He was the Sword Master for “Arn – The Knight Templar” and “Arn – The Kingdom at Roads End”, which were nominated for Best Action in a Foreign Film at the Taurus Stunt Awards. He has choreographed fights for among others: "King Lear" for Romateatern, “Fiddler on the Roof” for Malmö Opera, “Warriors” for Pontus Lidberg Dance at Norrlandsoperan, "The Three Musketeers" for the National Theatre in Oslo, “Don Carlos” for Göteborg Stadsteater, “Romeo & Juliette” (Prokofiev) for Malmö Balletten, “Zorro” for Uppsala Stadsteater, “Twelfth Night” for Örebro Länsteater, “Hamlet” and "Waiting for Godot" for Östgötateatern, “MacBeth” for Cressida Brown at Shakespeare and Company’s Bard En Seine Festival in Paris.

He directed the dance performances “Crossroads” and “Heartquakes” (touring pieces in Sweden) as well as the monologue performance of Märta Tikkanens “Århundradets Kärlekssaga” (co-director) and the musical drama "Föreställningar om Vera och världen" (co-director).

As a masterclass teacher, or as a teacher and fight director representing the NSFS, he has taught movement, acting and dramatic combat at College of William and Mary and Ann Arbor University in the USA, The Paddy Crean Festival in Washington DC in the US and Ontario on the Lake and the Banff Cultural Centre in Canada, The Cultural Academy in Riga, Latvia, The Theatre Academy in Oslo and the Academy for Performing Arts in Fredrikstad, Norway, Endla Theatre, Viljandi Theatre and Nukku Theatre in Estonia, Mr. Pejo's Wandering Dolls in St. Petersburg, Russia, Teatr Groteska in Krakow, Poland, The Royal Academy of Music in Copenhagen, Denmark, Bristol Old Vic Theatre School in England, and several other institutions.

Peppe is the founder of the Nordic Stage Fight Society, where he has served as the chairperson twice. He is a Honorary Fight Master with Fight Directors Canada, and he was the Artistic Director for the International Order of the Sword and the Pen from 2001-2008. He is a two-time recipient of the Paddy Crean Award 2007 and 2015. He is also the founder of the NSFS mentor program for the education of new NSFS teachers.

In 2012, Maria Winton and Peppe Östensson founded the 2-year international professional training program in physical theatre called Acting and Collaborative Theatre / Linjen för Scenkonst in Linköping, Sweden. They ran the school together until Maria passed away in January 2016. Peppe continued working as the Artistic Director of the school until January 2018.

Peppe has trained various styles of martial art, most recently with Wudang Practical Tai Chi trainer Mikael Wallin, a 2-time European Champion.

Peppe is currently co-writing the book "The Unwritten, the Unsaid: Inner Knowing and Creative and Pedagogical Processes" together with Hilde Veronika Östensson.