Allal Kharaz-Java Senior Full Stack Developer
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Experience
Java Senior Full Stack Developer
Insurance ÖRAG
- Further development of a policy administration system (contract/claims) for the legal expenses insurer ÖRAG.
- My role: Senior Software Developer.
- The team consists of 12 developers.
- Technologies used: Java 8/21, Java EE, Quarkus, WebLogic, JPA, RabbitMQ, JTA, CI, CD, Jenkins, DB2, Maven, Jenkins, GIT (bitbucket) later GitLab, Junit, Elasticsearch, Mockito, Jira, SonarQube, Scrum, React, Workflow
- Migration and modernization of legacy systems: rewrote C and C++ code in Java to improve maintainability, scalability, and performance. Refactored Python into Java, including optimization and integration into modern architectures.
- Study on the use of AI (Codex) for implementing a Java feature. The goal is to compare the time spent and productivity of AI-supported development with a classic implementation by a developer. The results should show how strongly the use of AI affects development time and efficiency.
- Development of the following tariff calculators for the years 2024/2026: private, companies, doctors, farmers, owner-occupied G + H, landlords, traffic, club, top managers, sales representatives, special criminal law, savings bank, municipal, BayGT, doctors, Dehoga
Java EE / Microservices Senior Software Developer / Consultant
Insurance HUK
- Development of various tariff calculators as microservices for Huk-Coburg and clients (huk-de, huk24, VRK)
- Backend development in a team with 8 developers and 4 domain experts
- Implementation and enhancement of tariff calculators: motor third-party liability, household contents, private liability, accident, residential building, animal owner liability, house and property owner liability, trailer & caravan insurance, moped insurance
- Migration of the services from Gradle to Maven and from OpenShift 3 to OpenShift 4
- Development of an action service as a Quarkus application and deployment in AWS
- Technologies used: Java 8/11/17, Java EE, Microservices, Quarkus, OpenAPI, RESTful, Hazelcast, AWS (Lambda, ALB, NLB, S3, DynamoDB, VPC, Route 53, API Gateway, WAF), Terraform, Elasticsearch, JAX-RS, Swagger, CI/CD, Maven, Gradle, Jenkins, GIT (Azure DevOps), IntelliJ, JUnit, Mockito, Jira, SonarQube, Scrum, OpenShift 3/4, Helm Charts, Splunk, Docker, SOAP, Open Liberty
Java Senior Full Stack Developer
Insurance ÖRAG
- Further development of a policy administration system for the legal expenses insurer ÖRAG in a team with 12 developers
- New development of an application for legal expenses insurance ÖRAG in a team with 4 developers
- Development of the following tariff calculators: private, companies, doctors, farmers, owner-occupied G + H, landlords, traffic, club, top managers, sales representatives, special criminal law, savings bank, municipal, BayGT, doctors, Dehoga
- Technologies used: Java 8, Java EE, WebLogic, JPA, JTA, CI/CD, Jenkins, DB2, Maven, GIT (Bitbucket), Eclipse, JUnit, Mockito, Jira, SonarQube, Scrum, Apache Wicket, Workflow, Spring Boot, Docker, Kubernetes, RESTful, MuleSoft ESB
Java EE Senior Software Developer / Consultant
Taxes/Tax
- New development of a country-by-country reporting application for multinational corporations from scratch in a team with 6 Java developers
- Software developer and software architect
- Technologies used: Java 8, Java EE, Eclipse MicroProfile, JBoss EAP 7.1, JSR 352 (Batch), JPA, JTA, CI/CD, Jenkins, Oracle DB, Maven, GIT, Eclipse, JUnit, Mockito, Jira, Redmine, SonarQube, Scrum, HA-Singleton, JSF, PrimeFaces, SFTP, Mail, CDI, Quartz, SOAP, Enterprise Job Scheduler, Liquibase, MapStruct, Cluster
Java Full Stack Developer
Bank/Car Dealership
- Development of RESTful web services in an existing microservice architecture and Spring Boot application in the car dealership business
- Implementation of features for financing, leasing calculation, and scoring in a team with 3 Java developers
- Technologies used: Java 8, Microservices, Spring Boot, Jersey, Jackson, JPA, Hibernate, CI/CD, Informix, Oracle DB, Git, Maven, Jenkins, Swagger, MagicDraw, UML, Eclipse, SoapUI, Jira, Confluence, Scrum
Senior Java Developer
Logistics/Retail
