He left the staff in 2010 after the 2010 FIFA World Cup,[1] and subsequently worked as a fitness coach at Universidad Católica, O'Higgins, Santiago Wanderers, Cobreloa and Unión Española.
[2] Armijo returned to O'Higgins in 2016 after acquiring his coaching license, and was named manager of the club's youth categories.
[3] On 1 August 2017, he was named interim manager after the resignation of Cristián Arán,[4] He stayed in the role for two matches, and subsequently became an assistant of newly appointed Gabriel Milito.
After leaving O'Higgins in 2019, Armijo subsequently worked as a head of youth development at Barnechea before being named manager of Primera B side Deportes Melipilla on 16 December 2020.
[6] At the same time that he worked as manager of Barnechea, he performed as a football commentator and tactical analyst for both the digital media Redgol and the TV channel Vive from VTR.