Eclipse IDE Experts in Cologne

Hooman B.

Fullstack Developer

Cologne

Last position:

Fullstack Developer at Möbel Roller GmbH

Further development of the existing e-commerce platform based on SAP Commerce (Hybris) to meet the growing demands of digital commerce.
Ensuring the scalability and performance of the backend, so the platform remained stable and efficient even under heavy user load.
Development and integration of new OCC REST APIs and services for modular extensions and flexible adjustments, to implement new features quickly.
Optimization of data flows and interfaces, which significantly improved platform efficiency and system performance.
Ensuring a maintainable and scalable code base by using Clean Code principles, proven design patterns, and a future-proof architecture.
Reduction of errors through extensive testing with JUnit, Mockito, and load tests with Gatling, supported by the introduction of automated test processes.
Improved system performance through targeted refactoring measures and efficient database queries, especially to handle peak loads.
Use of modern cloud and monitoring tools such as Kubernetes, Google Cloud Platform (GCP), and Grafana to ensure a stable and monitored infrastructure.
Clear improvement in efficiency, scalability, and reliability of the platform, which now meets the demands of a dynamic and growing e-commerce market.

Burhan D.

Experienced IT and AI Architect

Niederkassel

Last position:

Enterprise Architect & Solution Architect at DB Netz AG

With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.

Capture current architectures of existing systems as well as methodical consulting and development of target architectures
Deepen and maintain the building plan / target IT landscape
Implement technical architecture concepts & architecture descriptions
Implement migration concepts for updating and further developing the platform and information systems
Assess submitted improvement suggestions as part of the project
Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
Create a compatibility matrix of the components in use and compare dependencies of specific versions
Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
Advise the Release Train Engineer / Project Manager in identifying project risks
Advise the System Architect Engineers in steering the implementation of the concept
Implement the IT concept
Document the infrastructure

Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot

Christoph S.

Test Manager

Cologne

Last position:

Test Manager at Logistics

Coordination and planning, execution, documentation, and analysis of test cases
Development of test concepts considering best practices (e.g., test pyramid) with a focus on reliable, automatable test runs
Implementation and maintenance of test cases according to the test concepts
Technologies: Citrix Workspace, Shopify, Jira, Xray, MS Teams, MS SharePoint, Confluence, MS Office 365

Alexander K.

Senior QA Engineer | Quality Management | Test Automation | AI & LLM Testing

Kerpen

Last position:

Software Tester at Buhl Tax Service GmbH

AI-assisted creation of test cases and test data
Creation of test cases based on requirements
Execution of manual tests
Defect documentation, retesting and tracking

Technologies & Tools: SCRUM, Jira, Confluence, Zephyr Scale

Rainer L.

Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer

Cologne

Last position:

Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse

Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
As-is analysis
Evaluation of Redgate Flyway functionality
Concept creation
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Skills: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases

Stefan M.

Installation Portal Server and Content Management Integration

Last position:

Bundesrechtsanwaltskammer

Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
Documentation of test cases, execution steps, and test results.
Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.

Thomas P.

Freelance Software Architect

Last position:

Freelance Software Architect at Self-employed

Allal K.

Java Senior Full Stack Developer

Frechen

Last position:

Java Senior Full Stack Developer at 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

Joaquim L.

Freelance ABAP Developer, Logistics

Bonn

Last position:

Freelance ABAP Developer, Logistics at Cheplapharm

Tested integration of TIBCO EBX with SAP S/4HANA via TIBCO BusinessWorks – proof of concept
Implemented use case: communication between TIBCO EBX and SAP S/4HANA via IDocs to exchange material master data and business partner data
Customized, configured, and implemented inbound and outbound processing in the SAP S/4HANA environment for communication with the TIBCO EBX software interface
Distributed classes, characteristics, and values between TIBCO BusinessWorks and SAP S/4HANA and customized the inbound processing
Documented the technical components

Emmanouil T.

Senior Analytics Engineer

Last position:

Senior Analytics Engineer at Trade Republic Bank GmbH

Implementation of analytics and automation solutions for the Anti Financial Crime business unit
Providing the infrastructure, including reusable data models and feature ingestion for production ML and rule based models in the areas of Account Take-Over and Card fraud detection, as well as Customer Risk Assessment
Tools used: Snowflake, dbt, Looker, AWS, Python, Airflow, Metaflow

Markus G.

Full Stack Developer

Frechen

Last position:

Full Stack Developer at REWE Digital

A warehouse valuation system was reimplemented using Java, Spring Boot, and Camunda. The backend solution focuses on integration and batch calculations, the frontend on managing formulas and reviewing results.
Java 21
Spring Boot
JPA
Maven
REST
Kafka
PostgreSQL
DB2
Liquibase
Google Cloud Storage
Keycloak
GitLab CI/CD
Helm
Terragrunt
SonarQube
Angular
IntelliJ
JUnit 5
Mockito
Open API

Jens H.

#52 Test Manager in Safety-Critical Infrastructure

Last position:

#52 Test Manager in Safety-Critical Infrastructure at Telecommunications Company

Network elements, network, operational and operator-related systems
Supporting around 20 different products (managed agile)
Requirements analysis and management (functional and non-functional)
Test concept and planning (scope, test phases, effort, schedule, resources, organization, etc.)
Aligning approach with clients and service providers
Managing and assisting in creation of test cases for system, integration and end-to-end tests
Guiding and supporting test execution
Defect management and planning bug fixes with external providers
Preparing and facilitating workshops
Regular reporting and creating automated test reports
Further development of agile testing methodology and configuration of supporting tools
Conceptual support in developing a quality seal for rating product and service quality of internal and external providers
Requirements engineering based on ISO/IEC 25010, Scrum, SaFE
BMC Remedy, Atlassian Confluence, Atlassian Jira (including plugins Xray, Structure), Microsoft Office (incl. Visio), Obsidian, doxis document management system, Gitlab, Obsidian

Kai B.

Freelance CPQ Consultant (Full-Time)

Last position:

Freelance CPQ Consultant (Full-Time) at Freelance CPQ Consultant

Independent CPQ consulting for a portfolio of industrial manufacturers, including Scheidt & Bachmann, Trützschler Group SE, and Weiss Klimatechnik GmbH (Schunk Group)
Full project coverage: requirements analysis, concept, system design, implementation, testing, and international go-live support
Deep integration work with SAP ECC (material master replication, SD document creation, material creation, general APICONNECT and other web service interfaces)
Process consulting: analysis and optimization of internal quoting processes for sales and management
Knowledge transfer/coaching and pair programming to strengthen internal team skills

Predrag P.

Test Developer | Test Automator

Leverkusen

Last position:

Test Developer | Test Automator at CreditReform

Technologies: Java 25, Selenium, Insomnia, SSO, GitLab, Jenkins, Docker, Kubernetes, Jira, IntelliJ, Nexus, Oracle, MariaDB, Spring Boot, Grafana, Concept Board, Vue.js, OpenAPI, Kotlin. Implementation, maintenance, and extension of automated end-to-end regression tests for UI and API interfaces. Appropriate and targeted test automation across multiple software products, including Java-based Windows applications. Automating business processes with Selenium, reset jobs, and DB import jobs, as well as creating test concepts, test case descriptions, and structured bug reporting.

Vladimir M.