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Product Engineer

Barcelona💼 Full-time🗓 2026-09-11 → 2026-09-25

Core

Own the connection between the real-time ad exchange and the customer-facing platform, ensuring consistency in campaigns, budgets, and targeting across both systems.

Role type

Senior Product Engineer (Full-stack)

Builds

The omnichannel advertising platform (dashboard) and the underlying hybrid ad exchange infrastructure.

Domain

Advertising technology (AdTech), Real-time bidding, High-performance systems

Deliverable

production ML models | product features | infrastructure

Required skills

TypeScript, React, Backend development, System design, Product ownership, Data analysis, Stakeholder management, Code review

Preferred skills

Experience with low-latency/high-throughput systems, Self-service product design, Analytics tools (PostHog), Cross-cultural team experience

Technologies

Rust, GPU-based decisioning, TypeScript, React, PostHog

Responsibilities

Own the seam between the exchange and platform; Lead delivery and sequence work; Build frontend and backend features; Set technical direction and standards; Decide scope and defend decisions; Talk to advertisers to understand needs; Own metrics and drive improvements; Mentor engineers through code reviews.

Seniority

Senior, hands-on IC with end-to-end ownership

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