Osih holds an MBA in Leadership and Sustainability, and has more than 25 years of experience in the aviation industry, notably in operations and management.

An established entrepreneur in Cameroon for the past 18 years, he conducts business in aviation, ecotourism, hospitality and aquaculture, and has over 200 employees.

He is Deputy General Rapporteur in charge of state income, Vice Coordinator of the Hope for the Youth caucus, and a member of multiple parliamentary friendship groups.

As flag bearer for the SDF, he was the hope of millions of Cameroonians who have never experienced a democratic transition since independence and strongly believed that these elections would be the last chance for a democratic change to occur and liberate them from an 86-year-old incumbent, Paul Biya who had been in office for 35 years representing a 60-year-old regime.

On October 28, 2023, Joshua Osih was elected for five years as head of the presidency of his political party the SDF.