While in school, Wiancko converted his dormitory room into a production studio,[1] where he arranged and recorded strings for bands like Yellowcard and Veruca Salt.

From 2009 to 2011, Wiancko attended the Marlboro Music Festival[2] where he performed with Richard Goode, Mitsuko Uchida, and members of the Juilliard and Guarneri Quartets.

In October 2023, Wiancko was named Spoleto Festival USA's next Charles E. and Andrea L. Volpe Director of Chamber Music, debuting in the role in the 2024 season.

Kronos' Artistic Director David Harrington stated of the transition, "We look forward to soaring into the future with the catalytic, super-charged vitality of Paul’s playing.

In 2016, Wiancko composed the score for the crime drama feature film Heartlock, as well as a Mars exploration-based work for solo piano commissioned by scientist and NASA project leader Peter Smith.