Vladimir Maznicenko

Q: Where is Vladimir based?

Vladimir is based in Brühl, Germany .

Q: What languages does Vladimir speak?

Vladimir speaks the following languages: German (Native), Russian (Native), Ukrainian (Native), English (Intermediate) .

Q: How many years of experience does Vladimir have?

Vladimir has at least 23 years of experience. During this time, Vladimir has worked in at least 9 different roles and for 19 different companies . The average length of individual experience is 1 year and 10 months . Note that Vladimir may not have shared all experience and actually has more experience.

Q: What is Vladimir's latest experience?

Vladimir's most recent position is Developer at Financial services provider .

Q: What companies has Vladimir worked for in recent years?

In recent years, Vladimir has worked for Financial services provider , Government agencies , Bank , Transport , and Insurance company .

Q: Which industries is Vladimir most experienced in?

Vladimir is most experienced in industries like Banking and Finance , Information Technology (IT) , and Insurance . Vladimir also has some experience in Government and Public Administration , Telecommunication , and Transportation and Logistics .

Q: Which business areas is Vladimir most experienced in?

Vladimir is most experienced in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) . Vladimir also has some experience in Finance .

Q: Which industries has Vladimir worked in recently?

Vladimir has recently worked in industries like Insurance , Banking and Finance , and Transportation and Logistics .

Q: Which business areas has Vladimir worked in recently?

Vladimir has recently worked in business areas like Information Technology (IT) and Product Development .

Recommended expert

Brühl, Germany

Experience

Mar 2023 - Jun 2024

1 year 4 months

Germany

Developer

Financial services provider

Maintenance and further development of a framework for application development in a banking association: DynS/OSPE
Migration of the framework to Java 11 and Java 17
Java 8, Java 11 and Java 17, Spring, Spring Batch, Spring WebServices, Spring Security, Spring Data, JPA, Hibernate, open-source libraries, etc.
XML, JAXB, JSON, REST and SOAP services, DB2, Oracle, WebSphere/Liberty AS, FreeMaker, JUnit, mock libraries, JaCoCo, Maven, IntelliJ, Eclipse, GitHub, SVN, Jira

Aug 2022 - Dec 2022

5 months

Germany

Developer

Government agencies

Development of an application to support companies under the Federal Immission Control Act
Java 11 and Java 17, Spring, Spring Boot, Spring WebServices, Spring Security, Spring Data, JPA, Hibernate, open-source libraries, etc.
XML, JAXB, JSON, JAX-WS, XSD, WSDL, REST and SOAP services, Swagger, Keycloak, PostgreSQL, Oracle, Docker, JUnit, mock libraries, Maven, IntelliJ, GitLab, agile development, Scrum, Jira

Feb 2022 - Jul 2022

6 months

Germany

Developer

Bank

Further development of the company's internet and intranet portals
Development and maintenance of interfaces to external systems
Java 11, migration from Java 8 to Java 11, Spring, Spring Boot, Spring WebServices, Spring Security, Spring Data, JPA, Hibernate, open-source libraries, etc.
Tomcat, XML, JAXB, JSON, JAX-WS, XSD, WSDL, REST and SOAP services, Confluence plugin development, Oracle, JUnit, TestNG, Mockito, PowerMock, etc., Maven, Eclipse, IntelliJ, Jenkins, Git, Bitbucket, Artifactory, agile development, Scrum, Jira

May 2021 - Dec 2021

8 months

Germany

Developer, Architect

Transport

Further development of the company's service portal
Development and maintenance of interfaces to external systems
Portal and server-side development under a microservices architecture
Performance optimization of the application
Coordination of requirements and operational support of the operations team
JEE development: Java 11, Spring, Spring Boot, Spring WebServices, Spring Security, Spring Data, Apache Camel, JPA, Hibernate, open-source libraries, etc.
Tomcat, XML, JAXB, JSON, JAX-WS, XSD, WSDL, REST, Oracle, Angular, microservices, OpenShift, Swagger, JUnit, Mockito, Maven, IntelliJ, Jenkins, Git, GitLab, DevOps, agile development, Scrum, Jira, Confluence

