W
William Grah
From Brazil
$11/hr
or
$21,000/yr
Active over a week ago
QA Engineer
Quality Assurance Engineer
Available for hire
Experience
level
Mid-level
Available from
12 Apr 2026
Software developer with 14 years of experience transitioning to QA. Technical background in gaming, proptech, and agtech. Seeking Junior/Mid-level QA positions where I can leverage my debugging expertise and end-to-end development knowledge to ensure software quality.
Skills
Languages
Employment History
Game Developer at
V12 Engine
2022
-
2024
∙ Contributed to the development and maintenance of 20+ casino games using Lua on top of V12's proprietary engine
∙ Fixed critical bugs and developed new features across multiple titles in a cross-platform codebase (Windows, iOS) built on C/C++, OpenGL, and DirectX
∙ Worked within a gambling-focused development environment, writing code with strict attention to regulatory compliance requirements
∙ Delivered all work remotely from Japan, collaborating asynchronously with teams in Brazil across significant time zone differences
Software Engineer at
QuintoAndar
2021
-
2022
∙ Maintained ETL pipelines processing 500k+ listings per hour (a throughput I helped scale significantly pre-acquisition), scraping and cleaning public data to surface high-value opportunities for sales teams
∙ Developed automation tools for growth and sales teams, reducing manual effort across go-to-market operations
∙ Championed test-driven development practices within the team
Software Engineer at
Spinver
2021
-
2021
Integral part in the technical analysis and execution of the product pivot from social media sentiment analysis to a lead matchmaking engine
∙ Ensured system reliability throughout the paradigm migration, keeping the platform stable while the core product was being fundamentally transformed
∙ Helped architect, build, and test the asynchronous processing pipeline using Celery — the foundation that would later be optimized to handle 500k+ listings per hour
∙ Served multiple major clients across real estate and job markets, including QuintoAndar, Loft, Indeed, and InfoJobs
∙ Contributed directly to the product positioning and technical maturity that made Spinver an acquisition target
Education
No education history.