@oziomaochin
About
Senior Backend Engineer with 5+ years building and scaling production systems in Java and Spring Boot.
I write about architecture, system design trade-offs, and the failure modes most documentation ignores. No fluff — just practical, experience-driven engineering insights.
Open to senior backend and technical writing opportunities.
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Ozioma Ochin's blogs
Recently published
Engineers Don't Want to Search Logs. They Want to Know What Broke.
Apr 21 · 12 min read · It's 7 pm on a Friday and production is on fire. Your weekend is off to a great start. Obviously. Your Payment service is throwing errors and your company is losing revenue. You open your log tool, fi
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Semantic Search Is an Architecture Problem — Not an Embedding Problem
Apr 11 · 14 min read · Most semantic search systems don’t fail at the embedding layer. They fail at the architecture layer. When I started building a semantic search API with Spring Boot and pgvector, I expected the hard pa
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Building a Semantic Search API with Spring Boot and pgvector — Part 4: The Service Layer.
Apr 5 · 11 min read · This is Part 4 of a series building a production-ready semantic search API with Java, Spring Boot, and pgvector. Part 1 covered the architecture. Part 2 defined the schema. Part 3 handled the embeddi
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