Àlex T.

Key Skills

Software

Other

Top Subject Matter

Generative AI model training and fine-tuning

AI evaluation and performance improvement

Prompt engineering for generative AI

Top Data Types

Text

Audio

Top Task Types

Fine-tuning

Prompt + Response Writing (SFT)

Tracking

Freelancer Overview

AI Trainer & Generative AI Specialist – Alignerr. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Secondary Education Certificate, INS Cirviànum (2022) and Spanish Baccalaureate, INS Cirviànum (2024). AI-training focus includes data types such as Text, Computer Code, and Programming and labeling workflows including Fine-tuning, Evaluation, and Rating.

Labeling Experience

Cadence Sound Scape Evaluation Project v2 – Alignerr

OtherAudio

Analyzed and evaluated soundscape data to support AI projects. Applied evaluation methods to assess audio-derived signals and outcomes relevant to soundscape tasks. Contributed to measurement and improvement of model-related performance using assessment results. • Reviewed soundscape data according to project evaluation criteria • Documented observations and evaluation findings • Supported iteration cycles based on evaluation outcomes • Followed protocols to ensure consistent assessment across samples

2024 - Present

Voice Activity Detection Tracker – Alignerr

OtherAudioTracking

Worked on voice activity detection systems using audio data analysis. Assisted in preparing and analyzing segments to support detection behavior. Focused on improving performance through careful handling of audio signals and related labels. • Analyzed audio inputs to identify activity regions • Supported dataset preparation for voice activity detection • Used project guidelines to maintain labeling consistency • Participated in iterative quality improvements for detection outcomes

2024 - Present

S Knees Man – Prompt Engineering – Outlier

OtherTextPrompt + Response Writing (SFT)

Created and optimized prompts for generative AI models to improve output usefulness and correctness. Tuned prompt formulations based on observed model behavior and task requirements. Produced prompt variants aimed at better alignment with desired responses. • Developed prompt templates and iterative refinements • Adjusted wording, constraints, and examples to steer generation • Ensured prompt outputs followed project instructions • Collaborated in a remote workflow for continuous improvement

2024 - Present

Cypher Evals – Outlier

OtherText

Evaluated AI system outputs and used results to guide model performance improvements. Performed quality checks against task expectations and provided feedback to strengthen model reliability. Focused on measuring and refining behavior through systematic evaluation. • Assessed responses using defined rubrics and criteria • Reported issues and improvement suggestions to the project team • Tracked and analyzed evaluation outcomes for model updates • Followed dataset and evaluation protocols for consistent scoring

2024 - Present

AI Trainer & Generative AI Specialist – Alignerr

OtherTextFine-tuning

Trained and fine-tuned AI models on multiple project datasets for production use. Supported iterative improvements by refining model behavior based on project requirements and evaluation feedback. Contributed to prompt and response quality improvements for generative workflows. • Worked with project-specific training instructions and dataset conventions • Participated in evaluation and improvement cycles to enhance model performance • Ensured outputs met task guidelines and quality standards • Collaborated remotely with international teams

2024 - Present

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Education

Work History