Lieutenant Colonel Junick enlisted in the Selected Marine Corps Reserves as a 92-day Reservist in 1999. In May 2000 he attended Recruit Training at Marine Corps Recruit Depot (MCRD), San Diego. Upon graduation he checked into Company A, 1st Bn 23d Marines in Houston TX. In the summer of 2001, he reported to Officer Candidate School (OCS), MCB Quantico, VA for Platoon Leaders Course (PLC) Juniors. In June 2002 he attended the School of Infantry earning his earned his Military Occupational Specialty (MOS) 0311, basic rifleman. In 2003, he returned to OCS for PLC Seniors. Upon graduating Texas A&M University, with a Bachelor of Science degree in Agricultural Development he was commissioned. Following in completion of the Basic School, he reported to Marine Corps Engineer School where he earned his current MOS 1302, Combat Engineer Officer.
In 2005 he reported to 1st Combat Engineer Battalion (CEB) and served as the Assistant Operations Officer until assigned as 1st Platoon Commander Charlie Company. In 2006, as 1st Plt Commander he deployed to Fallujah, Iraq in support of Operation IRAQI FREEDOM. Upon returning from OIF, he held the billets of, Engineer Support Company (ESC) Executive Officer (XO) and (ESC) Commanding Officer (CO) before executing a permanent change of station to MCRD Parris Island.
In April of 2008 Lieutenant Colonel Junick was assigned to Kilo Company, 3d Recruit Training Bn, Recruit Training Bn, MCRD Parris Island, SC. In November of 2008, he was transferred to Recruit Processing Company, Special Training Bn, where he would serve as the XO until he took over the XO duties at Special Training Company (STC). In April of 2009 he took over as the CO of STC until June 2010. After a successful company command tour, he executed a permanent change of assignment (PCA) to Headquarters and Services Bn where he served as both the Logistic Officer (S-4) and the Supply Officer (SuppO) through March 2011
In April 2011 Lieutenant Colonel Junick was selected to attend Engineer Captains’ Career Cours (ECCC) in Fort Leonard Wood, Missouri. Upon graduation, he received orders to Marine Wing Support Squadron 171 (MWSS-171) Iwakuni, Japan. There he served as Engineer Company XO for three months before he assumed command of the company. Simultaneous with his assumption of command, he was sent to Marine Corps Air Station Yuma for Weapons and Tactics Instructor course, earning the additional MOS of 7077. While in command of Engineer Company, he went to the island of Tinian, the Commonwealth of the Northern Mariana Islands as part of training exercises GEIGER FURY and FORGER FURY II. He supervised the clearing of historic North Field. This historic airfield is where both atomic bomb missions during WWII originated from; during both exercises his Marines cleared over 200 acres of jungle from the four historic runways and all their taxiways. They also created a tactical landing surface for the first landing of KC-130 and MV-22 aircraft on Baker runway.
In 2014 he received orders to Joint Task Force North (JTF-N), US Northern Command, Fort Bliss, TX. At JTF-N Lieutenant Colonel Junick served in the Plans and Policy Directorate, J-5. While in the J-5 he attended Joint Forces Staff College and received the MOS 9702. He then assigned as a Liaison Officer (LNO) from JTF-N to Joint Task Force West, a Department of Homeland Security task force tasked with protecting the US Southwestern border and approaches. After his time as an LNO Lieutenant Colonel Junick moved into the Future Operations Directorate, J-35.
In 2017 he received orders to Marine Wing Support Detachment 273 (MWSD-273), at the time Marine Wing Support Detachment 31, aboard Marine Corps Air Station Beaufort, South Carolina to serve as the Detachment Officer in Charge. From December 2019 through April 2020, he took MWSD-273, the Detachment’s only combat deployment, to Bahrain as part of Operations SPARTAN SHIELD and INHERENT RESOLVE in support of Marine Fighter Attack Squadron 251 (VMFA-251). Lieutenant Colonel Junick received orders to Marine Corps Installations Pacific (MCIPAC) Okinawa Japan and turned MWSD-273 over in June 2020.
He reported to MCIPAC, Defense Policy Review Initiative (DPRI) and served as the Assistant Senior Program Manager until April 2021. Lieutenant Colonel Junick then took over as the Director of DPRI Okinawa. Shortly after taking over, the program was divided into two separate program management offices, the Okinawa Consolidation program, and the Futenma Replacement Facility (FRF) program. In October 2021 Lieutenant Colonel Junick took over as the Director of the FRF Program Management Office (PMO) of MCIPAC DPRI. Lieutenant Colonel Junick took over as 4th CEB Inspector Instructor 23 June 2023.
Lieutenant Colonel Junick's personal awards include the Defense Meritorious Service Medal; the Meritorious Service Medal; Navy/Marine Corps Commendation Medal with two gold stars; Navy/Marine Corps Achievement Medal; and the Combat Action Ribbon.