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Data Analyst & AI Engineer

Hey, I'm Alvy

A data analyst and machine learning enthusiast from Indonesia, turning raw data into decisions that matter. I bridge the gap between analytical thinking and real-world impact — from predictive models to operational dashboards.

About Me

A bit about myself

I'm a Physics graduate from Airlangga University based in Surabaya, with hands-on experience in data analysis, machine learning, and AI-driven solutions. My background in physics sharpened my analytical instincts — I love dissecting complex problems and distilling them into clear, actionable insights.

Currently at PT Berkah Tani Mukti, I build operational dashboards and data pipelines that drive real business outcomes — from identifying Rp 397.9M in cost savings to implementing customer segmentation models with 97% accuracy. Previously, I collaborated with PT Danone and Airlangga University on a real-time object detection system for workplace safety monitoring, achieving 90% accuracy and just 10 ms inference time.

I thrive at the intersection of data, technology, and business impact. Whether I'm wrangling messy datasets, training neural networks, or presenting findings to stakeholders, I bring both technical rigor and clear communication to every project. I'm always looking for opportunities to grow and contribute to meaningful, data-driven work.

Tech Stack

Languages

PythonSQL

Frameworks & Libraries

TensorFlowYOLONeural NetworksSARIMA

Tools

TableauLooker StudioGoogle WorkspacesMicrosoft OfficeONNX Runtime

Databases & Platforms

PostgreSQLGoogle BigQuery

Experience

Where I've worked

Data Analyst Staff

PT Berkah Tani Mukti

Oct 2025 – Present

Built 8+ operational dashboards covering sales, logistics, fleet maintenance, returns, and receivables — uncovering Rp 397.9M in cost savings and exposing a 72% revenue concentration risk across key distributors. Analyzed field sales efficiency across Java regions, revealing a 3.12% YoY improvement and optimizing resource allocation for 10+ representatives managing 1,753+ retail partners. Implemented RFM segmentation and predictive models with 97% accuracy for 2,488 customers, reducing bad debt risk by flagging Rp 25.17B in critical receivables.

PythonSQLTableauLooker StudioRFM SegmentationPredictive Modeling

Research Project Member

PT Danone × Universitas Airlangga

April 2025 – Sept 2025

Developed a real-time object detection model to identify ladder-holding individuals in workplace environments, achieving 90% accuracy. Implemented RTSP streaming for continuous safety monitoring and deployed the model using ONNX Runtime, achieving just 10 ms inference time for low-latency processing in safety-critical settings.

PythonYOLOONNX RuntimeRTSP StreamingComputer Vision

Data Analyst Intern

PT Semesta Integrasi Digital

February 2024 – June 2024

Generated 6 key insights addressing critical business problems and presented analytical findings to 4 stakeholders. Earned the Best Final Project title among 60+ participants. Developed an interactive e-commerce sales dashboard with dynamic filtering by date and region, enhancing sales trend analysis and boosting operational efficiency.

PythonSQLTableauDashboard Development

Digital Power Plant Intern

PT PLN Nusantara Power

February 2024 – May 2024

Conducted an in-depth efficiency analysis of PLTU power plants, processing 5,000+ rows of operational data. Identified 4 key KPIs to assess plant efficiency and detect operational bottlenecks. Evaluated system performance using Linear Regression, revealing optimal efficiency at a specific gross load from the High-Pressure Heater (HPH).

PythonLinear RegressionData AnalysisKPI Development

Data Analyst Intern

PT PLN (Persero)

January 2024 – February 2024

Developed a predictive model using SARIMA to estimate daily transformer load from 5 months of historical data. Identified load growth trends and potential capacity risks, ensuring compliance with the N-1 security standard. Achieved MAE of 0.4 for Trafo 1 and 2.4 for Trafo 2.

PythonSARIMATime Series ForecastingPower Systems Analysis

Machine Learning Specialist

Bangkit Academy (Google, GoTo, Traveloka)

August 2023 – January 2024

Collaborated with Cloud Computing and Mobile Development teams to develop a color detection application for individuals with color blindness. Developed and optimized a machine learning model achieving 87% prediction accuracy. Converted the model to TensorFlow Lite for real-time mobile deployment. Graduated with an A grade (92/100).

PythonTensorFlowTensorFlow LiteMachine LearningMobile Deployment

Projects

Things I've built

Customer Segmentation & Receivables Risk Engine

Data Analyst · PT Berkah Tani Mukti

Designed and deployed an RFM-based customer segmentation system for 2,488 customers, paired with a predictive model reaching 97% accuracy. The system flags high-risk receivables — including Rp 25.17B in critical accounts — enabling the finance team to act proactively and reduce bad debt exposure significantly.

PythonRFM SegmentationPredictive ModelingSQLLooker Studio

Workplace Safety Object Detection System

ML Engineer · PT Danone × Universitas Airlangga

Built a real-time computer vision system to detect ladder-holding individuals in industrial environments, achieving 90% accuracy. Integrated RTSP streaming for continuous monitoring and deployed with ONNX Runtime for 10 ms inference — making real-time safety compliance feasible at scale.

PythonYOLOONNX RuntimeRTSPComputer Vision

Operational Business Intelligence Dashboards

Data Analyst · PT Berkah Tani Mukti

Developed 8+ interconnected dashboards spanning sales performance, logistics, fleet maintenance, return management, and receivables tracking. The dashboards surfaced Rp 397.9M in actionable cost savings and revealed critical distributor concentration risks, directly informing executive-level decisions.

TableauLooker StudioSQLPython

Color Blindness Detection App (Bangkit Capstone)

Machine Learning Specialist · Bangkit Academy

Collaborated across a cross-functional team (ML, Cloud, Mobile) to build a mobile accessibility app for color-blind users. Trained and optimized a color detection model to 87% accuracy, then converted it to TensorFlow Lite for seamless real-time inference on Android devices.

PythonTensorFlowTensorFlow LiteMachine Learning

Contact

Let's work together

I'm always open to new opportunities, exciting data challenges, and conversations about AI and analytics. Whether you have a project in mind or just want to connect — drop me a message, I'd love to hear from you.