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Deborah has over 27 years of experience strengthing communities. Specializing in nonprofit, her expertise lays in asset management, leadership development, refinancing and renovations, community visioning, and social and educational program development.  


Deborah Backus

Executive Director

Cherry Wu

Office Manager

Cherry maintains office services by organizing office operations and procedures; preparing payroll; controlling correspondence; designing filing systems; reviewing and approving supply requisitions; assigning and monitoring clerical functions. Designs and implements office policies by establishing standards and procedures; provides oral, written translation and supervising events and activities.  

Xiaoping Wang
Community Coordinator
Irene Matos-Chan
Senior IT Program Manager

Xiaoping Wang has been working at Castle Square, as the community coordinator, since 2008. Her job focuses on: managing senior programs and activities; supervising events; and providing daily intake services to residents who are seeking assistance. Some services include Chinese translation, resources referrals, applying for electricity discount program, phone lifeline program, food stamp program, and senior health plan, etc. 

Irene Matos Chan Square Tech Training & Senior Administrative Systems Manager, was born and raised in Boston’s south end Irene comes from an enriching Irish and Puerto Rican culture. She is a former Castle Square resident and has been employed at CSTO for over 10 years. Irene is certified in Microsoft Word, Excel and PowerPoint , A+/Net+ certification, CTT certificate which is the international board of standards for training performance and instruction (IBSTPI) core competencies for technical trainers and certificate for software application specialist. She is also certified through the BEST Initiative run by Health Resources in Action. 


She has become an innovative manager of the Square Tech Program. Her passion is to mentor youth and to inspire the passion for community service and to educate them on the use of technology to improve access, promote opportunity and engage learners is the way forward for relevant 21st century learning.

Madeline Mühlberg
Teen Program & Youth Development Manager
Sophia Mei
Square Roots Manager

Madeline Mühlberg, Teen Program & Youth Development Manager, is a Boston-based artist and educator. She received her Bachelors of Fine Art in 2014 from the School of the Museum of Fine Arts, Boston. In 2015, she received her Masters in Arts Teaching, Art Education from Tufts University. She is a licensed K-12 art educator in the state of Massachusetts. She is also certified through the Youth Opportunities Program and Appalachian Mountain Club as well as through the BEST Initiative run by Health Resources in Action. 


Madeline is a working and exhibiting photographer and artist who has been in group shows in Washington D.C., Boston, MA, and Portland, ME. Madeline has curated multiple shows in both Boston and Washington D.C.. Having grown up in multiple cities throughout the United States, she understands the importance of a strong urban education. It has been her goal to provide Boston youth with an art-based education that empowers them both academically and culturally while equipping them with the necessary life-skills needed to become empathetic and active citizens. She runs the day-to-day programming for the Teen Program as well as acting as a teaching artist.


Sophia Mei, Square Roots Program Manager, is a Boston native . She earned her BA in Communication Studies from Northeastern University in 2015. She has been involved with the CSTO Community Center since 2008. Sophia did her Cooperative Education and Career Development (coop) at Square Roots as the interim Program Coordinator for most of 2014.


Sophia grew up in Boston attending after schools and understands the need for quality out-of-school programming for urban youth. Speaking Mandarin and Cantonese has helped her form important relationships with parents and the Castle Square community throughout the years. Sophia runs day-to-day programming which includes academic tutoring and enrichment activities for ages 6-14 year old youths. Her aim is to provide a safe and welcoming environment for the youths enrolled in Square Roots. She also works to create job opportunities that empower her staff to develop leadership and teamwork skills.  


Letissia Scott
IT Technician

Letissia Scott is an IT Technician at Square Tech she has been with the Square Tech program for two and half years. She graduated from Bunker Hill Community College with an Associate Degree in Computer Networking and Administration in May of 2016. She first came to Square Tech June 2014 as a Summer Intern from Bunker Hill for a 3 credit course. Along with working in Square Tech that summer, she taught three Power Point classes a week for the Square Roots program ages 5-12.


She remained with the program afterwards as a Volunteer and then Work Study through Bunker Hill. During that time she continued to learn and work at Square Tech and gave her time helping the teens and Square Roots when needed. She was officially hired upon graduating in the summer of 2016. She now uses what she learned to teach teens Computer about Networking and help Square Tech with all computers and no-computer issues.

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Thi Tran
Square Roots Program Coordinator

Thi Tran, Square Roots Program Coordinator, was born and raised in Dorchester. Thi earned her Bachelors of Science in Natural Resources Conservation at the University of Massachusetts, Amherst. She has been involved with Square Roots as a Group Leader since 2018.

Thi has been working with youths (ages 6-18) since 2009 as a leader and educator through local non-profits in South Boston and Charlestown to raise environmental awareness and creating youth-led action projects. Through her experience working in day schools, afterschools, and enrichment workshop programs, she joined Square Roots to empower young people to excel, find their place in their community, and work towards a passion.

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