Konstantin Pribluda

Architect / Developer / Full Stack

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Vilnius, Lithuania

Experience

Sep 2024 - Present
1 year 5 months

Architect / Developer / Full Stack

XUSD DAO

  • Developed smart contracts and trading front-ends for new crypto tokens (pegged to US dollar)
  • Contracts built for an Ethereum-based blockchain
  • Front-ends with React
  • Includes unit and end-to-end tests
  • Smart contracts with Solidity
  • Tests with Hardhat
  • Front-end with React/TypeScript/Node/vite/viem
Mar 2023 - Aug 2024
1 year 6 months

Full Stack Developer

DB Netz AG / Infra.GO

  • Worked on a video management platform for rail line videos
  • Management, delivery, and analysis of DB line video recordings for training, vegetation assessment, infrastructure inspection, and mapping
  • Built a data warehouse for management to monitor filming and processing status in near real-time
  • Time-triggered ETL processes to integrate and prepare data from various sources
  • Backend: Java, Spring Boot, JPA, Feign, REST, Python, Postgres, Thymeleaf
  • Front-end: Angular, TypeScript, Node.js, HTML, Less/Sass, Video.js, Jasmine, Protractor, npm
  • Build and CI/CD: GitLab, Maven, Cucumber
  • Deployed on AWS: Lambdas, S3, SNS, Step Functions, CloudFormation
Jan 2023 - Feb 2023
2 months

Frontend / JavaScript Developer

NDA client

  • Developed data extraction and scraping tools for websites
  • Created userscripts for data collection and migration from non-cooperative websites
  • Plain JavaScript, Chrome browser, Tampermonkey APIs
Jun 2022 - Dec 2022
7 months

Backend Developer

DVAG Frankfurt

  • Developed backend microservices
  • Migrated Jenkins CI pipelines to GitHub Actions
  • Security audit of dependencies and business logic
  • Code reviews
  • Cloud-native application
  • Developed and bugfixed internal microservices (Spring Boot/OpenAPI/Feign)
  • CI migration to GitHub Actions for 35–40 individual services
  • Maven, Spring Boot, Spring Cloud, OpenFeign, OpenAPI Generator, Keycloak, Swagger, Java, Kotlin, Groovy, ActiveMQ, Spock (integration tests), Docker, Kubernetes, Azure deployment, MongoDB, Spring Data
May 2022 - Jun 2022
2 months

Full Stack Developer / Architect

Krola GmbH

  • Rapid application prototyping for clients using source code generators
  • Used modern tools for quick architecture decisions
  • JHipster generators, Spring Boot, TypeScript, Yeoman, npm, Gradle, JPA, MongoDB, Keycloak/OAuth, Docker, React, Angular, Vue, microservices, Prometheus, Grafana, GraphQL
Mar 2022 - May 2022
3 months

Backend Developer / Architect

TAS Mönchengladbach

  • Upgrade of the training system for military radio communications to current technology standards
  • Migration of the build system to Gradle
  • Introduction of unit tests
  • Migration to Spring Boot
  • Update to the latest Struts version
  • Code cleanup and documentation
  • Migration from JAXB to XStream
  • Data model improvements
  • Security audit of logic and dependencies
  • Business logic refactoring
  • Code review
  • Gradle, Java 11, Spring Boot, Struts 2/XWork, JUnit, Tomcat, Jakarta
Apr 2021 - Feb 2022
11 months

Full-Stack Developer / Architect

Voicecollect / ATIS / Uher

  • Cloud-based recording system for phone calls, video streams, and similar data for emergency services, police, call centers, air traffic monitoring, military
  • Architecture based on business requirements, project setup, backend and frontend development
  • Test coverage at all levels
  • Microservice architecture with service gateway and load balancing
  • Angular frontend and reactive Spring Boot gateway communicating with microservices
  • Dockerized components, encrypted communication
  • Authentication with OAuth (Keycloak, other options possible)
  • Full-text search with Elasticsearch
  • Java, JavaScript, TypeScript, Spring Boot, Angular, React/Redux, Git, Gradle, Protractor, Cucumber, JUnit, JPA, REST, Liquibase, OpenID Connect, npm, Docker, Docker Compose, Keycloak, Eureka Discovery Server, Hystrix, Swagger/OpenAPI, JWT, GitLab CI/CD, GraphQL
Mar 2021 - Apr 2021
2 months

