Stephan Heilmann-Development, Tester
Check rate
Experience
Development, Tester
Telecommunications
Set up an operational contract information system. This is mainly used as an order management system - for migrating existing contracts as well as for creating and providing new contract bundles.
Sales agents can use it to order new services, modify existing ones and migrate service types, as well as provide price information to the customer.
This supports the marketing of new services as well as the replacement of old services for existing customers.
In addition, existing data is imported, processed (ETL) and provided via services for further use in the portal front end.
Analysis of the business and technical use cases (workflows, involved processes/systems, communication paths, security requirements)
Further development / creation of the front-end components (React/JavaScript)
Design and implementation of the business logic
Creation of the functional and technical component documentation
Test execution / test automation (Cypress, test coverage)
Team size: 8 people
Technologies: React, JavaScript, Rest (JSon), Yaml, Markdown, MariaDB (SQL), Docker, Swagger, Cypress
Tools: Webstorm, ReactDeveloperTools, VisualStudioCode, Word, DBeaver, Git/GitLab
Work management: GitLab
Platform: Linux
Build management: GitLab
Development, Data Security/Security, Tester, Test Automation Engineer
Telecommunications
Set up a sales information system. To support order management, a sales information system is to be built. A web UI allows users to view contracts, enter orders and pass them on to downstream systems for execution. One part of the project is ensuring data retention periods for personal information comply with data protection rules.
Technical design of the business retention periods for data storage (data security)
Creation of the backend components for time-based deletion of import/master and transaction data according to the data security concept
Creation of the functional and technical component documentation
Quality assurance (implementation and execution of module and system tests)
Test automation (PyTest, test coverage)
Team size: 8 people
Technologies: Python, Rest (JSon), Yaml, Markdown, S3, MariaDB (SQL), Docker
Tools: PyCharm, VisualStudioCode, WebStorm, SoapUI, Word, DBeaver, Git/GitLab
Work management: GitLab
Platform: Linux
Build management: GitLab
Development, Tester, Test Automation Engineer
Government agency
Anonymization of statistical data. A government agency is required to prevent statistical values from being traced back to the original values and thus ensure anonymization, among other things.
For this, mathematical algorithms are used with disturbance factors and overlay matrices.
It must be ensured that the reported deviations of the total results stay within a defined range through overriding.
For the specialist departments/applications, suitable REST & SOAP web services must be provided that, among other things, receive these original values (possibly up to 1 million records), process them depending on the use case and return the overlaid values.
In addition, the respective business behavior must be tested for correctness and performance, and suitable module and system tests must be implemented.
Analysis of the business and technical use cases (workflows, involved processes/systems, communication paths, security requirements)
Design and implementation of the service interfaces (REST & SOAP services)
Design and implementation of the service objects (XML/XSD, JSON)
Design and implementation of the business logic
Design and implementation of the persistence layer (data structures, XML, CSV)
Quality assurance (design and execution of module and integration tests, test coverage, code quality assurance Sonar, security QA OWASP)
Test automation (JUnit, Mockito, SoapUI)
Team size: 4 people (subproject team), 25 people (overall project team)
Technologies: JavaEE 8/Jakarta EE 10, SOAP, REST, Groovy, CSV, XML, XSD, Swagger, OpenAPI
Tools: Eclipse, JBoss AS 7.4 & 8.0, SoapUI, Word, Powerpoint, PDF, Maven, Mockito, Sonar, Jacoco, OWASP
Work management: Jira, Confluence
Platform: Windows
Build management: Jenkins
Test Manager
Foreign Trade
Customs export declaration (PortaZa). PortaZa forms an interface between ERP systems of small businesses and customs, or customs declaration.
As part of product development, the need for suitable QA / qualified testing became clear.
Analysis of the business and technical requirements for the system test
Creation of a test concept
Analysis of the business and technical use cases (workflows, involved processes/systems, communication paths, security requirements)
Development of a technical test specification
Development of a functional test specification
Consulting on the specification and implementation of test cases
Team size: 6 people
Technologies: Java 8, JBehave, Selenium, Serenity, Hibernate
Tools: Word, Powerpoint, Netbeans, Maven, Docker
Work management: Jira, Confluence
Build management: Jenkins
SIT Coordinator, Business Analyst, Test Automation Engineer, Tester
Energy supply
Railway power supply unbundling. An international railway power supply company must technically separate its market roles (user and supplier) across the system.
