Full-Stack Software Engineer · ~5 years shipping production software · Open to part-time & freelance work
🏢 Software Engineer at Trustabl AI · previously Component Factory, Hooli Software and Carbonetes 🔧 Member of the Jenkins CI GitHub organization — verify here 🌐 Portfolio: sairenchristianbuerano.github.io/portfolio 📍 Philippines 🇵🇭
I build and maintain real-world systems — from enterprise security platforms to AI agent tooling — and I care about shipping reliable, well-documented code that businesses can depend on.
Designed, built, and published the full CI/CD integration lineup for Trustabl, a static reliability/safety analyzer for AI agent repos (Claude Agent SDK, OpenAI Agents SDK, Google ADK, MCP). Each integration scans the repo, scores readiness/risk, and gates the pipeline.
| Platform | Integration | Where it lives |
|---|---|---|
| GitHub | Composite Action | GitHub Marketplace |
| GitLab | CI/CD Component | GitLab CI/CD Catalog |
| Azure DevOps | Pipeline Task Extension | Visual Studio Marketplace |
| Bitbucket | Pipelines Pipe | Docker Hub |
Bash, TypeScript, Docker, jq, four different CI/CD platform APIs — same scoring engine, four native developer experiences.
Took Trustabl from "available if you know the link" to listed in the catalogues developers actually browse. Each listing meant meeting that platform's own review bar: manifest format, security scanning, and in one case a human reviewer.
| Directory | What I shipped | Status |
|---|---|---|
| MCP Registry | server.json + OCI ownership attestation, published with mcp-publisher |
Live — io.github.trustabl/agent-reliability-analyzer |
| Claude Directory | Plugin with 2 skills, 2 commands, a subagent and a bundled MCP server | Published — passed the security scan and reviewer |
| in-toto | Supply-chain attestation integration | Submitted |
Testing each listing the way a new user would — installing from the published entry rather than the repo — caught a defect that every automated validator had passed.
| Project | What it does | Stars | Downloads |
|---|---|---|---|
| agent-reliability-analyzer | Static reliability/safety analyzer for AI agent repos (Claude Agent SDK, OpenAI Agents SDK, Google ADK, MCP) |  |
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| agent-reliability-rules | Detection rule packs powering the scanner — resolved at scan time, no rebuild needed |  |
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Contributor to security tools used by real organizations:
| Project | What it does | Stars | Downloads |
|---|---|---|---|
| Jacked | Vulnerability scanner |  |
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| Diggity | SBOM generator |  |
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| BrainIAC | IaC static analysis |  |
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Security tooling (SAST, SBOM, vulnerability scanning) · REST APIs · Git · CI/CD architecture · AI-assisted engineering — I use Claude (Claude Code) daily to ship faster without cutting corners
- Software Engineer @ Trustabl AI (current) — AI agent reliability & tool hardening; built the entire CI/CD integration suite above
- Software Engineer @ Component Factory (Nov 2025 – Mar 2026) — built Stable Innovations, an AI agent component platform; Golang, Python, Next.js, PostgreSQL, Docker, Tailwind, TypeScript
- Software Engineer @ Hooli Software — software development services
- Software Engineer @ Carbonetes — container application security platform (SaaS); shipped open-source scanners
Part-time or freelance roles (10–20 hrs/week) where I can:
- Maintain and extend production full-stack applications
- Debug across frontend, API, and database layers
- Improve reliability, auth/permissions, and deployment workflows
I'm a responsive communicator, comfortable working independently, and easy to collaborate with — including non-technical stakeholders.
"Every implementation is proof of what we have learned." 🐱