Summary
Overview
Work History
Education
Skills
Websites
Accomplishments
Affiliations
Certification
Timeline
Generic

Laksamana Satio Syailendra

Melbourne,VIC

Summary

Data analyst with a strong background in creating insightful, interactive dashboards and experience in leveraging data-driven insights to drive business decisions. Proficient in data visualization, statistical analysis, and data cleaning with a strong background in using tools such as SQL, Python, and Power BI.

Overview

3
3
years of professional experience
1
1
Certification

Work History

Freelance | Data Analyst

Upwork
12.2023 - Current
  • Conducted Passenger Satisfaction and Sentiment Analysis for Garuda Indonesia using SQL and Power BI, analyzing structured and unstructured data, including 5,000+ customer reviews and survey responses. Developed a dashboard to track metrics such as Net Promoter Score (NPS) and sentiment trends, enabling the customer experience team to reduce complaints by 20% through targeted service improvements.
  • Designed and implemented the Sales Analytics Dashboard for Real-Time Performance and Growth Insights for a B2B curtain manufacturing company, using SQL for ETL workflows to automate data cleansing and integration across multiple sources.
  • Enabled the identification of high-growth regions and top-performing products, contributing to a 14% MoM sales increase.
  • Developed the Automated Dynamic Hotel Revenue Metrics Report for a luxury hotel chain, integrating structured financial and unstructured booking data using Excel, SQL, and Power BI. Automated workflows for data processing and created visualization metrics such as ADR, RevPAR, and Occupancy %, contributed to revenue increase of 18% through actionable recommendations.

Fulltime | Software Engineer

PT AVS Simulator
05.2023 - Current
  • Developed a cutting-edge Human-Machine Interface (HMI) application for the KCIC train using Unity and C#, enhancing operational workflows and improving real-time data visualization by 30%, benefiting train operators and maintenance teams.
  • Spearheaded the creation of an intuitive frontend with Unity UI and a robust backend in C#, integrating over 5 complex data streams to achieve a 20% reduction in processing time, thereby improving response times for train control operators.
  • Led a team of 6 on simulator model development using Unreal Engine, achieving 98% accuracy and significantly enhancing training effectiveness for operators.
  • Collected and analyzed data using Python and Excel to create Mass Rapid Transit and Kereta Rel Cepat simulators, incorporating over 250 instruments to improve model fidelity, resulting in a 15% increase in accuracy for transit planners and decision-makers.

Fulltime | Data Analyst

PT Hergitech Karya Sinergi
10.2022 - 04.2023
  • Designed dashboards using Power BI and Excel to support decision-making for regional water authorities, reducing construction time by 15%.
  • Automated data collection for Automatic Water Level Recorded using Python to reduce manual intervention by 30% and enable faster response to flood events.
  • Optimized validation workflow using SQL queries and Python to reduce error detection time by 40%.

Internship | Data Scientist

ID/X Partners
01.2023 - 02.2023
  • Oversaw - Performed preprocessing and data analysis using Weight of Information and Information Value methods.
  • Developed and optimized predictive models, achieving a high performance with a Logistic Regression model scoring 0.82 AUC and 0.52 on the Kolmogorov-Smirnov (KS) Statistic.
  • Refined credit scoring methodologies by recalibrating thresholds and rescaling the FICO Score range to 0-100, improving accuracy and decision-making in credit risk assessments.

Internship | Data Analyst

Home Credit Indonesia
11.2022 - 12.2022
  • Utilized PyCaret as a low-code machine learning library to automates machine learning workflow including preprocess data, transform data, split train-test, compare model, create model, tune model, and finalize model for new dataset prediction.
  • Generated best model using Logistic Regression with score 0.71 on AUC and 0.311 on KS Statistics.

Education

Master of Science - Artificial Intelligence

Monash University
Clayton, VIC
07-2027

Bachelor of Science - Mechanical Engineering

Institut Teknologi Bandung
Bandung, BDG
07.2022

Skills

  • Data Visualization Tools: Looker, Tableau, Power BI
  • Programming Languages: Python, R, SQL, SAS, DAX
  • Software: MS Office, PostgreSQL, Google Cloud Platform, Spark, Google Cloud Platform, Power Automate
  • Languages: Indonesian (Native), English (IELTS: 7/9)

Accomplishments

  • Modified and improved existing databases to reduce processing time by [number] and improve accuracy by [number]%.

Affiliations

  • Rakamim Data Science Community October 2022 – April 2023
  • Himpunan Mahasiswa Mesin ITB (HMM ITB) October 2017 – July 2019

Certification

  • CBAP - Certified Business Analysis Professional

Timeline

Freelance | Data Analyst

Upwork
12.2023 - Current

Fulltime | Software Engineer

PT AVS Simulator
05.2023 - Current

Internship | Data Scientist

ID/X Partners
01.2023 - 02.2023

Internship | Data Analyst

Home Credit Indonesia
11.2022 - 12.2022

Fulltime | Data Analyst

PT Hergitech Karya Sinergi
10.2022 - 04.2023

Master of Science - Artificial Intelligence

Monash University

Bachelor of Science - Mechanical Engineering

Institut Teknologi Bandung

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Laksamana Satio Syailendra