The new system is expected to cover all business cases supported so far, from recording through to billing, while also meeting the new requirements and regulations of the BNetzA.
The newly created system landscape must undergo continuous QA for all running processes.
Analysis of the business and technical use cases (workflows, involved processes/systems, communication paths, security requirements)
Documentation of the business use cases and the involved processes/systems
Design of business and technical test cases/scenarios (including load and performance tests) with a focus on system and system integration tests
Design of test specifications and test plans (including acceptance documents, QA)
Design, implementation and automation of tests / regression tests (including logging of test results in HP QC)
Recording of defects in HP ALM / QC
Team size: 14 people (supplier stream), 60 people (overall project team)
Technologies: SOAP, Groovy, HP ALM/QC, JMS/TibcoEMS (MDB), Oracle SQL, Java 8
Tools: SoapUI, Word, PDF, Innovator, Maven, TestRunner framework, JUnit
Work management: Jira, HP ALM/QC
Platform: Linux (SLES12), Windows
Build management: Jenkins
System Designer, Development, Tester
Energieversorgung
Usage Data Management System. Setup of a new system landscape to separate the market roles (user and supplier) regarding market communication, master data storage and management, and reporting.
Receiving and storing market-role-specific data (master data, usage information) and its automated processing and transfer to downstream systems.
Analysis of the technical use cases (workflows, involved processes/systems, communication channels, security requirements)
Documentation of the use cases using Innovator (UML)
Design and implementation of the service objects (MDB, JMS and SOAP services)
Design and implementation of the business logic
Design and implementation of the persistence layer (data structures, JPA)
Design of the gateway processes/interfaces (Tibco)
Creation of the component documentation
Quality assurance (planning and execution of module, integration, and acceptance tests)
Support during system go-live
Team size: 8 people (team NDM), 60 people (overall project team)
Technologies: Java 7/8, JEE, SOAP, JPA/Hibernate, EJB3, Log4J, JMS/TibcoEMS (MDB)
Tools: Word, PowerPoint, Innovator, Eclipse, JBoss AS 7 (6.4.1), Tibco Designer, Maven
Task management: Jira
Tests: JUnit, SoapUI (Groovy)
Platform: Linux (SLES11/12), Windows
Build management: Jenkins
Business Analyst, System Designer, Consulting
Logistk
Shipping Management System. Basic system redesign of a shipping management system that had reached its technological limits.
The new system covers all business cases and is being brought up to the current technology level.
Analysis of the functional use cases (screens, customer requests, support team requirements)
Analysis of the technical use cases (workflows, involved backend systems, communication channels, security requirements)
Documentation of the use cases using UML2
Creation of the system documentation
Team size: 12 people
Technologies: Java 7, JEE, REST, JPA/Hibernate, Log4J
Tools: Word, PowerPoint, Google Docs, Enterprise Architect, Netbeans 7, JBoss 7, BPMN
Task management: Redmine
Tests: JUnit
Platform: Linux, Windows
Business Analyst, System Designer, Consulting and Development
Telekommunikation
Voucher Management Suite. Design and implementation of a management suite for a proprietary voucher system of an online shop.
Support for a wide range of business cases through customer support.
Analysis of the technical use cases (workflows, involved backend systems, communication channels, security requirements)
Documentation of the use cases using UML2
Design and implementation of the service objects (Spring MVC) and design/implementation of the frontend UI (HTML 5, CSS, JSP, Javascript, JQuery)
Design and implementation of the persistence layer (data structures, JPA)
Implementation of the SSO mechanisms (OpenId, OAuth1)
Execution of tests on the acceptance system (SLES11)
Creation of the system documentation
Support during go-live
The project was carried out as part of an iterative agile process model (SCRUM)
Team size: 7 people
Technologies: Java 7, JEE, JavaScript, JSP, CSS, REST, Spring Framework, JPA/Hibernate, oAuth1, Log4J, HTML5, CSS3
Tools: Enterprise Architect, Netbeans 7, Maven, Tomcat 7, Apache Commons Configuration
Task management: Jira, Confluence
Tests: JUnit
Platform: Linux
Build management: Jenkins
Business/Technical Analyst, System Designer, Consulting and Development
Telekommunikation
Development of a gateway between a classic and an IP-based telephony system. Providing access to the integrated answering machine via a specific gateway with SOAP services.