Jan 2019 - Mar 2021

2 years 3 months

Germany

Developer

Insurance company

Further development of a life insurance application
Portal, batch, and server-side development under a microservices architecture
JEE development: Java 8, Spring, Spring Boot, Spring WebServices, Spring Security, Spring Batch, Apache Camel, JPA, Hibernate, Dozer, MapStruct, open-source libraries, etc.
IBM WebSphere, Tomcat, XML, JAXB, JSON, JAX-WS, XSD, WSDL, REST, DB2, microservices, OpenShift, Swagger, Splunk, JUnit, TestNG, Mockito, Selenium, Cucumber, SonarQube, Maven, Eclipse, Jenkins, Git, Bitbucket, agile development, Scrum, Jira, Confluence

Oct 2018 - Dec 2018

3 months

Germany

Developer

Software house

Further development of the portal for an insurance company (SSO product development)
Development of libraries for using SSO login with STS and SAML protocol
Implementation under a microservices architecture
JEE development: Java 8, Spring, Spring Boot, Spring Web Services, Spring MVC, Spring Security, STS, SAML protocol
Tomcat, XML, JAXB, JSON, JAX-WS, XSD, WSDL, Microservices, Docker, JUnit, Mockito, Selenium, Cucumber, Maven, Eclipse, Subversion, Jenkins, Git, Agile development, Scrum, Jira, Confluence

Jan 2017 - Sep 2018

1 year 9 months

Germany

Developer

Insurance company

Further development and maintenance of the insurance company's online presence
Frontend, backend, and batch process development
Development of source code generation
JEE development: Java 8, Spring, Spring Batch, Spring Boot, Spring Web Services (SOAP and REST), Spring MVC, Spring Security, JSP, JavaScript, jQuery, Bootstrap
Tomcat, XML, XSLT, JAXB, JSON, JAX-WS, XSD, WSDL, JPA, Hibernate, Dozer, PL/SQL, ICAP protocol (MacAffe server), JUnit, DBUnit, various mock libraries, Selenium, Oracle, SQL Developer, SOAP-UI, H2 etc., Maven, Eclipse, Subversion, Jenkins, Git, Enterprise Architect, Agile development, Scrum, HPQC, Jira

Oct 2016 - Nov 2016

2 months

Germany

Developer

Insurance company

Analysis and support of several web applications within the insurance company's online presence
JEE development: Java 8, JPA, Web Services, JSF, Spring, Spring Boot, Hibernate, JBoss, XML, XSLT, JAXB, JUnit, mock libraries, Oracle, SQL Developer, H2 etc., Maven, Eclipse, Jenkins

Jan 2016 - Aug 2016

8 months

Germany

Developer, Coach

Government authority

Development of a system for automatic data exchange
Batch process development and creation of a web application for monitoring and analyzing data
Server-side development
JEE development: Java 8, JPA, Web Services, JSF (PrimeFaces), Spring, Spring Batch, Hibernate, JBoss, XML, XSLT, JAXB, StAX, JAX-WS, WSDL, Dozer, MapStruct, Poi, JUnit, DBUnit, various mock libraries, Oracle, SQL Developer, XMLSpy, H2 etc., Ant, Eclipse, Git, Jenkins

Aug 2015 - Oct 2015

3 months

Germany

Architect, Developer

Bank

Analysis of the existing online banking application
Business alignment and feasibility analysis of new enhancement requirements
Definition of interfaces and implementation of prototype web services
Development of interfaces and collaboration with service consumers
Java development: Java 8, Web Services (SOAP), JAX-WS, Oracle, SQL Developer, Eclipse, XIP (Soffico), DIAMOS

Mar 2015 - Jul 2015

5 months

Germany

Developer

Government Agency

Further development of the web application across all layers: GUI with JSP and ADF Faces, service layer and database queries
Porting the application from OC4J to WebLogic
JEE development: Java 5/6, OC4J, JSF (ADF Faces), Spring, Hibernate, JPA, JUnit, various mock libraries, Enterprise Architect, Oracle, SQL Developer, etc., Ant, Eclipse, Git, Jenkins, Scrum

Sep 2013 - Oct 2014

1 year 2 months

Germany

Developer

Insurance Company

Server-side development in an SOA architecture with Java 6/7 in a heterogeneous environment
Development of web services with various features
Process development with an in-house BPM engine
JEE development: Java 6/7, JBoss, web services, BPM, SOA, Spring, JAXB, JAX-WS, XSLT, MQSeries, JUnit, various mock libraries, Dozer, etc., Enterprise Architect, CentraSite, Oracle, Squirrel, Hermes, etc., Maven, Eclipse, Jenkins

