Bahtera Wan Ramadan
@bahterawanramadan
Data analyst building SQL, Python, and Power BI projects, including a ride-hailing failure analysis.
IndonesiaWhat I'm looking for
Across my independent analytics projects, I’ve turned raw data into business findings, dashboards, and recommendations. I’ve completed 10+ end-to-end projects across areas including HR, retail, manufacturing, marketing, and logistics.
In my ride-hailing booking failure analysis, I analyzed more than 103,000 bookings using SQL and chi-square testing. I found that the roughly 41% failure rate was systemic rather than segment-specific and identified driver-side cancellations as the dominant cause.
As a School Administration Operator at SDN 8 Atu Lintang & SDN 14 Linge, I manage administrative systems and compile monthly student, staff, and financial reports for school management. I’m also an undergraduate studying for a B.A. in Statistics at Universitas Terbuka.
Experience
Work history, roles, and key accomplishments
Data Analyst — Independent Projects
Portfolio & Business Case Studies
Jan 2026 - Present (9 months)
Completed 10+ end-to-end analytics projects across HR, retail, manufacturing, marketing, and logistics, translating raw datasets into business findings, dashboards, and recommendations using SQL, Python, Power BI, and Excel. Applied statistical methods including chi-square, t-test, and ANOVA to validate business hypotheses.
School Administration Operator
SDN 8 Atu Lintang & SDN 14 Linge
Jan 2024 - Present (2 years 9 months)
Manage Dapodik, Excel, and other administrative systems across two schools, maintaining accurate records for 130–200 students and staff. Compile and submit monthly reports spanning student, staff, and financial data.
Education
Degrees, certifications, and relevant coursework
Universitas Terbuka
Bachelor of Arts, Statistics
2023 -
Pursuing a B.A. in Statistics with an expected graduation in 2027.
Tech stack
Software and tools used professionally
Availability
Location
IndonesiaAuthorized to work in
Portfolio
github.com/ramadhan-dataSalary expectations
Social media
Job categories
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