A centralized test platform
One shared foundation instead of a framework per team: common packages, one authentication model, a release process people can depend on. Solved once, used everywhere.
I build the test platform other engineers build on.
I'm Emmanuel Borja, a Senior Quality Assurance Engineer. My job moved from writing tests to running the shared service behind them: the framework, the release process, the pipelines and the AI agent toolset a whole QA organization relies on to keep its suites reliable end to end.
What I do
Suites that stay reliable
End-to-end coverage that holds up release after release. Layered page and component models, tests that wait on real conditions, and failures triaged to a root cause.
Orchestrating agentic QA
Agent skills and context tooling that encode the team's architecture, so engineers and AI agents can run any step of the QA lifecycle and get it right.
Selected work
Open source · author
Synapse
A context engine that gives any AI coding assistant the right background for the task, with a person approving every change.
- Works with four different AI coding tools
- Published on npm, with container images built automatically
- Every design decision written down and versioned
- releases
- 21
- automated tests
- 490+
- pull requests
- 82
C3 AI · platform owner
The shared test platform
The single Playwright foundation that two QA organizations build their tests on.
- Designed the architecture teams are migrating to
- Build master for nine consecutive releases
- One sign-in model across every test framework
- Moved builds to a faster, cheaper pipeline
C3 AI · direction setter
Agentic QA, end to end
Playbooks and context that let AI agents carry out real QA work the way the team does it.
- A skills library the QA team uses daily
- Covers the full cycle, from feature analysis to failure triage
- Onboarding shortened from a quarter towards day one
Personal project · quality and delivery · in progress
Architec
An interactive 3D walkthrough that lets real-estate developers present homes before they are built. I own its quality strategy and delivery plan.
- Done
- Requirements written as testable stories; automated checks on every change
- Now
- Design system and accessibility coverage
- Next
- The 3D experience and buyer journeys
Open source · my toolchain
I pick up tools fast and bend them to fit
Synapseauthor
Gives any AI assistant the right context.
Cortexauthor
Runs and health-checks always-on AI agents.
DSHintegrator
Connected through configuration alone, with no fork to maintain.
Kilocontributor
Proposed a new feature to its maintainers.
Experience
2026 — now
Senior Quality Assurance Engineer · C3 AI
Own the shared test infrastructure for two QA organizations and lead their migration to Playwright. Manage releases of the shared test package, keep end-to-end suites reliable, mentor engineers, and set direction for AI-assisted and agentic testing.
2025 — 2026
QA Automation Engineer II · C3 AI
Took an AI content-generation application to full automated regression. Designed a composition-based package architecture and standardized the branching and release flow for the automation package shared across application teams.
2023 — 2025
QA Automation Engineer I · C3 AI
Owned automation and patch-release sign-off for an industrial reliability application; rebuilt its test repository on a structured page-object framework.
2023
QA Engineer Intern · C3 AI
Test execution, defect reporting and fix verification.
How I work
- Solve it once, share it. A fix that lives in one team's repo is a fix the next team rewrites.
- Model the domain, not the DOM. Tests read like the product.
- Honest green. A known defect stays visible; it is never skipped to make a run pass.
- No arbitrary waits. Assertions that retry, not sleeps.
- Agents propose, people approve. Every automated change is a reviewable diff.
- Write the decision down. So the next person knows why.
Stack and background
Automation
- Playwright
- Selenium
- POM / COM
- Test-data factories
- API testing
- Accessibility checks
Languages
- TypeScript
- JavaScript
- Python
- SQL
- Shell
AI tooling
- MCP servers
- Agent orchestration
- Hybrid retrieval
- Local models
Delivery
- GitHub Actions
- Jenkins
- Docker
- Git-Flow
- Semantic versioning
Education
BS Biomedical Engineering
Tecnológico de Monterrey, 2023. Graduated with honors, 93/100 average (about 3.7 on the US 4.0 scale). International research internship in biomaterials, 2022. English C1.
Open to conversations
Let's talk test architecture.
Happy to talk about test platforms, agentic QA or a project you have in mind.
Guadalajara, Mexico
Or write to me here