Curriculum vitae

Resume

Experience

ML Research Engineer

Oct 2024 - present

Stealth AI Startup · Kuala Lumpur, Malaysia

  • Researched, fine-tuned, and deployed multilingual ASR and TTS models for production Speech AI across APAC and MENA languages, improving quality against strong open-source baselines
  • Built an internal speech-model benchmarking platform for hosted and local models across WER, CER, MOS, RTF, throughput, and GPU utilization
  • Evaluated and integrated denoising, LID, VAD, and turn detection into LiveKit-based voice systems
  • Built an internal speech-model training platform spanning data versioning, training, resource allocation, evaluation, and benchmarking; co-developed an LLM-as-a-Judge pipeline for multi-ASR auto-labeling and human-in-the-loop routing

Algorithm Engineer

Feb 2024 - Jul 2024

TikTok · Jakarta, Indonesia

  • Harmonized search and retrieval systems across Tokopedia and TikTok Shop after the acquisition, adapting models to Indonesian marketplace data, taxonomy, and user behavior; developed a graph-embedding retrieval approach that improved search relevance and conversion
  • Migrated search use cases to TikTok's production ML platform, validating cross-platform data integrity and adapting workflows for automated training, embedding generation, vector-index updates, and retrieval indexing

Data Scientist

Sep 2021 - Jul 2024

Tokopedia · Jakarta, Indonesia

  • Led Query Understanding for search personalization, combining query semantics and behavioral signals to model intent, attributes, and browse-versus-buy behavior, improving relevance, conversion, and transaction value
  • Co-developed a multi-label deep-learning query classifier over the product-category taxonomy for pre-retrieval and coarse-to-fine ranking
  • Optimized query classification for production through model distillation and quantization, reducing latency while retaining baseline performance and integrating with existing inference platforms

Data Scientist

Nov 2020 - Sep 2021

Pashouses · Jakarta, Indonesia

  • Built and deployed an Automated Valuation Model for residential properties in Greater Jakarta, combining tabular and geospatial data with computer-vision-derived property-condition scores
  • Built computer-vision and data-processing workflows for property collection, including visual listing deduplication, OCR-based geolocation extraction, and automated ingestion and feature pipelines

Education

Bachelor of Science in Mathematics, Cum Laude

Aug 2016 - Sep 2020

Bandung Institute of Technology (ITB) · Bandung, Indonesia

  • Thesis: Computational Fluid Dynamics of Wave Propagation using Shallow Water Equations
  • Relevant coursework: Computational Mathematics, Mathematical Optimization, Mathematical Statistics, Probability Theory

Projects

Kept on the Repositories page, refreshed straight from GitHub.

Papers & Awards

Listed on the Papers & Awards page.

Academic interests

Bringing modern NLP to Indonesian & its local languages

  • LLMs underperform on low-resource languages due to scarce data
  • Many Indonesian local-language resources remain untapped by modern NLP
  • Contributing to projects (with talented collaborators across Indonesia) that address this gap

Expanding generic NLP toolkits

  • Widely-used NLP toolkits often lack Indonesian and local-language support
  • Aiming to help democratize tooling and knowledge across languages

Low-resource NLP research

  • Several Indonesian local languages are syntactically transferable from Indonesian without major semantic degradation
  • Dedicated to bridging NLP into low-resource languages via this approach
  • Aspiring to pursue a higher degree in an environment that enables driving this vision

Other interests