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Gabriela Costa
Looking for a jobAI Annotator
Product Manager at AERIN, designing a conversational AI that turns couples’ conversations into wedding identities and vendor-ready documents.
BrazilAI Annotator at Handshake AI
About
At AERIN, I designed a conversational AI agent that turns a couple’s conversation into a wedding visual identity and vendor-ready documents. After testing with real users, I moved structured questions from the prompt into code to address repetition and skipped questions, cutting about 15 AI calls per conversation.
At Cilia Tecnologia, I led product strategy across five business units and managed six Product Managers. I launched a B2B SaaS ERP with 500+ auto repair shops migrated and reduced production bugs by 40% in seven months. I currently evaluate AI responses at Handshake AI and map workflows while building in-house tools at EDEN.
Experience
AI Annotator
Evaluate AI assistant responses in Brazilian Portuguese, comparing two responses side by side and rating them on correctness, helpfulness, tone, and writing quality. Passed the project's one-attempt qualification assessment.
AI EvaluationPrompt EngineeringPortugueseEnglishWriting Rationales
Founder and Head of Product
Designed a conversational AI agent for wedding planning, built on Claude models. Moved structured questions from prompt to code, cutting about 15 AI calls per conversation, and implemented a multi-agent development workflow.
AI Product ManagementPrompt DesignClaudeMulti agent workflowsUser StoriesTest ScriptsLGPD
Education
PM3
Product Leadership program at PM3, ongoing in 2026.
Product Leadership program at PM3, ongoing in 2026.
IPOG
MBA in Project Management from IPOG, completed in 2019.
MBA in Project Management from IPOG, completed in 2019.
PUC Goiás
B.Sc. in Computer Engineering from PUC Goiás, completed in 2017.
B.Sc. in Computer Engineering from PUC Goiás, completed in 2017.