Structural and impact analysis of the telephony system interfaces incl. performance measurements
Design of the process architecture of the gateway/interface
Design of the persistence layer
Design of an infrastructure to ensure high system availability
Planning and participation in the implementation work
Quality assurance (planning and execution of module, integration, and acceptance tests)
Support during system go-live
The project was carried out as part of an iterative agile process model (SCRUM)
Team size: 5 people
Technologies: UML, Java 7, JEE, Axis, XML, XSD, SOAP, Shell Scripting, JPA/Hibernate, oAuth1, Log4J, SCRUM
Tools: Enterprise Architect, Netbeans 7, Tomcat 6, XMLSpy, MS-SOAP-Toolkit, Putty, SSH, SoapUI, MS-Access, Apache Commons Configuration
Task management: Jira, Confluence
Tests: JUnit
Platform: Linux
Build management: Jenkins, Maven
Business/Technical Analyst, System Designer, Consulting and Development
Telekommunikation
Development of a REST gateway for the SMS successor service Joyn (RCSe). Equipping the infrastructure with a REST interface for communication with mobile devices (text, files, chat, video telephony).
Structural and impact analysis of the Joyn system to be connected
Specification of the key technical use cases
Evaluation of third-party providers in the RCS/RCS-e components
Planning and management of the pilot phase and final implementation
Technical project lead, consulting and participation in the implementation
Integration (third-party software), connection of the supplier backend
Execution of acceptance tests
Support during migration to the live system and commissioning
Creation of the system documentation
The project was carried out as part of an iterative agile process model (SCRUM)
Team size: 8 people
Technologies: Java 7, JEE, Axis, XML, XSD, SOAP, Shell Scripting, JPA/Hibernate, oAuth1, Log4J, SCRUM
Tools: Enterprise Architect, Eclipse, Tomcat 7, XMLSpy, Putty, SSH, SoapUI, MS-Access, MS-PowerPoint, Apache Commons Configuration
Task management: Jira, Redmin
Tests: JUnit
Platform: Linux
Build management: Jenkins, Maven
Business Analyst, System Designer, Implementer, Senior Test Manager
Internet Service Provider
Mobile web shop frontend. Enabled shop access via Android app for a multi-tenant shop infrastructure.
Native app with configurable branding layout.
Identified and documented the relevant use cases
Designed the GUI
Designed/defined the software architecture for a configurable GUI layout
Implemented as a native app in Java
Planned, carried out, and documented manual system tests
Team size: 3 people
Technologies: Java, web service, REST, JSON, OAuth
Tools: PENCIL, Balsamiq, Netbeans with Android plugin
Work management: Confluence, Jira
Platform: Android
Build management: Jenkins, Git
Business/Technical Analyst, System Designer, Consulting and Development
Telecommunications
Development of a SOAP interface to an email service. Standardization and simplification of configuration tasks for a mail system via a SOAP interface.
Analysis of the mail system APIs to be used and the communication paths
Capturing and modeling the relevant use cases
Designing the required state machine model
Design of the service interfaces
Service implementation
Design, planning, and execution of automated regression tests
Migration of the services to the production environment
Consulting for product rollout
Creation of the system documentation
Team size: 4 people
Technologies: Java 7, JEE, Axis, XML, XSD, SOAP, shell scripting, JPA/Hibernate, Log4J
Tools: Enterprise Architect, Netbeans 7, Tomcat 6, XMLSpy, MS-SOAP Toolkit, Putty, SSH, SoapUI, MS Access, Apache Commons Configuration
Work management: Jira, Confluence
Tests: JUnit
Platform: Linux
Build management: Jenkins, Ant
Business/Technical Analyst, System Designer, Consulting and Development
Telecommunications
Development of a system for automated GUI tests. Development of an infrastructure for automated testing of dynamic user dialogs for GUI-based services.
