Bayliss' formative years as a footballer were spent in
Darwin,
Northern Territory, spending 4 years playing at youth level for
Mindil Aces, before joining the youth set up at
Central Coast Mariners as a 16 year old in 2018.
Central Coast Mariners Having come through the age groups for the
Central Coast Mariners Academy, Bayliss was promoted into the NPL First Grade team for the Mariners for the 2022 season, with the Mariners competing in the newly renamed
NSW League One competition, the second tier in the
National Premier Leagues NSW system. Bayliss made an immediate impact for the team, ending the season as the equal top scorer in the competition with 13 goals in 22 appearances. The season saw the team win the Premiership for finishing top of the table and achieve promotion to the top flight, however losing the Grand Final 2–1 after extra time to
St George City. In January 2023, Bayliss was signed on a scholarship contract with the Mariners, joining his older brother
James in training with the Mariners first team squad for the
2022–23 season. Bayliss continued his fine form into the
2023 NPL season, with the team now competing in the top flight following the previous season's promotion. Bayliss was a key member of the team, scoring 9 goals in 21 appearances. Bayliss had a standout performance against
North West Sydney Spirit at Pluim Park, being involved in all 4 goals for the side in a 4–2 victory, initially with two assists and then scoring two goals in two minutes late in the match to secure the victory from a position of 2–2. However, that match would be his penultimate appearance for the club, appearing one final time against
Sydney FC Youth. Bayliss scored again in his farewell match, and was clapped off by teammates and supporters at the end of the match. His departure from the club was confirmed the following day.
Newcastle Jets Following his surprise release from the Mariners, it was announced the following day that Bayliss had signed for
F3 Derby rivals,
Newcastle Jets. On 17 July 2023, Bayliss made his professional debut in an
Australia Cup play-off match against
Melbourne Victory at
Larrakia Park in Darwin, coming off the bench as Newcastle won on penalties to qualify for the
2023 Australia Cup round of 32. Bayliss also made his
A-League debut in Newcastle's opening match of the season, a 2–2 away draw against
Perth Glory. Newcastle Jets would announce on 24 June 2024, Bayliss had signed a contract extension for 2 more years. Bayliss scored his first professional goal in round eight of the
2024–25 A-League in a 4–0 win over
Perth Glory. Bayliss featured in all 26 league matches, starting 19 of them. Bayliss contributed to Newcastle Jets’ second major trophy, making four appearances during their victorious
2025 Australia Cup campaign. Bayliss and the Jets would go on to win their second title of the season, winning the A-League Men
Premier's Plate on 19 April 2026 following
Auckland FC's 1–0 loss to the
Central Coast Mariners. Bayliss scored 5 goals and registered 3 assists during the regular season. ==International career==