Shopify fulfillment & tracking
Connect Shopify fulfillment, shipment tracking, and customer notifications through a database-backed queue with checks and recovery monitors.
Documented client systemRead case study
Connected systems.
Clearer operations.
01 / THE APPROACH
Clear requirements.
Accountable automation.
Every integration needs defined responsibilities,
visible state, and a recovery plan.
01
Define the process
Map the operational problem, system requirements, and responsibilities before building the workflow.
02
Design the controls
Connect the data and decision rules, with clear points for human approval and escalation.
03
Validate recovery
Test retries, incomplete actions, and exception handling so recovery is part of the design.
02 / SELECTED WORK
Automation for
operational challenges.
Four documented systems.
Explore architecture, controls, and test evidence.
4 projects
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Priority support & alerts
Acknowledge critical customer confirmations and notify administrators of high-priority tickets in Telegram, with staff approval for customer replies.
Tested · awaiting handoffRead case study
Recruitment & interview scheduling
Structure application evidence and coordinate interview scheduling, with explicit review criteria, audit records, and human hiring decisions.
Portfolio demonstrationRead case study
AI-assisted support drafts
Generate email drafts from order, product, and conversation context, with controlled delivery rules and human review for sensitive cases.
Portfolio demonstrationRead case study
03 / ABOUT US
Engineering businesses.
Connected operations.
CNexa Solutions connects business tools and everyday operations through practical automation.
Founded and led by John Rey Cretesio, the work spans ecommerce fulfillment, customer support, and recruitment, with an engineering perspective on how processes fit together.
Meet the founder
John Rey Cretesio
Founder · AI Automation Engineer
Registered Mechanical Engineer
I build automation that connects business tools and keeps everyday work moving. My engineering background shapes how I approach each process, handoff, and recovery path.
- Foundation
- BS in Mechanical Engineering, Eastern Visayas State University. DOLE-accredited Safety Officer II.
- Experience
- n8n systems for fulfillment and customer support, plus portfolio projects in AI-assisted replies and recruitment.
- Direction
- Learning AI through hands-on projects, with the goal of bringing it into mechanical processes and engineering operations.
04 / LET’S CONNECT
Discuss your workflow.
Plan the next step.
Open to automation projects, engineering collaborations, and AI engineering opportunities.
johnreycretesio.prof21@gmail.com