Michelle Byrnes headshot

Michelle Byrnes

Staff software engineer | Research tools and ML systems

I’m a staff software engineer with 10 years of experience building full-stack tools and infrastructure for engineers, researchers, and other technical users. I turn ambiguous workflows into experiment platforms, real-time visualizations, AI telemetry, and reliable production systems. Recent work spans React, TypeScript, Python, PyTorch, PHP, Redis, Elasticsearch, and the Model Context Protocol.

Professional experience

Staff Software Engineer

Automattic December 2023 - Present
  • Built a privacy-preserving telemetry platform for AI developer-tool usage, spanning TypeScript/PHP log normalization, authenticated ingestion, reconciliation, and token/cache analytics. Upstreamed a reusable authenticated post-call hook to a public MCP proxy and redesigned reconciliation as an isolated paginated job to bound memory and retained state.
  • Built a PHP and React self-service platform that encoded governance and architectural defaults into repeatable performance tests, reducing execution time by 98%.
  • Built a Node.js and TypeScript observability service that combines New Relic and k6 data with sandboxed coding agents to investigate concurrency bottlenecks, generate candidate patches, and preserve decisions in ADRs, reducing optimization cycles by 40%.
  • Led performance initiatives that reduced origin latency by 12%–24%, using New Relic profiling and distributed k6 tests in Grafana Cloud to validate behavior under load.
  • Led reliability engineering for a global live event that generated more than one billion requests. Designed a stale-while-revalidate object-cache strategy with TTL jitter, maintaining 100% availability and a 99.6% cache-hit rate during peak traffic.
  • Led rapid prototypes with external engineering teams, translating platform constraints into working proofs of concept that progressed into production integrations.

Skills and tools

TypeScript PHP React Node.js Kubernetes Docker New Relic k6 Grafana Cloud MySQL Elasticsearch Logstash MCP

Senior Software Engineer

Automattic December 2022 - December 2023
  • Led a cross-functional effort to turn internal command-line utilities into a user-facing self-service product, eliminating 37% of annual manual intervention requests.
  • Built guarded automation for routine database operations, reducing delivery time by 70% while keeping destructive actions constrained and reviewable.
  • Interviewed engineers and operational stakeholders, translated recurring friction into product requirements, and used those findings to shape the tooling roadmap.

Skills and tools

PHP Node.js React Shell Kubernetes Nginx MySQL Elastic/Logstash/Kibana (ELK)

Software Engineer

Automattic May 2022 - December 2022
  • Led complex escalations across Kubernetes, PHP, SQL, and Elasticsearch. Combined production debugging with durable monitoring and tooling improvements so similar failures became easier to detect and diagnose.

Skills and tools

Kubernetes PHP MySQL New Relic Elasticsearch Linux Shell Nginx Node.js

Independent Contractor, Ohio Black Press in the 19th-Century

Lorain County Community College, OH December 2021
  • Advised metadata changes that improved search accuracy by 250%.
  • Designed client side solutions given server side restrictions.
  • Researched, reviewed, and customized platform tools and features to be leveraged and maintained by non technical users.

Skills and tools

PHP JavaScript MySQL Omeka S

Independent Contractor, Howard Zinn Project

Teaching for Change, Washington DC November 2021
  • Engineered an interface that eliminates 75% of redundant labor.
  • Revised a theme to optimize the UI by decreasing excessive clicks by 66%.
  • Led technical training workshops and published theme documentation.

Skills and tools

WordPress PHP JavaScript MySQL

Lead Developer and Co-Chair

Colored Conventions Project, Penn State University August 2016 - May 2022
  • Built search and discovery interfaces that increased relevant content delivery by 350%, helping researchers and the public navigate a large collection of historical materials.
  • Designed a data-import process that reduced ingestion time by 99% and standardized metadata to reduce long-term maintenance.
  • Led a platform migration, developed contributor-facing publishing tools, and wrote a WordPress curriculum that enabled nontechnical collaborators to create and maintain digital exhibits.

Skills and tools

PHP Ruby on Rails Solr Elasticsearch WordPress Omeka S Linux Apache

Research and open source

Tidal Language Model

View on GitHub

An independent research platform for studying adaptive computation in language models.

  • Built a roughly 30.6-million-parameter gated Transformer in PyTorch with external PPO-controlled modulation and input-dependent per-token gates.
  • Built the surrounding research platform with Fastify, React, Redis, SSE streams, background orchestration, local and remote GPU execution, checkpoint management, generation comparison, and exportable reports.
  • Ran three controlled RL-gating experiments that consistently underperformed neutral gating. Traced the failure to the constrained action space, documented the negative result, and changed the research direction.
  • Implemented input-dependent gates with 0.01% parameter overhead and pre-registered quality, sparsity, and adaptivity criteria. Added an MCP interface with a lazy disk cache for AI-assisted experiment analysis.

Skills and tools

Python PyTorch TypeScript React Fastify Redis SSE MCP Experiment Orchestration Model Evaluation

Pokémon Emerald Battle Frontier

View on GitHub

A released Pokémon Emerald modification built in C for the Game Boy Advance.

  • Starts players at the Battle Frontier, adds an in-game team editor with legal Generation III move validation, and introduces independently tracked Hard modes across all seven facilities.
  • Includes 12 deterministic C gameplay suites and 19 input-driven mGBA scenarios with fixed RNG seeds, isolated save state, path-based CI selection, and memory-headroom gates.
  • Uses a reproducible release pipeline that verifies the production build, generates checksummed BPS patches, and excludes copyrighted ROMs and test binaries from published artifacts.

Skills and tools

C Python ARM/GBA Toolchain mGBA GitHub Actions Deterministic Testing Release Engineering

Community and outreach

Volunteer Builder

Out in Tech Digital Corps Build Days Three events
  • Volunteered on three time-boxed nonprofit builds. Developed WordPress templates and query-driven pages and translated technical decisions into clear next steps that helped the team keep delivery on track.

Skills and tools

WordPress Technical Communication Team Collaboration

Skills summary

ARM/GBA Toolchain Apache C Deterministic Testing Docker Elastic/Logstash/Kibana (ELK) Elasticsearch Experiment Orchestration Fastify GitHub Actions Grafana Cloud JavaScript Kubernetes Linux Logstash MCP Model Evaluation MySQL New Relic Nginx Node.js Omeka S PHP PyTorch Python React Redis Release Engineering Ruby on Rails SSE Shell Solr Team Collaboration Technical Communication TypeScript WordPress k6 mGBA