I am a professional with experience in Content Moderation, Trust & Safety, Customer Support, Operational Management and AI Data Annotation.
Throughout my career, I have reviewed sensitive content, applied platform policies, managed escalations, supported customers and contributed to data annotation and content classification projects.
My experience includes:
• Content moderation and policy enforcement
• AI data annotation and data labeling
• Audio, text and image analysis
• Content classification and tagging
• Customer support via phone, email and chat
• Quality assurance and attention to detail
I am highly organized, detail-oriented and committed to delivering accurate and high-quality work while meeting deadlines.
Content Moderation
Community Moderation
Data Annotation
Data Labeling
AI Compliance
Quality Assurance
Content Analysis
Policy Analysis
Customer Support
Audio Transcription
Text Classification
Data Analysis
Problem Resolution
English
Portuguese
Rebecca Sally B.
Queluz, Portugal
$20/hr
5.0
3 jobs
I am a Trust and Safety professional with over five years of experience in content moderation and AI evaluation. I specialize in the "human-in-the-loop" side of AI—making sure models are safe, accurate, and culturally grounded.
What I Bring to the Table:
Trust & Safety Expertise: 5+ years of experience auditing high-volume, sensitive content. I’m an expert at enforcing complex guidelines while maintaining high accuracy and data privacy.
AI Training & Prompting: Certified in Google AI Essentials, I use advanced prompting and critical thinking to stress-test AI models. I focus on catching "linguistic drift" and ensuring AI doesn't mix up closely related dialects.
Linguistic Precision: I specialize in Upper Guinea Kriyol, providing the feedback needed to ensure speech-to-text and localized content sound authentic to native speakers, not like a generic translation.
Quality & Ethics: I bridge the gap between technical data and real-world safety, helping build AI that is ethical, unbiased, and linguistically accurate.
Certifications:
Google AI Essentials
Generative AI (Intermediate)
Agentic AI (Beginner)
Content Moderation
Prompt Engineering
Gemini
Martim N.
Lisbon, Portugal
$20/hr
5.0
30 jobs
Scaling eCommerce Brands with Meta Ads & TikTok Ads — $50M+ in Managed Spend
🎯 $50,000,000+ in lifetime ad spend managed across Meta Ads and TikTok Ads
🎯 ~$700,000/month in active client spend right now
🎯 100% focused on eCommerce: DTC brands, Shopify stores, and 7–8 figure operators
❓ Spending serious money on Meta and TikTok but ROAS keeps slipping as you scale?
❓ Stuck at a revenue ceiling you can't break through, no matter how much you test?
❓ Tired of media buyers who treat your ad account like a $1K/day experiment instead of a real business?
I'm a Senior Media Buyer specialized in eCommerce. Over the past years I've deployed more than $50M in ad spend across Meta and TikTok, currently managing around $500K per month for DTC and Shopify brands scaling past 6, 7, and 8 figures.
I don't run "boosted posts." I build paid acquisition systems that scale profitably — and stay profitable.
◆ RESULTS I'VE DELIVERED FOR eCOMMERCE BRANDS
✅ Scaled DTC brands from $50K/month to $700K+/month in revenue through Meta Ads
✅ Took Shopify stores from 1.8x to 4.5x+ blended ROAS without killing volume
✅ Reduced CAC by 30–50% across multiple accounts in the first 60 days
✅ Launched and scaled new product lines from $0 to $100K+/month in under 90 days
✅ Recovered underperforming accounts spending $50K+/month back to profitability
✅ Built TikTok Ads from a "testing channel" into a primary acquisition engine for multiple brands
◆ WHY eCOMMERCE BRANDS HIRE ME
Most media buyers fail because they optimize the wrong layer. They tweak audiences, restart campaigns, blame the algorithm — and ignore the structural reasons why the account isn't scaling.
I look at the full picture before touching a single campaign:
☑️ Offer strength, pricing, and AOV math
☑️ Creative angles, hooks, and rate of fatigue
☑️ Account structure and learning phase stability
☑️ Meta Pixel + Conversions API (CAPI) accuracy
☑️ TikTok Pixel + Events API setup
☑️ Attribution gaps between platform data and Shopify
☑️ Product feed health and catalog optimization
☑️ Realistic budget vs. profitability curve
Only then do we scale — with data, not guesses.