Developer / Architect

Motorsport (NDA client)

  • Web-based geodata editor for racetracks
  • Fixed-price project with tight time and budget constraints
  • Full web application with React JS frontend, Spring Boot backend, and database
  • User management and microservices architecture
  • Preparation for deployment on cloud platforms (GCP, AWS, Kubernetes, Docker)
  • Modern source code generators
  • Integration of devices with MQTT
  • Java, JavaScript, React JS, Gradle, npm, Yeoman, Leaflet, MySQL, JPA, Spring Boot, Microservices, JWT, Docker, GCP, AWS, JUnit, Jest, Cucumber, MQTT
Jan 2021 - Feb 2021
2 months

Developer / Architect

VW

  • Prototype development of an OAuth server with client credentials flow
  • Go, public-key encryption, JWT, Docker, Kubernetes
Dec 2018 - Dec 2020
2 years 1 month

Developer / Architect

Smiths Detection

  • Full-stack software development in Java, Python, Shell
  • Automated regression tests and continuous integration with Jenkins/Cucumber
  • Code reviews
  • Creation of build pipelines and installation media
  • Development of JavaScript frontends (airport overview editor with SVG) integrated into JSF
  • Migration from TCP to encrypted communication (SSL/TLS) for C applications and Java servers
  • Troubleshooting and adjustments to the ImageViewer Swing client
  • Security audit of dependencies
  • Linux, CentOS, JBoss WildFly, plain Java apps, JSP, JSF, EJB, J2EE, Cucumber, Python, SVN, SnapSVG, jQuery, PrimeFaces, Mojarra, Web services, make, Git, CVS, Jenkins, Artifactory, Docker, virtualization (KVM), SSL/TLS, encryption, C/C++, Gradle, Java/Swing, single sign-on, Groovy, Python, RPM, Kanban, Scrum, Mockito, JMockit, JUnit, Spring, JPA
Jan 2018 - Feb 2018
2 months

Developer / Architect

Medien

  • Migrated the website to static generation
  • Eliminated the database as CMS backend
  • Simplified authoring with Markdown
  • Templating with Jade/Pug
  • JavaScript, Node.js, deployment via script
  • Static website for performance and security
  • Node.js, JavaScript, Sass/Less, Markdown, Jade/Pug, Bootstrap, Wintersmith, Angular
May 2017 - Dec 2018
1 year 8 months

Developer / Architect

vwd Vereinigte Wirtschaftsdienste GmbH

  • Developed workflows, analyses, and reports for portfolio management, data provisioning, and MiFID 2
  • Java, Delphi, Haskell, Perl, JavaScript
  • Plugin development in IntelliJ IDEA
  • SVN, GIT
Jan 2017 - Apr 2017
4 months

Developer

ICW AG

  • Further development and maintenance of the portal application for blood glucose meters (Accu Check 360 Connect)
  • Bug fixing, adjustments, and development of new features
  • Java 8, J2EE, JSF, Apache Tomcat, Oracle, MS SQL, Hibernate, JUnit, JMockit, Maven, Jenkins, Selenium, Kanban, Scrum
Jan 2017 - Feb 2017
2 months
Remote

Developer

Montafina GmbH

  • Software for data reconciliation for bank branch sales via remote desktop
  • Anonymized data comparisons using CVS lists
  • Report generation
  • Java 1.4, JDBC, MS SQL, Eclipse, Jasper Reports
Aug 2016 - Sep 2016
2 months

