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Senior Software Engineer - Javascript

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Senior Software Engineer - Javascript in USA new

  • Freestar
  • Full time
  • Email
  • Remote

Responsibilities

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

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, GPT, line item architecture, key-value targeting, unified pricing rules, dynamic allocation, and related capabilities.
  • At least 4 years of JavaScript development experience with substantial TypeScript experience.
  • Experience deploying and operating high-throughput services on Google Cloud Platform, including relevant GCP services.
  • Broad ad tech fluency spanning OpenRTB, SSP/DSP integrations, identity solutions and EIDs, TCF/GPP consent frameworks, Amazon TAM/APS, IMA SDK, and VAST.
  • Strong asynchronous programming and client-server architecture knowledge.
  • Strong problem-solving, technical documentation, communication, and distributed-team collaboration skills.
  • Preferred: contributions to Prebid.js or Prebid Server open-source repositories.

Benefits

  • Remote position available to candidates in the United States only.
  • The role is not eligible for visa sponsorship.

Freestar

Freestar engineers cutting-edge monetization solutions for websites and apps. By combining industry-leading technology, data, and massive scale, we enable busy site and app owners to seamlessly maximize revenue while freeing themselves of the hassles of ad operations. Publishers, e-commerce sites...

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