Our Staff

We have developed a culture of collaboration and learning at Trillium. You may have a primary point of contact, but behind the scenes, our teams work together to combine strengths and provide quality services. Each member of the team brings a diverse personal and professional background that we hope meets the needs of the businesses and clients we serve.

Program Leadership

Karen Williams

Karen - Bio Photo 12.20.18 Large for website

Jenna Ziegler

Program Director (Kitsap, Pierce and Yakima)

She/her pronouns
As Program Director, Jenna oversees services in Pierce & Kitsap counties and supports operations across the organization. She joined Trillium in 2008 as an Employment Consultant and then worked as a Pierce County Program Manager for 11 years. During that time Jenna focused on applying her direct service experience and systems knowledge to build partnerships and improve services across agencies. She led the start of School to Work in Pierce County and built curriculum in collaboration with school staff and other providers to enhance student vocational preparation. Jenna is passionate about direct client services, building more inclusive communities, and actively engaging in systems best practices and legislative advocacy. Jenna has worked in human services since graduating from Central Washington University with a bachelor’s degree in Social Services and became a Washington State Certified Employment Consultant in 2010.

Call:253-735-1553Write:Jenna@trillium.org

Christina Frye

Program Director (King and Clark)

She/her pronouns
Christina started working with Trillium in 2013 as an Employment Consultant. She also supported the Clark County team as a Program Manager for 5 years. Christina is passionate about supporting our clients to be successful and finding creative ways for them to make connections with others in our communities. Christina graduated from Washington State University in Vancouver in 2013 with a degree in Public Affairs and a minor in Women’s Studies. She completed the Leadership Clark County program in 2016 and was recognized by the Vancouver Business Journal to be one of the recipients of the Accomplished and Under 40 series in 2021. Christina enjoys connecting with people in our community and advocating for the clients we serve.

Call:253-735-1553Write:Christina@trillium.orgLanguage(s):American Sign Language

Aimee Nelson

Learning and Development Manager

She/her pronouns
Aimee has been working with people with disabilities throughout her career and specifically focused on Supported Employment since joining Trillium in 1998. She believes that everyone can work if we can figure out how to teach them. She specializes in School-To-Work programs, ensuring students with developmental disabilities graduate job-ready and employed. Aimee also trains in Systematic Instruction and provides consultation to other employment organizations throughout Washington state. She is the lead instructor for the fall quarter of Washington State’s Employment Professional Certificate program. As a certified Right Response Instructor Aimee offers this training internally and externally to employment organizations. Additionally, she has a degree in Psychology and a minor in Human and Family Development. Aimee holds the Employment Professional Certificate.

Call:253-735-1553Write:Aimee@trillium.org

Emma Armstrong

Admin Systems Coordinator

She/her pronouns
Emma Armstrong graduated from Western Washington University in 2009 with a Bachelor’s Degree in Cultural Anthropology and a minor in Psychology. Her knowledge of the diversity found within cultures, an enduring passion for the human services field, and her varied work experience had prepared her well for joining Trillium’s team in 2012 as an Employment Consultant. Currently, Emma has evolved her position to be an administrative support to all staff at Trillium, maintaining and updating programmatic systems, coordinating and training on our database system and managing projects as they arise. Emma is also a current member of the Trillium Equity Team and has been a member since it's debut in 2019. Emma spends her free time enjoying her family, gardening, camping, crafting with her girls and using her skills in photography.

Call:360-698-6659Write:Emma@trillium.org

Admin Staff

Elise Crick

Scott Langfitt

Mindy Pecelj

Human Resources Assistant

She/her pronouns
Mindy was born and raised in Seattle. She attended Highline College in 2017 where she obtained an AA degree in Psychology. Through her years of experience in customer service and leadership skills, she discovered her true passion of helping others, which is what led her to Trillium. Mindy’s patient nature and desire to accomplish goals is what drew her to the field of supported employment. She has obtained skills through job experience which demonstrated high integrity and ownership over the work she managed. Mindy is a people person who values building trusting relationships. In her free time, she enjoys painting, playing board games, and listening to music. She recently bought her first home in Federal Way. Mindy also loves animals and once raised a baby squirrel she named "Squeaky." After releasing Squeaky into the wild, he continued to visit her house daily for peanuts.

Call:253-735-1553Write:Mindy.Pecelj@trillium.org

David Dartt

Administrative Assistant

He/him pronouns
David is a lifelong resident of Washington State. He was born in Auburn but moved to Sumner at an early age, graduating from Sumner High School where, during his senior year, was introduced to Trillium, by Trish Borden, a member of the Auburn Rotary Club.

Shortly after graduation, he moved back to Auburn. Trillium assisted him in obtaining a job with a local grocery store where he worked for 18 months. After receiving a job offer with a law firm in Seattle (with assistance from Trillium), he left the grocery store and began working for the law firm where he remained for 23 years.

David loves socializing and meeting new people. He’s kept in contact with several former co-workers from the law firm and meets them for lunch in Seattle on a monthly basis. He enjoys going for daily walks, watching NASCAR, and participating in many of the Auburn Parks & Recreation programs.

Call:253-735-1553

Trillium Program Leadership/Admin Staff