Bruce Harris grew up in the Bronx during the 1980s, in a household filled with the sound of his grandfather's alto saxophone. He didn't pick up the trumpet himself until he was thirteen, after seeing Spike Lee's Mo' Better Blues — from there he worked backward into the tradition the film pointed at, drawing heavily on Charlie Parker, Miles Davis, Clifford Brown, and Dizzy Gillespie. As a high school junior he competed in the "Essentially Ellington" jazz band competition, an experience that put him on a bandstand alongside Wynton Marsalis for the first time. Marsalis would later single him out publicly, naming Harris one of "five young jazz players you should know" in 2013. Harris went on to earn both a Bachelor's and a Master's degree in Jazz Performance at the Conservatory of Music at Purchase College (SUNY Purchase), studying under trumpet virtuoso Jon Faddis.

The Marsalis connection paid off directly: in 2013 Marsalis selected Harris for the pit orchestra of the Tony Award–winning Broadway musical After Midnight, and Harris later played the 2016 production of Shuffle Along as well. Those Broadway runs sat alongside a steady presence in Jazz at Lincoln Center's orchestra and educational programming in New York, Doha, and Shanghai, and years of working the core rooms of the New York scene — Smalls, Smoke Jazz Club, Dizzy's Club, Minton's, Ginny's Supper Club, and Rockwood Music Hall. Television appearances followed the same trajectory: Harris has been seen on The Late Show with Stephen Colbert and The Tonight Show Starring Jimmy Fallon.

As a sideman, Harris's Discogs credits sketch a musician who works comfortably across the full range of New York's traditional and popular jazz economy. He is a confirmed trumpet credit on the Count Basie Orchestra's A Very Swingin' Basie Christmas! (2015, Concord Jazz) — via Andy Farber's orchestra, the same Andy Farber who plays tenor on Harris's own Beginnings and later arranged the "Ellington Suite" on Soundview — and, through that same Farber connection, on Tony Bennett & Lady Gaga's Cheek to Cheek Live! (2022). He appears on Ben Harper's Bloodline Maintenance (2022), on pianist Emmet Cohen's Vibe Provider (2024), and across a run of Posi-Tone dates led by vibraphonist Behn Gillece (Dare to Be, 2016; Walk of Fire, 2017; Parallel Universe, 2019). He has also recorded with drummer Herlin Riley (New Direction, 2016; Perpetual Optimism, 2019), bassist Clovis Nicolas, singer Jazzmeia Horn, and singer Lucy Yeghiazaryan, and holds standing membership in both the Danny Jonokuchi Big Band and, earlier, the JC Hopkins Biggish Band. Outside the studio, he became a recurring guest during the pandemic era on pianist Emmet Cohen's livestreamed "Live From Emmet's Place" series, one of several NYC musicians who kept the scene's rent-party spirit alive online when the clubs went dark.

Harris didn't step out as a leader until 2017, more than a decade into his working career, with Beginnings on Posi-Tone. The album leans on a rotating cast of tenor saxophonists — Jerry Weldon, Andy Farber, and Grant Stewart trade off across the tracklist — alongside Frank Basile on baritone and Dmitry Baevsky on alto, with a steady rhythm section of pianist Michael Weiss, bassist Clovis Nicolas, and drummer Pete Van Nostrand. Reviewers treated it as an unusually assured debut: JazzTimes called it "a fine initial leader statement," and All About Jazz went further, writing that it "sounds as if it's guided by an old hand instead of someone relatively new to the demanding art of leading a band."

His second leader date, Soundview (2021, Cellar Music/La Reserve), took a more personal turn. Recorded in October 2020 at GB's Juke Joint in Astoria and produced by trumpeter Jeremy Pelt, it's named for Harris's own Bronx neighborhood and was conceived, in his words, after he "got more into the history of Black people in America" during the pandemic — eight of the album's nine compositions are by Black American jazz composers, including Gigi Gryce, Hank Mobley, Barry Harris, and Randy Weston, alongside an Andy Farber–arranged Duke Ellington suite. Pianist Sullivan Fortner, bassist David Wong, and drummer Aaron Kimmel make up the rhythm section, with a young Samara Joy — not yet a household name — guesting on vocals on two tracks.

Harris's two subsequent releases moved him into shared billing rather than solo leadership, both built around mentorship. The Lighting of the Lamps (2022, Cellar Music), recorded at Van Gelder Studio and billed to the "Grant Stewart Quartet With Bruce Harris," reunites him with the tenor saxophonist featured on Beginnings, alongside pianist Tardo Hammer, bassist David Wong, and drummer Phil Stewart; its title comes from the opening line of T.S. Eliot's poem "Preludes." Then, in January 2025, Harris and pianist Ehud Asherie released Thank You, Barry Harris! on Arbors Records — also cut at Van Gelder Studio — a duo tribute to pianist Barry Harris, who taught and mentored both musicians. Seven of the nine tracks are Barry Harris compositions; the other two, written by Asherie and Harris respectively, are dedications to their teacher.

Harris's trumpet voice is built on the classic hard-bop lineage he absorbed as a teenager — Parker, Gillespie, Clifford Brown, and Miles Davis — refined through the "Essentially Ellington" pipeline and formalized under Jon Faddis's exacting tutelage at Purchase. What distinguishes his output as a leader is how consistently collaborative it is: Beginnings is built around a rotating cast of saxophonists rather than a single fixed band, and three of his four leader/co-leader albums are explicitly shared billings — with Grant Stewart's quartet, and in duo with Ehud Asherie — reflecting the deep-rooted culture of mentorship and shared credit that runs through the New York straight-ahead scene he came up in. That same instinct shows in Soundview, which turns a personal, neighborhood-specific concept into a study of Black American jazz composers rather than a vehicle purely for his own writing. Across his sideman work, Harris moves easily between big-band tradition (Basie, Andy Farber's orchestra) and small-group hard bop, a versatility that has made him one of the most in-demand trumpet voices of his generation in New York.