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Christopher  N'DongCN
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Christopher N'Dong

@christopherndongst

AI data trainer passionate about emerging technologies.

France
Message

What I'm looking for

I’m open to developing my skills in emerging AI‑related fields such as prompt engineering, data evaluation, and model fine‑tuning. I’m eager to take on roles where I can learn deeply and quickly, apply new knowledge effectively, and contribute to innovative projects.

As a dedicated freelance AI trainer and data annotator, I have developed strong expertise in refining AI outputs, optimizing search results, and ensuring cultural and linguistic accuracy. My work with companies such as Outlier, Appen, and Alignerr has strengthened my ability to adapt to diverse contexts and deliver high‑quality results in both French and English.

With a solid background in data labelling, voice acting, and prompt evaluation, I excel in maintaining quality, safety, and relevance across projects. I also take pride in reviewing and improving peer contributions to uphold high performance standards. Open to expanding my skills, I am ready to train for new roles where I can bring value and continue to grow.

Experience

Work history, roles, and key accomplishments

Appen Butler Hill Inc logoAI
Current

AI Trainer

Mar 2025 - Jul 2025 (4 months)

Annotate text, audio, and image data for NLP and multimodal models
Review peer work to ensure data quality and guideline compliance
Create prompts for LLM testing (prompt engineering)
Translate English–French content with contextual accuracy
Support fine-tuning and model alignment workflows

AL
Current

AI Trainer

Alignerr

Feb 2025 - Present (6 months)

Annotate text, audio, and image data for NLP and multimodal models
Review peer work to ensure data quality and guideline compliance
Create prompts for LLM testing (prompt engineering)
Translate English–French content with contextual accuracy
Support fine-tuning and model alignment workflows

OU
Current

AI Data Trainer

Outlier

Nov 2023 - Present (1 year 9 months)

Annotate text, audio, and image data for NLP and multimodal models
Review peer work to ensure data quality and guideline compliance
Create prompts for LLM testing (prompt engineering)
Translate English–French content with contextual accuracy
Support fine-tuning and model alignment workflows

OU

Voice Actor

Outlier

Jun 2025 - Jul 2025 (1 month)

Record French voice samples with varied tones and emotions
Review and evaluate peer recordings
Edit scripts for clarity and natural delivery
Ensure clean, high-quality audio using Audacity

NI

Middle Office Manager

Natixis Investment Managers International

Aug 2018 - May 2019 (9 months)

Managed financial information distribution, translated documents, and resolved operational incidents, ensuring smooth internal and external communications.

Education

Degrees, certifications, and relevant coursework

ESGCI logoES

ESGCI

Bachelor of Communication, Communication

2015 - 2016

Earned a Bachelor of Communication, emphasizing the principles of effective communication and media strategies in business environments.

Esupcom logoES

Esupcom

Master 1, Marketing and Communication

2014 - 2015

Completed a Master 1 in Marketing and Communication, focusing on the integration of marketing strategies and communication skills in various business contexts.

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Christopher N'Dong - AI Trainer - Appen Butler Hill Inc | Himalayas