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Ioan Liviu Popa-IT Specialist/Application Developer
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Experience
Jan 2013 - Dec 2021
9 yearsSchliengen, Germany
IT Specialist/Application Developer
HST Systemtechnik GmbH / Axel Zangenberg GmbH
Position Summary
IT Specialist/Application Developer at HST Systemtechnik GmbH / Axel Zangenberg GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
- Development of web applications and integration with the Work4All ERP/CRM system using Node.js (Express.js, Socket.IO, TypeScript, Angular, Material, Angular Flex)
- Development of web applications with PHP (without framework)
- Frontend development with HTML, CSS, SCSS, JavaScript, JSON, Bootstrap, complex forms and data tables
- Database work with Microsoft SQL Server, MySQL, MongoDB and others
- Collaborative work using Agile/Scrum and version control with Git
- Configuration, maintenance, migration and backup of CMS (Joomla, Mediawiki, Piwik/Matomo)
- System administration until 2019: maintenance and configuration of servers (Windows, Linux), clients and network
- Virtualization with VMware ESXi and Veeam Backup & Replication
- Initial steps in the field of artificial intelligence and machine learning.
Jan 2010 - Present
16 years 4 monthsIT Specialist
Self-employed
Position Summary
IT Specialist at Self-employed
Industries
Information Technology
Business Areas
Information Technology
- System administration: maintenance, configuration and backup of servers (Windows Server 2025 including Active Directory, DNS, Linux, Solaris) and clients (Windows, Linux), network, firewalls and VPN (e.g., with WireGuard or OpenVPN)
- Virtualization (Proxmox, VMware ESXi, Veeam Backup & Replication)
- Apache web server, Certbot, server configuration with Plesk and Hestia Control Panel
- Documentation systems: Nextra, VitePress (static site generators with Markdown), draw.io (diagrams), Atlassian Confluence
- CMS: TYPO3, WordPress
- Web scraping with Node.js, Axios and Cheerio
- Cloud technologies: Oracle Cloud Infrastructure, Amazon Web Services, Hetzner, Akamai
- DevOps with GitLab, Apache Subversion, testing with Karma/Jasmine and Jenkins, GitLab CI, Docker, Portainer, LXC, Ansible, Karma (alert dashboard)
- Database administration: Microsoft SQL Server, MySQL, MongoDB, Informix and more
- Application development (REST APIs/Microservices) with Node.js/JavaScript (NVM, Socket.IO, AJAX, MySQL, MongoDB, JSON), React, Angular, TypeScript, D3.js/SVG, PHP and Python (without framework)
- AI experiments with PyTorch, TensorFlow and hardware acceleration
- AI assistance: VSCode with Ollama and local LLMs, Open WebUI and Msty
- Collaborative work using Agile, Scrum and Kanban; tools: Slack, Atlassian Jira, Trello, Microsoft Teams, Zoom, Matrix with Element, Kopano, Jitsi Meet, OTRS
- These are all technologies I've used over the years, some more, some less, and some to this day.
- At home, I have four 19-inch servers for virtualization.
Jan 2000 - Dec 2011
12 yearsVolunteer
Various Organizations
Position Summary
Volunteer at Various Organizations
Industries
Information Technology
Professional Services
Government and Administration
Business Areas
Information Technology
Operations
- Volunteer work in various social institutions in Timișoara, Bucharest, Prague, Reykjavík and other places
- Roles as IT specialist, development aid worker and translator
Jan 1999 - Dec 1999
1 yearMilitary Service
Military Service
Position Summary
Military Service at Military Service
Industries
Aerospace and Defense
Business Areas
Operations
- Six months of military service
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Professional Services, Government and Administration, and Aerospace and Defense.
Information Technology
Professional Services
Government and Administration
Aerospace and Defense
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, and Product Development.
Information Technology
Operations
Product Development
Languages
German
NativeRomanian
NativeEnglish
AdvancedFrench
AdvancedItalian
AdvancedEducation
Oct 1995 - Jun 1999
West University of Timișoara
Bachelor's degree · Computer Science · Timișoara, Romania
Certifications & licenses
Driver's license class B
Statistics
Experience
Total positions 4
Experience in Information Technology 26.5 y
Avg length 9 y 6 m
Longest experience 16 y 3 m
Global Experience
Countries worked in 1 (Germany)
Primary country Germany
Expertise
Recent roles IT Specialist/Application Developer, IT Specialist, Volunteer
Main industries Information Technology, Professional Services, Government and Administration
Main business areas Information Technology, Operations, Product Development
Qualifications
Highest degree Bachelor
Certifications earned 1
Profile
Created
Last Update
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Frequently asked questions
Do you have questions? Here you can find further information.
Where is Ioan Liviu based?
Ioan Liviu is based in Kandern, Germany and prefers 100% remote projects.
What languages does Ioan Liviu speak?
Ioan Liviu speaks the following languages: German (Native), Romanian (Native), English (Advanced), French (Advanced), Italian (Advanced).
How many years of experience does Ioan Liviu have?
Ioan Liviu has at least 27 years of experience. During this time, Ioan Liviu has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 7 years and 10 months. Note that Ioan Liviu may not have shared all experience and actually has more experience.
What roles would Ioan Liviu be best suited for?
Based on recent experience, Ioan Liviu would be well-suited for roles such as: IT Specialist/Application Developer, IT Specialist, Volunteer.
What is Ioan Liviu's latest experience?
Ioan Liviu's most recent position is IT Specialist/Application Developer at HST Systemtechnik GmbH / Axel Zangenberg GmbH.
What companies has Ioan Liviu worked for in recent years?
In recent years, Ioan Liviu has worked for HST Systemtechnik GmbH / Axel Zangenberg GmbH and Self-employed.
Which industries is Ioan Liviu most experienced in?
Ioan Liviu is most experienced in industries like Information Technology, Professional Services, and Government and Administration. Ioan Liviu also has some experience in Aerospace and Defense.
Which business areas is Ioan Liviu most experienced in?
Ioan Liviu is most experienced in business areas like Information Technology, Operations, and Product Development.
Which industries has Ioan Liviu worked in recently?
Ioan Liviu has recently worked in industries like Information Technology.
Which business areas has Ioan Liviu worked in recently?
Ioan Liviu has recently worked in business areas like Information Technology and Product Development.
What is Ioan Liviu's education?
Ioan Liviu holds a Bachelor in Computer Science from West University of Timișoara.
Does Ioan Liviu have any certificates?
Ioan Liviu has 1 certificate: Driver's license class B.
What is the availability of Ioan Liviu?
Ioan Liviu is immediately available part-time for suitable projects.
What is the rate of Ioan Liviu?
Ioan Liviu's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
How to hire Ioan Liviu?
To hire Ioan Liviu, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1200
900
600
300
Market avg: 872-1032 €
Market avg: 872-1032 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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