Karol J.

I am an English-to-Polish localization specialist with 19+ years of experience helping international companies adapt digital content for the Polish market — with deep, hands-on expertise in fintech and trading platforms. I specialize in localization that goes beyond translation — ensuring content sounds natural, culturally accurate, and optimized for user experience, SEO, and conversion. I work across websites, e-commerce platforms, SaaS products, mobile apps, and fintech content. ✔️SERVICES ▪ EN–PL localization (websites, apps, digital products) ▪ SEO-focused translation and content optimization ▪ UX/UI localization for user interfaces and flows ▪ Marketing transcreation (landing pages, e-commerce content) ▪ Linguistic Quality Assurance (LQA/LQE) & AI-generated content review (MTPE) ▪ Fintech & trading platform localization ✔️EXPERIENCE 19+ years EN–PL localization ▪ Marketing, UX/UI, digital products, fintech, AI content ▪ Translation, proofreading, transcreation, QA ▪ Complex interface and user journey localization ▪ Recent clients include major e-commerce and tech platforms (large-scale AI content review/MTPE SEO & digital content (3+ years) ▪ SEO Specialist at Admirals (Admiral Markets) — managed Polish-market content strategy for a financial broker ▪ Focus on visibility, engagement, and conversion ▪ Websites, landing pages, email campaigns, apps ▪ Multiple Google Featured Snippets and top-5 rankings achieved Finance ▪ 16 years of active trading experience (forex, CFD, investments) ▪ Winner of Poland's largest real-money trading competition (XTB Live Trading 2017 — 145.65% ROI in 9 days) ▪ I understand trading products from the user's perspective, not just the language ✔️ WHY ME I ensure that your Polish content feels native, not translated — improving clarity, trust, and user engagement.