- Implementation of the logic integration services (LOIS) for an inventory management system in a team of 8 Java developers
- Implementation of modules: ATM order module, DPM disposition module, SDM master data module, BSM inventory data module, EKM purchasing cooperation module
- Technologies used: Java 8, JEE 6, JBoss-EAP 6.4.4, UML, JPA, JMS, JAXB, IBM MQ, RabbitMQ, Hibernate, DB2, IBM Host, SVN, Git, Maven, JUnit, Mockito, MagicDraw, Bizagi Modeler, Eclipse, Postman, Squirrel SQL, Jira, Confluence, SonarQube, QuickBuild, Citrix, SpiraTest, Scrum, CI/CD, Jenkins
Senior Java Consultant and Developer
Fashion/Retail
- Support for a customer in implementing an inventory management system (web application) in a team of 8 developers without a business department
- Design of the relational database model and implementation of the web application based on BPM
- Technologies used: Java 8, Spring Framework, Spring Security, Spring MVC, JSF, PrimeFaces, EclipseLink, JUnit, Apache JMeter, Apache Tomcat, IntelliJ IDEA, Oracle DB, Activiti BPMN, Maven, CI/CD, Atlassian Confluence, Atlassian JIRA Agile, Atlassian Bamboo, Scrum
Senior Java Consultant and Developer
Fashion/Retail
- Support for a customer in implementing an inventory management system (interfaces) in a team of 5 developers without a business department
- Design of the interfaces to SAP Retail and implementation based on SOAP
- Technologies used: Java 8, JEE, EJB 3.1, WildFly, EclipseLink, Maven, SAP, SOAP, Oracle DB, IntelliJ IDEA, Scrum, Atlassian Confluence, Atlassian JIRA Agile, Atlassian Bamboo, CI/CD
Senior Java Developer
IT Services Provider
- Design and development of a cloud solution (Hosted PBX) based on various hardware and software in a team of 9 developers
- Analysis, design and implementation
- Technologies used: Java, JEE, LDAP, DHCP, Men&Mice, OpenNMS, EJB, JMS, JBoss, ICEfaces, XML, JAXB, SAX, DOM, Ant, Eclipse, CVS, PostgreSQL, SOAP, Siemens PBX system OpenScape Voice, SIP, MS Office, CI/CD
Senior Java Developer
Telecommunications
- Development of a two-part domain management system for Deutsche Telekom (DTAG) in a team of 14 developers
- Implementation and testing:
- Domain Name Delegation Tool for authorization, contract identification, order processing and DNS provisioning process
- Web-based software for capturing and checking domain orders with order acceptance, validation, forwarding, confirmation, tracking and mail forwarding
- Technologies used: Java SE, JAXB, SAX, DOM, JBoss 4.2.2, Spring 2.5, JSF (Tomahawk), RichFaces, J2EE, Oracle, Hibernate, Maven, Eclipse
Developer
Retail
- Creation of a web application including an online shop with an extensive tree view, migrated Flash animations, a web service for financing inquiries, route planner, tabular product comparison, and JavaMail API for automated email sending (order confirmation)
- Implementation and testing
- Technologies used: Java SE, Eclipse, Hibernate, JSP, JSF, JUnit, CSS, HTML, JavaScript, ICEfaces, UML 2, SQL
Developer
Government Agency
- Development of an administrative platform for the Ministry of Schools and Continuing Education of the state of NRW to map budget-based position management and compare staffing and staffing needs
- Analysis, design, implementation, and testing
- Technologies used: ICEfaces, JasperReports, Ant, Java SE, Apache Tomcat, IBM WebSphere, Subversion, DB2
Architect and Developer
University
- Thesis: Design and development of a cosmetic surgery platform with JBoss Seam and MySQL
- Analysis, design, implementation, and testing
- Technologies used: JEE, JBoss Seam, JBoss AS, MySQL, Hibernate, JSF, Facelets, AJAX, Drools, Eclipse, Ant, Unix/Linux (Debian), UML
Developer
University
- Design and development of a shop system as part of an internship
- Analysis, design, implementation, and testing
- Technologies used: JSP, Servlets, Apache Tomcat, MySQL, JavaBeans
Developer
University
- Design and development of a travel connection system
- Analysis, design, implementation, and testing
- Technologies used: Java SE, jaxServlets, Apache Tomcat, MySQL, JavaBeans
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Insurance, Retail, Information Technology, Fashion, Telecommunication, and Education.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Supply Chain Management, Logistics, and Operations.
