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Chelsea Rahma

@chelsearahma

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Data analyst skilled in Excel, SQL, and Power BI—turning data into dashboards and actionable insights.

Indonesia

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What I'm looking for

I’m looking for an entry-level data analyst role where I can build dashboards, automate reporting, and turn SQL/Excel/Power BI outputs into actionable insights that support operational decisions and business strategy.

I’m a Mathematics graduate who translates complex data into clear reporting, dashboards, and decisions. I’ve analyzed and validated 20–40 daily reports as a PlatformAdministrator Intern, building visualizations for real-time monitoring and supporting cross-divisional data needs.

I also improve how teams work by automating reporting with advanced Microsoft Excel (formulas, Pivot Tables, and Macros/VBA), increasing operational efficiency by ~30%. From my SQL Data Analyst Project, I clean and structure raw datasets, write queries for filtering/joins/aggregation, and connect it to statistical forecasting experience (Holt’s and Brown’s Double Exponential Smoothing with grid search, using R and basic Python).

Experience

Work history, roles, and key accomplishments

SQL Data Analyst Project

Ngulikdata

Mar 2026 - Apr 2026 (1 month)

Cleaned and structured raw datasets by handling missing values and inconsistent formats. Wrote SQL queries using filtering, joins, and aggregation to extract analysis-ready insights.

SQL Data Cleaning Data Structuring SQL Joins Filtering Aggregation Data Analysis CASE WHEN

Platform Administrator Intern

BTPN Syariah

Sep 2025 - Dec 2025 (3 months)

Managed, validated, and analyzed 20–40 daily data reports to support cross-divisional reporting needs and built dashboards for real-time monitoring. Developed Excel automation (formulas, Pivot Tables, and VBA), improving operational efficiency by ~30%.

Data Reporting Data Validation Data Analysis Dashboard Development Power BI Excel Pivot Tables VBA Data Visualization Monitoring Automation

Administrative Staff Intern

Badan Pengelolaan Keuangan Daerah (BPKD) DKI Jakarta

Jan 2024 - Feb 2024 (1 month)

Processed 5–20 documents daily by managing correspondence through government portals and creating disposition sheets. Distributed documents to relevant departments and maintained organized records of meeting schedules and incoming mail in Excel.

Document Management Data Entry Excel Record keeping Administrative Scheduling Reporting

Education

Degrees, certifications, and relevant coursework

Syarif Hidayatullah State Islamic University Jakarta

Bachelor of Mathematics, Mathematics

2021 - 2025

Activities and societies: Relevant coursework: Exploratory Data Analysis, Categorical Data Analysis, Mathematical Statistics, Financial Mathematics.

Bachelor of Mathematics (2021–2025) with coursework in exploratory data analysis, categorical data analysis, mathematical statistics, and financial mathematics. Final project forecasted Indonesia’s total fertility rate using Holt’s and Brown’s double exponential smoothing with grid search.