Jan

Key Skills

Software

Data Annotation Tech

Other

Top Subject Matter

LLM output evaluation and bilingual translation quality control (Polish/English)

Live bilingual communication for video game presentations

Creative media localization (manga translation, Polish)

Top Data Types

Text

Audio

Video

Document

Top Task Types

Evaluation/Rating

Data Collection

Prompt + Response Writing (SFT)

Fine-tuning

Question Answering

Text Generation

Freelancer Overview

DataAnnotation.tech — AI Data Trainer & Evaluator. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Data Annotation Tech and Other. Education includes Python Certification, freeCodeCamp (2025) and High School Diploma, Liceum Ogólnokształcące im. Władysława Reymonta w Rawie Mazowieckiej (2025). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Translation.

Labeling Experience

Playtech/Euro Live Technologies — Video Game Presenter

Audio

Delivered bilingual (Polish and English) verbal communication for an international video game audience in real time. Executed live gaming procedures under strict operational compliance frameworks. Maintained high focus and reliability during long twelve-hour broadcast shifts. • Provided professional bilingual verbal communication to live audiences. • Followed strict operational compliance procedures during live gaming. • Maintained exceptional focus and mental stamina over long shifts. • Supported consistent audience experience through accurate bilingual delivery.

2025 - Present

DataAnnotation.tech — AI Data Trainer & Evaluator

Data Annotation TechText

Served as an AI Data Trainer and Evaluator assessing and improving the quality of AI-generated content for Polish and English language models. Conducted bilingual review of outputs with emphasis on factual accuracy, linguistic fluidity, and natural translation quality. Provided structured feedback to help fine-tune model alignment and performance. • Reviewed bilingual model outputs for factual accuracy and translation naturalness. • Identified machine translation errors, unnatural phrasing, and register mismatches. • Supplied detailed reviewer feedback to support model fine-tuning and alignment. • Ensured work followed strict operational compliance requirements.

2025 - Present

Independent Community Projects — Freelance Translator & Localizer

OtherText

Worked as a freelance translator and localizer adapting creative English and Japanese manga content into contemporary, idiomatic Polish. Ensured cultural adaptation by translating jokes, idioms, and metaphors in a way that preserved the original intent and structure. Focused on linguistic naturalness and quality for the target audience. • Translated English and Japanese creative text into idiomatic Polish. • Adapted culturally specific jokes, idioms, and metaphors for naturalness. • Preserved original structural intent while localizing meaning. • Performed pro-bono community-based localization tasks (2022–2024).

2022 - 2024

Education

Work History