Blazej started his career writing copy and cutting trailers for films and TV shows at HBO Poland.
He wrote screenplays for the immensely successful high budget SF shorts "Legendy Polskie", directed by Oscar-nom Tomek Baginski. His 2nd script, a thriller written originally in English, became one of the Black List’s Top Ten Thrillers, got optioned by a judge of the prestigious Nicholl Fellowships in co-op with Leonardo di Caprio's Appian Way.
He was hired to write or script-doctor both in Polish and English for major Polish studios and producers, including Platige Image, Alvernia and Watchout in the genres of psychological thriller, spy thriller, SF, Fantasy and biopic.
His credits include three novels and a volume of short stories as well as several short stories in American literary press. His self-developed video game, a metaphysical thriller "Donna: Avenger of Blood" gained a cult status among fans of the genre.