Open to opportunities

Mustapha Hajaji

@mustapha_hajaji

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Media Buyer, Copywriter, and Sales Manager with 4+ years of experience

Morocco

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What I'm looking for

I’m looking for a role where I can train and evaluate AI systems, review content for quality and compliance, and deliver structured, data-driven feedback—while supporting performance improvements under clear guidelines and tight deadlines.

I’m currently working as an AI Trainer & Data Annotator and AI Content Reviewer, where I reviewed and annotated AI-generated text to ensure quality, coherence, and compliance with guidelines. I identified recurring model errors and delivered structured feedback for continuous improvement.

Before and alongside this, I’ve built strong optimization experience as a Media Buyer & Copywriter, reviewing and optimizing large volumes of digital content (ads, landing pages, funnels) for quality and performance. I conducted A/B testing, built full-funnel systems, and used Meta Ads Manager and Google Analytics to validate accuracy and reporting quality while collaborating with creative and sales teams.

I also contributed to growth and execution as a Sales Manager (Shipsen) and Ads Consultant (COD Partner), leading seller-focused meetings, solving ad-related problems, and delivering training sessions and custom courses. My approach stays detail-oriented, pattern-driven, and data-driven—ensuring consistent results even with ambiguous guidelines and tight deadlines.

Experience

Work history, roles, and key accomplishments

Current

AI Trainer & Data Annotator

Current

Alignerr

Jan 2026 - Present (4 months)

Reviewed and annotated AI-generated text for quality, coherence, and guideline compliance. Identified recurring model errors and delivered structured feedback to support continuous improvement.

AI Training Data Annotation Text Evaluation Content Moderation Quality Assurance

Current

AI Content Reviewer

Current

TELUS

Aug 2025 - Present (9 months)

Evaluated search results and online ads for accuracy, relevance, and user-intent alignment using detailed rating guidelines. Maintained high agreement rates while handling subjective, complex evaluation tasks.

Guideline based review AI model evaluation Ads Quality Rating Search Relevance User Intent Guideline Based Review Data Annotation

Current

Media Buyer & Copywriter

Current

Freelancer

Oct 2021 - Present (4 years 7 months)

Reviewed and optimized large volumes of digital content (ads, landing pages, funnels) to improve quality and performance. Conducted A/B testing, built full-funnel systems, and used Meta Ads Manager and Google Analytics to validate reporting quality.

Media Buying Copywriting A B Testing Funnel Optimization Ads Manager Google Analytics Landing Page Optimization Performance Analysis

Traffic Manager

The Bridge Event

Aug 2025 - Oct 2025 (2 months)

Reviewed and optimized campaign content for clarity, engagement, and consistency. Managed WhatsApp and email campaigns, analyzed performance, and refined messaging in collaboration with internal teams.

Traffic Management WhatsApp Marketing Email Marketing Performance Analysis Cross Functional Collaboration

Sales Manager (Shipsen)

Shipsen

Oct 2024 - Oct 2025 (1 year)

Built Shipsen Market, an affiliate platform with 1,000+ products, and designed an automated affiliate process to support sellers at scale. Created and managed an e-commerce course for African sellers and supported B2B growth through meetings with laboratories, suppliers, entrepreneurs, and ateliers.

Sales Enablement E commerce Strategy Copywriting Product Testing B2B | Partnerships

Ads Consultant

COD Partner

Mar 2024 - Oct 2024 (7 months)

Held 400+ one-on-one meetings with sellers to improve ad performance, increase sales, and grow e-commerce businesses. Consulted on ad strategy, copywriting, scaling, and campaign structure for GCC and African markets, and delivered training sessions and custom courses.

Copywriting Conversion Optimization Scaling Performance Consulting Training Delivery A B Testing