Is working in government ministries, especially the Ministry of Economy, permissible or forbidden (halal or haram)?

There is no objection to a Muslim working in any permissible field or ministry. The important thing is that their work does not involve anything forbidden by Sharia (definition), nor does it directly assist in something forbidden. They must also perfect their work and perform it to the fullest extent, as the Prophet, peace and blessings be upon him, said: "Indeed, Allah Almighty loves that when one of you performs a deed, he perfects it."