Apr 2012 - Jun 2012

3 months

Germany

Developer

Bayer AG

Development and maintenance of the TROUX application (enterprise portfolio management tool)
Configuration of the application
Creation of BIRT reports for Oracle
Creation of customized pages (JavaScript/JSP)
JSP, JavaScript, Tomcat, Oracle, PL/SQL, BIRT reports

May 2011 - Feb 2012

10 months

Germany

Developer

Telecom

Enhancement and maintenance of a billing and invoicing application
Server-side development under a JEE architecture for JBoss with EJB3, CDI and JPA
Creation and interaction of web services with CXF, Hibernate and Spring
Use of Sybase, HQL and SQL
Team collaboration using agile development methods
JEE development: Java 6, JBoss, EJB3, JPA, CDI, web services, Spring, Hibernate, CXF, JUnit, mock libraries, Google Guava, Dozer, etc., Sybase, SQuirrel, Maven, Eclipse

Jan 2011 - Feb 2011

2 months

Germany

Developer, Tester

Bank

Setting up the test environment and maintaining data exchange programs for the Tristan online banking system
Maintaining batch programs using Spring Batch, Hibernate and open source libraries
Preparing unit tests and integrating open source products

Sep 2006 - Dec 2010

4 years 4 months

Germany

Developer, Tester

Bank

Further development and maintenance of a fund management application on a J2EE architecture with BEA WebLogic
Use of Struts, JSF, Hibernate and Spring
Frontend development: JavaScript, JSP, CSS, Ajax etc.
Backend development: WebServices, EJB, HQL, SQL etc.
Conducting and supporting tests as well as integrating open-source products
Team collaboration using agile methods
J2EE development: Java5, BEA WebLogic, EJB, EJB patterns, WebServices, Struts, JSF, IceFaces, RichFaces, Spring, Hibernate, HTML, JSP, JavaScript, CSS, Ajax, Spring DWR, JUnit, Cactus, EasyMock, JMock, JFreeChart, etc., CruiseControl, FOP/XSL, DWR, Oracle, SQL Developer, Ant, Eclipse

Feb 2006 - May 2006

4 months

Germany

Developer

Automotive

Development of a control system on a J2EE architecture with BEA WebLogic and Struts
Work in front-end and back-end development in an international project
Windows platform
J2EE development: HTML, JSP, JavaScript, Struts, BEA WebLogic, EJB, JMS, EJB patterns, JUnit, Cactus, Oracle (PL/SQL, stored procedures), Ant, Eclipse, TOAD, Mercury TestDirector

Sep 2005 - Dec 2005

4 months

Germany

Developer

Software Development

Development of a content management system on a J2EE architecture
Mostly server-side development and front-end development with the Struts framework
Independent implementation of a use case requirement to create a web application
J2EE development: HTML, JSP, JavaScript, CSS, Struts, OC4J, JBoss, EJB, JMS, Spring, Hibernate, JUnit, Cactus, Jakarta Commons, EasyMock, PostgreSQL, Oracle 9i, Maven, Ant, XML processing, Eclipse

Mar 2005 - Jul 2005

5 months

Germany

Architect, Developer, Coach

Aerospace

Design, development and support for the rollout of an intranet application to automate design processes
Development on Apache/Tomcat with Struts and Hibernate
Use of C++ libraries on HP-UX
J2SE, Struts, Hibernate, web technologies (JSP, JavaScript, Servlets, JavaBeans), Tomcat, Oracle 9i, OCI driver, JUnit, Ant, GUI development patterns, C++ on HP-UX

Jun 2004 - Nov 2004

6 months

Germany

Developer, System Architect

Software

Development of an intranet application for monitoring, recording and supporting the project workflow of a software company (resource management)
Development on a J2EE architecture using open-source products
J2EE, web technologies (JSP, JavaScript, Servlets), Oracle 9i, Swing development, web development in Java (EJBs, JMS, JTA, JMX, JavaMail), XML processing (XMLSpy), JBoss, JUnit, Ant, J2EE patterns