Developer

Projektfabrik GmbH

  • Reverse engineering and cleanup of a legacy application for withholding tax
  • Migrated the database layer from DB2/host/Adabas & Natural to PostgreSQL
  • Imported the source code into a GIT repository
  • Built with Maven and created Eclipse projects
  • Java/J2EE, Hibernate, JBoss, JSP, Struts 1, DB2, PostgreSQL, XML, Mockito, UML, DbUnit, Spring, Adabas, Natural
Apr 2015 - May 2015
2 months

Developer

Projektfabrik GmbH

  • Development of a REST wrapper for an existing EJB layer as part of a data migration project
  • Standalone Java application with embedded web server (Jetty)
  • API documentation with Swagger4J
  • Maven, Spring Boot, Spring REST, Spring-EJB, Jetty, Git, Gradle
Jun 2013 - Dec 2016
3 years 7 months

Senior Java Developer, Architect, Full Stack

Kosmos Banking / Montafina GmbH

  • Development of portals, tools, and business processes for private banking focusing on compliance, portfolio benchmarking, portfolio analysis, OLAP, and investment proposals
  • Creation of investment performance reports with Aspose (portfolio valuation, monitoring investment guidelines)
  • Development of analysis tools with Saiku/Mondrian and Crossfilter/DC JS/Angular
  • Business processes for compliance checks and reporting with Aspose
  • Migration from SVN to GIT, CI with Jenkins, DevOps
  • Introduction of unit tests with mocking (JMockit)
  • Development of an IntelliJ plugin for in-house BPM
  • Java 6-8, proprietary BPM, JavaScript (ExtJS, D3, Angular), Infinispan, Lucene/SOLR, Hibernate, Spring, Maven, IntelliJ IDEA plugin development, OLAP, Jenkins, Sonar, TDD, Kanban, Scrum, JIRA, GitLab, Cucumber, Groovy, JUnit, DbUnit, OAuth
Aug 2012 - Jun 2013
11 months

Senior Java Developer, Architect

DB Systel

  • Participation in RIS (traveler information system) and FIS (internal displays on trains)
  • Architecture review and implementation
  • Integration of legacy systems
  • Implementation of unit tests and monitoring test coverage
  • Batch processing of audio data
  • Unix, Java, J2EE, Enterprise Architect, Maven, JDBC, SQL, JSF, Oracle, JPA, Hibernate, Git, JMockit, RichFaces, Facelets, EJB, Single Sign-On
Jan 2012 - Jul 2012
7 months

Senior Java Developer, Architect

Online Directory Services GmbH

  • Relaunch of gelbeseiten.de including URL schema change for better search engine indexing
  • Performance optimization and ensuring test coverage
  • Refactoring and migration to Spring configuration and stateless operation
  • Distributed system across multiple data centers for fault tolerance and performance
  • Communication using Hessian/CXF
  • Java, Tomcat, Apache HTTPD, Apache Solr, Struts 1, JSP, JavaScript, JMockit, JUnit, Maven, Eclipse, CAS/Spring Security, Hessian, SAML, Kanban, Scrum
Sep 2011 - Dec 2011
4 months

Senior Java Developer, Senior Java Architect

Imperia AG / Deka Investment

  • Development and integration of custom CMS modules in BEA WebLogic Portal
  • BEA WebLogic, Maven, Jenkins, Java, Spring MVC, Pirobase CMS, Velocity, jQuery, JavaScript
Apr 2011 - Sep 2011
6 months

Senior Java Developer, Senior Java Architect

SYNYX GmbH

  • Consulting and development for customer projects at 1&1 in Karlsruhe
  • Integrating standalone software with calendar and appointment databases via CardDAV/CalDAV, using Open-Xchange for storage
  • Development of a provisioning adapter for third-party middleware between the webshop (Intellishop), billing system, and application providers
  • Java, Apache CXF, Apache Tomcat, JPA/Hibernate, REST, SoapUI, MySQL, Apache Wicket
May 2010 - Present
15 years 9 months

