Raunak Kumar

رونق کمار

New York City

Raunak
Kumar

Violinist  ·  Product Manager

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Raunak Kumar, violinist

As an Artist

From a Carnegie Hall debut at fourteen to the Kennedy Center and Kulturpalast Dresden, a career rooted in freelancing in chamber ensembles and orchestras, with a passion for building concert series that adapt classical music for newer generations.

Raunak Kumar, product manager

As a Builder

Applied Mathematics at Columbia. Machine learning research in radiation oncology. Now building new features for HubSpot's customer success platform.

About

I'm a violinist and product manager based in New York City, equal parts artist and builder. This site is a snapshot of where I am right now, the music I'm making, the work I'm doing, and the curiosity that connects them. Feel free to reach out, and check back as it grows!

Musical Background

Raunak Kumar is a violinist from Johns Creek, Georgia, based in New York City. A student of Siwoo Kim, he balanced his musical pursuits with studies in Applied Mathematics at Columbia University. Previously, he trained at the New England Conservatory Preparatory School under Soovin Kim and Detroit Symphony Concertmaster Robyn Bollinger while studying at the Walnut Hill School for the Arts.

Raunak has performed on prestigious stages worldwide, including the Kennedy Center, Alice Tully Hall, and Kulturpalast Dresden. He made his orchestral debut with the Georgia Youth Symphony and his Carnegie Hall debut at fourteen. A first-prize winner of the GMTA String Competition and a National YoungArts Foundation awardee, he has also led chamber ensembles to victory in competitions such as the Franklin Pond Chamber Music Competition and has been featured twice on NPR and WQXR. He recently performed chamber concerts in Portugal at the Portuscal Music Festival and is excited to be a part of the St. Lawrence Chamber Music Seminar this summer at Stanford University.

As an orchestral musician, he has served as Concertmaster for Camerata Notturna and Westside Chamber Players, in addition to subbing with Princeton Symphony, The Orchestra San Antonio, and New York Classical Players. He has participated in festivals including Aspen, Bowdoin, and the Moritzburg Festival Academy. This past summer, he was a teaching artist at the Classical Music Institute in San Antonio before performing in Austria with Alpen KammerMusik.

During the pandemic, Raunak founded Give Bach, a virtual concert series that raised over $6,000 for COVID-19 relief through performances of solo Bach, uniting musicians from pre-college to professional levels, including Augustin Hadelich and Alexi Kenney. The initiative was recognized by the Atlanta Symphony and New England Conservatory.

To conclude his mathematical studies and scratch the itch for his love of commercial aviation, he and his colleagues delivered a capstone project on the Kutta-Joukowski theorem, focusing on optimal airfoil design. Raunak also worked with radiation oncology at the Columbia University Medical Center to determine patient survival probability with a causal inference machine learning model.

As he embarks on a new chapter as a Product Manager at HubSpot, Raunak remains dedicated to his musical career, freelancing as a chamber musician and performing with Camerata Notturna. Offstage, he enjoys exploring Urdu calligraphy, rock climbing at bouldering gyms, exploring new mathematical theorems, and savoring the culinary delights of New York City.

On Stage

Featured In NPR  ·  WQXR

Kennedy Center

Washington, D.C.

Alice Tully Hall

Lincoln Center, New York

Carnegie Hall Debut

New York, NY

Kulturpalast Dresden

Dresden, Germany

GMTA First Prize

String Competition

YoungArts Awardee

National Foundation

Orchestral

  • Camerata Notturna Co-Concertmaster / Section Member
  • Westside Chamber Players Section Member
  • Princeton Symphony Sub
  • The Orchestra San Antonio Sub
  • New York Classical Players Sub
  • Opera San Antonio Sub

Festivals & Programs

  • Aspen Music Festival Aspen, CO
  • Bowdoin International Music Festival Brunswick, ME
  • Moritzburg Festival Academy Germany
  • Alpen KammerMusik Austria
  • Classical Music Institute Teaching Artist Fellow, San Antonio
  • Portuscal Music Festival Porto, Portugal
Give
Bach

Founding Give Bach

Give Bach aimed to support COVID-19 relief and racial equity in the United States. Using virtual performances from students and leaders in the classical music industry, the series united musicians to fight for a better world. Half of the proceeds went to The Innocence Project; the other half to Oxfam America's Coronavirus Emergency Fund.

The series raised over $6,000 and featured Augustin Hadelich, Alexi Kenney, Milena Pajaro-van de Stadt, and many others. Recognized by the Atlanta Symphony and New England Conservatory.

Experience

Current · Sep 2025 - Present

HubSpot

Associate Product Manager · Customer Success

Building health scores for customer success managers on HubSpot's Customer Success platform. Previously interned on the Product Security team as one of five APMs in the third cohort (Summer 2024).

Fellowship · Sep 2025 - Present

Columbia In Tech

Hsing Fellow

Selected for the Hsing Fellowship, a program that builds community among recent Columbia graduates in tech and connects them with senior alumni mentors across various paths in the industry.

Research · Sep 2023 - May 2024

Columbia University Medical Center

Student Researcher · Radiation Oncology

Built a causal forest model for Glioma (brain tumor) progression to determine patient survival probability, applying causal inference machine learning at the intersection of mathematics and medicine.

Internship · May 2023 - Aug 2023

Stanford Health Care

Clinical Business Analytics Intern · Palo Alto, CA

Worked on clinical business analytics, applying data visualization and SQL to surface insights across Stanford Health Care's operations.

Raunak Kumar

Applied Mathematics
at Columbia University

The mathematical training behind the work: fluid dynamics, optimization, probability. For his capstone, Raunak and his colleagues investigated the Kutta-Joukowski theorem, focusing on optimal airfoil design.

At Columbia, he also established a pre-professional society to help musicians explore careers beyond performance, reflecting a long-held belief that the skills built in a conservatory translate everywhere.

Alongside his technical studies, a Hindi course sparked a self-driven exploration of the Urdu script, leading him to fall in love with Nastaliq calligraphy.

Coursework

Linear Algebra Accelerated Multivariable Calculus Analysis and Optimization Machine Learning Intermediate Python Applied Statistical Computing User Interface Design Differential Equations Numerical Methods Dynamical Systems Climate Physics Applied Math Seminar Urdu Hindi Western Philosophy Western Art Hinduism South Asian Music

Listen

Let's Connect

Available for chamber music engagements, orchestral work, and conversations about the space where music and technology meet.