Nov 2001 - Mar 2004

2 years 5 months

Germany

Developer, System Architect

Federal and State Tax Administration

Developed a unified tax administration system for tax offices (Fiscus)
Developed custom class libraries under a J2EE architecture
Application development for fines, criminal cases, tax investigations, and real estate transfer tax
Integrated new processes with existing systems like the Central Public Prosecutor's Case Registry (ZStV)
MDA-based development under a J2EE 4-tier architecture, modeling with Rational Rose (UML), web technologies (JSP, JavaScript, Servlets, EJBs, JMS), in-house class libraries and framework, Oracle 8i, client/server development, GUI development, web development with Java, XML processing, MPFJ, application servers (JBoss, OCI4J, BeanTA, Orion), JUnit, Ant, J2EE patterns

Apr 2001 - Sep 2003

2 years 6 months

Germany

Team Leader, Developer, System Architect

IT consulting agency

Developed a personnel management and project processing system (Personal Project Planner)
Responsible for system design and development
Visual Basic 6.0 with SQL Server 2000 and Oracle 8/8i on Windows 2000
Implemented internet interfaces with ASP, MS IIS, Apache/Tomcat, Servlets, JSP, and JavaScript
Client/server programming in the front end (VB 6.0) and database area (T-SQL, PL/SQL)
Used Crystal Reports and ported to Windows 2000 and .NET architecture (Visual Basic .NET, ADO.NET, C#)

Apr 2001 - Oct 2001

7 months

Germany

Developer

Telecommunications

Extended a billing and invoicing system for T-Online (portal software programming, Infranet programming)
Built premium services for the Customer Self Care interface for T-Online customers
Web programming under a J2EE 4-tier architecture with EJBs, Servlets, JSP, iPlanet, Infranet server, and Oracle 8i
Java and C/C++ programming on Windows and Solaris, front end, client/server and server programming, JBuilder, Oracle tools, Exceed, ClearCase, iPlanet

Aug 2000 - Mar 2001

8 months

Germany

Developer

Telecommunications

Developed the T-Info portal for Telekom
Implemented under a J2EE architecture with BEA WebLogic, Gauss-VIP content management system, and Oracle 8i
Developed external integrations and auxiliary applications, Oracle 8 administration
Java, Oracle 8i (stored procedures), development on NT and Solaris, BEA WebLogic, J2EE, Servlets and JSP, HTML, FTP and RMI programming, Swing and AWT, Perl programming, ClearCase

Oct 1999 - Jul 2000

10 months

Germany

Developer

Telecommunications

Maintained a customer care and billing system (BSCS) for the service provider Telepassport
Enhanced and further developed system support for billing in the back office area
C/C++ and Perl programming on Windows and Linux
Continued maintenance of the reconciliation component of the BSCS system
C/C++ development on NT and Linux, Perl programming, Oracle 8i (stored procedures), client/server programming, batch programming on Linux, ClearCase, Rational Rose, encryption methods

Apr 1998 - Aug 1999

1 year 5 months

Germany

Developer, Designer

Software House

Developed and maintained Schumann's Security Administration Manager (SAM) for comprehensive account and access management
Managed accounts and access rights on various target platforms (MVS, Unix, OS/2, Windows)
Developed client/server interfaces and encryption for secure communication
Programmed in C/C++ and Java on MVS OS/390, OS/2, Solaris, HP Unix, AIX, and Windows
Used C, C++, Java (JCE, JNI, Swing, RMI), client/server and back-end development on OS/390, security and cryptography, CVS, JBuilder, MS Visual Studio, MFC, STL, CORBA

Apr 1997 - Mar 1998

1 year

Germany

Developer, Architect

Telecommunications

Developed the rating and billing system for T-Mobile (Project IV’98)
Integrated front-end applications like CustomerCare and call centers
Participated in the security committee and developed the crypto library for the internal TFC client/server framework
Worked with C++, in-house class libraries, Oracle 8i, client/server development on Sun Solaris, DEC Unix, and Windows NT
3-tier architecture, modeling in Rational Rose (UML), ClearCase, MS Visual Studio, security and cryptography (Kerberos, RSA, Diffie-Hellman, block ciphers), MFC, STL, ATL

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (6.5 years), Information Technology (6 years), Insurance (5.5 years), Government and Administration (3.5 years), Telecommunication (2 years), and Transportation (0.5 years).

Banking and Finance

Information Technology

Insurance

Government and Administration

Telecommunication

Transportation

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (22.5 years), Product Development (7 years), Quality Assurance (4.5 years), and Finance (4.5 years).

