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Work Background
PT Kalbe Farma, TbkHead of Data Science and Business Insights
Jun. 2023Jakarta, IndonesiaBuilding data science strategies and initiatives at South East Asia’s largest pharmaceutical, healthcare & nutrition company ($KLBF). Report directly to the CDO (Chief Data Officer). Leading data science & analytics teams at holding group and subsidiary (Cakra Radha Mustika) Team achievements (credits to the team):
- built demand/supply forecasting model with performance up to 10% of MAPE (90% accuracy) for some products which could significantly reduce overstock/ understock problems
- improved logistic routing calculation efficiency from initially 2 minutes per trip to less than 1 second / trip through optimization & automated python script
- optimizing CRM marketing automation through rigorous AB Testing, improving conversion rate more than 5% compared to the control group
PT. Cakra Radha Mustika (Kalbe Group)Head of Data Science & Analytics
Jun. 2023Jakarta, IndonesiaAssignment from Kalbe group, I lead data science & analytics team to support business in the CRM field. Highlighted projects in the team:
* AI-based marketing automation: leveraging reinforcement learning to optimize which variables drive the highest impact in marketing campaigns. Proven to improve CVR (conversion rate) by more than 50% compared to the control group through rigorous AB testing experiment
* AI-based business intelligence: implement AI chatbot on analytical dashboard to help answer business questions by the business stakeholders
Viritech.aiFounder & CEO
Jan. 2023Offering data science, AI and business analytics consultation and implementation.
Past clients:
* PT. Telkom Indonesia, Tbk: data science consultation
* PT. Astra International, Tbk: data science boot camp * Undisclosed insurance company in Indonesia: insurance fraud detection contact me at dipta@viritech.ai
GoTo GroupData Science Manager, Core Experience, Consumer Platform
Apr. 2022 - Jun. 2023Lead team of data scientists and data analyst to improve customer experience and accomplished over 10% of improvement in CTR as measured by internal AB testing (statsig) by implementing personalization on Gojek homepage components through intent classification with NLP, card ranking, etc.
GoTo GroupData Lead, Risk (Driver Trust and Safety)
Jan. 2021 - Apr. 2022* Led data team consists of data scientists & analysts to prevent fraud and scams happening in driver ecosystems to ensure safety of the overall platform and potentially saved over XX million USD by implementing a Tensorflow Autoencoder-based anomaly detection system, which reduced incentive abusers by more than 80%.
* Reduced scams from illegal apps and Fake GPS apps by more than 90% by building a fraud detection model which classifies GPS ping patterns and other human behavior patterns, improved overall customer experience based on internal surveys. * Tech stacks: Python, SQL, Google Cloud (BigQ, GCS, ML Flow), Airflow, Shell script, Docker, Git, parallel computing, Flask. ML libraries (Pandas, Dask, Pandarallel, Numpy, Plotly, Seaborn, Sklearn, Tensorflow, XGB, FB Prophet, etc)
IYKRAMentor, Data Science
Nov. 2020 - Aug. 2021Mentor for solver society to solve analytics projects.
https://iykra.com/solver-society/
The World BankConsultant - Data Scientist
May. 2018 - Jun. 2019IndonesiaGenerated report and insights for Dana Desa (village funding) project for the Ministry of Economics of Indonesia by mining insights from hundreds of pages of free texts with NLP. Published by Mr. President Joko Widodo on his tweet as attached * Tech stacks: Microsoft Azure, Databricks, Pyspark, Python, SQL, NLP libraries
GoTo GroupSenior Data Scientist
Oct. 2017 - Jan. 2021* First hire of Senior DS in Gojek Jakarta office
* Tech lead of a team of data scientists and analysts to solve variety of problems, currently focusing on improving trust and safety for millions of driver partners, customers and merchants. * Conduct end to end data science processes: understanding business problems, conducting statistical analysis, developing features and advanced analytics model, deployment on production level code, and presentation.
* Provide mentorship for junior data scientists and analysts.
* Seasonal data science bootcamp teacher for new joiners
* Tech stacks: Python, SQL, Google Cloud (BigQ, GCS, ML Flow), Airflow, Shell script, Docker, Git, parallel computing, Flask. ML libraries (Pandas, Numpy, Plotly, Seaborn, Sklearn, Tensorflow, XGB, FB Prophet, etc) My work includes, but not limited to:
* Fraud detection * Price optimization
* Vehicle routing optimization
* Churn Prediction
AmarthaLead Data Scientist
Mar. 2017 - Oct. 2017Greater Jakarta Area, IndonesiaTeam Achievement:
- Developed a machine learning based credit scoring system to keep non-performing-loan (NPL) below 0.5%. Responsibilities:
Lead a team of data scientists, data analysts, engineer and psychologist to develop a dynamic credit scoring system for unbanked people. This system is based on the borrowers' profile and psychometric survey.
* Tech stacks: R, Python, SQL, Cuda C
AmarthaData Scientist
Nov. 2016 - Mar. 2017Jakarta
Carnegie Mellon UniversityRobotic Research Programmer/ Analyst
Jan. 2016 - Nov. 2016Pittsburgh, PennsylvaniaSchool of Computer Science - Robotics Institute - Field Robotics Center Worked on implementation and testing issues associated with the localization / calibration/ mapping system for commercialized field robotics projects such as Autonomous Vehicle.
implemented and tested Extended Kalman Filter and sensor fusion.
Mostly work on ROS and C++.
Caterpillar Inc.Robotics System Engineer- Perception Development
Apr. 2015 - Dec. 2015Pittsburgh, Pennsylvania* Understand overall system requirements in order to develop and document supporting subsystem requirements and turn them into a software design.
* Support existing autonomy software by learning and documenting the existing algorithms.
* Work with multiple teams across the globe to integrate software changes and ensure they are validated appropriately.
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