Analysis of the applications to be tested
Design and implementation of a form and template parser
Creation of the system documentation
Team size: 2 people
Technologies: PHP, Perl, JavaScript, HTML5, CSS3, JQuery
Tools: Zend Studio
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
System Designer, Consulting and Development
Telecommunications
Development of a gateway for access to a cloud store. Development of a specific gateway for app access to cloud services (images, videos).
Analysis of the existing backend services, working out requirements
Design and implementation of the new software components
Execution of unit and bundle tests
Packaging (RPM) and delivery
Consulting on software delivery, distribution, and quality assurance
Creation of the system documentation
The project was carried out using an iterative agile process model (SCRUM)
Team size: 12 people
Technologies: Java 6, Axis, XML, SOAP, OSGI, Spring Framework, PHP, SCRUM
Tools: Eclipse, Putty, SoapUI, SSH, Apache Commons Configuration
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
System Designer, Development
Industry-independent standard product
Development of a mobile frontend for a project controlling system. Enabled the recording of actual expenses via mobile devices for field staff.
Identified the main use cases
GUI design using mockups
Design and implementation of the REST services
Implementation of the iOS app
Application testing, software distribution
Team size: 1 person
Technologies: Objective C, REST, JSON
Tools: XCode 4, iPhone/iPad emulator
Work management: Jira, Confluence
Platform: OSX
Business/Technical Analyst, System Designer, Consulting
Telecommunications
Created a feasibility study for providing streaming services from a media portal on modern TV devices. Examined TV devices for suitability for streaming services, including authorization and billing.
Analyzed the technical features of sample devices (Samsung, Philips, LG)
Analyzed the device API
Developed test applications for the respective device platforms (native apps and web apps)
Implemented applications, including access to the authorization and billing systems
Documented features and shortcomings of the device platforms
Documented the required workflows
Team size: 3 people
Technologies: device SDKs, Java 6, JavaScript, REST, SOAP, Axis, XML, HTML
Tools: NetBeans, Tomcat 7, Apache Commons Configuration
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
Technical Analyst, System Designer, Consulting, Development
Telecommunications
Migrated telecom backend services to the OSGi platform. Switched to an OSGi-compliant architecture to make operations easier and allow service updates without restart.
Analyzed existing services and worked out requirements for the migration
Technical project lead
Designed and implemented the new software components
Planned and carried out tests on the acceptance system
Packaging and delivery
Consulting for software release/distribution/quality assurance
Created the system documentation
Team size: 3 people
Technologies: Java, Axis, XML/SOAP, OSGi, Spring Framework
Tools: Enterprise Architect, Eclipse, Tomcat 6
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
Technical Analyst, System Designer, Consulting, Development
Telecommunications
Developed a SOAP interface for a voice-over-IP system. Connected the VoIP system to the central authorization and provisioning system through a SOAP interface.
Identified and documented the important use cases
Designed the data transformation rules between the VoIP system and the SOAP interface
Designed the state machine model for communication control
Implemented the SOAP interface/gateway
Planned, carried out, and documented system and acceptance tests
Created the system documentation
Migrated the gateway to the live system and provided consulting for the production rollout
Team size: 5 people
Technologies: Java, Axis, XML/SOAP
Tools: Enterprise Architect, NetBeans, XMLSpy, MS SOAP Toolkit, Tomcat 6, IBM WebSphere, Jetty, PuTTY, SSH, SoapUI, MS Access
Work management: Confluence, Jira
Platform: Linux
Build management: Jenkins, Ant
Technical Analyst, System Designer, Consulting, Development
Telecommunications
Redesigned an existing SOAP-based communication platform to achieve WS-I compliance. Modified the email service API according to the standards of the Web Services Interoperability Organization (WS-I).
