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10+ years architecting enterprise platforms, modernizing legacy systems, and implementing CI/CD pipelines using Node.js, TypeScript, AWS, and the modern ecosystem.
I'm Cristian, specialized in building reliable, scalable, and cost-efficient systems. My work is driven by a strong focus on architecture, performance, observability, and improving developer experience. I enjoy turning ambiguous requirements into clean, stable, and well-documented solutions that move the business forward.
Full-stack event-driven platform with a live ops console: a NestJS API and resilient worker over SQS/SNS (DLQ, circuit breaker), observable end to end in a real-time Next.js dashboard.
Reliability and infrastructure-as-code: Circuit Breaker (Opossum), fail-fast config (Zod) and structured logs (Pino), provisioned with Terraform and shipped as multi-stage Docker. Load-tested with k6.
A focused deep-dive into messaging: at-least-once order processing over AWS SQS/SNS with Dead Letter Queues, retries with backoff and idempotent handlers.
Resilient APIs, messaging systems, caching strategies, observability, and Cloud-Native architectures optimized for high scale and reliability.
Incremental refactoring, test coverage, CI/CD pipeline implementation, and safe database migrations with Zero Downtime.
High-performance UX for SPAs and SSR: Core Web Vitals optimization, lazy loading strategies, code splitting, asset management, and accessibility (A11y).