Jan Winkler
@janwinkler
I build AI-assisted internal tools, ERP integrations, and workflow automations for business operations.
CzechiaWhat I'm looking for
I've administered Helios ERP for more than 60 users at Bucher Denwel, supporting sales, finance, logistics, and production. I automated order entry processes to reduce processing time by approximately 30% and integrated ERP systems with DMS and external devices.
I build SQL queries, reports, and data exports, administer MS SQL databases, train ERP users, and optimize business processes alongside IT vendors and implementation teams.
As a freelance AI Automation Developer, I rapidly prototype web applications and internal tools using JavaScript, HTML, CSS, and AI-assisted development tools including Gemini Code Assist and Claude. My work includes data, PDF, and OCR workflow automation, JSON and CSV processing, scripting, and debugging AI-generated code.
I've also developed Ren'Py games, Python web-scraping tools, OCR and PDF-generation applications, and JavaScript browser games. My earlier work as a co-owner and sales team supervisor strengthened my experience in accounting, logistics, supplier management, customer communication, and operational process improvement.
Experience
Work history, roles, and key accomplishments
AI Automation Developer
Freelance
Jul 2025 - Present (1 year 2 months)
Developed small web applications using JavaScript, HTML, and CSS. Automated data, PDF, and OCR workflows, and used AI-assisted development tools for rapid prototyping.
ERP Administrator/ERP Systems Specialist
Bucher Denwel
May 2022 - Jul 2025 (3 years 2 months)
Administration of Helios ERP system for more than 60 users across all company departments.
Database administration and work with MS SQL.
Automation of order entry processes, reducing processing time by approximately 30%.
Integration of ERP system with DMS and external devices.
Creation of SQL queries, reports, and data exports.
Analysis and optimization of business processes.
Sales Team Supervisor
CCPorter
Jul 2021 - May 2022 (10 months)
Managing a team of 5 sales representatives
Communication with international customers (English, German).
Cooperation with IT on CRM and software issues.
Translation of business materials.
Software Developer
Freelance
Feb 2019 - Apr 2022 (3 years 2 months)
Development of games in Ren’Py.
Programming game logic and dialogue systems.
Creating 3D graphics in DAZ 3D.
Game localization cooperation.
Project structure design and scripting.
Partner/Co-owner
AMMC
Jun 2011 - Feb 2021 (9 years 8 months)
Invoicing, accounting, and database management.
Logistics and supplier management.
Inventory optimization.
Negotiation with suppliers and partners.
Implementation of processes to improve order accuracy.
Education
Degrees, certifications, and relevant coursework
Banking Institute University
Banking
2011 - 2013
Unfinished studies in Banking focused on financial markets, accounting, economics, and business processes.
Czech Technical University
Engineering Mechanics
2010 - 2011
Unfinished studies in Engineering Mechanics covering basic technical and mathematical subjects.
Grammar School Arabska
High School Diploma, General Studies
2004 - 2008
High school diploma with focus on languages, natural sciences, and IT.
Tech stack
Software and tools used professionally
Availability
Location
CzechiaAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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