Software Engineering
Backend-leaning full-stack work, from data model to API to deploy.
- Ruby on Rails
- PostgreSQL
- REST APIs
- Docker
- Git / GitHub
- CI/CD
- SQL / Redash
- JavaScript
- Astro & Tailwind CSS
- Networking fundamentals
Software & AI Engineering + International Relations · Brazil (UTC−3)
Software that ships, AI that holds up in production.
I’m , a Software & AI Engineer and International Relations undergraduate. I work on LLM-based systems, agent automation and QA for a US construction-procurement platform. I build the pipeline, the prompts and the tests that prove it all works — with an eye on the markets where software operates.
- Software Engineering
- AI Engineering
- Prompt Engineering
- QA & Automation
- MCP
- International Relations
02 / About
Engineering, AI and a global point of view, in the same person.
I work as a contractor at SubBase — a US construction-procurement SaaS platform — through Codengage. I own the human-in-the-loop data work, prompt engineering and QA for an LLM-based invoice-extraction pipeline, from the prompt to the test that validates it.
I believe good AI products are mostly good engineering: clear contracts, measured outputs, tests that catch regressions before customers do. Studying International Relations alongside Software Engineering is how I keep the other half in view: the people, markets and regulations the software has to serve.
- Based in
- Dois Vizinhos, Paraná, Brazil
- Working at
- SubBase (Fort Lauderdale, remote) · through Codengage
- Studying
- Software Engineering, UTFPR · International Relations, UNINTER
- Languages
- Portuguese (native) · English (professional) · Spanish, French (basic)
- Available for
- Talks, mentoring and tech communities
03 / Skills & expertise
Four pillars, one loop: build, validate, automate, ship.
AI Engineering
LLM pipelines that extract structured data, agents that act, and the prompt systems that keep them precise.
- LLM pipelines
- Prompt Engineering
- AI Agents
- MCP
- Model integration
- MLOps
- LLM evals
- Coding agents (Claude Code)
Quality & Automation
Test plans, automated suites and system validation, treated as part of the product, not an afterthought.
- Test strategy
- Automated testing
- System validation
- HITL evaluation
- Bug reporting
- E2E testing in CI
- Test management (MQ-Test)
Global collaboration
Daily work in English with a U.S. team, plus International Relations training for the market side of software.
- English (professional)
- Remote-first
- International Relations
- Public speaking
- Spanish & French (basic)
- Mentoring
04 / Featured projects
Work that pairs AI with the discipline to prove it.
Featured · Open source
2025 — now
MQ-Test
A test-management platform (suites, cases, plans, runs, bugs, requirements) with an MCP server so coding agents can read and write test data. Integrates with GitHub, Linear and Slack; the automation repo stays the source of truth and MQ-Test becomes the dashboard that organizes and tracks it.
- test cases organized
- 500+
- runs tracked via MCP
- 9,000+
- integrations
- 10+
- Rails 8
- PostgreSQL
- Docker
- MCP
- GitHub API
- Linear
Professional · SubBase
LLM invoice extraction, vendor by vendor
Vendor-specific prompt rules, a pre-extraction page-classification gate for mixed PDFs, schema migrations and structured bug reports for an extraction pipeline used in production.
- Prompt systems
- LLM eval
- Redash / SQL
Automation
subbase-qa-tests
Automated end-to-end suite for the SubBase platform, organized in MQ-Test and run on CI, so regressions are caught before release.
- E2E
- CI
Product design
SUSAGENDAMENTO
Mobile app concept for scheduling public-health (SUS) appointments, designed in Figma.
- Figma
- Mobile UX
Agent workflows
prompt-pattern-docs
A skill that turns rough extraction problems into production-ready, documented LLM prompts.
- Claude skills
- Prompt patterns
05 / Journey
From cabling networks to shipping AI.
Work and study, in parallel, since 2023.
Sep 2024 — now · Remote (Fort Lauderdale, USA)
Data Entry / HITL / Prompt Engineering Specialist · SubBase through Codengage
Contractor through Codengage, dedicated to the SubBase platform: the human-in-the-loop quality layer of an LLM invoice-extraction pipeline — vendor-specific prompt rules, behavior diffs across prompt versions, structured bug reports and QA automation. Through Codengage, I also created and trained AI models and built data products.
Sep 2023 — Mar 2024
Network Technician · Proveminas
Cabling, hardware and internet connections. The hands-on infrastructure base behind everything after it.
Feb 2026 — Jun 2030 (expected)
B.A. International Relations · UNINTER
Markets, globalization and regulation, the context software products operate in.
Mar 2023 — Jul 2027 (expected)
B.Sc. Software Engineering · UTFPR
President of the CAES Alan Turing student council in 2025, secretary in the 2026 board. Research on LLMs for test-smell detection.
06 / Achievements & impact
Evidence, not adjectives.
10+
vendor prompt systems
Authored or audited for the SubBase extraction pipeline (Wesco, Airgas, White Cap and others).
500+
automated tests shipped
In subbase-qa-tests, tracked in MQ-Test, run on CI.
98.85%
extraction accuracy gain
Measured across vendor prompt revisions in SubBase’s extraction pipeline.
Speaker, DevParaná na Estrada 2026 & Anhembi Morumbi (São Paulo)
Talks on “From student to international developer” and “Paths and technology”: how early-career engineers reach global teams.
Mentor, IAthon (Sudotec / SENAI)
Guided teams building AI prototypes under hackathon constraints.
Led the Software Engineering student council (CAES Alan Turing)
President in 2025, secretary in 2026; organized the Semana Acadêmica and its sponsorships.
Research: LLMs for test-smell detection
Comparative study of language models identifying test smells, written in SBC format at UTFPR.
07 / Contact
Let’s build software that works everywhere.
Organizing a talk, looking for a mentor or building a tech community? My inbox is open — English or Portuguese both work.
- Emailandreyherick8@gmail.com
- LinkedIn/in/herick-gonzaga
- GitHub@herick-gonzaga
- Instagram@herick.andrey
- Time zoneUTC−3 · overlaps US East 9–17h