Detail-oriented AI annotator and image editor committed to precision, consistency, and visual quality. I combine analytical thinking with creativity to deliver reliable results for AI training and digital media projects.

Osbaldo Mejia

PRO

Detail-oriented AI annotator and image editor committed to precision, consistency, and visual quality. I combine analytical thinking with creativity to deliver reliable results for AI training and digital media projects.

Available to hire

Detail-oriented AI annotator and image editor committed to precision, consistency, and visual quality. I combine analytical thinking with creativity to deliver reliable results for AI training and digital media projects.

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Experience Level

Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Beginner
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Language

English
Fluent
Spanish; Castilian
Fluent

Work Experience

Search Engine Evaluator / AI LLM (RLHF) / App tester at Appen
December 1, 2023 - July 1, 2025
Assessed the relevance and quality of search engine results to improve user satisfaction. Analyzed web content, ads, and social media posts to provide structured feedback. Applied guidelines precisely while working independently and meeting tight deadlines. Helped evaluate AI Large Language Model response prompts and engaged in Reinforcement Learning Human Feedback (RLHF). Followed steps for testing browser or app features and reporting bugs.
Ecommerce Business Owner at Self-Employed
January 1, 2021 - August 26, 2025
Designed and managed a dropshipping and clothing brand website including product launches, digital marketing, and email response. Used CRM tools and analytics to improve user engagement and customer segmentation. Applied SEO principles and A/B testing to optimize traffic and conversions.
Graphic Designer / Photo Editor / UI UX Designer at Freelancer.com
January 1, 2020 - August 26, 2025
Created logos, branding elements, and edited images for clients across music and retail industries. Delivered visually striking assets using Adobe Photoshop, often for album covers and ads. Produced modern and minimalistic UI UX design projects.
Computer Builder & Tech Reseller at Self-Employed
December 31, 2020 - August 25, 2025
Built and sold custom computers, researched market demand and price trends. Provided detail-oriented tech support, showcasing strong problem-solving skills.
Search Engine Evaluator / AI LLM App Tester at Appen
December 1, 2023 - July 1, 2025
Implemented user engagement studies for new search features; performed intuitive evaluation of results; automated repetitive evaluation tasks; analyzed search results for relevance and usefulness; maintained meticulous documentation; influenced next iterations of AI search models; evaluated AI-generated responses and provided structured feedback to improve LM performance.
E-commerce Business Owner at Shopify
January 1, 2018 - January 1, 2021
Designed and managed a dropshipping and clothing brand website; including product launches, digital marketing, and email response. Used CRM tools and analytics to improve user engagement and customer segmentation. Applied SEO principles and A/B testing to optimize traffic and conversions. Increased client satisfaction and repeat business. Managed redesigned company website; implemented UX improvements; optimized product photos; improved keywords and product descriptions.
Graphic Designer / Photo Editor / UI UX Designer at Freelancer
January 1, 2018 - January 1, 2020
Created logos, branding elements, and edited images for clients across music and retail industries. Delivered visually striking assets using Adobe Photoshop. Created modern and minimalist UI/UX design projects. Delivered artwork on time. Optimized web and mobile interface experiences. Improved overall aesthetics.
Ecommerce Business Owner at Shopify
January 1, 2018 - January 1, 2021
Designed and managed a drop shipping and clothing brand website; executed product launches, digital marketing, and customer interactions. Used CRM tools and analytics to improve user engagement and segmentation. Applied SEO principles and A/B testing to optimize traffic and conversions. Improved brand visibility, redesigned the site, and enhanced product photos and descriptions to boost trust and conversions.
Graphic Designer / Photo Editor / UI/UX Designer at Freelancer
January 1, 2018 - January 1, 2020
Created logos, branding elements, and edited images for clients across music and retail; enhanced user engagement and conversions through design improvements and UX ideas. Built and refined visual assets, and contributed to UX design enhancements and brand consistency.
Computer Builder at Freelancer
January 1, 2018 - January 1, 2021
Built and sold custom computers; researched market demand and price trends. Provided detailed technical support, demonstrating strong problem-solving skills and delivering reliable customer service.

Education

High School Diploma at Coral Springs Highschool
August 1, 2012 - July 1, 2016

Qualifications

Microsoft Excel Certification
January 11, 2030 - February 16, 2026
Adobe Photoshop & Premiere Pro Certification
January 11, 2030 - February 16, 2026
SQL Basics Certification
January 11, 2030 - February 16, 2026
Customer Management Certification
January 11, 2030 - February 16, 2026
Marketing & Retail Certification
January 11, 2030 - February 16, 2026
Adobe XD/UI Certification
January 11, 2030 - March 2, 2026
Microsoft Excel Certification
January 11, 2030 - March 2, 2026
Adobe Photoshop Certification
January 11, 2030 - March 2, 2026
Premiere Pro Proficiency
January 11, 2030 - March 2, 2026
SQL Basics Certification
January 11, 2030 - March 2, 2026
Generative AI Introduction and Applications Certification
January 13, 2026 - January 23, 2026

Industry Experience

Software & Internet, Retail, Media & Entertainment, Professional Services, Consumer Goods, Education
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    uniE621 Panthers In a Forest
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