Andrew Walker
@andrewwalker
Senior software engineer building accessible, high-scale React dashboards and ad-tech systems.
CanadaWhat I'm looking for
I’m a Senior Software Engineer spearheading frontend development for Unity LevelPlay’s ad mediation dashboard, using React + TypeScript to help developers configure real-time auctions, ad placements, and analytics inside Unity’s ecosystem.
I’ve shipped developer-facing UI that scales to 1.6 billion+ monthly active users, integrated Google Ads and DV360 bidding via Node.js middleware, and built live revenue graphs that handle millions of streamed auction datapoints with client-side caching.
I’m meticulous about quality and reliability: I maintain WCAG 2.1 compliance across 200+ screens, drive testing with Cypress and Jest (92% frontend coverage), and deploy on AWS with CI pipelines to reach 99.98% dashboard uptime.
Earlier, I helped rebuild Index Exchange’s publisher-facing dashboard with Angular and TypeScript at massive scale, delivered faster workflows (42% improvement), and built BFF Node.js services for sub-second reporting views. I also contributed to Amazon QuickSight, optimizing interactive visualization performance and partnering on security and GDPR readiness.
Experience
Work history, roles, and key accomplishments
Spearheaded frontend development for Unity LevelPlay’s ad mediation dashboard, enabling real-time auctions, ad placement, and analytics for developer teams. Integrated Google Ads and DV360 via Node.js middleware and shipped live revenue graphs, contributing to a 17% year-over-year increase in ad revenue opportunities and 99.98% dashboard uptime.
Rebuilt Index Exchange’s publisher-facing dashboard with Angular and TypeScript, enabling configuration of ad inventory across display, video, and mobile at 500B+ daily ad requests. Improved publisher UI task time by 42% and built Node.js BFF services delivering sub-second reporting views using Apache Druid and BigQuery.
Developed customer-facing components of Amazon QuickSight, enabling drag-and-drop data visualizations and interactive chart rendering with React and D3.js. Reduced dashboard load time by 53% through query batching, asynchronous streaming, and React virtual list techniques while integrating Node.js services with Amazon Redshift and RDS via IAM-based credential routing.
Education
Degrees, certifications, and relevant coursework
McGill University
Bachelor's degree in Computer Science, Computer Science
2011 - 2015
Earned a Bachelor's degree in Computer Science at McGill University from 2011 to 2015.
Availability
Location
CanadaAuthorized to work in
Job categories
Skills
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