NOAH
EISEN

Bringing the best models and products to democratic governments around the world.

Roblox is an online platform for games and immersive social experiences that connects players and creators globally. Some key achievements:

• Served as Holiday Readiness DRI for all 10 Social Pods and engineered a graceful degradation system now adopted across 15 services; increased system capacity by 10% for peak traffic events.
• Led bi-weekly architecture design reviews for 3 pods to ensure engineering decisions were long-view aligned.

Faire is an online wholesale marketplace that connects retailers and brands globally, empowering small businesses to compete with major retailers such as Amazon and Walmart. In a dynamic startup environment, my role has evolved significantly, with key achievements including:

• Authored technical vision document for Faire's payment systems. Initiated and drove critical projects, such as extracting a payment service and developing a SQL-based invariant validation system. These systems eliminated payment-related SEVs.
• Served as Senior Engineering Manager and tech lead for the Shipping team, overseeing 8–12 engineers. Developed a long-term technical strategy to optimize shipping costs and improve system stability. Delivered +0.25pp to contribution margin on $2B GMV.
• Led 5 person tiger team to build Volume Pricing (akin to airline loyalty programs) from design to launch in under two months.
• Drove org-wide cultural transformations across 300+ engineers by leading several cross-functional High-Performance Culture working groups, raising engineering standards and execution velocity.

Waymo is an Alphabet company focusing on the development of self-driving technology. I worked on the Fleet Infrastructure team where I was the tech lead for the OpsApp, an internal Android app that is used by 1000+ safety drivers daily. Some highlights include:

• Tech lead of 7 person team, including 3 engineers, a product manager, a product operations specialist, a technical program manager, and a UX designer.
• Received early promotion to Senior Software Engineer within first year of joining.
• Optimized data path from the self-driving car to the phone to achieve sub-300ms latency in support of streaming real-time telemetries to the safety driver.
• Co-authored this patent based on my work designing and building the tool suite that enabled roadside assistance team to navigate to a self-driving car on public roads within minutes of an incident.

gRPC is Google's next-gen RPC system, built from the ground up in open source. gRPC is a highly performant system built around a simple yet powerful wire protocol. The library provides idiomatic APIs in nine supported languages. Through 250+ pull requests, and even more internal changes, I have contributed mainly to gRPC's C core. I have also made significant contributions to the C++ and Python wrapped layers. Some highlights include:

• Created the team's internal benchmarking framework, automatic regression detection system, and performance dashboards.
• Migrated TensorFlow's distributed runtime to use gRPC internally at Google.
• Implemented connection-level monitoring feature for the C++ stack, which exports critical debugging data of live services and presents them in a simple HTML page.
• Co-authored RFC for gRPC client retries in 2017. It is now implemented across all language stacks.
• Created and delivered 40 minute tech talk on gRPC performance at KubeCon.