In December 2010, Liarmakopoulos won the position of principal trombone of the Greek Radio Symphony Orchestra, where he played for one season before joining the Canadian Brass. He has also performed with the
Bern Symphony Orchestra, Malaysian Philharmonic, Jacksonville Symphony,
Philadelphia Orchestra, and
European Union Youth Orchestra. His debut solo album,
Ástor Piazzolla: Tango Distinto was released by
Naxos Records in 2011. It is the first full album to feature
Astor Piazzolla's music on solo trombone. In 2013, Liarmakopoulos released his second solo album titled
Discoveries with new works for trombone and piano, collaborating with piano soloist Amy J. Yang. In January 2013, Liarmakopoulos was invited to play with the Oregon-based genre-bending ensemble
Pink Martini. Since then, he has performed with them regularly all over the world. with
choro music from
Brazil was released in July 2015 on the ODEG label. The album was produced by guitarist
Spiros Exaras and mastered by
Bernie Grundman at the Bernie Grundman Mastering Studios-Los Angeles, CA. In 2017, he released his fourth solo album titled
Ethereal. The album features six brand new compositions and five arrangements with an exceptional roster of musicians from all over the world, including Fernando Suarez Paz from Astor Piazzolla's legendary Tango Quintet. Liarmakopoulos was an adjunct trombone professor at
Brooklyn College in New York City. In 2018, he formed Cuatrombon with Jorge Glem on
cuatro, Manuel Rangel on
maracas, and Bam Bam Rodriguez on bass. Together they released three singles of
Venezuelan music and, in 2020, an album entitled "Volar." In 2022 he won the trombone position with the Athens State Orchestra
Premieres Liarmakopoulos is a supporter of new music and new works for trombone, and has premiered a number of pieces by new composers. Four Trombone concertos and several chamber pieces have been written specifically for him . He premiered
Dream (for trombone solo, string orchestra and harp) by
Andrew Cadima at the Curtis Institute of Music in May 2008.
Dedicated works • "Anaklasis" for Solo Trombone - Vagelis Simsiris (1998) • Concerto" for Trombone and Orchestra - John Ellis • "Dream" - Concerto for Trombone and Strings -
Andrew Cadima (2008) • "Opening of the 2nd Gate" - Concerto for Trombone -
Joowan Kim (2008) • "Indigo" for Trombone and Piano - John Ellis (2009) • "Tango Paradiso" for Trombone and piano - John Ellis (2009) • "The bounds of Spring" for Trombone and Harp- Taylor Roland (2010) • "Ypopsia" for Trombone and Piano-
Andrew Cadima (2010) • "Chinese suite" for Trombone and Piano - Hua Yang (2010) • "Krakatoa" for Trombone and Marimba - Stephen Feigenbaum (2010) • "Concertino" for Trombone and Strings - Dinos Costantinides (2012) • "Chorinho do sol"for Trombone and Guitar-
Spiros Exaras (2014) • Tango for two, please! - Noelia Escalzo (2015) • "Distance" for Trombone and Trombone Choir -
Andrew Cadima (2015) • "Sleepwalker" for Trombone and harp -
Andrew Cadima (2016) • "Trombonsillo" for Trombone and piano -
Carolina Calvache (2016) • "Oscuro Silencio" for Tango quintet -
Gabriel Senanes (2017) • "Nostos" for trombone and harp -
Spiros Exaras (2017) • "Tango y Milonga" for Trombone and Piano -
Pablo Estigarribia (2018) • "In memoriam Theodore Antoniou" for trombone and harp - Michalis Andronikou (2019) • "Endlessness" for solo trombone -
Brandon Ridenour (2019) • "The Dwarf Planets" for Solo Trombone -
Spiros Exaras (2020) • "Dance of Tears" for Trombone and Marimba -
Spiros Exaras (2021) • "Kitrino" for trombone and string quartet (arrangement)-
Nikos Kypourgos (2022) • "Three Secrets of the Rain" for Trombone and Piano-
Spiros Exaras (2022) • "Adagio Enigmatique" for Trombone and String Orchestra -
Saint-Preux (2023) • Sunbeam - Trombone Concerto for Trombone and Orchestra -
Alexandros Livitsanos (2025) ==Competitions and awards==