Technical Project Manager

MEI GmbH

  • Overall software development and offshore team leadership for the control software of a bone density measurement device
  • Creation of requirement specifications, QA, acceptance, and handover
  • Architecture, coaching, and part-time permanent position with profit sharing
May 2010 - Mar 2011
11 months

Development and Deployment Support

Deutsche Telekom AG

  • Supporting development and providing technical architecture consulting
  • Development of various adapters, connectors, and integration scenarios in JBoss ESB
  • Designing and executing test procedures for acceptance and performance tests
  • Introducing Maven
  • J2EE, JBoss, jBPM 4, ESB, SOA, Maven, Eclipse, SoapUI
May 2010 - May 2010
1 month

Trainer

Nürnberger Versicherungsgruppe

  • Developing and delivering a five-day training course on JBoss ESB and jBPM 4
  • Preparing training materials including hands-on exercises
May 2010 - May 2010
1 month

Trainer

Prodyna GmbH

  • Developing and delivering a half-day intensive training course for jBPM 4 developers
Apr 2010 - Apr 2010
1 month

Consultant

Deutsche Telekom / ZIT

  • Troubleshooting and adjusting jBPM administration tools for new process versions
Mar 2010 - Apr 2010
2 months

Consultant

SCHUFA Holding AG

  • Advising on improving build and test processes
  • Focus on build and automated testing procedures
  • Eclipse, Ant, Maven, JUnit, XDoclet, Java, Oracle, EJB 3, Struts 1/2, JSP
Feb 2010 - Feb 2010
1 month

Developer

Own Development (Open Source)

  • Developed a JSON marshalling library for the Android platform
  • Lean library (~4 KB) with no external dependencies
  • Google Android 1.5+, Java
Jan 2010 - Apr 2010
4 months

Developer

T-Systems (Darmstadt)

  • Developed and integrated tools and libraries for quality assurance and SLA monitoring for a statistical application
  • Java, Jasper Reports, JasperServer Pro, Spring MVC, Maven, Groovy, SoapUI, JMeter, Spring AOP, Hibernate, Tomcat, Shell scripts
Nov 2009 - Feb 2010
4 months

Developer

Own Development

  • Developed an ad-supported game for the Android platform
  • Published on the App Store with over 10,000 downloads
  • Java, Android-SDK 1.5–2.1, IntelliJ IDEA
Nov 2009 - Dec 2009
2 months

Consultant

DB Systel

  • Ten-day consulting for the introduction of ActiveMQ as an alternative to MQ-Series
  • Creation of high-performance and fault-tolerant configurations
  • Integration with existing MQ-Series installations
  • ActiveMQ 2.3, MQ-Series 6.1, Groovy, Java, XML, Spring, Bash, Linux
Nov 2009 - Nov 2009
1 month

Instructor

Brockhaus GmbH / Digital River

  • Conducted a three-day training on the Servlet API, J2EE, and Spring MVC
  • Developed training materials and hands-on exercises
Aug 2009 - Nov 2009
4 months

Developer

United Internet (1&1)

  • Optimization and further development of an ACS for TR-069 compliant CPEs after the acquisition of a competitor company
  • Integration of new CPEs (AVM Fritz!, Samsung) into the existing ACS infrastructure
  • Performance improvements and bug fixes
  • Adjustment of the Tomcat cluster for nightly CPE updates (4–5 million requests between 01:00 and 05:00)
  • CPEs, Apache HTTPD, Java, J2EE, Groovy, Servlets, SOAP (XFire, Axis), TR-069, JUnit, JPA/Hibernate, MySQL
Apr 2009 - Jun 2009
3 months

Test Automation

T-Home

  • Development and execution of test cases for business logic implemented in BPEL
  • Running and evaluation of tests with SoapUI
  • Feedback to architects and developers
  • Oracle BPEL Server, various application servers, Web Services, SoapUI, Groovy, Java, XML, XSLT, XPath
Dec 2008 - Apr 2009
5 months

