He was head of the Israeli Defense Forces' Instruction and Doctrine Directorate and commander of the headquarters for special operations.

[3] He served for about a year as an instructor at Officer Training School (Bahad 1) before returning to the Paratroopers Brigade as a platoon commander in the Sergeant Company of the 890th Battalion.

[12] He served as the operations officer of the Northern Command and undertook two years of study at the École Spéciale Militaire de Saint-Cyr in Paris.

Upon his return in 1977, the Chief of Staff Mordechai Gur offered him command of the Golani Brigade, but Rubin declined.

During Operation Litani in 1978, he commanded a force from the Officer Training School that captured Taibeh and Ghandourieh, and he was responsible for killing about nineteen militants.

[19] During the war, in the Battle of Ain Zahalta, a jeep carrying three IDF officers crossed the road leading into the village and entered territory controlled by Syrian commandos.

He later transitioned to managing and promoting various real estate projects in partnership with businessmen David Appel and Dror Hoter-Yishai.

He led an independent list, supported by Prime Minister Benjamin Netanyahu and funded by the Likud party.

These expenses, combined with debts accrued from his private business ventures, led to lawsuits with substantial claims filed against him and his wife.

In the early 21st century, Rubin continued his business endeavors but faced challenges that eventually led to his declaration of bankruptcy.

[33] Rubin held a degree in Middle Eastern studies from Tel Aviv University and was a graduate of the National Defense College.