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Charbel KahwajiCK
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Charbel Kahwaji

@charbelkahwaji

I build secure AWS platforms, AI products, integrations, and observable production systems.

Lebanon
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At Aspire Software's Sadie AI, I own the full lifecycle of a voice-AI SaaS platform, from product features and AWS infrastructure to production-readiness security audits. I built the Terraform module that standardized the platform's architecture and supported 12+ production integrations.

I build observability into systems from day one, including a cross-integration SigNoz dashboard and an OpenTelemetry-to-SigNoz metrics and tracing pipeline. I also identified instrumentation gaps that recovered 13,261 unmarked-error spans.

I’ve built and owned HubSpot, Veloce, Libro, OpenTable, and iVvy integrations, including a standalone AWS Lambda-based HubSpot pipeline. My work reduced a POS integration’s API-error transfer rate by about 83%, while AI triage and prompt optimization saved $1,000 and 41 million tokens.

Previously at Valpay and Zero&One, I led React interfaces, migrated legacy software from Azure to AWS, built serverless management tools, automated deployments, and mentored junior engineers. I bring 7+ years of end-to-end delivery across TypeScript, React, Node.js, Python, AWS, Terraform, CI/CD, security, and UX.

Experience

Work history, roles, and key accomplishments

AA

Senior Engineer

Aspire Software - Sadie AI

Jul 2025 - Sep 2026 (1 year 2 months)

Owned the full lifecycle of a voice-AI SaaS platform, shipping product features, architecting cloud infrastructure, and leading production-readiness security audits. Built reusable Terraform modules, observability pipelines, and third-party integrations.

Education

Degrees, certifications, and relevant coursework

Conservatoire National des Arts et Métiers logoCM

Conservatoire National des Arts et Métiers

Bachelor's degree, Computer and Information Sciences, General

2017 - 2020

Pursued a Bachelor's degree in Computer and Information Sciences, General, from 2017 to 2020.

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