I'm Hyalen Caldeira

Hyalen M. Caldeira

Senior Software Engineer | AI & Full-Stack | DevOps/SRE & Cloud

I'm a Senior Software Engineer specializing in AI applications and high-impact systems that scale in production. My focus is combining deep technical reasoning with hands-on engineering to deliver solutions that work reliably under real-world conditions.

I'm currently deep in the AI space - building AI solutions with LangChain/LangGraph/MCP, and Python, implementing RAG pipelines, and designing agentic workflows that solve real business problems. I also work across backend development (Java/Spring/TypeScript), SAP BTP/CAP/CPI, and DevOps/SRE automation with observability tooling like Grafana, Splunk, and Dynatrace.

Whether I'm architecting AI solutions, refactoring legacy systems, building cloud-native applications, or automating operational workflows, my approach stays consistent: understand the problem deeply, design with scale in mind, and ship software that delivers impact.

I thrive in environments where software engineering meets systems thinking - where the challenge isn't just writing code, but solving the right problem in a way that teams can build on.

I actively design and build advanced AI systems, including a public, source-available platform for reverse engineering enterprise COBOL applications, developed independently in parallel with my professional work, by combining compiler theory, graph-based program analysis, and selectively orchestrated LLM workflows.

➤ Certifications: HashiCorp Terraform Associate | CKAD | AWS SysOps Administrator | AWS Developer | Cloud Foundry Certified Developer | Java

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