◆ WHAT I DO
🛒 Meta Ads for eCommerce — Advantage+ Shopping, ASC, manual campaigns, DPA retargeting, full-funnel scaling
📱 TikTok Ads for eCommerce — Spark Ads, creative testing frameworks, Smart+ campaigns, profitable scaling past $10K/day
🎨 Creative Strategy — Hooks, angles, UGC briefs, ad concept development, creative testing systems
📊 Tracking & Attribution — Meta CAPI, TikTok Events API, GTM, server-side tracking, Triple Whale / Northbeam setup
🛍️ Catalog & Feed Management — Shopify feed optimization, DPA, catalog ads
📈 Scaling Systems — Structured testing → validation → scaling frameworks built for stability, not spikes
🔍 Account Audits — Deep audits for brands spending $30K+/month that aren't hitting targets
◆ WHO I WORK BEST WITH
🔹 DTC and eCommerce brands doing $50K+/month in revenue
🔹 Shopify stores ready to scale past their current ceiling
🔹 Founders and CMOs who want a long-term media buying partner, not a quick fix
🔹 Brands spending (or ready to spend) $30K+/month on paid ads
🔹 Operators thinking in quarters and years, not weeks
◆ HOW I WORK
I treat your ad account like my own money is in it. That means daily monitoring, weekly strategy reviews, transparent reporting on the metrics that actually matter (blended ROAS, CAC, contribution margin, MER) — not vanity numbers.
I'm not the cheapest media buyer on Upwork, and I'm not trying to be. I work with a limited number of brands at a time because $50M+ in spend taught me that focus is what drives outcomes.
If your brand is doing real revenue and you're ready to scale Meta and TikTok properly, send me a message 😉
Facebook Advertising
Meta Pixel
TikTok Ad
Instagram Marketing
Google Ads
Media Buying
Performance Marketing
Paid Social
Pay Per Click Advertising
Campaign Management
Ecommerce Marketing
Shopify
Conversion Rate Optimization
Product Marketing
Google Tag Manager
Google Analytics
Lookalike Audience
Retargeting
Liran L.
Porto, Portugal
$22/hr
5.0
33 jobs
Top Rated English-Hebrew Translator & Content Moderator.
I’m bilingual in Hebrew and English and I offer expert translation, transcription, data annotation, and Al training data services focused on accuracy and efficiency.
I specialize in translation quality checking to ensure objective, high-quality linguistic results.
I'm experienced in delivering accurate solutions for demanding language and data tasks.
Content Moderation
Proofreading
English to Hebrew Translation
Hebrew to English Translation
Quality Assurance
Website Translation
Technical Translation
Audio Transcription
General Transcription
Data Annotation
Data Labeling
AI Model Training
Data Entry
Figma
Microsoft Excel
ANDRE LUIZ JANUARIO D.
Alegrete, Portugal
$7/hr
5.0
4 jobs
I am a bilingual (English-Portuguese) customer service professional with over three years of experience in delivering exceptional support in customer service, tech troubleshooting, and travel management. My expertise lies in crafting seamless customer experiences through clear and empathetic communication, efficient problem-solving, and a customer-focused approach.
I have had the privilege of working with the leading global streaming service and the most renowned travel company in the world, gaining expertise in both tech support and travel management. Whether resolving technical issues for streaming platforms or assisting customers with travel arrangements, I am committed to maintaining high-quality standards that exceed expectations.
My technical experience includes working with industry-standard tools like Zendesk, Salesforce, and other CRM platforms to handle customer inquiries, manage cases, and ensure timely resolution. I thrive in fast-paced environments that require adaptability, strong organizational skills, and a deep understanding of customer needs.
In addition to handling customer concerns, I specialize in identifying process improvements that streamline workflows and enhance customer satisfaction. I am dedicated to helping businesses strengthen their customer relationships and maintain a stellar reputation through reliable and professional service.
Customer Service
Adobe After Effects
Technical Support
Phone Communication
Adobe Inc.
Audio Effects
Tech & IT
Techno
Joao S.
Gafanha, Portugal
$44/hr
5.0
3 jobs
I'm a 26-year-old multilingual professional from Portugal with a strong background in customer support, content moderation, and back-office operations, mainly within the iGaming and crypto industries. Recently, I’ve been moving more into voice-over work; something I’m genuinely passionate about.
Native in Portuguese, and fluent in English, Norwegian, and Spanish, I can bring authentic and natural-sounding voiceovers to projects that need a global touch. Whether it's for eLearning, explainer videos, IVR systems, or localized content, I bring a clear, friendly, and professional tone to every recording. I type over 75 words per minute, which helps a lot with script work and fast turnarounds.
After living in Norway for over seven years, I’m really comfortable with Scandinavian culture and communication styles, which is a plus for regional projects or companies working in those markets. I also understand how to adapt tone and pacing based on different audiences, whether it's for formal training content or something more casual and engaging.
Tech-wise, I work from a quiet home setup with good audio quality and clean edits. I'm detail-oriented, easy to work with, and focused on making sure the final result fits what you're looking for.
Let me know if you'd like to hear a sample or talk about how I can help with your next project.
Customer Service
Phone Communication
Technical Support
Importing & Exporting Data
Ecommerce Product Export
Cryptocurrency
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