Jacqueline K.-Senior Java/Kotlin Fullstack Cloud DevOps
Check rate
Experience
OTTO
- Design, development, and monitoring of microservices
- Migration of functions from a monolithic system to various microservices
- Design and implementation of new microservices (backend and frontend)
- Setup and maintenance of a CI/CD pipeline (GitHub Actions)
- Configuration of the cloud infrastructure with AWS CDK and Terraform
- Design and implementation of event-driven communication using AWS SNS/SQS and Apache Kafka
- Ensuring code quality through Test Driven Development (TDD), static code analysis, and Clean Code
HUK Coburg
- Creation of microservices to replace the existing claims reporting system
- Migration of services to the OpenShift platform using Test Driven Development (TDD)
- Contributed as a team member in an agile Scrum team
- Applied Clean Code principles and continuous integration to ensure software quality
AXA
- Further development of the customer portal, focusing on the design and creation of Self-Contained Services
- Maintenance and extension of the existing service architecture
- Contributed as a team member in the Scrum team to integrate self-services
- Ensured software quality through Behavior Driven Development (BDD) and Test Driven Development (TDD)
- Created APIs for use by another team in app development
- Configured the deployment process with AWS CloudFormation
- Monitored services using ELK Stack, Grafana, and Prometheus
REWE digital
- Further development of the customer portal
- Replaced a monolith with several microservices using Kotlin and Java (backend and frontend)
- Maintenance and extension of the existing service architecture
- Designed and implemented event-driven communication with Apache Kafka
- Integrated public APIs from a payment service provider
- Ensured software quality through Test Driven Development (TDD) and Domain Driven Design (DDD)
- Continuous Integration and Continuous Delivery
- Monitored services using ELK Stack, Grafana, Prometheus, and a custom monitoring service
WDR mediagroup
- Adapted and extended the Sophora content management system (Subshell) to meet customer requirements
- Extended a media database with a graphical web interface for managing audio, video, and images
- Created documentation (concepts, technical documentation, user manuals, and operations manuals)
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Retail, Insurance, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Quality Assurance.
Skills
Programming Languages
- Java (Java Ee, Java Se, Java From Version 5, Jsf 2.0, Jsp)
- Kotlin
- Groovy
- Typescript/Javascript (Svelte, Vue, React, Node.Js, Jquery, Mootools, Ajax, Grunt, Bower)
Frameworks, Technologies
- Microservices
- Self Contained Services
- Spring (Framework, Boot, Mvc, Data, Security, Integration)
- Micronaut
- Web Services (Rest, Soap, Apache Cxf, Jax-Ws)
- Aws Cloud
- Apache Kafka
- Docker
- Jetty
- Apache Tomcat
- Doctoolchain
- Java Server Faces (Primefaces)
- Apache Solr
- Jaxb
- Quartz
- Velocity
- Handlebars
- Freemarker
Methods
- Domain Driven Design (Ddd)
- Behavior Driven Development (Bdd)
- Test Driven Development (Tdd)
- Continuous Integration (Ci)
- Continuous Delivery (Cd)
- Devops
- Scrum
- Kanban
- Clean Code
Logging, Monitoring
- Elk Stack
- Grafana
- Prometheus
Standards
- Openapi
- Json
- Asciidoc
- Markdown
- Xml
- Xsd
- Xsl
- Uml
- Sql
- Html
- Css
Databases
- Jpa
- Hibernate
- Mongodb
- Dynamodb
- Redis
- Postgres
- Mysql
- Oracle
- Couchdb
- Jdbc
CMS
- Sophora
- Joomla
- Wordpress
- Teamsite
- Jamstack (Jekyll)
Testing
- Junit 4/5
- Testng
- Spock
- Geb
- Htmlunit
- Jsfunit
- Thucydides
- Mockito
- Powermock
- Mockk
- Pact
- Cucumber
- Mutation Testing (Pitest, Stryker)
- Soapui
- Postman
- Insomnia
Build, Deployment
- Github
- Hudson/Jenkins
- Sonarqube
- Terraform
- Openshift
- Aws Cloud
Project Environment
- Git
- Svn
- Intellij
- Eclipse
- Spring Tool Suite
- Gradle
- Maven
- Jira
- Confluence
- Bamboo
- Stash
- Consul
- Openproject
- Visual Paradigm
- Puppet
- Apache Ant
- Linux
- Windows
- Mac
Languages
Certifications & licenses
Principles Of Reactive Architecture
Lightbend/IBM
Sophora Certified Administrator (SOCAD)
Sophora
Sophora Certified Delivery Developer (SOCDD)
Sophora
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Jacqueline is based in Cologne, Germany and can operate in on-site, hybrid, and remote work models.
Jacqueline speaks the following languages: German (Native), English (Advanced).
Jacqueline has at least 10 years of experience. During this time, Jacqueline has worked and for 5 different companies. The average length of individual experience is 2 years and 11 months. Note that Jacqueline may not have shared all experience and actually has more experience.
In recent years, Jacqueline has worked for OTTO and HUK Coburg.
Jacqueline is most experienced in industries like Retail, Insurance, and Media and Entertainment.
Jacqueline is most experienced in business areas like Information Technology, Product Development, and Quality Assurance.
Jacqueline has recently worked in industries like Retail and Insurance.
Jacqueline has recently worked in business areas like Information Technology and Quality Assurance.
Jacqueline has 4 certificates. Among them, these include: Principles Of Reactive Architecture, Oracle Certified Professional Java SE 6 Programmer, and Sophora Certified Administrator (SOCAD).
The availability of Jacqueline needs to be confirmed.
Daily rate distribution
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.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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 15 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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