Developer

Neckermann Versand AG

  • Development of high-performance applications for XML transformation and parsing of large (> 1 GB) files
  • ETL applications for Demandware and SAP imports/exports
  • Integration into WebSphere Process Server
  • UNIX/Linux, IBM WebSphere 6.1 (WID, ESB, Process Server), Talend OS, MySQL, Maven, Eclipse, XML, StAX, XMLBeans, JUnit, DBUnit, JDBC, Hibernate, Adabas/Natural
Aug 2008 - Dec 2008
5 months

Consultant

Lufthansa Systems

  • Evaluation of various ESB products (proof of technology) to improve SOA infrastructure
  • Implementation of typical integration scenarios
  • Development of operational concepts and developer instructions
  • Conducting performance tests in different configurations
  • Documenting the results
  • Sopera, Apache ServiceMix, Eclipse, Ant, Maven 2, BEA WLS 9.x/10.x, Tomcat, JBoss 4.2.2, TIBCO, MQ Series, Linux SLES 10.x, ActiveMQ, Joram, Talend OS, BPEL, Apache ODE, Perl
Jan 2008 - Jun 2008
6 months

Developer

Fraport AG

  • Worked on the "Barcode Boarding Pass" project
  • Development of a distributed application to check barcode-based boarding passes
  • Swing frontend with barcode scanner integration
  • Workgroup server for frontends (Java, DI with PicoContainer/Spring or JBoss SLSB)
  • MDB/SLSB-based backend server on IBM WebSphere 6.x
  • MQ Series for distribution of flight data and statistics
Jan 2008 - Jan 2008
1 month

Consultant

Deutsche Post AG / Printcom

  • Consulting and troubleshooting a business-critical distributed application based on JBoss and Hibernate
  • Performance optimization of large data retrievals with Hibernate
  • Eclipse RCP frontend, Oracle RDBMS
Oct 2007 - Oct 2007
1 month

Instructor

Verband Süddeutscher Apotheker

  • Four-day training in J2EE, EJB 3.0, web services, JMX administration, and JBoss configuration
Jun 2007 - Jun 2007
1 month

Instructor

Nokia Siemens Networks

  • Three-day training on Servlets, JMX, SIP, and JBoss for OiO GmbH
Sep 2006 - Dec 2007
1 year 4 months

Developer / Architect

T-Online International

  • Developed administration frontends for business processes (jBPM/BPEL)
  • Developed web services and queue adapters for MQ-Series and Oracle AQ
  • Developed administration tools for Oracle OC4J (JMX)
  • Customized stored procedures in Oracle DB
  • Java, J2EE, BEA WLS 8.1.4/9.x, Ant, Maven 2, XDoclet, Eclipse, WebWork 2 (Struts 2), Velocity, Hibernate, Oracle RDBMS, PL/SQL, Pico/Nanocontainer, HTML, CSS, Dojo/AJAX
Apr 2006 - Aug 2006
5 months

Consultant

DBV-Winterthur

  • Advised on rolling out JBoss 4 into production with a focus on security, SSL, monitoring, and operational support
  • JBoss 4, Solaris 10
Mar 2006 - Mar 2006
1 month

Instructor

Telenet GmbH

  • Two-day workshop on WebWork 2 and modern web technologies including materials preparation and exercises
  • Hibernate, IoC, project organization with Maven
Jan 2006 - Jan 2006
1 month

Consultant

T-Online MMS

  • Performed troubleshooting on an EJB application for Brockhaus GmbH
  • JBoss, J2EE
Sep 2005 - Dec 2005
4 months

Instructor

Brockhaus GmbH

  • Conducted several J2EE training sessions for Brockhaus GmbH/Tria
Apr 2005 - Apr 2006
1 year 1 month

Portal Developer

Kessel Systems

  • Development of a planning and configuration portal for an online game
  • Linux, MySQL, JBoss, Tomcat, Hibernate, Pico/Nanocontainer, Velocity, HTML, CSS, WebWork, Maven, Perl/Awk for game data preparation and extraction tools
Dec 2004 - Apr 2005
5 months

