Senior Software Engineer - Javascript

Responsibilities

• Write and ship production JavaScript and TypeScript code daily, review pull requests, and partner with engineers on code quality.
• Serve as the subject-matter expert for Prebid.js and Prebid Server, including wrapper configuration, bid adapters, identity, consent, floors, and analytics modules.
• Own the header bidding wrapper architecture and release cycle, evaluate and integrate features, and make key design decisions.
• Track Prebid releases, OpenRTB changes, and header bidding standards and translate them into platform upgrades.
• Work with Google Ad Manager, GPT, and the IMA SDK, including line item architecture, key-value targeting, unified auction dynamics, and Unified Pricing Rules.
• Maintain client-side monetization scripts running across publisher websites at scale.
• Measure and protect Core Web Vitals, memory usage, script execution time, network overhead, and on-page performance.
• Own deployed solutions, address critical issues, and help maintain system stability and reliability.

Requirements

• Deep hands-on expertise with Prebid.js, including wrapper configuration, bid adapters, and identity, consent, floors, and analytics modules.
• In-depth knowledge of the ad auction lifecycle and experience with Prebid Server, stored requests, server-side adapter configuration, and server-to-server routing.
• Strong working knowledge of Google Ad Manager, including GPT, line item architecture, key-value targeting, unified pricing rules, dynamic allocation, and related capabilities.
• At least 4 years of JavaScript development experience and substantial TypeScript experience.
• Experience deploying and operating high-throughput services on Google Cloud Platform, including familiarity with GKE, Cloud Run, Pub/Sub, and BigQuery.
• Broad ad tech fluency covering OpenRTB, SSP/DSP integrations, identity solutions and EIDs, TCF/GPP consent frameworks, Amazon TAM/APS, and video technologies including IMA SDK and VAST.
• Strong experience with asynchronous programming and client-server architecture.
• Strong problem-solving, technical documentation, communication, creativity, and distributed-team collaboration skills.
• Contributions to the Prebid.js or Prebid Server open-source repositories are preferred.
• Ad tech experience is required; the role is not eligible for visa sponsorship.

Benefits

• Remote position limited to candidates in the United States.
• Equal Opportunity Employer.
• Visa sponsorship is not available.