# Dan Weaver

> Software Engineer at Yahoo!

Location: Washington, District of Columbia, United States
Profile: https://flows.cv/danweaver

## Work Experience
### Senior Principal Software Engineer @ Yahoo
Jan 2023 – Present
Architecting GraphQL infrastructure for ML-powered personalization and integrating it with frontend surfaces across Yahoo News. Spearheading the migration of Yahoo's SEO-optimized topical pages from on-prem to cloud. Built services powering homepage content recommendations.

Technologies: TypeScript, Python, GraphQL, AppSync, DynamoDB, AWS, Svelte

### Software Development Engineer II @ Amazon Web Services (AWS)
Jan 2022 – Jan 2023 | Washington, District of Columbia, United States
Worked on distributed throttling infrastructure at massive scale. Automated provisioning systems, diagnosed and fixed critical distributed systems bugs, and owned operational excellence for key services. Built load testing infrastructure and diagnostic tools that improved support efficiency.

Technologies: Java, Python, Ruby, AWS, CDK/CloudFormation, Distributed Systems

Integrations: Lambda, DynamoDB, SQS, SNS, Kinesis, VPC/PrivateLink, HTTP endpoints

Auth: IAM, Cognito, Lambda Authorizers, JWT/OAuth 2.0

### Technical Architect @ The Washington Post
Jan 2019 – Jan 2022 | Washington D.C. Metro Area
Built real-time multiplayer collaboration tools for the newsroom supporting 100+ concurrent editors. Designed high-scale content delivery infrastructure with event-driven cache invalidation, serving 20M+ daily users at peak. Worked closely with editorial teams on content curation tools.

Technologies: TypeScript, Python, React, Node.js, WebSockets, Redis, Kafka, Next.js, Akamai CDN

### Senior Software Engineer @ The Washington Post
Jan 2018 – Jan 2019 | Washington D.C. Metro Area
Contributed to real-time collaboration systems and high-scale content delivery. Helped establish frontend patterns adopted across engineering teams.

Technologies: TypeScript, Python, React, Node.js, WebSockets

### Software Engineer @ Freelance
Jan 2017 – Jan 2018 | Washington D.C. Metro Area
Working with various clients on exciting projects.  ReactJS / Node / GraphQL

### Software Developer @ ICX Media, Inc.
Jan 2016 – Jan 2017 | Washington D.C. Metro Area

### Software Engineer @ Crowdkeep
Jan 2015 – Jan 2016 | Washington D.C. Metro Area
Developed and supported a location aware time tracking application using node, React and Django.

### Web Application Developer @ Automata Studios
Jan 2013 – Jan 2015
Full stack web application developer
Architect front end applications (Angular, React, jQuery etc.) 
Design and implement RESTful API's (Django, NodeJS)
Implement visual designs from wireframes using CSS3
Participate in agile development process

### Web Application Developer @ U.S. Geological Survey (USGS)
Jan 2012 – Jan 2013 | Washington D.C. Metro Area
Contributed to numerous front end web mapping applications written in a combination of OpenLayers, YUI3 and others.

Wrote and maintained various geoprocessing scripts and tools.


## Education
### B.S. in Geography-GIS
University of Maryland
Jan 2006 – Jan 2010


## Contact & Social
- LinkedIn: https://linkedin.com/in/dan-weaver-b7552819

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Source: https://flows.cv/danweaver
JSON Resume: https://flows.cv/danweaver/resume.json
Last updated: 2026-03-22