Making the worldmake sense.

• AbearAI Product EngineerMay 2025 – Present1 yr 3 mos

  Running the Pervis marketing-AI business and shipping features on Windly.

  Pervis

  • Drove the work from opportunity discovery through to a shipped product
  • Designed and built the AI agent itself as a finite state machine
  • Built auth, the ad platform API integrations, and the performance-data analytics
  • Built the harness engineering system behind AI-driven development
  • Stood up the observability stack — Sentry, Axiom, Langfuse — to trace what the agent does at runtime

  Windly

  • Built Winby, the in-product guidance chatbot
  • Built v2 of the background removal service (BiRefNet-based model)
• AndreiaBackend & ML Engineer, TPMMay 2023 – Sep 20235 mos

  Led the product engineering team for Ssokdak-Ssokdak, a digital therapeutic that treats early-stage depression through emotion journaling.

  May–Aug 2023 part-time · Aug–Sep 2023 full-time

  • Led the product engineering team and ran project management
  • Built server features for emotion journaling, onboarding, and notifications
  • Extracted emotional signals from journal entries with an LLM
  • Built the recommender that composes demographics, those signals, and the extracted keywords into factors, and matches a user with someone to talk to
  • Designed the service architecture and set up the infrastructure
• AbearBackend Engineer, InternJan 2023 – Aug 20238 mos

  Shipped features inside Windly, a B2B SaaS platform for e-commerce sellers.

  Jan–Feb 2023 full-time · Mar–Aug 2023 part-time

  • Built v1 of the product category recommender (FastText classifier)
  • Built high-quality background removal (SAM segmentation, ONNX for a lighter model)
  • Built the partner settlement back office
  • Ran the PoC for a payment gateway migration and shipped it
  • Split and tuned databases by data and transaction type
  • Set up backend and frontend CI/CD for the dev environment
  • Introduced product monitoring on Datadog
• TULONCo-founder, Full-stack EngineerJan 2022 – Sep 20229 mos

  Co-founded TULON, a secure data access platform for machine learning researchers, and owned the backend design and the engineering behind it.

  • Designed a domain-driven architecture and moved the system to microservices
  • Built the back office for data access policy and approvals
  • Built the request-and-approval workflow, the policy management, and the audit log
  • Built the isolated training environment and its data egress controls
  • Built the monitoring system covering both the main service and the isolated training environment

Other projects

• Automating LLM translation cleanup for product dataLLMAbear · Apr 2024 – Jun 2024Contract
• Category recommender v2LLMAbear · Apr 2024 – Jun 2024Contract
• Multimodal emotion analysisMLTebahSoft · Mar 2023 – Jul 2023Contract
• Client session summary and speaker diarizationMLTebahSoft · Mar 2023 – Jul 2023Contract
• SabeujakBackend삶의질연구소 · Feb 2023 – Apr 2023Contract
• Korean STT punctuation restoration researchResearchTebahSoft · Sep 2022 – Dec 2022Contract