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Senior Software Engineer - Javascript

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Senior Software Engineer - Javascript in USA

  • Freestar
  • Full time
  • Email
  • Remote

Responsibilities

  • Write and ship production JavaScript and TypeScript code daily, review pull requests, and collaborate with engineers on code quality.
  • Serve as the subject-matter expert for Prebid.js and Prebid Server, including wrapper architecture, bid adapters, identity, consent, floors, and analytics modules.
  • Own the header bidding wrapper end to end, including architecture, feature integration, release cycles, and key design decisions.
  • Track Prebid releases, OpenRTB changes, and header bidding standards and translate them into platform upgrades.
  • Work with Google Ad Manager, GPT, IMA SDK, line-item architecture, key-value targeting, unified auctions, and Unified Pricing Rules.
  • Measure and protect Core Web Vitals, memory usage, script execution time, and network overhead for client-side monetization scripts.
  • Own deployed solutions, address critical issues, and maintain system reliability 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, and dynamic allocation.
  • At least 4 years of JavaScript development experience with substantial TypeScript experience.
  • Experience with Google Cloud Platform for deploying and operating high-throughput services.
  • Broad ad tech fluency across 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 Prebid.js or Prebid Server open-source repositories are preferred.

Benefits

  • Remote role limited to candidates in the US.
  • 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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