Technical analysis of the service requests and their parameter structures
Redesigned the services into a WS-I-compliant SOAP structure
Generated the technical service interfaces with SOAP toolkits
Validated, tested, and documented the new service interfaces
Implemented extended services
Team size: 2 people
Technologies: Java, Axis, XML/SOAP
Tools: Enterprise Architect, JBuilder, Eclipse, XMLSpy, MS SOAP Toolkit, Tomcat 6, Jetty, PuTTY, SSH, SoapUI
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
Technical Analyst, System Designer, Consulting, Development
Telecommunications
Developed a platform for connecting digital photo frames to an image archive. Enabled the display of images from the cloud on digital photo frames.
Analyzed the existing interfaces to the image archive
Designed the data transformation rules between the interfaces and the new SOAP services
Designed and implemented an RSS photo feed server and configuration front end
Technical project lead and consulting for installation/configuration
Delivered the software to the test and production systems
Created the system documentation
Team size: 3 people
Technologies: Java, Axis, XML/SOAP, JSON, RSS, Media RSS, ATOM
Tools: Enterprise Architect, Eclipse, XMLSpy, MS SOAP Toolkit, Struts 2, Tomcat, Jetty, PuTTY, SSH, SoapUI
Work management: Confluence, Jira
Platform: Linux
Build management: Jenkins, Ant
Technical Analyst, System Designer, Consulting, Development
Telecommunications
Migration of a reporting system (DWH). Migration of the DWH and the data supply processes from Debian Linux/Oracle to AIX/DB2.
As-is analysis of the existing system
Design and implementation of data transformations for AIX and DB2
Deployment to the test system and packaging for the production system
Design of the ETL for the staging area
Implementation of an application to control external processes and data compression
Execution of tests and creation of reports
Consulting during production go-live and user training
Team size: 8 people
Technologies: Java, Axis, XML/SOAP, JSON
Tools: Enterprise Architect, NetBeans, XMLSpy, MS SOAP Toolkit, Tomcat, Jetty, PuTTY, SSH, SoapUI, MS Access, DB2, Oracle, Informatica
Work management: Confluence, Jira
Platform: Linux, AIX
Build management: Hudson, Ant
Technical Analyst, System Designer, Consulting and Implementation
Telecommunications
Provision of a generic SOAP interface for a social network platform. Enabling the exchange of information between different Web 2.0 platforms.
Analysis of existing social network services (Flickr, Facebook, YouTube) and their architecture (WSDL, REST)
Development of a concept for a modular gateway interface (SOAP)
Design of the data structures for the interface configuration
Presentation and alignment of the solution
Support with the implementation
Team size: 6 people
Technologies: Java, Axis, XML/SOAP
Tools: Enterprise Architect, Eclipse, XMLSpy, MS SOAP Toolkit, Tomcat, Jetty, PuTTY, SSH, SoapUI
Work management: Jira, Confluence
Platform: Linux
Build management: Hudson, Ant
Technical Analyst, System Designer, Consulting and Implementation
Telecommunications
Conversion of existing communication service components to a service-oriented architecture (SOA) and an enterprise service bus (ESB). Redesign of the message-based communication infrastructure.
Technical analysis of the existing services and identification of weak points
Validation and testing of existing service interfaces as well as their documentation
Redesign of the services into a WS-I compliant SOAP structure
Leading workshops to develop the new service structure
Team size: 6 people
Technologies: Java, Axis, XML/SOAP
Tools: Enterprise Architect, Eclipse, XMLSpy, MS SOAP Toolkit, Tomcat, Jetty, PuTTY, SSH, SoapUI
Work management: Jira, Confluence
Platform: Linux
Build management: Hudson, Ant
System Designer, Consulting and Implementation
Telecommunications
Development of a platform for running load tests on a streaming system.
Extension of the existing web application with rights and user management
Revision of the documentation and changes to the data model
Execution of acceptance tests and user training
Consulting on setting up configurations and carrying out the load tests
Team size: 2 people
Technologies: PHP, HTML, CSS
Tools: Zend Studio, MySQL, Apache, PuTTY, SSH, WinSCP
Work management: Confluence, Jira
Platform: Linux
System Designer, Consulting and Implementation
Telecommunications
Development of a central web service platform as the main access point to the services of a portal operator.
