# Torio Risianto

> Manager, Infrastructure Foundation Software @ Roblox

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/torio

I'm a tech professional with an overflowing passion for data, software engineering, UI, and web & mobile app development.

## Work Experience
### Principal Software Engineer @ Roblox
Jan 2022 – Present | San Mateo County, California, United States

### Sr. Frontend Engineer at Netflix @ Netflix
Jan 2021 – Jan 2022

### Sr. Data Analytics Engineer @ Netflix
Jan 2016 – Jan 2021 | Los Gatos
* Designed and developed a web application that easily rebalances AWS EC2 reservations across instance sizes and availability zones to maximize discount coverage of hundreds of thousands of instances. Developed node/express backend to interface with AWS EC2 Reservation API and to generate efficient inventory conversion plans that minimize inventory splits/ fragmentation. 
* Designed and developed an ETL pipeline to surface and analyze AWS' detailed billing report data, which is used for capacity planning and cost attributions.  
* Developed  a custom web application using react.js and d3 to explore cloud AWS usage, cost and reservations. 
* Designed and implemented ETL logic to calculate EC2 reservation shortages and identify top service growth. Developed email alerts to surface these shortages, as well as a UI to allow users manage alert configurations.
* Developed an ETL pipeline logic to simulate savings & recommend S3 Storage class lifecycle policies. Developed a tableau dashboard and weekly email reports to track S3 usage patterns for major S3 buckets & prefixes.
* Redesigned canary report visualizations on Spinnaker UI (Kayenta deck).
* Developed ETL pipeline, custom dashboard and email reports to engineering managers to track data cost trend in AWS (e.g. Hive tables, Cassandra, Kafka topics). Built an interactive graph to explore data lineage across data platforms.  
* Developed ETL pipeline, custom dashboard and email reports to engineering teams to track their microservice availability scores.
* Made minor contributions to Semiotic, an open source D3-based data visualization library.

### Sr. Analyst, Technology Planning & Analysis @ Netflix
Jan 2015 – Jan 2016
* Conducted  various cost analyses related to Cloud/ AWS, which includes EC2 instance migrations, pricing & contract changes,  micro-service architectural changes,  VPC migrations, and new AWS products
* Periodically planned and executed EC2 capacity procurements, as well as reservation modifications to maximize capacity utilizations  
* Planned capacity conversions and coordinated with AWS to ensure various service teams could smoothly migrate from classic network to VPC
* Conducted cost analysis and provided guidance for service teams to optimally leverage S3 SIA and Glacier storage classes
* Designed tableau visualizations to unveil cost, usage and reservations of AWS products
* Managed monthly cloud expense forecast and quarterly guidance

### Business System Analyst @ NVIDIA
Jan 2011 – Jan 2015
* Analyzed Supply Chain operations and gathered tool requirements from stakeholders in the Sales, Operations, Finance and Marketing-Ops  departments.
* Designed new business processes, data model & system solutions and created functional specifications for IT solution implementations.
* Tested tools/solutions and conducted business user training. 
* Supported existing SAP APO applications and assisted business stakeholders in operations-related data analysis and reconciliation.
* Managed SAP and custom web projects, which typically involved 2-5 project members.
* Designed and developed reports and visualizations for various levels of stakeholders.

### Lean Manufacturing Intern @ Hayco Manufacturing
Jan 2010 – Jan 2010
* Created a database & work instruction to implement packaging standardization in the SAP
* Participated in making site layout changes proposal and calculated improvement in travel time and cost

### Business Analyst Intern @ Bio-Rad Laboratories
Jan 2008 – Jan 2008
* Performed various data analysis and time study to determine the advantage of changing a warehouse's "goods-picking" operation method.
* Analyzed and designed a more efficient, productive and ergonomic cart for picking finished goods.
* Made suggestions in designing the layout of the new warehouse.
* Integrated and fixed various data analysis conducted by the consultants regarding the design of the new warehouse.

### Online Marketing Team Leader @ STI certified
Jan 2006 – Jan 2008
* Advertised electronic products online, post deals on shopping forums.
* Supervised 4-5 team members in promoting/posting products.

### Math and Physics Tutor @ Diablo Valley College
Jan 2005 – Jan 2007
*In group and one-on-one basis, assisted students in understanding math and physics concepts
*Tutored a class of high school students with their math homework during summer 2005


## Education
### M.Eng in Engineering Management
Cornell University

### B.S in Industrial Engineering and Operations Research
University of California, Berkeley


## Contact & Social
- LinkedIn: https://linkedin.com/in/torio-risianto
- GitHub: https://github.com/ShadyStego

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Source: https://flows.cv/torio
JSON Resume: https://flows.cv/torio/resume.json
Last updated: 2026-04-12