Open to opportunities

David Kalebi User

@davidkalebiuser

Message

Teacher-administrator and CEO blending education leadership with operational management.

Tanzania

Message

What I'm looking for

I seek roles that combine educational leadership and hands-on teaching with opportunities to develop programs, mentor staff, and drive measurable institutional or business growth in community-focused organizations.

I am an education professional and administrator with classroom experience in Physics and Biology and a demonstrated record of improving institutional performance through curriculum alignment, student support, and teacher mentoring. I combine hands-on teaching with ongoing professional development to stay current in pedagogical best practices.

As CEO of a small business, I led operational initiatives that created new revenue streams, improved employee satisfaction, and sustained business growth. I apply project management, team building, and conflict-resolution skills across both school and business settings.

I bring practical technical skills (MS Office, Excel, PowerPoint, photo editing and introductory AI tool usage), multilingual communication (English–Swahili), classroom management, musical instruction, and baking expertise to roles that require leadership, creativity, and community engagement.

Experience

Work history, roles, and key accomplishments

Current

Chief Executive Officer

Current

Nulo Bakery

Jul 2023 - Present (2 years 2 months)

Spearheaded operational initiatives and new product launches to drive revenue growth, and cultivated a positive work culture that improved employee satisfaction and retention.

Operations Management Product Development Team Leadership Revenue Growth Baking Marketing Customer Service Project Management

Current

Assistant Academic Master

Current

Kisiba Secondary School

Jul 2022 - Present (3 years 2 months)

Developed strong relationships with students, parents and colleagues, implemented classroom routines, and mentored teachers to improve instructional quality and student outcomes.

Classroom Management Mentoring Physics Practical Biology Practical Lesson planning Communication Conflict Resolution Physics Practicals

Teacher

Kwanza International School

Apr 2020 - Jun 2022 (2 years 2 months)

Prepared and implemented lesson plans in mathematics and sciences, supported ESL and attention-challenged learners, and led extracurricular music and sports activities to boost student engagement.

Lesson planning ESL Classroom Management Mathematics Biology

Education

Degrees, certifications, and relevant coursework

Mwenge Catholic University

Bachelor of Science with Education, Physics & Biology

Awarded a Bachelor of Science with Education specializing in Physics and Biology, with Tanzania Sign Language as an optional course to support diverse learners.

Bihawana High School

Advanced Certificate of Secondary Education, Physics, Chemistry & Biology

Completed Advanced Certificate of Secondary Education with specialization in Physics, Chemistry and Biology and minors in Basic Applied Mathematics and General Studies.

Elerai Secondary School

Certificate of Secondary Education (CSEE), General Secondary Education

Completed Certificate of Secondary Education Examination (ordinary level) with satisfactory grades.

Dar es Salaam International Academy (DIA) Teacher Training

Teacher Training Certificate, Teacher Training / Professional Development

Completed a teacher training program covering hybrid learning, interdisciplinary teaching, child protection, classroom management, literacy for English language learners, and differentiated instruction.