Klarissa Karosen

Leadership & Team Management

• Served as a core member of the senior leadership team, managing direct reports, mentoring faculty and staff, and overseeing multiple cross-functional working committees to drive strategic initiatives, enhance employee engagement, and ensure organizational alignment with mission and values.

Talent Acquisition, Retention & Employee Experience

• Designed an inclusive hiring framework and custom recruitment tracking matrix to attract and retain top talent.
• Interviewed and assessed all candidates, ensuring alignment with mission, values, and culture.
• Created onboarding programs that enhanced early employee engagement and strengthened connections to the school community.
• Provided compassionate mediation and resolution for reports of bias and other community concerns.

Strategic Learning & Organizational Development

• Designed and implemented a year-round professional learning program for 100+ faculty and staff, creating a culture of continuous growth and reflective practice.
• Built and led a 21-member internal leadership team to facilitate monthly “learning pods” and mentorship opportunities.
• Developed targeted training for administrators, educators, and support staff, aligning professional development with school-wide goals.

Community Engagement & Organizational Communication

• Reviewed and edited all external communications and marketing materials to ensure alignment with school values and mission.
• Authored crisis communications and sensitive messaging to uphold the school’s reputation.
• Partnered closely with the Marketing team to craft and share compelling narratives that celebrated the school’s culture, achievements, and community impact.

Instructional Design & Teaching

• Taught history and social sciences using project-based learning to engage students and promote critical thinking.
• Created a 6–12 advisory curriculum centered on wellness, healthy habits, and social-emotional learning.
• Facilitated multi-day workshops, retreats, and orientation programs to strengthen school culture and community bonds.

Equity Leadership & Student Engagement

• Provided personalized support to all community members by identifying and implementing accommodations, ensuring equitable access to financial aid resources, and coordinating specialized services to promote inclusion and well-being.
• Founded inclusive student spaces (“The Intersection” and “The Vibe”) to support dialogue, belonging, and leadership development.
• Organized annual cultural celebrations, keynote speaker events, and student-faculty affinity group programming.
• Advised student-led organizations and empowered students to lead initiatives celebrating diversity and creativity.

• Led students in innovative and technologically advanced classroom lessons that included frequent use of laptops and Google Classroom to promote higher-order thinking, as well as develop the technical skills required for college and a high-tech job market.
• Planned individualized lessons for English Language Learners, Special Education, and underperforming students, including scaffolding, differentiation, and frequent formative assessments.
• Collaborated with the Social Science department to increase student performance, which included common skills and measurable benchmarks.
• Served as advisor to the Black Student Union Club.

• Prepared State Income, Sales & Use, Property, and Unclaimed Property returns.
• Led internal tax training to address billing and compliance issues.
• Managed indirect tax audits and partnered with external auditors and internal teams.
• Evaluated taxability of new products with cross-functional partners in product and sales.
• Implemented Vertex and Sabrix systems; assigned tax codes for new SKUs.
• Filed R&D refund claims and supported state apportionment calculations.
• Completed journal entries and account reconciliations to support monthly close.

• Filed multi-jurisdictional Sales & Use Tax returns and annual business licenses.
• Maintained exemption certificate database (TDM) and ensured audit readiness.
• Collaborated with product/sales teams on taxability of new items.
• Resolved SAP and Vertex discrepancies for improved reporting.
• Managed tax rate mapping in ASK MANMAN; supported audit data requests.