Reynaldo R.

Key Skills

Software

Appen

Remotasks

Don't disclose

Labelbox

Top Subject Matter

Search engine evaluation and LLM response training

Generative AI response improvement and multimodal text generation

Search engine evaluation for voice assistant (Apple Siri)

Top Data Types

Text

Top Task Types

Red Teaming

Fine-tuning

Prompt + Response Writing (SFT)

Freelancer Overview

Artificial Intelligence Trainer / Appen LTD (Fully Remote). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, Remotasks, and Welocalize. Education includes Bachelor of Computer Engineering, Florida International University (FIU) (2016). AI-training focus includes data types such as Text and labeling workflows including Red Teaming, Fine-tuning, and Evaluation.

Labeling Experience

Artificial Intelligence Generalist / Labelbox Alignerr (Fully Remote)

LabelboxTextPrompt + Response Writing (SFT)

Leveraged AI, marketing, and software development experience within Labelbox Alignerr to advance future AI capabilities. Focused on prompt engineering tasks targeting English (ENG-US). Performed red teaming activities by attempting to break or challenge AI models to assess robustness. • Conducted prompt engineering for ENG-US • Performed red teaming to test model failure modes • Used platform workflows for AI-focused tasks • Applied interdisciplinary experience to AI development

2025 - Present

Search Engine Rater (Google) / Telus Digital (Fully Remote)

Don't discloseText

Evaluated Google search and experimental search features by reviewing queries and results. Contributed to training activities intended to improve search engine results and enhance AI and Google product behavior. Worked on varied evaluator tasks spanning assessment of query-result relevance and related improvements. • Reviewed user queries and returned results • Evaluated and supported experimental search features • Helped improve search quality for AI/Google products • Performed a variety of search evaluator tasks

2023 - Present

Artificial Intelligence Trainer / Appen LTD (Fully Remote)

AppenTextRed Teaming

Trained and evaluated AI systems by working across many projects from major technology companies, with a strong focus on search engine evaluation and social media evaluation. Participated in short-term pilot projects to test and train LLMs and improve model behavior. Performed tasks involving red teaming and prompt engineering, along with writing and improving generated answers. • Worked on ~80 different projects for big tech clients • Conducted search engine and social media evaluation • Engaged in LLM pilot testing and training • Did red teaming, prompt engineering, and answer improvement

2019 - Present

Linguistic Tester Staffing (Apple Siri) / Welocalize (Fully Remote)

Text

Reviewed search queries and rated Siri-provided results to ensure they matched user expectations. Followed Apple-provided detailed guidelines for performing relevance ratings. Performed fast-paced research and ratings work at high daily volume before being unable to pass the final assessment. • Rated Siri search outputs for relevance • Applied Apple guidelines for query/result evaluation • Completed rapid research and ratings cadence • Performed ~400 ratings/day during the project

2024 - 2024

Artificial Intelligence Trainer/Generalist / Remotasks (Fully Remote)

RemotasksTextFine-tuning

Ranked and improved responses for generative AI tools similar to ChatGPT or Bard. Trained large language models to produce better responses to user queries. Also worked on improving LLM comprehension of images and generating helpful text output for image-related tasks. • Improved LLM response quality via ranking tasks • Trained models to answer queries more effectively • Enhanced multimodal behavior for image understanding • Produced helpful text outputs for images

2023 - 2023

Education

Work History