Implementation of the central service platform as a SOAP web service
Design and implementation of the rights concept and administration
Concept and implementation of access to distributed backend systems
Design and implementation of data mapping and consolidation
Execution of tests on the acceptance system and migration to the production system
Team size: 2 people
Technologies: Java, Axis, XML/SOAP
Tools: Enterprise Architect, JBuilder, XMLSpy, MS SOAP Toolkit, Tomcat, Jetty, PuTTY, SSH, SoapUI, MS Access
Work management: Confluence, Jira
Platform: Linux
Build management: Hudson, Ant
System Designer, Consulting and Implementation
Telecommunications
Development of a system for real-time analysis of the technical systems of a portal operator.
Integration of a multi-user database
Design and implementation of data transformation rules
Consolidation and ETL of incoming data (preprocessing)
Performance optimization at source code and database level for just-in-time processing
Testing on the acceptance system
Creation of system documentation and migration to the live system
Team size: 2 people
Technologies: Java, Axis, XML/SOAP
Tools: JBuilder, MySQL, Apache, Putty, SSH, MS-SOAP Toolkit, Tomcat, MS Access, DB2, Oracle
Work management: Confluence, Jira
Platform: Linux
Technical Analyst, System Designer, Consulting and Implementation
Telecommunications
Development of web services for a VOIP system. Connection of existing backend systems to a VOIP system through a specific gateway.
Integration of a multi-user database
Design and implementation of data mapping
Design of the relevant use cases (record dependencies)
Design of a reaction matrix as an automaton
Acceptance testing
Creation of system documentation and migration to the live system
Team size: 8 people
Technologies: Java, Axis, XML/SOAP
Tools: JBuilder, MySQL, Apache, Putty, SSH, MS-SOAP Toolkit, Tomcat, MS Access
Work management: Jira, Confluence
Platform: Linux
Build management: Jenkins, Ant
Business Analyst, System Designer, Consulting and Implementation
Food Industry
Creation of a reporting system. Providing business reports for a standard ERP system using BI services of an MS SQL database.
Analysis of company data in the ERP system
Design and provision of data views for reporting
Design and provision of the cube model
Design and provision of reports for purchasing, sales, and revenue planning
Extension and adjustment of existing reports
Development of a migration concept for report templates
Team size: 2 people
Tools: MS SQL Server, MS Reporting Server, MS Analysis Server, MS Visual Studio, myFactory (ERP system), MS Internet Information Server
Work management: Confluence, Jira
Platform: MS Windows Server
Technical Analyst, System Designer, Consulting and Implementation
Telecommunications
Development of web services for a VOIP system. Connection of existing backend systems to a VOIP system through a specific gateway.
Analysis of incoming data
Identification of relevant use cases
Design and implementation of data transformations
Design of a reaction matrix as an automaton
Acceptance testing and creation of system documentation
Migration to the live system
Team size: 6 people
Technologies: Java, Axis, XML/SOAP
Tools: JBuilder, MySQL, Apache, Putty, SSH, MS-SOAP Toolkit, Tomcat, MS Access
Work management: Confluence, Jira
Platform: Linux
System Designer, Consulting and Implementation
Automotive
Redesign of a support controlling system. Provision of information using business intelligence methods for controlling support services.
Analysis of the existing legacy system
Design and implementation of the data model for the central OLAP data storage system
Design of the data marts and data supply jobs (ETL)
Design of the reports
Testing on the acceptance system and migration to the live system
Team size: 2 people
Technologies: Data Warehousing, Business Intelligence, ETL
Tools: Powerdesigner, Cognos DecisionStream, Cognos Impromptu, Cognos Powerplay, DB2, Toad for DB2
Work management: Confluence, Jira
Platform: AIX, Windows
System Designer, Consulting and Implementation
Telecommunications
Creation of a system for workforce planning. Provision of planning and controlling tools for service teams based on the Cognos suite.
