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Airton

Airton

AI Product UX Designer & LLM Evaluation Specialist
📍 Zurich, Switzerland · (0) · Member since August 2025
Availability
🏠 Works remotely / from home Yes No
🧰 Travels to client Yes No

Presentation

I help AI companies build products that users actually trust. With 3+ years working directly inside AI systems evaluating LLMs, designing RLHF feedback loops, and quality-controlling generative AI outputs at TaskUs and Translated, I understand AI from the inside out. That makes me a different kind of UX designer.

Most designers learn about AI from the outside. I've spent years understanding where models fail, how users lose trust, and what "good" AI output actually looks like. I bring that knowledge directly into UX decisions: error states, confidence indicators, progressive disclosure of AI-generated content, and interfaces that make probabilistic systems feel reliable and human.

On the design side, I deliver end-to-end UX: user research, information architecture, wireframing and prototyping in Figma, and implementation-ready handoffs. I've built responsive websites and e-commerce platforms from scratch, and my Fine Arts background (E.S.A.D., Portugal) gives me a strong foundation in visual design and composition.

What I can help you with:
UX/UI design for AI-powered products (dashboards, copilots, chatbots, review tools)
LLM output evaluation, annotation, and RLHF feedback processes
Data annotation and AI training data quality assurance
Responsive website and e-commerce design (Figma, HTML/CSS, Shopify, WordPress)
AI content moderation workflows and guidelines

I'm an EU citizen based in Zürich, immediately available, and open to both freelance projects and full-time engagements. Native Portuguese with PALOP and Brazilian variants, fluent English (C1), working on German.
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Offered services

6 services
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I will create your Shopify or e-commerce store with full UX setup
Full e-commerce store setup and design on Shopify, focused on user experience and conversion optimization. I handle theme customization, product page design, navigation architecture, checkout flow ...
450 $
I will design your AI product UX with Figma wireframes and prototypes
I will design your AI product UX with Figma wireframes and prototypes
UX/UI design for AI-powered products — dashboards, copilots, review tools, and complex B2B interfaces. I specialize in the specific UX challenges that AI products face: how to make probabilistic o ...
750 $
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I will annotate and label your AI training data in Portuguese and English
High-quality data annotation and labeling for AI and machine learning projects. I annotate text, image, and video data with precision, ensuring your training datasets meet the quality standards ...
50 $ Per hour
I will design and build your responsive website in Figma and WordPress
I will design and build your responsive website in Figma and WordPress
End-to-end responsive website design and development for small and medium businesses. I handle everything from UX research and information architecture to Figma wireframing, prototyping, and final ...
600 $
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I will evaluate and improve your LLM outputs with RLHF feedback
I help AI teams improve their Large Language Model outputs through structured RLHF (Reinforcement Learning from Human Feedback) evaluation. With 3+ years of hands-on experience at TaskUs and ...
75 $ Per hour
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I will write health & wellness content and social media copy in Portuguese and English
Professional health and wellness content tailored to educate, engage, and convert your audience. I create blog posts, social media captions, newsletters, and website copy with linguistic precision ...
40 $ Per hour
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Background

Content Moderation & LLM Training Specialist
TaskUs · 25/12/2025 – 15/01/2026
Built and maintained AI training libraries with systematic annotation of text, image, and video data. Developed RLHF feedback processes for LLM quality optimization. Applied pattern recognition to identify recurring issues in training data and drove quality improvements across the team.
LLM Evaluation Specialist & Translator
Translated / Uber · 01/03/2024 – 01/09/2024
Evaluated and refined Large Language Models for Portuguese-speaking markets. Improved translation quality through NLP evaluation with focus on PT-PT, PT-BR, and PALOP cultural and linguistic nuances. Delivered iterative feedback using annotation tools and quality metrics frameworks.

Freelancer Project
Computer Support Specialist & KYC Analyst
Teleperformance Greece · 01/08/2023 – 01/01/2025
KYC/AML compliance including customer identification, risk assessment, and transaction monitoring. Provided multilingual technical support in Portuguese and English. Restructured knowledge database from English to Portuguese to improve team efficiency.
Content Moderator
Accenture Portugal · 01/11/2022 – 01/08/2023
Reviewed and moderated sensitive online content in compliance with community guidelines and platform safety standards. Applied critical thinking and ethical judgment to complex content decisions across cultural contexts.
AI Tutor & Technical Translator
NterOne Corporation / Cisco · 01/04/2022 – 01/03/2023
Translated and evaluated Cisco certification courses (PRNE) for Portuguese-speaking markets. Delivered high-quality technical translations using CAT tools including SDL Trados and MateCAT.
Freelance UX Designer & Web Developer
Self-Employed · 01/01/2022 – Today
Designed and developed responsive websites for SMBs including e-commerce (Shopify), educational, and service business platforms. End-to-end UX process: client research, Figma wireframing, prototyping, and implementation in WordPress and HTML/CSS.
Bachelor in Fine Arts – Design Fundamentals
E.S.A.D. – Escola Superior de Artes e Design · 2013 – 2018
Focus on Composition, Color Theory, Visual Design, and Digital Art Fundamentals. Caldas da Rainha, Portugal.
AML Fundamentals for Fintech & CTF
AML Fundamentals for Fintech & CTF
20/02/2024
ACAMS certified. 4.0 credits covering Anti-Money Laundering fundamentals applied to fintech and counter-terrorism financing. Relevant to KYC/AML compliance work.
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Sanctions Masterclass: Ransomware & Cryptocurrency
Sanctions Masterclass: Ransomware & Cryptocurrency
15/02/2024
ACAMS certified. 2.0 credits covering sanctions compliance, ransomware threats, and cryptocurrency risk in financial contexts.
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📄PDF
Figma A-to-Z Professional Training
12/05/2022
60-hour professional Figma training by Brainstorm Academy. Covers component systems, auto-layout, prototyping, and design handoff.
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🇩🇪Deutsch 🇬🇧English 🇪🇸Spanish
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Working hours

Monday ▪ Today
From08h00To18h00
Tuesday
From08h00To18h00
Wednesday
From08h00To18h00
Thursday
From08h00To18h00
Friday
From08h00To18h00
Saturday
Closed
Sunday
Closed

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