Senior Fullstack Engineer, Channel Expansion

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Senior Fullstack Engineer role at Smartly to develop and scale multi-channel advertising platform integrations. Work includes greenfield development and improving existing integrations with partners like Google, Reddit, and Spotify. Responsibilities include designing distributed, data-intensive systems, building automation for campaign data, evolving APIs, driving architectural decisions, collaborating across teams, and mentoring engineers. Required skills: Node.js, TypeScript, React, distributed systems, event-driven architectures, scalable system design, and ability to work in a hybrid setup from Helsinki office (3 days/week). Benefits include healthcare, equity, flexible hybrid work, career development, and inclusive global culture.