• Founding TL of Roblox's Recommendation Service team, building a recommendation-as-a-service that powers the personalized AI/ML recommendation for Roblox Moments (short form video product) and for millions of Roblox games.

• Founding TL of Roblox Ads: leading teams building full Ads systems at Roblox from scratch, including ads creation/delivery, modeling/ranking/bidding/pacing/budgeting, tracking/reporting/billing

• Founding TLM of Ads ML Infra team, building cutting-edge infra for large scale Ads retrieval, model training, inference, and ranking

• Indeed Ads Backend - TL, Ads bidding optimization, real time bidding, pacing algorithm, ads delivery

• Internal platforms - TL, CRM tooling and data pipeline for Sales/Finance/CS

• CRM platforms - TL, enabling large-scale backend data pipelines for CRM business use cases

• TLM of the Indeed Internal Platform CRM Service team

• Delivered company-level projects uplifting revenue system efficiency and robustness

• Technical Lead for platform development and external partner solution integrations

• Designed and implemented integration solutions that resulted in company press release and demonstrations at major trade shows

• Cloud backend system R&D using modern enterprise software architecture and frameworks, such as micro-services, SOA, Spring MVC, Node.js, and AngularJS.

• DevOp Lead responsible for establishment and maintenance of internal product development and testing process

• Full stack developer for various software products, including cloud based network selection solution and wireless network management cloud system

• Production experience and skills on backend enterprise software engineering, including Java, HTML/CSS, SQL, Javascript/jQuery, JSP/JSTL, Spring MVC, Hibernate, Ajex, Bootstrap, XML, JSON, Node.js, AgularJS, etc.

• Managed off-shore developers: continuously defining tasks, tracking processes using scrum, reviewing results, and integrate the deliveries with existing products

• Architecture and system design of Next Generation Wired/Wireless Networks

• Designed and prototyped network systems with state-of-the-art SDN components and toolkits, e.g. OpenvSwitch, Floodlight, OpenDaylight, Mininet, OpenFlow HW switches, etc.

• Introduced SDN to wireless world by publishing an article on IEEE Wireless Communications Magazine, "An Architecture for Software Defined Wireless Networking", which later becomes a featured article of the magazine