About meAvailable for projects
I'm Celestino Salim, a Senior Software Engineer specializing in agentic AI systems and product engineering: RAG, voice interfaces, LLM evaluation, and cost optimization.
I don't wait to be an expert before I start building. New framework, unfamiliar industry, problem I have never seen: I dive in, learn what I need, and ship something real.
Founder and engineerArepa.AI
Multi-agent platform that turns business ideas into structured roadmaps, implementation plans, and production-ready websites.
Senior Software EngineerEventbrite
Tier-1 SEO and growth systems: distributed indexing and sitemap pipelines on Airflow, dbt and Snowflake, measured with controlled experimentation in Statsig.
Senior Software EngineerFlowWest
Migrated 30 years of dBase III records to cloud infrastructure on GCP: PostgreSQL and Python ETL, cutting manual entry by 80%.
Software EngineerESLWorks
First engineering hire: NLP evaluation and subscription systems for a chat-based English training platform.
11 courses and 79 lessons pulled from these same projects. $25, once, forever.