Developer

T-Online

  • Development of a B2B portal application on BEA Portal Server
  • Integration with CoreMedia CMS and SAP backend systems
  • Customization of the portal design with CSS
  • Oracle database
Jan 2003 - Dec 2004
2 years

Project Manager

Information Desire GmbH

  • Development of an information portal for the civil engineering industry (unitracc.de)
  • JBoss, WebWork, Velocity, Pico/Nanocontainer, Hibernate, MySQL, Java 1.4, XDoclet 2, HTML, CSS
  • Custom development: portal framework, validation framework, security/authentication, XDoclet modules, CMS
Aug 2002 - Oct 2002
3 months

Developer

UKW Wiesbaden

  • Development of a billing system for logistics companies
  • J2EE, EJB, Swing front end, PDF report generation
Jan 2001 - Apr 2002
1 year 4 months

Technical Project Manager

Deutsche Bank AG (SEHK)

  • Development of a portal for currency and precious metals logistics
  • J2EE (EJB, JBoss, JSP, JAAS, Struts), Ant, XDoclet, Oracle
Jan 2000 - Present
26 years 1 month

Developer, Operator

MEI GmbH

  • Development and operation of the website
  • Linux, Apache, mod_perl, HTML::Mason, Postgres, MySQL, HTML, CSS
Jan 1999 - Dec 2001
3 years

Developer

Deutsche Telefon AG

  • Development and operation of the website and billing software
  • Linux, Apache, mod_perl, HTML::Mason, Postgres, Adabas, Awk, Shell, batch processing of CDRs with Perl/Awk
Jan 1995 - Dec 1999
5 years

Developer, Technical Project Manager

MEI GmbH

  • Medical video archiving and processing (DICOM)
  • System for archiving cardiac catheterization examinations
  • Sun/Solaris and SGI IRIX
  • C/C++ with Motif/X11, scripting subsystems, assembly, Awk, Perl, Shell, CD burner
Jan 1994 - Dec 1995
2 years

Developer

City Fitness

  • Development of a point-of-sale system for a fitness studio with integration into inventory and member management
  • Windows 95, Visual Basic, VBA, MS Access

Summary

Technical Focus:

  • Java
  • Microservice architectures
  • OAuth
  • Spring Boot
  • Docker
  • Test automation with Selenium / Cucumber / Protractor
  • Portal development
  • Framework design
  • Integration of open-source frameworks
  • Build and configuration
  • Automated source code generation using XDoclet or similar tools
  • Content management
  • Persistence
  • ORM
  • Setting up test environments
  • Mocking
  • ETL
  • J2EE
  • JSF
  • SVG
  • Mojarra
  • PrimeFaces
  • Java
  • Mobile applications with Android
  • JavaScript
  • Data visualization
  • OLAP
  • OOA
  • OOD
  • XML
  • JSON
  • Reporting (Crystal / Aspose)
  • CI
  • DevOps

Industries:

  • Banking
  • Insurance
  • Telecommunications
  • Medical technology
  • Logistics
  • Civil engineering
  • Education
  • Aviation
  • Security
  • Shipping
  • Retail
  • Finance

Other:

Active contributor to various open-source projects (XDoclet 1&2, Struts1, XWork/WebWork (Struts 2), Pico/Nanocontainer, JavaOCR, AndJect, JSON Serializer, personal projects). Deep knowledge of related and used OS projects, also personally acquainted with many of their developers.

