Executive Chair, Jack Detzel

Jack Detzel is currently the Director of Supply Chain Capabilities & Optimization with PepsiCo, a cross functional team managing information and improving data management processes. Jack has 31 years of Supply Chain experience with PepsiCo across multiple functions, such as manufacturing, warehousing, transportation, supply & demand planning, customer service, as well as led teams to implement VMI planning and SAP’s ERP system. Within his tenure at PepsiCo, Jack has worked within the subsidiaries of Quaker Oats, Gatorade, Tropicana, Frito Lay, and the Pepsi Bottle Company.

For the past 5 years, Jack has led the PepsiCo’ military and veterans Employee Resource Group, Valor. Valor’s mission is to serve our military, connect with our veterans, and advance PepsiCo as a leader in veteran hiring. The PepsiCo Valor organization supports organizations such as the USO-IL, Fisher House Inc., Veterans Affairs, American Corp Partners, Fort 2 Base, Chicago Cares, Operation Shower, Carry the Load, Warrior Games, the National Gathering of American Indians Veterans, and Roll Call Chicagoland.

Jack has a Bachelor’s of Science degree from The Ohio State University in both Transportation Logistics and Operation Management, and minors in Mathematics, Computer Science, and Economics. He is an avid runner, completing 4 marathons, 4 ½-marathons, 7 ten nautical mile runs. Jack enjoys coaching youth sports, since 2002, playing the guitar, and reading, mostly history.

Vice Chair of Operations, Justin Miller

Having served for nearly a decade in the US Army and deploying twice to Iraq, Mr. Miller separated from the service in January of 2013 and has been involved in the veteran network in and around the Chicagoland area ever since.

​Mr. Miller has been a part of Roll Call Chicagoland staff since April of 2017 and was selected into the Vice Chair of Operations role in July of 2020. As the Vice Chair of Operations, Justin leads all operational teams, including events, marketing and communications, membership engagement, and strategy efforts in order to sustain and grow the organization.

Justin also serves as the Executive Director for SVA Illinois, a regional model of the national Student Veterans of America organization, due to his first-hand experience as a student veteran. In his role, Justin leads and directs a nearly all-volunteer team that works to improve the lives and opportunities of student veterans here in Illinois and throughout its neighboring states.

​In his spare time, Justin mentors fellow veterans through their transition out of the military and helps support various local community groups just like Roll Call Chicagoland.

Justin is a father of 3 and enjoys his time at home working on DIY projects. His favorite meetings are the ones conducted at the Friendly Confines, and he lives by two mottos: “Try everything twice,” and “Don’t sweat the small stuff!”

Vice Chair of Development, Sirena Arnaout

Sirena has over five years in the Human Resources and Talent Acquisition industry and involved has volunteered with Roll Call Chicagoland since 2015 beginning with her time at Sears Holdings as a an HR Specialist and Communications chair of their Employee Resource Group (ERG) the Associate Military Support Network (AMSN).

Since starting with Zurich North America in early 2019, she has taken on the Community Engagement chair of their ERG, VETS as well as her role as the Community Relations Chair for Roll Call Chicagoland. Sirena works with transitioning military by offering support with targeted applications, networking, interviewing best practices and resume support.

Communications Chair, Heydo Zando

Heydo Zando is currently serving as a Master Sergeant in the US Marine Corps Reserves. He is assigned as the Chicago Representative to the Marine for Life Program.

Marine For Life Network connects transitioning Marines and their family members to education resources, employment opportunities, and other Veterans services that aid in their career and life goals outside of military service. Marine for Life Network is an extension of the Marine ethos “Once a Marine, Always a Marine”. The Marine for Life Network is a continuation of the Marine Corps’ strategic engagement with Marines and their families across the continuum of the Marine For Life cycle - commencing with their entry into the Corps, symbolized in their earning the Eagle, Globe, and Anchor, through their transition to Veteran Marine status and the return of these quality citizens back to their communities.

Mr. Zando previously served with the Marine Corps Wounded Warrior Regiment. The Wounded Warrior Regiment provides leadership and ensures compliance with laws and DoD instructions related to the support, recovery, and non-medical care of combat and non-combat wounded, ill, and injured Marines, Sailors attached to Marine units, and their family members in order to maximize their recovery as they return to duty or transition to civilian life.

Strategy Chair, Martin Fernandez

Martin Fernandez is a retired Staff Sergeant in the US Army with 4 years of active duty service. Early in his military career, Martin served in the White House Communication Agency (WHCA) as a Signal Systems Engineer providing direct communication support to the President and Vice President of the United States, the White House, and various cabinet members. He served under President Ronald Reagan and Vice President George Bush Sr. After regular Army, Martin served 22 years in the Illinois Army National Guard and deployed for 1 tour in Iraq (2004-2005) as a Battalion S6 (Signal and Communications Officer) providing support for the Big Red 1 Infantry Division and the 101st Airborne Screaming Eagles Division.

Martin’s work experience in the Signal Corp prepared him for a 30+ year career in telecommunications engineer as a civilian. He has worked at companies such as US Robotics, 3Com, and Underwriter’s Laboratories mostly in leadership roles in R&D engineering and new product development.

He is a career transition expert leveraging leadership skills and technology experience to move from telecom to product safety to technology “smart” furniture design in the education sector. Recently, Martin has ventured into the consulting arena and transitioned, once again, to the logistics industry. Martin has leveraged his leadership, project management, problem-solving skills, and can-do attitude to become a successful independent contractor. He has worked on logistics projects supporting Nike, Walmart, and Home Depot.

Martin has a B.A. degree in Interdisciplinary Studies and a minor in Human Resource Development from Northeastern Illinois University. He is also a Certified Scrum Master, Certified Lean Six Sigma Green Belt and Lean Leader, as well as a Supply Chain Professional.

Martin lives in Morton Grove, IL with his wife Lori. He has 5 children over 20 years old (almost empty nesters) and enjoys music, motorcycles, fishing, golf, and politics.