Jack

Integration and Automation Developer

Freelancer • Freiberufler

Jul 2025 - Present • 1 yr 2 mos

Developed custom integrations and automation tools for e-commerce workflows, focusing on reducing repetitive manual tasks and improving data consistency. • Built C#/.NET applications for processing supplier data from CSV, XLS, and XLSX files. • Developed integrations with Shopify and other e-commerce platforms using REST and GraphQL APIs. • Implemented product and inventory synchronization based on SKU matching and business rules. • Created data validation, audit, reporting, and error-handling workflows to make automated processes easier to monitor and troubleshoot. • Worked with JSON, REST APIs, SQL, Git, and GitHub. • Delivered custom solutions based on each client's workflow and requirements, with a focus on reliability and clear communication.

Electroninc Technician

Argentinos • Vollzeit

Sep 2014 - Present • 12 yrs

Provide technical support, troubleshooting, maintenance, and diagnostics for railway communication and electronic systems in a professional operational environment. • Diagnose and troubleshoot hardware, electronic, communication, and GPS-related issues. • Perform preventive and corrective maintenance on technical equipment and communication systems. • Analyze technical failures, identify root causes, and implement practical solutions. • Work with TETRA radio communication systems and related equipment. • Perform equipment testing, configuration, replacement, and verification. • Follow technical procedures and documentation while working in an operational environment where reliability is critical. • Coordinate with other technical teams to resolve incidents and maintain system availability. • Apply systematic problem-solving and hands-on technical skills to diagnose issues efficiently.