Experienced leader returns to Pennoni to expand training services across the Mid-Atlantic region
PHILADELPHIA—Pennoni, a multidisciplinary engineering firm headquartered in Philadelphia, is pleased to announce the appointment of Jessica Warren as Environmental, Health, & Safety (EHS) training manager in the firm’s Mechanicsburg, PA, office and training center. With nearly 15 years of experience in environmental science, regulatory compliance and project management, and more than two decades of leadership in education, nonprofit and business development, Jessica brings a rare blend of technical expertise and strategic vision to this role.
In her new role, Jessica will oversee the development and delivery of EHS training programs, building upon Pennoni’s current offerings to expand service capabilities across the Mid-Atlantic. She will report to John-Thomas (JT) Graupensperger, PWS, office director and EHS division manager.
Jessica holds a Bachelor of Science in Engineering & Applied Science from the California Institute of Technology and a Master of Business Administration from Elizabethtown College, where she focused on leadership and sustainability. Her career has spanned consulting engineering firms in Southern California, Georgia and Pennsylvania, including a previous role at Pennoni as environmental division manager in our former Camp Hill office from 2003 to 2004. Her return to the firm marks a meaningful full-circle moment.
“It is great to be working with Jessica again, and I look forward to seeing what she does in this role as we continue to build upon our current program and grow our training services across the Mid-Atlantic. Jessica brings not only deep technical knowledge but also a passion for mentorship, client service, and collaboration that will be invaluable as we expand,” said Graupensperger.
In addition to her technical background, Jessica has held senior leadership positions in education at Harrisburg Academy, Fusion Academy and Harrisburg University, where she led strategic initiatives and mentored both students and professionals. She is also a highly engaged member of the Central PA community, serving on the Board of the American Marketing Association of Central PA, the West Shore Chamber of Commerce Program Committee and the YWCA Women of Excellence Class of 2025. She volunteers with the Caltech Alumni Mentoring Program and the Women in Technology Committee at the Technology Council of Central PA.
“It’s a true honor to return to Pennoni, an organization that gave me some of my earliest opportunities in environmental consulting. This role brings together everything I value: technical training, strategic leadership and empowering others through education. I’m excited to help grow our EHS training services and contribute to the professional development of our teams and clients across the region,” says Warren.
Jessica’s appointment underscores Pennoni’s commitment to expanding its Environmental, Health, & Safety services and investing in top-tier leadership that supports the professional growth of staff and clients alike.