Senior Software Engineer - Javascript in Abbeyville, Colorado at Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer - Javascript based in the United States.

This role offers the opportunity to build high-performance JavaScript solutions that power large-scale digital monetization systems.
You will work on complex engineering challenges within the programmatic advertising ecosystem, helping optimize revenue opportunities for major publishers.
As a senior technical contributor, you will influence architecture decisions, improve platform reliability, and deliver production-level code at scale.
The position requires deep expertise in client-side development, auction technologies, and modern ad infrastructure.
You will collaborate with experienced engineers while operating with a high degree of autonomy and ownership.
This is an ideal opportunity for a problem solver passionate about JavaScript, TypeScript, performance optimization, and innovative technology solutions.

The Senior Software Engineer will serve as a technical expert responsible for designing, developing, and maintaining scalable monetization solutions. This role combines hands-on engineering, technical leadership, and ownership of critical systems that support high-volume digital experiences.

• Design, develop, test, and deploy high-quality production code using JavaScript and TypeScript.
• Act as a subject matter expert on Prebid.js, Prebid Server, and the broader header bidding ecosystem.
• Own the architecture, evolution, and release processes of header bidding solutions, making key technical decisions.
• Maintain and improve client-side scripts running across thousands of publisher websites while ensuring reliability and scalability.
• Optimize application performance by monitoring Core Web Vitals, memory usage, execution time, and network efficiency.
• Evaluate emerging standards, technology updates, and ecosystem changes to recommend platform improvements.
• Work extensively with advertising technologies, including Google Ad Manager, GPT, IMA SDK, and programmatic auction systems.
• Collaborate with engineering teams through code reviews, technical discussions, and shared best practices.
• Troubleshoot production issues, improve system stability, and ensure deployed solutions continue delivering strong performance.
• Contribute technical documentation and communicate complex concepts clearly across teams.

The ideal candidate is an experienced software engineer with strong JavaScript expertise and a deep understanding of digital advertising technologies. They should be comfortable solving complex technical challenges, working independently, and contributing within a distributed engineering environment.

• 4+ years of professional experience developing applications with JavaScript, including significant TypeScript experience.
• Strong hands-on experience with Prebid.js, including wrapper configuration, bid adapters, modules, identity solutions, consent, floors, and analytics.
• Deep understanding of programmatic advertising workflows and the complete auction lifecycle.
• Experience with Prebid Server, including stored requests, server-side adapter configuration, and server-to-server routing.
• Strong knowledge of Google Ad Manager, including GPT, line item architecture, key-value targeting, unified pricing rules, and dynamic allocation.
• Experience with Google Cloud Platform services such as GKE, Cloud Run, Pub/Sub, and BigQuery for high-throughput applications.
• Broad understanding of ad technology concepts, including OpenRTB, SSP/DSP integrations, identity frameworks, consent frameworks, Amazon TAM/APS, and video advertising technologies.
• Strong understanding of asynchronous programming and client-server architecture.
• Excellent problem-solving skills with the ability to work effectively in a remote and distributed environment.
• Strong communication skills with the ability to document technical solutions and collaborate with engineering teams.
• Ability to take ownership, make independent decisions, and contribute creative technical ideas.
• Experience contributing to Prebid.js or Prebid Server open-source projects is a plus.

• Full-time salaried position.
• Fully remote opportunity available within the United States.
• Flexible vacation policy to support work-life balance.
• Opportunity to contribute to large-scale technology solutions impacting global digital platforms.
• Collaborative environment focused on innovation, ownership, and technical excellence.
• Competitive compensation package based on experience and qualifications.