Senior Software Engineer – Javascript, Ad Tech Experience Required

🔥 4 minutes ago

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

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Freestar

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2018

📣 Marketing

💼 Consulting

📦 Logistics

💰 Private Equity Round on 2021-01

Marketing • Consulting • Logistics

Freestar is a company that delivers comprehensive ad monetization solutions tailored for publishers, retailers, and app developers. Specializing in programmatic ad strategies, Freestar emphasizes long-term business growth and revenue optimization through their proprietary technology and expert team. Their offerings include advanced header bidding, customized ad serving solutions, and insightful data analytics for real-time performance monitoring. By focusing on increasing ad revenue and providing high-impact ad units, Freestar helps clients innovate and navigate the complexities of the ad tech landscape. With a commitment to customer success, they provide a range of additional services like SEO consultations and audience development support, ensuring clients can focus on their primary business goals while Freestar optimizes their ad operations.

📋 Description

• Serve as a senior hands-on developer, writing and shipping production code daily • Review peers' pull requests and partner with other engineers to ensure codebase quality • Serve as a subject matter expert for Prebid.js and Prebid Server, including wrapper architecture, bid adapters, and identity, consent, floors, and analytics modules • Monitor Prebid.js and Prebid Server releases, OpenRTB specification changes, and emerging header bidding standards; translate them into platform recommendations and upgrades • Own the header bidding wrapper end to end, including architecture, release cycle, feature integration, and design decisions • 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 high-quality JavaScript and TypeScript client-side scripts operating on thousands of publisher sites • Measure and protect Core Web Vitals, including INP, LCP, and CLS, plus memory usage, script execution time, and network overhead • Own deployed solutions, maintain reliability, and address critical issues to preserve system stability and performance • Report directly to the Engineering Manager and contribute autonomously to core projects

🎯 Requirements

• Deep, hands-on expertise with Prebid.js — wrapper configuration, bid adapters, modules (identity, consent, floors, analytics) • In depth knowledge of the auction lifecycle • Experience with Prebid Server — stored requests, server-side adapter configuration, s2s routing, and more • Strong working knowledge of Google Ad Manager, including GPT, line item architecture, key-value targeting, unified pricing rules, dynamic allocation, and more • 4+ years of experience in JavaScript development, with substantial TypeScript experience • Experience with Google Cloud Platform (e.g., GKE, Cloud Run, Pub/Sub, BigQuery) for deploying and operating high-throughput services • Broad ad tech fluency: OpenRTB, SSP/DSP integrations, identity solutions and EIDs, consent frameworks (TCF/GPP), Amazon TAM/APS, video (IMA SDK/VAST) • Strong experience with asynchronous programming and understanding of client-server architecture • Strong problem-solving skills and ability to work in a distributed team environment • Excellent technical documentation and communication skills • Ability to be creative and contribute based on your merit • Contributions to Prebid.js or Prebid Server open-source repositories would be advantageous • This role is not eligible for visa sponsorship