Ioan Liviu Popa-IT Specialist/Application Developer
Check rate
Experience
IT Specialist/Application Developer
HST Systemtechnik GmbH / Axel Zangenberg GmbH
- 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.
IT Specialist
Self-employed
- 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.
Volunteer
Various Organizations
- Volunteer work in various social institutions in Timișoara, Bucharest, Prague, Reykjavík and other places
- Roles as IT specialist, development aid worker and translator
Military Service
Military Service
- 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.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, and Product Development.
Languages
Education
West University of Timișoara
Bachelor's degree · Computer Science · Timișoara, Romania
Certifications & licenses
Driver's license class B
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Ioan Liviu is based in Kandern, Germany and prefers 100% remote projects.
Ioan Liviu speaks the following languages: German (Native), Romanian (Native), English (Advanced), French (Advanced), Italian (Advanced).
Ioan Liviu has at least 28 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 11 months. Note that Ioan Liviu may not have shared all experience and actually has more experience.
Based on recent experience, Ioan Liviu would be well-suited for roles such as: IT Specialist/Application Developer, IT Specialist, Volunteer.
Ioan Liviu's most recent position is IT Specialist/Application Developer at HST Systemtechnik GmbH / Axel Zangenberg GmbH.
In recent years, Ioan Liviu has worked for HST Systemtechnik GmbH / Axel Zangenberg GmbH and Self-employed.
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.
Ioan Liviu is most experienced in business areas like Information Technology, Operations, and Product Development.
Ioan Liviu has recently worked in industries like Information Technology.
Ioan Liviu has recently worked in business areas like Information Technology and Product Development.
Ioan Liviu holds a Bachelor in Computer Science from West University of Timișoara.
Ioan Liviu has 1 certificate: Driver's license class B.
The availability of Ioan Liviu needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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