Senior Backend Engineer( AdTech)

Role overview Develop and operate a high-throughput edge proxy within a video advertising delivery system. The gateway processes VAST responses, applies changes that help protect against malicious ad behavior, and combines documents for video players; reliability, low latency, and availability are central to the work.

Responsibilities - Build and maintain backend services for high-volume advertising traffic. - Process and modify VAST responses, including protection logic for VPAID creatives. - Combine multiple VAST documents into a single response for video players. - Support production systems through debugging, monitoring, hotfixes, and zero-downtime deployments. - Improve scalability, availability, and operational stability while independently owning services.

Requirements - At least five years of commercial backend development experience. - Strong server-side JavaScript skills or comparable backend experience. - Commercial experience in AdTech and in supporting high-load production systems. - Knowledge of HTTP, web fundamentals, HTML, and tracking pixels. - Experience building scalable, highly available distributed systems. - Strong analytical, communication, and collaboration skills; upper-intermediate English or higher.

Nice to have - Experience with the VAST protocol. - The source mentions additional preferred skills, but the supplied description cuts off before listing them.

Benefits and work setup - Remote role open across specified locations in Europe and Latin America, including Albania, Poland, Romania, Ukraine, and Brazil.