Learning products, built with care.
KodaBloom LLC builds focused tools that help people learn — from families preparing for admissions tests to engineers moving into the new world of AI.
Our Products
SigmaDojo
sigmadojo.comRealistic ISEE Primary practice tests for grades 2, 3, and 4 — the same rigor as the real exam, without the artificial cruelty. Built for kids and the parents coaching them.
- Full-length practice tests for grades 2, 3, and 4 — the first full test in every grade is free
- 26 fresh tests per grade, dripped weekly through the admissions year
- Difficulty ladder calibrated to the real ISEE, so tests get harder as your child is ready
- Authentic Reading and Math sections — plus a spoken Auditory section for Grade 2
- No hard time cutoff: keep working past the clock and get two scores — a timed ISEE score and an untimed knowledge score
- Parent-friendly difficulty labels on every test, so you always know what you're assigning
- Works in any browser and on iPad
AI Engineer Dojo
aiengineerdojo.comHands-on courses on the AI-engineering roles that emerged after LLMs. They teach with real numbers, real case studies, and code you actually run — not surface-level summaries.
- Self-paced online courses on brand-new AI-engineering job categories
- Every chapter pairs a deep worked read and a full case study with the concepts
- A free-to-run, $0 hands-on lab in every chapter — real Anthropic SDK code, offline by default
- Reasoning checkpoints that test judgment and point you back to exactly what to review
- Three roles live, each written in three editions: new grad, working engineer, and manager / founder
- Free sample chapter plus an open-source lab repo to try before you buy
The AI Engineer Dojo Library
Each role ships as a complete course and book, in three editions tuned to where you are in your career.
AI Evaluation Engineer
Course + BookMeasure whether AI systems actually work — building eval harnesses, golden sets, LLM-as-judge, and CI gates that catch regressions.
AI Search / RAG Engineer
Course + BookBuild retrieval-augmented systems end to end — chunking, embeddings, hybrid retrieval, reranking, grounded answers with citations.
AI Agent Engineer
Course + BookEngineer agents that take action — tools and function calling, the agent loop, memory, reliability, and human-in-the-loop permissions.