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Ignacio Estrada

Ignacio Estrada

Software Engineer - Mobile and AI Systems

USA flagSan Francisco, Usa
$30.00/hrEntry LevelInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Task Types

ClassificationClassification
Text GenerationText Generation

Freelancer Overview

I have hands-on experience developing AI-driven systems and managing the full data lifecycle, from raw data ingestion to structured, validated datasets ready for modeling and downstream analysis. My work spans multimodal analytics platforms that combine computer vision, speech-to-text (ASR), and NLP, where I designed pipelines for automated data validation, feature extraction, and experiment reproducibility. I have implemented ML-based correction logic and dynamic boundary detection to improve data quality in real-world imaging scenarios, and built telemetry and analytics frameworks to convert user feedback into structured signals for analysis. My technical skills include Python, SQL, PyTorch, TensorFlow, scikit-learn, XGBoost, and tools like OpenCV and Transformers, with experience in both mobile and backend environments. I am passionate about building reliable, high-quality datasets and annotation workflows that enable robust AI solutions in domains like social media, mobile applications, and robotics.

Entry LevelSpanishEnglish

Labeling Experience

LLM Output Evaluation & Semantic Labeling for Creator Content

Internal Proprietary ToolingTextClassificationText Generation
Led human-in-the-loop evaluation and labeling of large language model outputs for creator-focused social media content. Defined and applied semantic labeling criteria to assess alignment, intent preservation, tone consistency, and contextual correctness across generated text outputs. Performed qualitative review of model responses, identified common failure modes, and flagged ambiguous or borderline cases requiring guideline refinement. Labeled and scored hundreds of examples using structured rubrics to ensure consistency across annotations. Conducted spot checks and self-audits to maintain high labeling accuracy and reduce subjectivity. Collaborated with iterative model development by providing feedback on mislabeled edge cases and proposing improvements to evaluation guidelines. Focused on producing high-quality, reliable labels suitable for downstream model training and evaluation.

Led human-in-the-loop evaluation and labeling of large language model outputs for creator-focused social media content. Defined and applied semantic labeling criteria to assess alignment, intent preservation, tone consistency, and contextual correctness across generated text outputs. Performed qualitative review of model responses, identified common failure modes, and flagged ambiguous or borderline cases requiring guideline refinement. Labeled and scored hundreds of examples using structured rubrics to ensure consistency across annotations. Conducted spot checks and self-audits to maintain high labeling accuracy and reduce subjectivity. Collaborated with iterative model development by providing feedback on mislabeled edge cases and proposing improvements to evaluation guidelines. Focused on producing high-quality, reliable labels suitable for downstream model training and evaluation.

2025 - 2025

Education

C

Cornell University

Bachelor of Science, Computer and Information Science

Bachelor of Science
2021 - 2025

Work History

C

Cornell Thread Magazine

Front-End Engineer

Ithaca
2021 - Present
A

Amazon

Software Development Intern

New York
2024 - 2024