Publications:

  • Java Magazine 2/2003: "XDoclet EJB development made easy"
  • Java Spektrum 5/2006: Article on dependency injection with PicoContainer

Speaker:

  • JAX 2003, code generation using XDoclet

Skills

Operating Systems:

  • Google Android
  • Cp/m (Basic Knowledge)
  • Real-time Operating Systems
  • Hpux: Administration, Programming
  • Irix: Administration, Programming, Troubleshooting
  • Ms-dos: Programming, Administration
  • Osf/motif: Programming
  • Rsx-11
  • Rt-11
  • Sun Os, Solaris: Administration, Application Development
  • Unix: Administration, Programming (Mostly Linux), Web Server Operation, Installation, Firewall Configuration
  • Windows: Programming, Administration

Programming Languages:

  • Assembler (Mips, Sparc, Intel, Pdp): Development Of Image Codecs (Lossless Jpeg)
  • Basic: Various Small Projects, Access, Asp
  • C: Medical Image Processing, Programming Under Unix, Gui Programming With Motif
  • C++: Libraries For Dicom Standard, Medical Image Processing, Gui Programming (Irix), Applications For Data Conversion
  • Corba Idl
  • Delphi: Database Application Programming
  • Emacs Lisp: Daily Use, Small Programs
  • Forth: Advanced Knowledge, Graphical Programming, Postscript
  • Fortran
  • Gupta / Centura (Basic Knowledge)
  • Imake, Gnu Make, Makemaker Etc.: Daily Use, Creation Of Makefiles Among Others With Autoconf/automake
  • Java, Javascript: J2ee, Ant, Xdoclet, Ejb, Jboss, Velocity, Struts, Webwork, Jedit, Applet Programming
  • Lisp: Emacs Programming, Gimp Scripting
  • Macro Languages: M4 (Sendmail, Autoconf/automake)
  • Machine Languages: Sparc, Mips (O32, N32, N64), Intel, Pdp / 68xxx
  • Pascal
  • Perl: Scripting For Os Management, Web Server (Html::mason), Database Programming (Dbi, Persistent), Data Conversion And Processing, Log Processing, Call Data Handling
  • Php: Website Creation
  • Prolog: Small Programs
  • Python
  • Scripting Languages: Beanshell, Jelly, Jython, Groovy
  • Unix Shell: Scripting For Os Management (Bash, Csh, Sh ...), Use In Medical Image Processing
  • Tex, Latex
  • Vrml
  • Xt, Motif, Xmt, Gtk: Gui Development Under X11
  • Yacc/lex
  • Opengl
  • S-5 Simatic
  • Html, Css

Databases:

  • Access
  • Adabas
  • Approach
  • Bde
  • Dao
  • F&a
  • Jdbc
  • Ms Sql Server
  • Msql / Mysql
  • Odbc
  • Oracle
  • Postgres (From 7.0, Among Others As Ejb Persistence Layer)
  • Sql
  • Solid Experience With Orm Using Hibernate

Software Packages And Tools (Selection):

  • Java: J2ee (Ejb, Jsp, Jsf, Servlet), J2se, Jmx
  • Jca (Connection Pools, Transactions, Jndi, Jrmp)
  • Aop, Aspect-oriented Programming, Xdoclet (Contributor/committer)
  • Messaging: Mq Series, Oracle Aq
  • Ioc: Pico/nanocontainer (Committer), Customizing Various Open-source Frameworks (Hibernate, Webwork)
  • Applet Programming (Java Games, Data Entry Applets)
  • Bcel (Byte Code Engineering Library)
  • Junit: Test Development And Execution, Test Environment Organization And Setup

Application Servers:

  • Jboss (3.x, 4.x): Various Web/ejb Projects, Administration And Operation
  • Bea Weblogic (8.1), Bea Portal, Bea Workshop
  • Ibm Websphere

Persistence:

  • Castor Jdo
  • Jaws
  • Hibernate

Templating And Web Development:

  • Jakarta Velocity
  • Servlet Programming
  • Jsp Development
  • Swing / Awt: Frontend Development (Gui For Xdoclet, Jedit Plugin, Ejb Client Applications)
  • X11 Gui Development: Motif, Xmt, Gtk

Pdf And Reporting:

  • Pdf Report Generation (Velocity, Xslt, Xsl:fo, Fop)

Full-text Search:

  • Development Of Search Systems (Lucene-based)

Content Management:

  • Own Developments Based On Hibernate

Open-source Products (Use/contributions):

