Enji's Blog
About
Intro | Activities | Principles | Experience | Education | Projects | Exams and Certifications | Trainings | Publications | Languages | Technologies
My name is Nenad Jovanovic (“Enji”), and I am a freelancing Java / Spring / Jakarta EE / Eclipse MicroProfile developer, architect and consultant.
Availability: Please check my current availability on Freelancermap or LinkedIn.
Activities
Overview:
- Analyzing problems and requirements.
- Designing software and systems architectures.
- Implementing solutions with focus on Java EE / Jakarta EE / Eclipse MicroProfile.
- Performing trainings, workshops, and code reviews.
Details:
- Performing technology evaluations.
- Performing technology updates and migrations.
- Providing the technological framework for application development.
- Defining guidelines for development and architecture.
- Creating and reviewing documentation.
- Identifying and continuously communicating with stakeholders.
- Participating in interdisciplinary teams.
Principles
- Quality
- Efficiency
- Automation
- Clarity
- Simplicity
- Transparency
In other words: good - fast - understandable.
Experience
| Date | Role | Employer |
|---|---|---|
| 2025/06 - today | Founder / Managing Partner | Loopyx OG |
| 2021/08 - today | Freelance IT Consultant | Freelancer |
| 2008/05 - 2021/08 | Java Developer / Software Architect / Enterprise Architect | SVC |
| 2007/08 - 2008/05 | Civilian Service | Bundesasylamt Traiskirchen |
| 2005/08 - 2007/08 | Project Assistant (Web Application Security) | Vienna University of Technology, Institute of Information Systems |
Education
| Date | School | Program |
|---|---|---|
| 2004 - 2007 | Vienna University of Technology | Economics and Computer Science (Dr.rer.soc.oec.) |
| 2000 - 2004 | Vienna University of Technology | Economics and Computer Science (Mag.rer.soc.oec.) |
Projects
| Date | Title | Description |
|---|---|---|
| 2023/11 - 2025/12 | Logistics Support Services | Analysis and implementation of logistics support services for LKW WALTER AG. |
| 2022/05 - 2023/11 | Insurance Platform Authorization System | Analysis and implementation of the authorization system (and other features) for an online insurance sales platform of Generali Versicherung AG. |
| 2021/08 - 2022/05 | Migration to Magnolia CMS | Migration of an existing web portal to Magnolia CMS (Solution Architect & Business Analyst). |
| 2017/04 - 2021/08 | Centralization of Distributed Client Applications | Porting of multiple applications (up to 15 years old and distributed to more than 10.000 client computers) to a central server system using Java EE. |
| 2020/08 - 2020/09 | Jareto: Java REST Tools | Support library for the development of REST applications (Open Source). Also described by an article in Oracle’s Java Magazine. |
| 2016/04 - 2017/05 | Batches to the Application Server | Porting of stand-alone batch applications to Java EE for operation inside application servers. |
| 2016/03 - 2017/05 | Spring to Java EE | Modernization and simplification of multiple Spring/Hibernate-based applications to Java EE. |
| 2014/07 - 2015/11 | e-Medication | Design and implementation of a backend system for storage and provision of medication data in the context of the Austrian Electronic Health Record (ELGA). |
| 2013/05 - 2013/12 | ELGA Portal | Design and implementation of a web portal for querying e-health data and performing opt-out declarations by citizens in the context of the Austrian Electronic Health Record (ELGA). |
| 2011/08 - 2013/05 | Jetty to Java EE | Porting of multiple OSGi/Axis/Tapestry/Jetty-based applications to Java EE for operation inside application servers. |
Exams and Certifications
| Date | Title |
|---|---|
| 2021/10 | iSAQB Certified Professional for Software Architecture |
| 2020/10 | TOGAF 9 Foundation |
| 2012/01 | Oracle Certified Expert, EE 6 Enterprise JavaBeans Developer |
| 2011/05 | Oracle Certified Professional, Java EE 5 Web Component Developer |
| 2008/12 | Sun Certified Programmer for the Java Platform, Standard Edition 6 |
| 2007/10 | Dissertation / Doctoral Program |
| 2004/10 | Diploma Thesis / Master Program |
| 2000/06 | Secondary School Final Exams |
Trainings
The following training courses can be held on request, either in-house or remote.
Git Kickstarter
- duration: 1 day
- Git concepts & use cases
- usage via command line
- usage via Eclipse (EGit)
- for beginners & users of other version control systems (such as SVN)
Publications
Subscription-free PDF versions of the scientific publications below can be found using Google Scholar.
| Date | Title | Published by | Authors |
|---|---|---|---|
| 2021/05 | Make Java REST development easier with the Jareto library | Java Magazine (Oracle) | Nenad Jovanovic |
| 2010/08 | Static Analysis for Detecting Taint-Style Vulnerabilities in Web Applications | Journal of Computer Security | Nenad Jovanovic, Christopher Kruegel, Engin Kirda |
| 2007/10 | Web Application Security (Dissertation) | Vienna University of Technology | Nenad Jovanovic |
| 2007/02 | Cross Site Scripting Prevention with Dynamic Data Tainting and Static Analysis | Network and Distributed System Security Symposium | Philipp Vogt, Florian Nentwich, Nenad Jovanovic, Christopher Kruegel, Engin Kirda, Giovanni Vigna |
| 2006/08 | Preventing Cross Site Request Forgery Attacks | IEEE International Conference on Security and Privacy in Communication Networks | Nenad Jovanovic, Engin Kirda, Christopher Kruegel |
| 2006/06 | Precise Alias Analysis for Static Detection of Web Application Vulnerabilities | ACM SIGPLAN Workshop on Programming Languages and Analysis for Security | Nenad Jovanovic, Christopher Kruegel, Engin Kirda |
| 2006/05 | Pixy: A Static Analysis Tool for Detecting Web Application Vulnerabilities (Short Paper) | IEEE Symposium on Security and Privacy | Nenad Jovanovic, Christopher Kruegel, Engin Kirda |
| 2006/05 | SecuBat: A Web Vulnerability Scanner | The 15th International World Wide Web Conference | Stefan Kals, Engin Kirda, Christopher Kruegel, Nenad Jovanovic |
| 2006/04 | Noxes: A ClientSide Solution for Mitigating Cross Site Scripting Attacks | The 21st ACM Symposium on Applied Computing | Engin Kirda, Christopher Kruegel, Giovanni Vigna, Nenad Jovanovic |
| 2004/10 | Diploma Thesis, only available in German: Entwicklung eines webbasierten Institutsinformationssystems (unter besonderer Berücksichtigung der Websicherheit) Development of a Web-Based Departmental Information System (with special regard to Web Security) |
Vienna University of Technology | Nenad Jovanovic |
Besides, I am continuosly extending my GitHub account, mostly with various tech demos.
Languages
| Language | Level |
|---|---|
| German | production-ready (native) |
| English | production-ready |
| Serbian | family |
| French | secondary school |
| Japanese | basic (hobby) |
Tools & Technologies
Here are a few keywords covering some of the tools and technologies that I usually work with:
Java
Spring
Java / Jakarta Enterprise Edition
Eclipse MicroProfile
SQL
JavaScript / TypeScript
Angular
Apache Kafka
REST
SOAP
Git
GitHub
Subversion
Maven
Jenkins
Docker
Jekyll
AWS
JIRA
Confluence
Trac
Grafana
Splunk
SoapUI
Eclipse IDE
IntelliJ IDEA
YAML
Markdown
HTML
JSON
XML
CSS
JBoss EAP / Wildfly
Tomcat
Linux
Windows