Senior Software Engineer – Javascript

🔥 0 minutes ago

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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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 engineers to ensure codebase quality • Serve as a subject matter expert for Prebid.js and Prebid Server • Advise on wrapper architecture, bid adapters, identity, consent, floors, analytics, and related modules • Track Prebid releases, OpenRTB specification changes, and emerging header-bidding standards • Translate ecosystem developments 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 • Maintain high-quality JavaScript and TypeScript client-side scripts running across thousands of publisher sites • Measure and protect Core Web Vitals, including INP, LCP, and CLS, as well as memory usage, 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

🎯 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, including GKE, Cloud Run, Pub/Sub, and 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 merit • No visa sponsorship available