Dan Maas Email & Phone Number

The Cloud, Us

Technical leader on the Kubernetes Container Platform team, powering flexible cloud compute for Snowflake services.

San Mateo, California, Us

Our team builds the next generation of multi-cloud infrastructure to support evolution of the Roblox platform. My recent contributions include improving the reliability and efficiency of our software deployment systems, which serve ~1,000 back-end engineers and control multiple environments and datacenters.

San Mateo, California, Us

I worked on the Roblox Observability platform, which empowers Roblox engineers to understand health and efficiency across our distributed systems, and respond quickly and accurately to incidents. I co-led this team with our Director of Engineering, and participated in cross-team projects across our Infrastructure organization.Our Observability team is responsible for collecting billions of time-series metrics, log messages, and distributed traces from all parts of Roblox, and using that data to improve the reliability and cost efficiency of our services.Accomplishments at Roblox include:- Scaled up our systems to handle vast data volume. We're among the largest Observability sites in the industry.- Increased reliability of Observability services to speed up incident response and reduce outages.- Drove adoption of monitoring and alerting tools to "level up" productivity of engineering teams across Roblox.- Expanded coverage of our Observability suite to include data from a wide variety of technology stacks, from legacy Windows servers to modern containerized Linux workloads, covering globally-distributed compute clouds and on-premise datacenters.- Collaborated to solve problems with partner teams including datacenter capacity planning, cloud workload orchestration, traffic/networking, and more.

Created "BadukPop", a top-ranked mobile app powered by serverless GraphQL on AWS. Over 1,700,000 users around the world learn and play Go together on our cloud-based platform.- Built with a state-of-the-art software stack, including a React Native client, robust GraphQL protocol, and serverless back-end (AppSync/Lambda/Node.js/TypeScript/Postgres)- Uses deep neural networks (AI inference microservice) to drive lifelike opponents- Ranked Top 10 mobile board game and Top #1 Go game in key markets across East Asia

Independent consulting, focused on deployment of AI/ML services on AWS with Kubernetes, ECS/Fargate, Docker, and Terraform.

Markham, Ontario, Ca

Y Combinator-backed tech startup. Creator of AWS/WebSocket-based game engine now used by massively-multiplayer titles on Facebook and Battlehouse.com.Accomplishments at Battlehouse included:- Designed AWS infrastructure to support 10,000+ concurrent clients in a single game world with sub-second latency, and achieved 99.99% service uptime across hundreds of major feature deployments and platform updates- Managed a globally distributed team of developers & designers to launch 7 apps reaching over 4 million usersArchitect and lead developer of:• Full-stack game engine(using various technologies, primarily Python, JavaScript, MongoDB, PostgreSQL, Docker, Terraform, AWS, HAproxy, and CloudFlare)• Business intelligence analytics system and ETL pipeline (SQL and custom Map/Reduce engine)• OAuth-based Single-sign-on authentication system• Browser game client featuring StarCraft-style RTS combat (built on JavaScript/HTML5 Canvas)• 2D/3D graphics rendering pipeline (Maya/RenderMan/LISP)• A/B testing infrastructure• Customer support web apps for scalable, efficient ticket handling• Anti-fraud/anti-abuse and identity verification systems• Display advertising targeting and dynamic bid control system (Facebook Marketing API)• Deep Learning-based chat moderation system (TensorFlow)Public talks:"Massively Multiplayer Online Game Servers in Twisted Python", Swiss Python Summit 2017 https://www.youtube.com/watch?v=KW3mzaM3UcU"MMO Game Server Design with Twisted Python" (in Mandarin), PyCon APAC 2015 https://www.youtube.com/watch?v=_OtljArfvwU

Creator of visual effects animation for film and TV, and provider of 3D/video-related software consulting.• Recruited, led, and managed international teams of digital artists to create visual effects for numerous film and TV productions• Primary contributor to the Emmy-winning National Geographic documentary "Five Years on Mars" and the Walt Disney IMAX film "Roving Mars"• Developed "interp", a proprietary Linux-based scripting system for accelerating animator productivity over 4x through workflow automation and robust distributed processing. C++ core implementing a Scheme-like LISP language.• Developed and marketed “StarPro,” a software plugin for rendering realistic images of deep space. StarPro was used by special effects teams on the sci-fi TV series "Firefly" and "Battlestar Galactica."• Contributor to open-source software including the Linux kernel and ffmpeg video codec library• Enhanced the Linux kernel "dv1394" driver to handle dropout-free video streams using FireWire isochronous transmission mode• Implemented a DVCPRO HD high-definition video codec in ffmpeg that achieved real-time encoding performance on 2007-era CPUs. Adopted by the BBC for archiving broadcast TV content.

Producer of computer-animated films for Chinese-language and international markets.• Led redesign of CGI rendering pipeline for the 3D IMAX feature "Quantum Quest", reducing rendering costs by 40%• Authored Chinese-language design and quality-control curriculum to increase consistency and reduce error rates for over 150 digital artists.

Mba

Alumnus

Bachelor'S Degree, Physics, Computer Animation