About the job
Dev. Pro builds projects that reach millions worldwide. The team values diversity, inclusion, and a supportive workplace where people drive progress.
Role Overview
Dev. Pro is hiring a Senior JavaScript / Prebid Engineer to help develop an advanced advertising platform. This system uses a lightweight JavaScript and React widget to display dynamic local classified listings on publisher websites. The platform relies on a custom header bidding setup built with Prebid.js and runs entirely on Amazon Web Services.
This role focuses on improving and scaling the bidding infrastructure and on-page rendering engine. Candidates should bring significant experience in AdTech or high-performance frontend systems.
What You Will Do
- Design and optimize a custom Prebid.js-based header bidding stack
- Develop and maintain high-performance JavaScript integrations for publisher sites
- Improve latency, auction effectiveness, and yield optimization for ad units
- Create and enhance React widgets for dynamic local listings
- Work on bidder integrations, adapters, and partnerships with demand partners
- Troubleshoot complex issues across browsers and with third-party scripts
Technical Skills
- Strong JavaScript (ES6+) skills; TypeScript experience preferred
- Experience with React for widget rendering
- Familiarity with Prebid.js and header bidding
- Knowledge of AWS services such as Lambda, CloudFront, and S3
- Understanding of real-time data flows and event-driven architectures
Who Will Succeed
- 5+ years working as a JavaScript engineer
- Deep understanding of browser performance, async loading, and script execution
- Background in AdTech (Prebid, GAM, DSPs, SSPs) or other high-scale JS and real-time systems
- Comfortable with header bidding concepts: auctions, bid requests, and latency trade-offs
- Skilled at debugging third-party script conflicts and optimizing page performance
- Adaptable in a product-focused setting
Location: Remote , Bogotá, Bogota, Colombia