Information Technology

Product Development

Quality Assurance

Finance

Skills

Main Focus Areas: System Architect, Developer
Topics: Object-oriented Development Of Web-based Applications, Agile Development, Devops
Development Methods: Ooa, Ood, Oop, Uml, Xml, J2ee Patterns, Gui Development Patterns, Mda-based Development On J2ee, Soa And Bpm
Standards And Protocols: Jee, Ejbs, Xml, .Net, Various Encryption Methods, Http, Https, Icap Protocol, Sts, Saml
Programming Languages: Java, Xslt, Html, Javascript, Sql, Hql, T-sql, Pl/sql, C, C++, C#, Ado.net, Visual Basic, Visualbasic.net, Vb.net, Perl, Uml
Application Servers, Jee, Web Servers, Frameworks: Spring, Spring Batch, Spring Boot, Spring Mvc, Spring Security, Spring Data, Tomcat, Jboss, Weblogic, Websphere/liberty, Oc4j, Hibernate, Cdi, Jpa, Jdbc, Cxf, Jaxb, Jax-ws, Jsp, Jsf, Jquery, Angular, Dozer, Mapstruct, Docker, Apache Camel, Splunk, Swagger, Freemaker, Junit, Selenium, Cucumber, Mockito, Easymock, Jmockit, Powermock, Git, Gitlab, Github, Bitbucket, Maven, Jenkins, Ant, Struts, Richfaces, Icefaces, Primefaces, Fop, Xslt, Css, Custom Frameworks (Including Dyns/ospe From Fi), Microsoft Mfc
Tools/ides: Eclipse, Intellij, Jbuilder, Netbeans, Enterprise Architect, Ibm Rational Rose, Cvs, Svn, Git, Cm Synergy, Clearcase, Hpqc, Exceed, Oracle Tools, Siemens Openft Tools, Ms Visual Studio, Ms Office, Crystal Reports, Maven, Ant, Jenkins, Docker, Openshift
Databases: Oracle, Ms Sql Server 7/2000, Ms Access, Db2, Postgresql, Sybase, Btrieve, Hsqldb, H2
Data Communication: Nt Networks, Internet/intranet, Novell, Ftp, Tcp/ip
Operating Systems: Linux, Ms Windows, Solaris, Os/2, Os/390, Mvs, Z/os, Hp-ux, Aix
Standard Software: Ms Office Professional (Word, Excel, Outlook, Powerpoint)
Industries: Finance (Banks And Insurance), Public Sector (Financial Administration), Software Development, Telecommunications, Transport, Airbus, Automotive, Research, Chemicals

Languages

German

Native

Russian

Native

Ukrainian

Native

English

Intermediate

Education

Diploma in Mathematics · Mathematics

Ph.D. in Mathematics · Mathematics

Profile

Created

August 2025

Last Update

August 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Vladimir based?

Vladimir is based in Brühl, Germany.

What languages does Vladimir speak?

Vladimir speaks the following languages: German (Native), Russian (Native), Ukrainian (Native), English (Intermediate).

How many years of experience does Vladimir have?

Vladimir has at least 23 years of experience. During this time, Vladimir has worked in at least 9 different roles and for 19 different companies. The average length of individual experience is 1 year and 10 months. Note that Vladimir may not have shared all experience and actually has more experience.

What roles would Vladimir be best suited for?

Based on recent experience, Vladimir would be well-suited for roles such as: Developer, Developer, Architect, Developer, Coach.

What is Vladimir's latest experience?

Vladimir's most recent position is Developer at Financial services provider.

What companies has Vladimir worked for in recent years?

In recent years, Vladimir has worked for Financial services provider, Government agencies, Bank, Transport, and Insurance company.

Which industries is Vladimir most experienced in?

Vladimir is most experienced in industries like Banking and Finance, Information Technology (IT), and Insurance. Vladimir also has some experience in Government and Public Administration, Telecommunication, and Transportation and Logistics.

Which business areas is Vladimir most experienced in?

Vladimir is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA). Vladimir also has some experience in Finance.

Which industries has Vladimir worked in recently?

Vladimir has recently worked in industries like Insurance, Banking and Finance, and Transportation and Logistics.

Which business areas has Vladimir worked in recently?

Vladimir has recently worked in business areas like Information Technology (IT) and Product Development.

What is Vladimir's education?

Vladimir holds a Doctorate in Mathematics.

What is the availability of Vladimir?

Vladimir is immediately available full-time for suitable projects.

What is the rate of Vladimir?

Vladimir's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.