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Milena Kołodziejczyk
AI expert blending data precision with marketing innovation for global impact.
Full time/Part time/Project based
Remote
Experienced AI specialist and digital marketer with a strong foundation in SEO, SEM, social media, and e-commerce. Proven success in evaluating and improving...
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My Career Journey
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1/9
Freelance (UPWORK)
Marketing Specialist
Jan 2015 - Present | 11y 7m
Delivered marketing, SEO, SEM, social media, translation, and content services for 165+ global clients. Maintained a 100% Job Success Score, managed multilingual content and supported digital campaign...
Invisible Technologies
AI Research & Claim Evaluation Specialist
Oct 2025 - May 2026 | 7m
Conducted detailed research to verify claims and assess evidence quality across AI, STEM, business, and other domains. Provided written justifications for claim validity, reviewed AI outputs and supported...
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Smart Air
Social Media Manager
Sep 2023 - Apr 2026 | 2y 7m
Grew Twitter/X monthly impressions to 350K+ (+734%) in 10 months; achieved an 8.64% engagement rate. Led influencer collaborations, generated 2,000+ leads, and optimized ROI with competitor analysis and...
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STEM Evaluation
AI Trainer & Reviewer
Sep 2025 - Apr 2026 | 7m
Created and reviewed AI evaluation tasks, used Python for task validation, worked with JSON, Git, and Claude Code. Reviewed AI responses for accuracy and supported STEM and chemistry-focused projects in...
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Scale AI
AI Trainer
Dec 2023 - Dec 2025 | 2y
Created and reviewed AI prompts, responses, and rubrics for text, audio, and video projects. Assessed AI outputs for accuracy and clarity. Supported projects in STEM, marketing, linguistics, and optimized...
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Dr Mercola
Senior Global Marketing Manager
Jul 2020 - Aug 2023 | 3y 1m
Increased organic traffic by 40% YoY via SEO and global campaigns. Managed Amazon product launches, generating $250K+ annual sales. Improved email open rates from 18% to 26% and CTR by 35%.
eToro.com
SEO Manager
Dec 2019 - Jun 2020 | 6m
Directed SEO strategy for fintech campaigns, created 100+ SEO articles, managed paid ads, and increased organic traffic by 45% in 6 months. Simplified financial content for broader reach and engagemen...
Surfshark.com
SEO Manager & Content Writer
Mar 2019 - Nov 2019 | 8m
Conducted keyword research, optimized pages, improved domain authority by 20 points, increased web traffic by 60% and conversions by 25% in nine months.
HS PLUS
International Customer Service Manager
Jan 2018 - Feb 2019 | 1y 1m
Expanded brand presence to new markets, managed international teams, supported marketing automation and supervised Facebook Ads campaigns.
Education
University of Lisbon
Exchange Program (Chemistry)
2018
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Adam Mickiewicz University
MSc Chemistry
2018
Language(s) I speak
Polish
Fluent
English
Fluent
Spanish
Intermediate