
Jonnathan R.
Data Engineer, Python, SQL, RAG Chatbots and AI Automation
Skills

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Portfolio
Work experience
Independent AI Automation Projects
Self-Employed / Freelancer • Self-employed
Jan 2026 - Present • 9 mos
Building practical AI automation projects focused on customer support, lead qualification, RAG systems, workflow automation, and CRM integrations. Developed practical demo solutions using Python, AI agents, vector databases, APIs, and automation tools for real-world business use cases. Projects include AI customer support agents using company knowledge bases, lead qualification workflows with scoring and CRM integration, and automated data-processing solutions. Focused on creating clear, reliable, and business-oriented AI solutions with flexible deployment and privacy options.
Payroll & Timekeeping Assitant
SACO® • Full-time
Feb 2022 - Nov 2022 • 9 mos
Supported payroll and timekeeping processes by reviewing employee hours, overtime, attendance records, and payroll-related data. Maintained and updated employee information, prepared reports in Excel, verified data accuracy, and supported administrative HR processes. Worked with structured employee data and internal systems to improve record accuracy, reporting, and day-to-day payroll operations.
Payroll Specialist | HR Operations
Dole • Full-time
May 2020 - Feb 2021 • 9 mos
Managed payroll-related employee data, validated records, and supported accurate payroll processing and HR operations. Used Excel, AS400, and reporting tools to analyze information, identify discrepancies, and improve data accuracy. Prepared operational reports and KPI tracking to support payroll, HR, and business decision-making.