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THEODOROPOULOS N. — Senior E-commerce Platform Engineer from Greece

THEODOROPOULOS N.

Senior E-commerce Platform Engineer

Greece 6+ years
Open to offersNew to Platform
Languages
English
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About

Nikolaos T. is a proficient Senior E-commerce Platform Engineer and AI Automation Systems Builder with over 25 years in IT, ERP, and e-commerce operations. Based in Bangkok, Thailand, Nikolaos specializes in building production commerce systems and has deep expertise in backend automation, PHP/MySQL, Linux DevOps, and Proxmox. He is the founder of OLL4.com, an AI systems company focusing on creating AI-assisted operations and production-safe AI delivery. Throughout his career, Nikolaos has demonstrated exceptional skills in managing large-scale e-commerce platforms like the Olla Ecosystem, overseeing complex operations with over 1.3 million products and maintaining a 99.9% uptime discipline. His technical proficiency extends to designing ERP and marketplace integrations, employing AI in CRM/email operations, and ensuring reliability and security through advanced infrastructure management. Additionally, Nikolaos has a strong presence in the European market, offering remote B2B contracting opportunities without the need for an EU visa. He prides himself on his ability to deploy efficient backend solutions using Docker, Cloudflare, and a suite of reliability tools, emphasizing operational visibility and robust security protocols.

Experience

  • Founder & Systems Builder

    OLL4.com · 2026 — Present
    Established OLL4.com, focusing on AI systems that enhance automation and operational efficiency for various companies. Developed Agent OS, creating an operational framework for task management and monitoring. Designed modules for functions like CRM/email processing and financial oversight, integrating human-in-the-loop patterns for high-stakes tasks. Constructed finance dashboards that present essential business metrics and risk analysis. Managed public-facing elements of OLL4.com to facilitate client engagement while maintaining a range of private repositories on GitHub for selective proof of work.
  • Senior E-commerce Platform Engineer / DevOps Engineer

    Private E-commerce Platform / Olla Ecosystem · 2009 — Present
    Engineered and automated the Olla e-commerce ecosystem, managing platform development and infrastructure. Maintained over 40 custom CS-Cart addons for supplier imports, ERP synchronization, and payment processing. Developed essential backend functionalities including controllers, hooks, and import tools within the CS-Cart application layer. Created systems for product catalog normalization and integration with various suppliers while handling a large MySQL/MariaDB dataset exceeding 48GB with rigorous batch processing. Established middleware connecting CS-Cart with Oracle-based ERP solutions for order and inventory management. Controlled over 300 scheduled jobs for production and maintenance processes, verifying visibility and logging capabilities. Processed daily high volumes of data including API calls and product updates across integrated services. Managed Proxmox-based infrastructure supporting multiple virtual machines and LXC containers for diverse operational needs. Operated numerous Docker services for various applications, ensuring efficient monitoring and incident response.

Skills & Expertise

Education

  • Bachelor of Science in Electrical Engineering
    Technological Educational Institute of Patras, Greece