Aleš grew up in Khartoum (Sudan). In 1988, he and his family returned to Czechoslovakia where he received his education. He gained his art skills from artist Věra Ničová. Aleš received a degree in Costume Design at the Academy of Performing Arts in Prague under Costume Designer Jana Zbořilová and later M. S. in Architecture and Urban Design under professor Jiří Suchomel at Technical University in Liberec, where he graduated with honors. In 2006, Aleš was a residency student at London College of Fashion at the Costume for Performing Arts Department. In 2008, he studied Set and Costume Design at Motley Theatre Design Course in London led by Alison Chitty, Ashley Martin-Davis, Anthony Lamble, and Cat Martin. In 2009, Aleš became the overall winner of the prestigious British Linbury Prize for Stage Design.

Aleš’s work includes designs for over 100 productions and spans across all genres and scales, from alternative theatre to opera, musical theatre, and film, from small children’s theatre to large-scale opera venues.

His portfolio includes: Giselle and La Bayadère (Moravské divadlo, Olomouc, Czech Republic), Carmen and operetta Polish Blood (National Theatre, Brno, Czech Republic), L’Italiana in Algeri, Swan Lake, Rusalka, Nabucco, Monteverdi’s Orfeo and L’Incoronazione di Poppea, Rimsky-Korsakov’s Mozart and Salieri (J. K. Tyl Theatre, Plzeň, Czech Republic), Turandot and Il Trovatore (Revolving Theatre, Český Krumlov, Czech Republic), Countess Maritza (State Opera, Banská Bystrica, Slovakia), The Bat (State Theatre, Košice, Slovakia), Polish Blood (Odesa Academic Theatre of Musical Comedy, Odessa, Ukraine). Musical and theatre projects include: Curtains by John Kander (Hudební divadlo Karlín, Prague, Czech Republic), Alan Menken’s Little Shop of Horrors and Gipsy Kings’ Zorro (Městské divadlo Brno, Brno, Czech Republic), Cyrano de Bergerac and Neil LaBute’s Fat Pig (Moravské divadlo, Olomouc, Czech Republic), Next to Normal and Tick, Tick, Boom! (Divadlo na Prádle, Prague, Czech Republic), Green Day’s American Idiot (J.K. Tyl Theatre, Plzeň, Czech Republic) to name a few.

In 2010, Aleš developed the set and costume design alongside the creator of the legendary musical Les Misérables – Alain Boublil – for the new version of the West End musical Marguerite with music by Michel Legrand. In 2018, Aleš designed costumes for German-speaking premiere of the Broadway musical An American in Paris in Landestheater Linz (Linz, Austria) directed by Nick Winston, and a German tour of An American in Paris directed by Christopher Tölle. His recent project is Titanic – the Broadway musical for Landestheater Lint (Linz, Austria).

In 2022, his debut in the United States will be costume designs for the production of the musical The Sound of Music, directed by the acclaimed Francesco Zambello. (Glimmerglass opera, NY, USA). He designs original fabrics and prints or jewellery for most of his productions to support the authenticity of the piece. In 2019, he designed a permanent collection of sculptures for Museum Hořice in the Czech Republic. The design received the National prize Gloria Musaealis and Patrimonium Pro Futuro prize by National Heritage Institute in 2020.

In 2014, director Hana Pinkavová filmed a documentary about Aleš’s life and work called Jít za svým snem (Follow your dream) for Czech TV channel ČT Art. Between 2016-2018, Aleš taught costume design as an external tutor at the Academy of Performing Arts Prague.

Aleš also works as an illustrator and concept artist.