CareerPlan

Senior Backend Engineer( AdTech)

Warsaw, Masovian Voivodeship, plFull-time2026-10-29 → 2026-11-10

Core

Own the Vast Gateway service, a high-throughput edge proxy handling tens of millions of daily requests in the video advertising delivery flow.

Role type

Senior Backend Engineer (AdTech)

Builds

Scalable back-end solutions, custom features, and integrations for high-load environments.

Domain

AdTech, Video Advertising, Edge Computing

Required skills

Server-side JavaScript, HTTP protocols, distributed systems, debugging, monitoring, zero-downtime deployments, HTML, tracking pixels

Preferred skills

VAST protocol, Cloudflare Workers, VPAID creatives, video advertising technologies, performance optimization, edge-computing architectures

Responsibilities

Design and implement scalable back-end solutions, support client onboarding and integrations, monitor system performance, ensure service reliability and low-latency, participate in release planning and production support, improve observability, collaborate on platform architecture evolution

Seniority

Senior, hands-on IC