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Software Engineer

Mateo Osorio Delhonte.

I build software that shows its work — reliable systems, developer tools, and grounded AI.

Engineered so every claim is traceable, and missing data is never mistaken for failure.

01 Selected work

Selected work

Full Stack · Developer Tools

RepoSignal

Software that evaluates how software is being engineered.

Point it at any public GitHub repository and it reports how the project is actually run — activity, PR flow, CI, documentation, hygiene — as a deterministic score where every number is traceable to the public evidence it came from.

  • 477 tests + 22 e2e specs
  • deterministic scoring
  • MIT
A StudyForge study session showing a flashcard with rating buttons that display the real interval each answer would schedule

Full Stack · AI

StudyForge

A local-first study system that ingests the notes and PDFs you already have, extracts the concepts worth learning, and drills them with FSRS-6 spaced repetition. Fully functional with zero AI configured.

02 How I build

How I build

01

Evidence before claims

A score you cannot audit is not worth showing. RepoSignal links every number to the public data behind it, and TraceMark refuses to save a quote without its source.

02

Deterministic core, AI at the edges

Scores, schedules, and verdicts come from pure, tested functions. StudyForge works fully with no AI configured — a model may explain results, never compute them.

03

Honest unknowns

Missing data is not evidence of failure. Unmeasured values stay null, Gatehouse returns UNKNOWN instead of guessing, and a rate with no sample renders as “—”, never as 0%.

03 Grounded AI

Grounded AI

Retrieval first.
Then reasoning.

AI is most useful when it can retrieve trustworthy evidence before it reasons — and when the system around it decides what the model is allowed to touch.

  1. Question
  2. Retrieve context — code, docs, data
  3. Rank + select evidence
  4. Model reasons over what was found
  5. Evidence-backed output
  6. Validate before anything ships

04 Experience

Experience

AI engineering at SolutionStream, building client-facing product — AI-driven features, React and Next.js frontends, APIs and PostgreSQL data systems, and the QA and release validation that keeps them trustworthy.

05 Open source

Open source

07 — Contact

Let’s build something useful.

I’m happiest working where reliability, tooling, and product quality meet. If that’s your team, say hello.

Portrait of Mateo Osorio Delhonte