Cheng-Hsiu (Jash) Lee

Engineering Leader with 20+ years of experience building, scaling, and optimizing global platforms for top tech companies. Expert in architecting resilient large scale distributed systems and leading and mentoring high-performing teams across the US and APAC. Proven track record of people management, cross-functional leadership, and leveraging LLMs, agentic workflows, and automation to deliver 10x productivity, multi-million dollar cost savings, and industry-leading reliability. Passionate about empowering organizations to innovate at scale, accelerate AI adoption, and develop future leaders.

• Big Data/AI/ML Large Scale Infrastructure & Platform Engineering
• Site Reliability Engineering (SRE)
• Cloud Architecture (AWS, Azure)
• Generative AI & LLM Integration
• Global Team Leadership & Mentoring
• DevOps & CI/CD Automation
• Big Data/AI/ML Systems & Observability
• Cost Optimization & Scalability
• Incident Response & Disaster Recovery
• Open Source Contributions

• Reduced cloud infrastructure costs by $3M+/year at Microsoft through automation and hybrid cloud strategy.
• Architected Big Data/AI/ML platforms with 300TB+ daily data at global scale.
• Launched AI-powered apps featured on Amazon and Google Play, driving user engagement and business growth.
• Built and led global teams (US, Europe, APAC) delivering 24/7/365 reliability and rapid innovation.
• Implemented LLM/agentic workflows to achieve 10x engineering velocity and accelerate AI adoption.

• Produced high-impact thumbnails using Stable Diffusion and inpainting for enhanced engagement.
• Scripted and refined video content with LLMs (ChatGPT, Ollama) for audience retention.
• Automated video segment creation with text-to-video (txt2video) tools.

• Accelerated development cycles using LLMs for code generation, debugging, and review.
• Created rapid prototypes and UI mockups with generative models.
• Fine-tuned AI models using Extract and Train for project-specific needs.

• Generated unique visuals and memes with img2img/txt2img for digital campaigns.
• Applied ControlNet for advanced image manipulation and creative workflows.

Microsoft (AI - Copilot)Member of Technical Staff, Mar 2025 - Present

• Optimizing data platforms and AI/ML infrastructure to enhance Copilot and Applied/Gen AI experiences.
• Leveraged LLMs, AI agents, and agentic workflows to drive 10x engineering efficiency.

Scientific Gambling AppFounder, Dec 2024 - Present

• Launched AI-powered decision-making app; published on Amazon Appstore and Google Play Store.
• Architected cross-platform mobile solution using React Native and ML backend.
• Led product strategy, development, and go-to-market execution.
• Amazon Appstore: https://www.amazon.com/gp/product/B0DRM5W3SB
• Google Play Store: https://play.google.com/store/apps/details?id=com.s905060.ScientificGambling

Microsoft (AI)Principal Software Engineering Manager, Jan 2023 - Mar 2025

• Directed global teams to deliver 24/7 Big Data infrastructures for internal partners.
• Architected big data systems (300TB+/day), achieving 99.99% uptime and 40% performance gains.
• Reduced operational overhead by 60% and infrastructure costs by $2M+ via automation.

Microsoft (Advertising)Sr. Manager, Technology, Jun 2022 - Jan 2023

• Led hybrid cloud migration, reducing costs by 45% and tripling scalability.
• Managed distributed engineering teams to ensure 24/7 service delivery.

XandrSr. Manager, Technical Operations (Big Data), Dec 2021 - Jun 2022

• Scaled big data infrastructure to 1M+ QPS with 99.95% uptime.
• Reduced data pipeline latency by 70% and storage costs by $1M+.

XandrManager, Technical Operations (Big Data), Apr 2019 - Dec 2021

• Built and led a high-performing team, achieving 100% project delivery.
• Implemented monitoring and alerting, reducing MTTR by 80%.
• Established CI/CD pipelines, cutting deployment time from 4 hours to 15 minutes.

AppNexusSenior Systems Engineer (Big Data), Dec 2015 - Apr 2019

• Led initiatives for a data platform handling 50B+ daily requests with sub-10ms latency.
• Designed auto-scaling infrastructure, reducing manual ops by 90%.
• Mentored junior engineers and improved system reliability to 99.9%.

New York UniversityTechnical Consultant (Part-Time), Jun 2015 - Dec 2015

• Researched unikernel solutions and resolved private cloud challenges.
• Streamlined IT operations for academic environments.

NielsenSite Reliability Engineer, Apr 2015 - Dec 2015

• Automated deployments, reducing manual effort by 95%.
• Integrated LVS load balancing, saving $500K+ annually.
• Migrated Python services to Go, improving performance by 60%.

eXelateSite Reliability Engineer, Jan 2015 - Apr 2015

• Diagnosed and resolved infrastructure issues across 7 data centers.
• Developed automation tools and integrated Twilio API for alerts.

New York UniversityTechnical Lab Manager, Aug 2014 - Jan 2015

• Led a cross-functional team to deliver private cloud and high-availability solutions.
• Managed departmental data center and IT operations.

New York UniversityDeveloper, Feb 2013 - Aug 2014

• Engineered and maintained virtual lab infrastructure for research and education.
• Developed automation scripts and managed server/network operations.
• Collaborated on redesign and training for NSF-funded Vlab platform.

China Engineering & Mercantile Co., Ltd.

Senior MIS Engineer (Sept 2002 - Aug 2012)

• Developed and maintained web-based customer feedback and quotation systems (ASP.NET, Python).
• Redesigned and implemented company website (PHP5 + jQuery, HTML5, LAMP stack).
• Administered Linux, Windows, and Mac OS X servers and managed virtualization platforms.
• Oversaw network infrastructure and ensured high availability and security.
• Provided comprehensive IT support and led internal automation initiatives.

The Republic of China Army (Taiwan)Second Lieutenant, Aug 2010 - Jul 2011

• Directed daily operations and training as Deputy Company Commander.
• Led and managed two platoons, ensuring operational readiness and discipline.

• Electronic music composer and DJ; passionate about classical music.
• Zone 2 training practitioner.
• Cat owner.