Tomas Castro
Agentic AI Engineer
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About
Designed and built a custom warehouse and order-lifecycle system tracking purchases, sales, sorting, picking, packing, and shipping across sales channels — eliminating daily hours of item searches and cross-platform oversells.
Built
Claude-driven email-marketing tools integrated with Shopify so non-technical staff run campaigns through natural-language instructions instead of dashboards. Diagnosed and fixed long-standing Shopify storefront bugs and led the physical warehouse reorganization the new inventory system was designed around.
Experience
Agentic AI Engineer at Golden State Memorabilia (2025-09 – Present)
- Designed and built a custom warehouse and order-lifecycle system tracking purchases, sales, sorting, picking, packing, and shipping across sales channels — eliminating daily hours of item searches and cross-platform oversells.
- Built Claude-driven email-marketing tools integrated with Shopify so non-technical staff run campaigns through natural-language instructions instead of dashboards.
- Diagnosed and fixed long-standing Shopify storefront bugs and led the physical warehouse reorganization the new inventory system was designed around.
AI Architect (Contract) at Funder's First (2025-07 – 2025-09)
- Engineered AI voice agents using OpenAI and Twilio APIs to automate customer interactions and sales workflows.
- Built real-time CRM automation to prefill and send DocuSign agreements, and a unified CRM workflow layer across HubSpot, Salesforce, and Zoho using Node.js and Supabase.
- Automated email, SMS, and call logging across platforms, with Slack-based AI alerting for live call updates and daily performance reporting.
Account Manager at National Credit Partners (2024-11 – 2025-06)
- Prospected and engaged small-to-mid-sized business owners to introduce debt-resolution and debt-modification services.
- Managed inbound and outbound client communications while maintaining CRM accuracy.
Sales Development Representative at Zip Capital Group (2022-07 – 2024-08)
- Conducted high-volume outbound prospecting to generate qualified leads for business financing solutions.
- Supported account executives throughout the closing process and trained new hires.
Lead Account Executive at Elysian & Company (2020-08 – 2022-04)
- Conducted high-volume outbound prospecting and inbound qualification while supporting account executives through close.