Analysis of the existing operational data
Design and implementation of the data model for the OLAP data storage system
Design of cube models and data extraction processes
Development of automation for cube creation (including fail-safe)
Design of audit reports (Report-Net)
Creation of documentation for OLAP datastore and analysis cube models
Conducting user training sessions
Team size: 10 people
Technologies: Data Warehousing, Business Intelligence, ETL
Tools: Cognos Transformer, Cognos Contributor, Cognos Analyst, Cognos Connection, Cognos Report Studio, Powerdesigner, Toad, Oracle 10.1
Version control: Clearcase
Platform: Windows
System Designer, Consulting and Implementation
Automotive
Build-up of a balance sheet based rating system. Objective evaluation of partner dealers with regard to their financial situation based on balance sheet data.
Analysis of the manually created reports and document structure
Design of GUI templates and report templates
Implementation of a report generation engine
Development of a converter from HTML reports to PDF reports
Setup of a test system and execution of load tests
Team size: 7 people
Technologies: Data Warehousing, Business Intelligence, ETL, OLE Automation, COM, HTML, XHTML, Java, Delphi, VBA
Tools: Powerdesigner, Cognos DecisionStream, Toad, DB2, Delphi, Freemaker, Adobe Acrobat, MS Visual Studio
Version control: Confluence, Jira
Platform: AIX, Windows
Technical Analyst, System Designer, Consulting and Implementation
Telecommunications
Development of test scenarios for a customer database. Development of automated regression tests for a customer database with web service API.
Analysis of the existing access functions to the customer database
Collection of typical use cases for interaction according to the developer concept
Development of test scripts for a generic simulator
Execution and logging of the tests (pass/fail scenarios)
Bug reporting
Team size: 2 people
Technologies: Java, Axis, XML/SOAP
Tools: JBuilder, MS SOAP Toolkit, Apache, Putty, SSH, Tomcat
Version control: Confluence, Jira
Platform: Linux
Technical Analyst, Consulting and Commissioning
Telecommunications
Support of a paid content platform. Consulting services for connecting new internet-based services to a common technical infrastructure.
Development of internal system data management tools
Creation and maintenance of system configurations
Analysis and restructuring of existing functionality
Test management regarding the implementation of new features
Technical support for external partners during integration
Team size: 10 people
Technologies: Java, Axis, XML/SOAP
Tools: JBuilder, XMLSpy, MS SOAP Toolkit, Apache, Putty, SSH, Tomcat, MS Project, MS Access
Version control: MS Project
Platform: Linux
System Designer, Consulting and Implementation
IT Services
Expansion of a CRM/HR system.
Design of GUI templates (HTML)
Script development to extend the GUI templates
Analysis and restructuring of existing functionality
Implementation of new features
Creation of the user manual
Team size: 4 people
Technologies: Java
Tools: Powerdesigner, Eclipse, MS SQL Server
Version control: Confluence, Jira
Platform: Windows
System Designer and Implementation
IT-Services
Creation of a web presence based on a content management system.
Analysis of the components to be published (content & design)
Design and implementation of HTML design templates
Administration of the CMS
Script development for dynamic content (sitemap)
Team size: 1 person
Technologies: HTML, CSS, JavaScript, VB-Script
Tools: Microsoft CMS, SQL Server
Work management: Confluence, Jira
Platform: Windows
Business and Technical Analyst, System Designer
Finance
Redesign of the transaction module for a mobile payment system. Solution for correct processing of the payment reference in the backend of a payment system.
Analysis and documentation of the existing system architecture
Specification/documentation of the new target architecture with extended functionality
Team size: 1 person
Technologies: PL/SQL
Tools: Oracle 8i, Toad
Platform: Unix
Business and Technical Analyst, System Designer, Consulting and Implementation
Finance
Development of a fund management system. Redesign of the business process to reduce costs and error rates through automation of system communication.
Business process analysis
Analysis and documentation of the existing system architecture
Design and implementation of a new data storage system
Design and implementation of the web-based front end
Design of test scenarios and execution of integration tests
Team size: 10 people
Technologies: Java, PL/SQL, HTML, CSS, UML, JSP, JavaScript
Tools: PowerDesigner, Enterprise Architect, Oracle 8i, Toad, JBuilder, JUnit
Work management: Confluence, Jira
Platform: Unix
Business and Technical Analyst, System Designer, Consulting and Implementation
Finance
Development of a universal and flexible tariff system.
