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Hi, I'm Milena Thaísa Santiago, a QA-focused tester and AI collaborator with a passion for making software reliable and delightful to use. I combine practical testing with usability insights to help teams ship solid products. I also work as a freelance translator and reviewer, bridging language gaps to ensure content quality across EN/PT/BR. In my current roles, I contribute to AI model improvement through careful data labeling and validation, and I enjoy collaborating with international clients to optimize user experiences. I'm comfortable working remotely, honoring NDAs, and delivering structured feedback that teams can act on. I have also worked in some AI-related projects as Voiceover Artist.…Hi, I'm Milena Thaísa Santiago, a QA-focused tester and AI collaborator with a passion for making software reliable and delightful to use. I combine practical testing with usability insights to help teams ship solid products. I also work as a freelance translator and reviewer, bridging language gaps to ensure content quality across EN/PT/BR. In my current roles, I contribute to AI model improvement through careful data labeling and validation, and I enjoy collaborating with international clients to optimize user experiences. I'm comfortable working remotely, honoring NDAs, and delivering structured feedback that teams can act on. I have also worked in some AI-related projects as Voiceover Artist.

Milena Thaísa Santiago

QA Engineer, Data Analyst, Copywriter, +1

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Hi, I'm Milena Thaísa Santiago, a QA-focused tester and AI collaborator with a passion for making software reliable and delightful to use. I combine practical testing with usability insights to help teams ship solid products. I also work as a freelance translator and reviewer, bridging language gaps to ensure content quality across EN/PT/BR. In my current roles, I contribute to AI model improvement through careful data labeling and validation, and I enjoy collaborating with international clients to optimize user experiences. I'm comfortable working remotely, honoring NDAs, and delivering structured feedback that teams can act on. I have also worked in some AI-related projects as Voiceover Artist.…Hi, I'm Milena Thaísa Santiago, a QA-focused tester and AI collaborator with a passion for making software reliable and delightful to use. I combine practical testing with usability insights to help teams ship solid products. I also work as a freelance translator and reviewer, bridging language gaps to ensure content quality across EN/PT/BR. In my current roles, I contribute to AI model improvement through careful data labeling and validation, and I enjoy collaborating with international clients to optimize user experiences. I'm comfortable working remotely, honoring NDAs, and delivering structured feedback that teams can act on. I have also worked in some AI-related projects as Voiceover Artist.

Available to hire

Hi, I’m Milena Thaísa Santiago, a QA-focused tester and AI collaborator with a passion for making software reliable and delightful to use. I combine practical testing with usability insights to help teams ship solid products. I also work as a freelance translator and reviewer, bridging language gaps to ensure content quality across EN/PT/BR.

In my current roles, I contribute to AI model improvement through careful data labeling and validation, and I enjoy collaborating with international clients to optimize user experiences. I’m comfortable working remotely, honoring NDAs, and delivering structured feedback that teams can act on. I have also worked in some AI-related projects as Voiceover Artist.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Spanish; Castilian

Beginner

Portuguese

Fluent

Work Experience

QA / Software Tester (Freelance) at Crowdtest, Tester Work, Lysto

January 1, 2024 - Present

Active participation in usability testing for mobile and web applications; execution of test cases; reporting bugs with detailed reproduction steps; collaboration with developers to ensure stability and quality of the user experience.

AI Improvement Specialist at Neevo, Appen, Telus

January 1, 2021 - Present

Contributed to AI model enhancement through data annotation and labeling; validation of AI-generated outputs; provided qualitative feedback to ensure adherence to project guidelines.

Usability Testing Collaborator at Crowdville, UserCrowd, Userlytics

January 1, 2021 - Present

Contributed to scripted and unscripted usability tests for international clients; analyzed UI/UX and provided actionable insights for product improvements.

Freelance Translator and Reviewer at Neevo, Amara, Crowdin

January 1, 2021 - Present

Provided accurate and culturally appropriate translations (EN/PT/BR); managed project deadlines and ensured high linguistic quality in localized content.