Open to opportunities

Sanele Ngcobo

@sanelengcobo

Message

I improve AI models through high-quality annotation, prompt evaluation, and ethical training data workflows.

United States

Message

What I'm looking for

I'm looking to advance ethical, human-centric AI through annotation, prompt optimization, model evaluation, and collaboration with ML research and engineering teams.

I've led annotation and model-evaluation initiatives at Integen AI, Invisible Technologies, Sentryc, and Scale AI, building and curating datasets for NLP, document automation, content moderation, IP protection, and multimodal AI systems.

I review model behavior for accuracy, relevance, tone, bias, risk, and alignment, while partnering with AI engineers and researchers to improve prompts, instruction-tuning data, annotation quality, and ethical AI outcomes.

Experience

Work history, roles, and key accomplishments

Current

AI Trainer & Annotation Program Lead

Current

Integen AI

Sep 2024 - Present (2 years)

Led annotation initiatives across NLP, document automation, and user interaction datasets. Generated, labeled, and curated datasets to train and fine-tune AI systems in enterprise environments.

NLP Annotations Dataset Curation Prompt Design Workshop Delivery

Senior AI Trainer | Annotation Quality & Ethics

Sentryc GmbH

Jun 2022 - Aug 2023 (1 year 2 months)

Oversaw large-scale data annotation projects for content moderation and IP protection. Designed ethical training workflows that reduced bias in model outputs and enhanced fairness.

Data Annotation Content Moderation IP Protection Training Quality Assurance

AI Trainer | Workflow Optimization & Evaluation

Invisible Technologies Inc.

Jun 2022 - Aug 2023 (1 year 2 months)

Rated and evaluated AI model outputs for accuracy, tone, and appropriateness across thousands of responses. Wrote, reviewed, and iterated on instruction-based prompts and dialogue pairs to improve model behavior.

AI model evaluation Prompt Engineering Instruction Tuning Dialogue Pairing Workflow Optimization

AI Annotation Specialist | Model Quality Analyst

Scale AI

Jan 2018 - Aug 2023 (5 years 7 months)

Conducted large-volume data labeling and QA across NLP, vision, and multi-modal projects. Scored AI responses for contextual alignment, clarity, and user intent using standardized rubrics.

Data Labeling QA NLP Computer Vision