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Achievement: YOLOAchievement: Pull Shark

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jacobv25/README.md

Jacob Valenzuela

Full-stack engineer: Java/Spring Boot and React/TypeScript. Four years on a 20-engineer team at KBR, where I led the adoption of automated testing and built the team's first flow-analytics dashboards. I build software with AI agents every day, and I ship the evidence: tests, CI, evals, demo modes.

Portfolio: jacobv25.github.io · LinkedIn: jacob-valenzuela

Featured

Project What it is
ado-flow-metrics Flow metrics for Azure DevOps teams: WIP and PR aging, throughput, cycle time, Monte Carlo forecasting. An "Explain with AI" feature backed by an 11-case eval harness with deterministic graders and an LLM judge. Vitest + Playwright, CI, demo mode.
mise React Native cooking companion built around mise en place. A markdown-to-JSON recipe pipeline with parser contract tests. 72 Jest tests, CI.
speedhell A browser bullet-hell with zero dependencies, built through a builder / blind-critic / deterministic-referee loop. Playable.
undertow Android app that interrupts doomscrolling with a friction overlay (AccessibilityService). CI, releases, MIT.
pg-tuning-lab PostgreSQL schema-design and query-tuning lab: every optimization measured before and after with EXPLAIN (ANALYZE, BUFFERS) on ~2M rows.

Open to remote roles, and to relocating for the right team.

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  1. ado-flow-metrics ado-flow-metrics Public

    Flow metrics for Azure DevOps teams: WIP aging, PR aging, throughput, cycle time, Monte Carlo forecasting. Local app, PAT stays server-side. Demo mode included.

    JavaScript

  2. mise mise Public

    React Native cooking companion built around mise en place: recipes with sodium/protein badges, prep checklists, pantry. Markdown-to-JSON recipe pipeline with parser contract tests. 72 Jest tests, CI.

    TypeScript

  3. pg-tuning-lab pg-tuning-lab Public

    PostgreSQL schema-design and query-tuning lab on an auto-repair-shop schema: every optimization measured before and after with EXPLAIN (ANALYZE, BUFFERS) on ~2M rows.

    TypeScript

  4. speedhell speedhell Public

    Psikyo-style vertical bullet-hell shmup in the browser — zero dependencies, built with a builder/blind-critic gauntlet loop and a deterministic sim referee

    JavaScript

  5. undertow undertow Public

    Android app that interrupts doomscrolling with a friction overlay (AccessibilityService)

    Kotlin

  6. jacobv25.github.io jacobv25.github.io Public

    Portfolio site: hand-written HTML/CSS, no build step, dark mode, case studies.

    HTML