A journalist by profession, he worked for local newspapers and for the Antena 3 radio station.

[1] He resigned his seat in 1986, when he was appointed Director General of Institutional relations and information in the Valencian regional administration, serving until 1995.

[1] In March 2014 Puig won the PSPV-PSOE primary to be the party's candidate for President of the Valencian Government in the 2015 regional elections.

[3] On 25 June 2015, he was invested President of the Valencian Government with the favourable votes of PSPV-PSOE, Podemos and Compromís, succeeding Alberto Fabra and putting an end to two decades of PP governments in the region.

On 26 June 2023, his government lost a lucrative bid to host a Tesla Gigafactory in Valencia after their negotiations were leaked to the media while Puig denied it was him that leaked the details of the negotiations to the media.