)

  • Oracle 11g

  • IBM WebSphere

  • SVN

  • Maven

  • Jenkins

  • Eclipse

May 2012 - Nov 2013

Java-Developer

Command AG

Position summary
Java-Developer at Command AG
Industries
Information Technology
Business areas
Information Technology
Product Development
  • Development of a framework for XML-based, dynamic building of Swing components for an ERP front end.

  • Java development.

  • Java (Spring, Swing, RMI)

  • SVN

  • Maven

  • Jenkins

  • Eclipse

May 2011 - Feb 2012

Java-Developer

HPV

Position summary
Java-Developer at HPV
Industries
Insurance
Business areas
Information Technology
Product Development
  • Evaluation of a JSF component framework and implementation of a CRUD prototype for an insurance customer portal.

  • Java (JSF2)

  • SVN

  • Maven

  • Jenkins

  • Eclipse

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Energy, Information Technology, Government and Administration, Utilities, and Insurance.

Energy
Information Technology
Government and Administration
Utilities
Insurance
Profile match chart

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology and Product Development.

Information Technology
Product Development
Profile match chart

Skills

Operating Systems:

  • Microsoft Windows
  • Linux (Ubuntu, Suse, Hp-Ux)

Programming Languages:

  • Java (J2ee, Quarkus, Spring Boot, Thymeleaf, Jsf)
  • Bash
  • Pl-Sql
  • Python (Aws Lambda)

Databases:

  • Mongodb
  • Oracle
  • Postgresql

Infrastructure And Services:

  • Kubernetes
  • Docker
  • Aws

Standard Products And Tools:

  • Eclipse
  • Intellij
  • Swagger
  • Postman
  • Jenkins Ci/Cd
  • Gitlab
  • Maven
  • Junit
  • Sonarqube
  • Git
  • Keycloak
  • Kafka
  • Ansible
  • Argocd
  • Longhorn

Methods:

  • Scrum
  • Kanban

Languages

German
Native
English
Advanced
Spanish
Elementary

Education

TH Karlsruhe

Dipl.-W.-Engineer, Computer Science · Computer Science · Karlsruhe, Germany

Certifications & licenses

Statistics

Experience

Total positions 9
Experience in Energy 8 y
Avg length 1 y 4 m
Longest experience 3 y 2 m

Expertise

Recent roles DevOps Engineer / JEE Developer, DevOps Engineer / JEE-Developer, Java-Developer
Main industries Energy, Information Technology, Government and Administration
Main business areas Information Technology, Product Development

Qualifications

Highest degree Master
Certifications earned 3

Profile

Member since
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Frequently asked questions

Have questions? Find more information here.

Karl-Heinz is based in Karlsruhe, Germany.

Karl-Heinz speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).

Karl-Heinz has at least 12 years of experience. During this time, Karl-Heinz has worked in at least 3 different roles and for 5 different companies. The average length of individual experience is 1 year and 4 months. Note that Karl-Heinz may not have shared all experience and actually has more experience.

Based on recent experience, Karl-Heinz would be well-suited for roles such as: DevOps Engineer / JEE Developer, DevOps Engineer / JEE-Developer, Java-Developer.

Karl-Heinz's most recent position is DevOps Engineer / JEE Developer at EnBW.

In recent years, Karl-Heinz has worked for EnBW and HZD – Hessische Zentrale für Digitalisierung.

Karl-Heinz is most experienced in industries like Energy, Information Technology, and Government and Administration. Karl-Heinz also has some experience in Utilities and Insurance.

Karl-Heinz is most experienced in business areas like Information Technology and Product Development.

Karl-Heinz has recently worked in industries like Energy and Government and Administration.

Karl-Heinz has recently worked in business areas like Information Technology.

Karl-Heinz holds a Master in Computer Science from TH Karlsruhe.

Karl-Heinz has 3 certificates. These include: AWS Certified Developer Associate, HP-UX System Administrator, and iSAQ – Certified Professional for Software Architecture.

The availability of Karl-Heinz needs to be confirmed.

Daily rate distribution

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<€480 €480-​640 €640-​800 €800-​960 €960-​1120 €1120+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Daily rate avg. 782 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 800 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.