Open to opportunities

Lu Deng

@ludeng

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Engineering leader driving scalable backend platforms, ML integration, and on-call automation.

China

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What I'm looking for

I am looking for senior engineering roles where I can lead teams, design scalable backend and ML-enabled systems, improve reliability, and drive measurable business impact.

I am a seasoned software engineering manager and architect with broad experience designing and scaling large distributed systems for media, telecom, and cloud platforms. I have led multinational teams and delivered high-impact engineering programs, including subscription platforms supporting tens of millions of concurrent users and enterprise D2C platforms for 100M users.

My work blends architecture, performance engineering and machine learning: I implemented a GraphQL-based data distribution service, CQRS and event-driven patterns to reduce resource use, and ML-driven personalization pipelines that produced measurable revenue uplift. I also designed OncallExpert, an AI-driven on-call automation platform integrating LLM agents with PagerDuty, Confluence, and Slack.

I seek roles where I can lead cross-functional teams to solve large-scale reliability, performance and personalization challenges, mentor engineers, and drive architectural improvements that translate into business outcomes.

Experience

Work history, roles, and key accomplishments

Software Engineering Manager

The Walt Disney Company

Aug 2021 - Sep 2025 (4 years 1 month)

Led a multinational team of 10+ engineers for Disney+ Hotstar backend, implemented a GraphQL BFF data distribution service, and scaled subscription platform to support 59M concurrent viewers while reducing infrastructure (≈2k CPU cores) and delivering +1.5% revenue uplift from ML personalization.

System Architecture GraphQL CQRS Event Driven Architecture Scalability PagerDuty Microservices

Software Architect

Citic Cloud

Jun 2018 - Aug 2021 (3 years 2 months)

Designed Citic Group's D2C platform for 100M users sustaining 20k TPS at peak, built user management and coupon systems, and led construction of a data warehouse and real-time analytics for executive dashboards.

Architectural Design Data Warehousing OLAP HDFS Hive ETL High Throughput Systems

Lead Software Engineer

China Mobile Research Institute

Nov 2013 - Jun 2018 (4 years 7 months)

Led architecture and delivery of a multi-strategy recommendation system (ALS, user-label, hot-item), designed TB-level daily data pipelines and recall systems, and delivered a knowledge base for customer service with ontology-driven search.

Recommendation Systems ALS Big Data Pipelines MapReduce TB Scale Data Processing Project Management

Lead Software Engineer

Xueqiu.com

Aug 2011 - Oct 2013 (2 years 2 months)

Led a 3-engineer team to launch personalized features for an online investment social platform, optimized user segmentation with MinHash and computed user similarity (Jaccard) via MapReduce, and mentored anti-spam system development.

Personalization MinHash Jaccard Similarity MapReduce Naïve Bayes Data Crawling Distributed Systems

Senior Software Engineer

360

May 2009 - Jul 2011 (2 years 2 months)

Developed a Game Assistant browser extension serving millions, implementing BHO, IPC, and multithreaded programming; contributed to 360 Game Browser with user information management and synchronization modules.

C IPC)Multithreading Browser Extension User Data Sync Performance Optimization

Research Software Engineer

Intelligence Engineering Lab, Chinese Academy of Sciences

Nov 2006 - Mar 2009 (2 years 4 months)

Led development of a pen-based SDK and ink document schemes using ANSI C and OOP techniques, and designed ink-based educational software architectures leveraging the SDK.

ANSI C SDK Development OOP Data Structures System Design