Jackson's mother also acted as the team doctor at the 2014–15 Men's FIH Hockey World League Semifinals.

[20] In 2016 Jackson began playing for Team Bath Buccaneers in Tier 2 of the Men's England Hockey League (MEHL).

[23][24] Jackson also helped Ireland win Men's FIH Hockey World League tournaments in 2012[25] and 2015.

[26] Jackson captained Ireland at the 2013 Men's EuroHockey Nations Championship and he scored the equaliser in a 3–3 draw against the Czech Republic.

[1][27][28][29] He was also a member of the Ireland team that won the bronze medal at the 2015 Men's EuroHockey Nations Championship.

[33][34][35] In June 2017 Jackson was a member of the Ireland team that won the Hamburg Masters, defeating Germany 4–2 in the final.

[36][37] In July 2019, during a two-match series against Scotland, Jackson became the third Ireland men's international, after Eugene Magee and Ronan Gormley, to make 250 senior appearances.

[38][39] In December 2021, having already returned to his Bath Buccaneers club from an autumn 2020 skull fracture,[21] Jackson was a member of the Irish side that played three indoor friendlies against Scotland.

[9][11][32] In 2016 he was appointed head of hockey at Prior Park College, Bath, where he also teaches academic Physical education.