[12] Between 2013 and 2018, he was a commentator on the socio-political debate program Sem Moderação - then broadcast on Canal Q and TSF and made available on the SAPO portal - where he worked until he joined the government of António Costa as a Secretary of State.

He was upgraded to Deputy Minister and Secretary of State for Energy in Costa's second term, from October 2019 to March 2022, working in the Ministry of the Environment and Climate Action.

[15] As Secretary of State, he was involved with the Public Prosecutor's Office, which investigated alleged irregularities in the concession for the exploration of lithium in Montalegre.

[16] He defended that “he would have committed a crime” if he had reversed the order that reported the approval of the concession of research and exploitation of lithium to LusoRecursos, and said that he did what he had been asked to do.

[22] [23] On 7 November 2023, Galamba was named a formal suspect (arguido) in Operation Influencer, a corruption investigation ordered by the Public Prosecution Service of Portugal, regarding several deals he was involved in during his time as Secretary of State.