Meet the Staff

Executive Vice President

P: 312.384.1220 x224
E: jrayburn@mca.org

John came to us from the MCA of Indiana where he was the Executive Director since 1997. John has extensive experience and knowledge negotiating in the collective bargaining arena and has been responsible for negotiating multiple pipefitter union agreements throughout Indiana. Additionally, he is currently the secretary of the Industrial Relations Council (I.R.C.). He is a member of the MCAA Association Executives Council’s Executive Leadership Initiative Committee and previously served on MCAA’s Industry Improvement Funds Committee and MCAA’s Career Development Committee.

Senior Vice President

P: 312.384.1220 x223
E: dbulley@mca.org

I’ve been in the mechanical business for over 30 years, including a stint as a design engineer. I like staying ahead of the pack–whether it’s safety, service, green building, technology or re-writing various codes, I think MCA and I are always on the cutting edge. I like fixing problems and I like helping people so this is the perfect job for me. And yes, I’m a nerd. I’ve always preferred the term nerd over geek but you can call me either.

I’m the go-to person for: Technology, Safety, Service, Sustainability, Building Codes and Engineering. I can cover other areas in a pinch since I’ve seen it all.

Hobbies: I love to write and I love public speaking. I also like motorcycles but don’t currently own one because they are too dangerous to ride everyday. But if anyone ever wants to go riding at the national convention let me know, we can rent!

You’d be surprised to know that: I’ve started writing two books and I hope to finish them someday.

Director of Finance

P: 312.384.1220 x225
E: srocque@mca.org

I have been working at MCA since 2001. With over 25 years of accounting experience, I’m responsible for managing the day-to-day finances of MCA as well as PEC, CWB, LMCC, MIPAC Coordinating Committee and IEBB. In addition, I’m also responsible for the Human Resources department. With all that being said, I still love what I do even after all of these years!

I’m the go to person for: Anything to do with Accounts Payable/Receivable, LMCC contractor reimbursements, Audit & Investment Committees.

Hobbies: Letting the dogs take us for long walks, trying new recipes ( and talking my husband into be my taste tester), spending time with family.

You’d be surprised to know that: When traveling I prefer a campsite to a hotel room.

Director of Education

P: 312.384.1220 x230
E: msebek@mca.org

I came to MCA with over 20 years of experience in higher education as both a professor and program chair. I am passionate about learning, and helping others continue their learning journeys as well! I hold a BA in Speech Communications and Journalism, and a MA in Corporate Communications. When not working, I love to travel, read, and spend time with my family.
I’m the go to person for: Anything to do with our educational programming.

Director of Communications & Marketing

P: 312.384.1220 x229
E: jspangler@mca.org

I joined the MCA of Chicago team in January of 2021. I love storytelling, and I can’t wait to continue to tell MCA of Chicago’s story. I come from a journalism background—I worked at several publications before making the move to marketing.

I’m the go-to person for: Anything marketing-related, social media, Marketing Committee, and MCA of Chicago’s publications, whether print or digital.

Hobbies: I love to read with a cup of coffee close by, write my own stories, and do anything outside. I also love photography.

You’d be surprised to know that: I hope to be a published author one day.