Vasconcelos played high school soccer at Alta High School in Sandy, Utah, which won three state championships during her career.[2][3] She scored a total of 37 goals and recorded 22 assists at Alta High.[4] Vasconcelos also played youth soccer for Sandy-based club Olympique Montreux.[5][6]
On March 25, 2018, Vasconcelos debuted for Chicago Red Stars in a 1–1 draw against Houston Dash.[11] She appeared in 20 games for the Red Stars in 2018.[12]
On September 10, 2020, Utah Royals acquired Vasconcelos from the Red Stars in exchange for $55,000 in allocation money.[16] Vasconcelos requested the trade to be closer to her family.[2]
Kansas City NWSL, 2020–2021
On December 7, 2020, ownership of Utah Royals FC was transferred to a group in Kansas City, Kansas. The team was subsequently relaunched as an expansion team and temporarily renamed Kansas City NWSL, and the league transferred all of Royals FC's roster rights to the new club, including Vasconcelos's contract.[3]
On July 1, 2022, following Vasconcelos's loan to Sevilla FC, Kansas City waived her NWSL playing rights.[3][17] Two weeks later, Portland Thorns FC announced that the club had signed Vasconcelos as a national team replacement player.[3][20] She debuted for Portland on July 16, 2022, as a 78th-minute substitute in a 5–0 win against NJ/NY Gotham FC.[21] On July 29, 2022, Thorns FC extended Vasconcelos's contract to the end of the 2022 season,[22] giving her the opportunity to make three more appearances for Portland.[23]
On January 27, 2023, Thorns FC announced that it had re-signed Vasconcelos to a one-year contract with an option for an additional year.[23] On March 26, 2023, she scored her first goal for Thorns FC in the 76th minute of a 4–0 win against Orlando Pride.[24]
Utah Royals, 2024–
On November 21, 2023, Utah Royals announced that they had signed Vasconcelos.[25]
^"Primera Iberdrola, Acta oficial: Real Sociedad 2–0 Sevilla FC (Jornada 3: Sáb, 25 Sep, 16:00)" [Primera Iberdrola, Official record: Real Sociedad 2–0 Sevilla FC (Matchday 3: Saturday, September 25, 16:00)]. Royal Spanish Football Federation (in Spanish). September 25, 2021. Archived from the original on November 18, 2021. Retrieved November 18, 2021. La jugadora Dña. Jennifer Michele Vasconcelos con licencia E0634202 con el dorsal nº22 es convocada como jugadora suplente pero no aparece en el sistema fenix. [The player Mrs. Jennifer Michele Vasconcelos with license E0634202 with the number 22 is called up as a substitute player but does not appear in the Fénix system.]