• Built the end‑to‑end search, recommendation, and LLM feature stack from concept to production, enabling personalized matches for millions of job seekers and employers.

• Created ChatGPT "Resume Builder", a GPT app repeatedly featured by OpenAI and ranked among the platform’s highest‑rated GPTs.

• Designed a high‑throughput ingestion pipeline that indexes 5M+ U.S. job postings daily, giving Jobright one of the largest job‑supply feeds in the market.

• Recruited the first ~20 core engineers, mentored the team, and set engineering standards, project‑management practices, and cross‑team collaboration frameworks.

Recommendation Systems (Modeling & Strategy):

* Modernized local news recommendations, shifting from a BFM to a continuously trained deepFM model, achieving a 20% rise in page views within a year.

* Optimized UGC video recommendations with sequence features and multi-objective models, leading to a 15% uptick in watch time and engagement.

* Orchestrated the whole-page recommendation system in the core app for cohesive content delivery.

Recommendation Infrastructure & Efficiency:

* Managed the comprehensive recommendation system, from online serving to offline training and data platform.

* Migrated model serving from Python Flask to Finango, DJL, and TorchScript for enhanced performance. Leveraged Kubernetes for stability. Achieved a 20% AWS cost reduction in Q4 2022.

Engineering Leadership:

* As an uber tech lead, fostered collaborations to improve product. Spearheaded projects with push, newsletter, and local business units. Clinched 2nd place in the 2023 AI & LLM hackathon.

* Engineered the global API gateway that mediates secure, real‑time device‑to‑cloud traffic for 200 M + Google Home and Nest devices across 30 + regions.

* Built and operated a containerized serving stack—Kubernetes, Docker, and Envoy—deployed on both GCP and AWS, boosting cross‑region availability and cutting latency.

* Designed a unified data‑access layer that abstracts regional storage backends, enforcing GDPR and other data‑residency requirements while streamlining developer integrations.

Worked on S3 APIs and AWS storage services