  • Perl
  • Apache Httpd
  • Tomcat / Catalina
  • Jboss
  • Ant
  • Xdoclet / Xdoclet-2
  • Webwork
  • Middlegen
  • Xdocletgui
  • Eclipse
  • Cvs
  • Struts
  • Jedit (Including Plugin Development)
  • Velocity
  • Beanshell
  • Fop
  • Pico/nanocontainer
  • Lucene

Xml Technologies:

  • Jaxp, Dom, Sax, Xerces, Xalan, Xslt, Docbook
  • Xstream, Xpp3, Pull Parsers

Additional Database Experience:

  • Mysql: Database-driven Websites, Faq Management, Content Management
  • Msql: Medical Image Processing
  • Postgres: Database-driven Websites
  • Oracle: Views & Queries, Persistence Layer In Banking Environment
  • Hypersonic/mckoy: Used In Jedit And Jboss

Application Frameworks:

  • Struts: Used In Banking Projects, Taglib Development, Automatic Formbean Generation
  • Webwork: Used In Web Development
  • Html::mason: Building Complex Websites And Cms

Configuration Management:

  • Cvs: Daily Use, Repository Organization
  • Clearcase

Multimedia Programming:

  • Jpeg (Own Codec For Lossless Jpeg)
  • Dicom-compliant Image Data
  • Video Grabbing & Editing (Sgi, Parallax Graphics, Optibase, Edt)

Documentation Generation:

  • Anakia
  • Docbook
  • Confluence

Methods:

  • Ooa
  • Ood
  • Uml
  • Xp

Languages

German
Native
Lithuanian
Elementary
Turkish
Elementary

Education

Oct 1994 - Jun 1999

FH Wiesbaden

Computer Science · Wiesbaden, Germany

Oct 1989 - Jun 1994

IFMO

Saint Petersburg, Russian Federation

IFMO

Diploma in Engineering, Systems Engineering · Systems Engineering · Saint Petersburg, Russian Federation

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Jens Rehsack
Jens Rehsack

Technical Product Owner

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Niko Schmuck
Niko Schmuck

Developing Architect, Technical Lead "gridlytics"

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Arne Hendricks
Arne Hendricks

Embedded Fullstack Developer

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Raphael Vullriede
Raphael Vullriede

Tech- / Team Lead / Architect / Engineer

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Oliver Bodemer
Oliver Bodemer

Senior Software Architect

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Rainer Diekmann
Rainer Diekmann

Enterprise Architecture Management / Software Developer Backend

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Mehmet Ünüvar
Mehmet Ünüvar

Director and Senior Project Manager

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Peter Fleischer
Peter Fleischer

Subproject Manager and Solution Architect - Microsoft 365 Transformation

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Louis Guitton
Louis Guitton

Freelance Solutions Architect and Machine Learning Engineer

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Sebastian Malm
Sebastian Malm

Head of Product & Engineering

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Torsten Lüders
Torsten Lüders

Technical planning and development of frontend and backend for e-waste-race.de / textil-race.de

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Suvrajit Saha
Suvrajit Saha

Advisor Go-2-Market

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Cesar Schneider
Cesar Schneider

Lead Cloud Engineer

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Matthias Kittner
Matthias Kittner

General ERP and AI Consulting

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Dean Rakic
Dean Rakic

CEO / Chief Scientist

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Michael König
Michael König

Architect and Full-Stack Developer

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Adel Bruno grimm
Adel Bruno grimm

React Native Developer

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Stefan Rest
Stefan Rest

Senior Product Owner

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Peter Kortmann
Peter Kortmann

Hardware and Software Developer / Project Manager

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Frank Mueller
Frank Mueller

Web3 accelerator participant co-founder

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Alexander Hauser
Alexander Hauser

Test Manager

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Christian Golecki
Christian Golecki

Product Owner – Redesign of an iOS and Android SaaS Application Platform

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Thomas Übermeier
Thomas Übermeier

Head of Engineering - Midnight

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