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Bobby Fiando - Senior Backend Engineer

Deep dives into backend engineering, system design, and technical execution.

Portfolio Highlights

Four case studies focused on backend reliability, product delivery, and measurable outcomes.

AI Homework App
NestJSLaravelPostgreSQLAWS LambdaOpenAI

Improved AI homework workflows with stronger quality checks, clearer processing stages, and safer publishing controls.

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IoT Smart Home App
NestJSGraphQLPostgreSQLRedisKafka

Improved lock and device reliability by standardizing event handling, stabilizing recurring access, and expanding alert coverage.

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One-Click Checkout
REST APILaravelPayment GatewaysQueue WorkersFeature Flags

Rebuilt one-tap checkout to reduce latency, improve payment reliability, and support safer rollout in production.

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Music Agreement Workflow
Node.jsTypeScriptPostgreSQLPrismaCron Jobs

Improved agreement lifecycle and signature workflows with clearer status tracking and stronger reminder automation.

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