Summary
In IT: since 2004
Position: Senior Java Developer / Architect
Focus: Development of Java SE and JEE-based applications, front and backend, since 2004 (>20 years)
Industries: public authority, IT service provider, telecommunications, retail, fashion, taxes, tax, public services, insurance
Skills
Java, Java Se 6, 7, 8, 11, 17, 21, Jee, Quarkus, Openapi, Swagger, Microservices, Jboss-Eap, Uml, Ejb, Jpa, Jms, Jax-B, Ax-Rs, Ibm Mq, Rabbitmq, Hibernate, Eclipselink, Jdbc, Db2, Ibm Host, Svn, Git, Cvs, Xml, Maven, Jenkins, Junit, Mockito, Bpmn, Magicdraw, Bizagi Modeler, Eclipse, Postman, Zoc, Squirrel Sql, Jira, Confluence, Sonarqube, Sax, Dom, Quickbuild, Citrix, Spiratest, Web Services (Soap, Rest), Spring Framework, Spring Boot, Primefaces, Richfaces, Ajax, Ant, Birt, Css, Design Patterns, Cleancode, Drools, Facelets, Html/Xhtml, Icefaces, Javabeans, Javascript, Jboss Seam, Jsf, Jsp, Jta, Junit, Rmi, Servlets, Tomahawk, Apache Wicket, React, Next.Js, Docker, Kubernetes, Openshift, Devops, Elasticsearch, Mule, Aws, Ai, Codex, Claude, Knowledge Database (Rag), Llm, Piper, Fastapi
Unix / Linux, Windows
Oracle, Db2, Mysql, Postgresql, Mongodb, Informix
Jboss, Jboss-Eap, Wildfly, Weblogic, Open Liberty, Tomcat
Maven, Sap, Jenkins, Uml, Magicdraw, Bizagi Mod, Scrum
Languages
Education
University
Diploma in Computer Science · Computer Science
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Allal is based in Frechen, Germany.
Allal speaks the following languages: Arabic (Native), German (Advanced), English (Advanced), French (Advanced).
Allal has at least 20 years of experience. During this time, Allal has worked in at least 8 different roles and for 11 different companies. The average length of individual experience is 1 year and 4 months. Note that Allal may not have shared all experience and actually has more experience.
Based on recent experience, Allal would be well-suited for roles such as: Java Senior Full Stack Developer, Java EE / Microservices Senior Software Developer / Consultant, Java EE Senior Software Developer / Consultant.
Allal's most recent position is Java Senior Full Stack Developer at Insurance ÖRAG.
In recent years, Allal has worked for Insurance ÖRAG and Insurance HUK.
Allal is most experienced in industries like Insurance, Retail, and Information Technology. Allal also has some experience in Fashion, Education, and Telecommunication.
Allal is most experienced in business areas like Information Technology, Product Development, and Supply Chain Management. Allal also has some experience in Logistics and Operations.
Allal has recently worked in industries like Insurance.
Allal has recently worked in business areas like Information Technology and Product Development.
Allal holds a Master in Computer Science from University.
Allal is immediately available part-time for suitable projects.
Daily rate distribution
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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 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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