Senior Software Engineer - Javascript- AD TECH EXPERIENCE REQUIRED (Remote- US only)

Role overview Build and maintain the client-side advertising systems that support publisher monetization at high traffic volumes. As a senior hands-on engineer and subject matter expert in header bidding, you’ll own the wrapper lifecycle, make architectural decisions, and help ensure advertising integrations perform reliably without harming the user experience of publisher sites.

Responsibilities - Ship production JavaScript and TypeScript, review peer changes, and support code quality across the engineering team. - Own the header bidding wrapper, including its architecture, release cycle, and integration of new capabilities. - Guide decisions involving bid adapters and modules for identity, consent, pricing floors, and analytics. - Track changes in bidding frameworks, advertising protocols, and ecosystem standards, then recommend platform updates. - Work with ad serving and video technologies to support auction setup and delivery. - Monitor deployed systems and protect site performance, including Core Web Vitals, memory use, execution time, and network overhead.

Requirements - Deep, hands-on experience with header bidding, including wrapper configuration, adapters, and modules. - Thorough understanding of the programmatic auction lifecycle and server-side bidding concepts. - Strong working knowledge of ad server tooling, auction configuration, and dynamic allocation. - At least four years of JavaScript development experience, including substantial TypeScript work. - Experience with cloud services for deploying or operating high-throughput systems. - Familiarity with asynchronous programming, client-server architecture, and integrations across the advertising ecosystem. - Strong problem-solving, documentation, and communication skills, with the ability to work independently on a distributed team.

Nice to have Contributions to open-source header bidding projects are welcome. Experience with consent standards, identity solutions, video advertising, or supply- and demand-side integrations is relevant.