Multilingual Quality Analyst (German) at Invisible Technologies

Reviewed agents’ ratings and justifications to ensure accuracy, consistency and guideline compliance. Validated explanations against evidence and flagged errors for review. Improved QC score across the team from approximately 60% to over 90% within 2 months through detailed, targeted feedback and general guidance.

Advanced Multilingual AI Data Trainer (German) at Invisible Technologies

Applied RLHF and SFT training methods to improve model outputs while maintaining a score average above 99%. Created and refined German language prompts and preambles for creative and business-oriented use cases. Identified and labeled contextual, factual, linguistic and reasoning errors according to detailed quality guidelines. Compared and corrected model answers to improve training data quality and reduce error patterns.

Account Manager at Straight Up Agency

Optimized content calendars for 10+ clients in preparation for TikTok Shop. Guided content creators on setup, planning and strategy. Planned and created content pieces, elevating engagement across several social media platforms. Analyzed and optimized social ad performance.

Intern in Mobile Experience – Retail Marketing at Samsung Electronics GmbH

Supported the organization of visual merchandising layouts across 6000+ ad spaces. Assisted in the project management of 5+ exhibitions and pop-up stores, multiple livestreams, and offline promotional campaigns, while coordinating vendors and timelines. Produced and distributed custom merchandise materials.

Office Services Assistant at Dr. Sasse GmbH

Prepared and organized business meetings and internal events for employees at a Fortune 500 company. Organized daily office logistics, such as mail, supplies and food/beverage inventory and handled ad-hoc office support to ensure 100% operational uptime.

English Teacher at Private Pre-School in Seoul, South Korea

Taught English to young learners; created engaging lesson plans and activities.

Sales Assistant at Flying Tiger Copenhagen

Managed customer service, stock, and store operations.