Leading an international development team
Training and coaching in Java, OO, relational databases
Design, implementation and testing of the application framework in Java
Design and implementation of the data storage system
Team size: 10 people
Technologies: Java, PL/SQL, HTML, CSS, UML, JSP, JavaScript, XML
Tools: PowerDesigner, Enterprise Architect, Oracle 8i, Toad, Visual Age for Java, JBuilder, JUnit, Tomcat, MS Project
Work management: Confluence, Jira
Platform: Unix
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Telecommunication, Utilities, Government and Administration, Information Technology, Banking and Finance, and Transportation.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, Product Development, Business Intelligence, and Project Management.
Skills
Senior Consultant With Focus On Web Applications (Back-End And Front-End)
Tester (Istqb)
Test Automation Engineer
Integration Tester
Banking
Public Authority
Foreign Trade
It
Energy Supply
Marketing
Telecommunications
Automotive
Logistics
Microsoft Office Tools, O365
Ms Project
Industry-Specific Prt Tools
Jira, Gitlab
Confluence
Infopath
Sharepoint
Hp Alm / Qualitycenter
Waterfall Model
V-Model
Agile Software Development With Scrum
Agile Streams / Value Streams
Ooa/Ood
Behavior Driven Development
Test Driven Development
Data/Er Modeling/Db Design
Uml
Bpmn
Mac Os 7.X/8.X/10.X
Ios 4-7 (Iphone/Ipad)
Ms-Dos
Windows 95-7/10/11, Server 2008/2016/2019
Linux (Debian, Sles, Ubuntu)
Solaris
Assembler (8-Bit)
C#
Objective-C, Swift (Basic Knowledge)
Java/Javaee (Main Programming Language Used), Jdk 1.8-21, Openjdk11-23, Jakarta Ee 9/10
Scala
Php
Python
Html/Html5
Css/Css3
Xml (Xsd/Dtd/Xslt)
Sql
Pl/Sql
Tcl/Tk
Groovy
Access
Oracle 8, 8i, 10.X, 11, 12
Ms Sql Server (2000, 2005, 2008)
Db2
H2db
Mysql, Mariadb
Postgresql
Odbc/Jdbc
Enterprise Architect
Powerdesigner
Ms Visual Modeller
Innovator
Visio
Mindmap
Talend 6.X (Etl)
Cognos Series 7 With Powerplay, Impromptu, Decissionstream (Etl)
Microsoft Sql Server 2005 Analysis Server
Microsoft Sql Server 2005 Reporting Server
Eclipse / Myeclipse
Netbeans
Jbuilder 3.5-2008
Visual Studio (.Net)
Visual Studio Code
Zend, Phpstorm
Pycharm
Webstorm
Intellij Idea
Apple Xcode
Xmlspy / Oxygen
Maven, Ant
Soapui (Including Groovy)
Ms Soap Toolkit
Cvs, Svn, Git, Mercurial
Gitlab Ci/Cd, Jenkins
Vmware (Test/Acceptance And Development Systems)
Apache
Tomcat, Tomee
Docker
Jetty
Iis
Jboss, Wildfly, Glassfish
Ejb
Com/Dcom
Ria (Gtw, Silverlight)
Jquery, Bootstrap 4/5
Spring Frameworks / Spring Boot
Hibernate, Jpa, Eclipselink
Servlets
Jsp, Jsf
React, Reacttoolkit, Vite
Jms / Mdb (Tibco, Ems, Jboss Hornetq)
Jbehave, Selenium, Serenity
Cypress
Playwright (Java, Python)
Owasp, Sonar, Trivy
Sqlalchemy
S3
Soap (Wsdl, Wadl)
Json/Rest (Wadl)
Swagger, Openapi
Ajax
Yaml
Markdown
Languages
Education
Unknown
Training as IT specialist for system integration · IT specialist for system integration · Germany
FH Darmstadt
Computer Science · Darmstadt, Germany
Certifications & licenses
ISTQB Certified Tester
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
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