Senior Software Engineer (Prebid & Header Bidding, JavaScript)

Quick Facts

• Role: Senior Software Engineer (Prebid & Header Bidding)

• Work style: Remote (US)

Description

You will be a hands-on senior engineer and subject-matter expert in Prebid.js and Prebid Server, developing client-side header bidding solutions used by large publisher sites. The role focuses on owning the header bidding wrapper end-to-end, staying current with Prebid.js/Prebid Server releases and OpenRTB changes, and translating them into platform upgrades. You will also ensure monetization scripts run efficiently and reliably while protecting Core Web Vitals.

Responsibilities

• Write and ship production code daily; review peer pull requests and collaborate to maintain code quality.

• Own the header bidding wrapper architecture, release cycle, and integration of new features.

• Serve as an expert on wrapper architecture, bid adapters, and modules (identity, consent, floors, analytics).

• Track Prebid.js/Prebid Server releases and OpenRTB specification updates; recommend upgrades.

• Work daily with Google Ad Manager, GPT, and the IMA SDK.

• Maintain high-quality, high-scale client-side scripts that monetize publisher sites.

• Measure and protect Core Web Vitals (INP, LCP, CLS), plus memory usage, script execution time, and network overhead.

• Take ownership of deployed solutions and address critical reliability/performance issues as they arise.

Requirements

• Deep hands-on expertise with Prebid.js (wrapper configuration, bid adapters, identity/consent/floors/analytics modules).

• In-depth knowledge of the ad auction lifecycle.

• Experience with Prebid Server (stored requests, server-side adapter configuration, s2s routing).

• Strong Google Ad Manager knowledge (GPT, line item architecture, key-value targeting, unified pricing rules, dynamic allocation).

• 4+ years JavaScript development with substantial TypeScript experience.

• Google Cloud Platform experience deploying and operating high-throughput services (e.g., GKE, Cloud Run, Pub/Sub, BigQuery).

• Strong asynchronous programming experience and understanding of client-server architecture.

• Strong problem-solving skills and ability to work in a distributed team.

• Excellent technical documentation and communication skills.

Benefits

• High autonomy on core projects with end-to-end ownership of monetization tooling.

• Work at massive scale with modern ad-tech standards and performance-focused engineering.

• Remote position reporting to the Engineering Manager.