Almendares appeared in three games as a freshman at Louisiana in 2018, being used as a kickoff specialist.[3] He then was their main kickoff specialist in 2019, kicking 88 times for 5,319 yards.[3] He then was used more at placekicker during the 2020 season, converting all five of his field goal attempts and all 23 of his extra point attempts.[3] He appeared in four games in 2021, making four of five field goal attempts before missing the rest of the season due to injury.[1] He made 18 of 23 field goals and 23 of 24 extra points in 2022, being the team's scoring leader with 77 total points.[1]
In 2023, Almendares placed first on the team and ninth in the Sun Belt Conference (SBC) with a total of 92 points, having made 14 of 16 field goals and 50 of 51 extra points.[1] As a senior in 2024, he broke the team and SBC record for single-season field goals, broke the SBC career field goals record and set the Louisiana records for career field goals, extra points and total points scored.[4] He finished the regular season having made 27 of 29 field goals, being a four-time SBC special teams player of the week and being named first-team All-SBC, first-team All-American and the Lou Groza Award winner for best kicker nationally.[5]