Available for hire · Kuala Lumpur

Errynie
Cyril

> |

Data Analyst with a track record of 99% data accuracy across 10,000+ records and cutting reporting turnaround by up to 50% through automation. Turning messy operational data into reliable, decision-ready insights.

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0% Data Accuracy Rate

0K+ Records Maintained

0% Reporting Time Saved

0+ yrs Experience

01 / Skills

What I Work With

// Data & Querying

SQLJOINs AggregationsData Validation

// Spreadsheets & BI

Excel AdvancedPivot Tables Power QueryDashboard Dev

// Programming

PythonPandas Data CleaningAutomation

// Analytics

KPI ReportingData Visualization Business IntelligenceReconciliation

// Currently Learning

Power BITableau

// Soft Skills

Data GovernanceStakeholder Comms Attention to DetailProblem Solving

02 / Projects

What I've Built

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📊

Sales Performance Dashboard

Interactive Excel dashboard analyzing RM16.2M revenue across 1,500 transactions. Dynamic slicers for product, region, salesperson & month with auto-updating KPIs.

ExcelPower Query KPI ReportingSlicers

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🛡️

Insurance Claims Analytics Dashboard

End-to-end analytics dashboard built independently — data cleaning, structuring, and full visualization across a large insurance claims dataset.

ExcelPower QueryData Visualization

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⚙️

Freelance Transaction Analysis + Automation

Python script automating CSV/SQLite data cleaning, aggregation, and reporting — reducing manual processing time by ~20%.

PythonPandas SQLiteAutomation

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🔍

SQL Data Verification

Verified 500+ transaction records using SQL JOINs, aggregations, and filters to identify inconsistencies and validate data integrity across multiple tables.

SQLJOINs Data IntegrityAggregations

03 / Experience

Where I've Worked

Dec 2023
— Jul 2025

Data Analyst / Operations Support

AS White Global Malaysia · Kuala Lumpur

Maintained 99% data accuracy across 10,000+ operational records with zero escalation incidents.
Reduced reporting turnaround by 30–50% by building automated Excel reporting tools used by cross-functional teams.
Translated business requirements into SQL queries and analytical outputs supporting faster decision-making.
Identified recurring data quality issues and implemented preventive checks, improving data governance practices.

Aug 2023
— Nov 2023

Sales Administrator

CSN Solutions Sdn Bhd · Kuala Lumpur