Senior Software Engineer – Javascript

🕒 August 5

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Logo of Freestar

Freestar

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

• Write and ship production code daily, review peer pull requests, and partner with engineers to maintain code quality. • Serve as a subject-matter expert for Prebid.js and Prebid Server, including wrapper architecture, bid adapters, identity, consent, floors, and analytics modules. • Monitor Prebid releases, OpenRTB specification changes, and emerging header bidding standards, translating 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 running on thousands of publisher sites. • Measure and protect Core Web Vitals, memory usage, script execution time, and network overhead. • Own deployed solutions, maintain reliability, and address critical issues to preserve 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 auction lifecycle. • Experience with Prebid Server, including stored requests, server-side adapter configuration, and s2s routing. • Strong working knowledge of Google Ad Manager, GPT, line item architecture, key-value targeting, unified pricing rules, and dynamic allocation. • 4+ years of JavaScript development experience with substantial TypeScript experience. • Experience with Google Cloud Platform, including GKE, Cloud Run, Pub/Sub, and BigQuery, for deploying and operating high-throughput services. • Broad ad tech fluency, including OpenRTB, SSP/DSP integrations, identity solutions and EIDs, TCF/GPP consent frameworks, Amazon TAM/APS, and video technologies such as IMA SDK/VAST. • Strong experience with asynchronous programming and 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 merit. • Contributions to Prebid.js or Prebid Server open-source repositories are a plus. • Must be located in the United States; the role is not eligible for visa sponsorship.

🏖️ Benefits

• Flexible vacation policy • Full-Time, Salaried Position • The opportunity to be part of something BIG

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