Senior Fullstack developer (AdTech & Data Platform)

emagine is looking for a Senior Full Stack Engineer to join a team focused on building scalable systems for tracking, attribution, and data-driven marketing. Start: ASAP or within 1 month Duration: 12 months Location: Stockholm, 2-3 days/week at the office About the role AdTech Platform Ownership • Own and manage paid media AdTech platforms, including an MMP such as AppsFlyer • Integrate, optimize, and evaluate new vendors and capabilities Measurement & Attribution • Ensure reliable event tracking, attribution, and data quality across platforms • Collaborate with consent/privacy teams to meet regulatory requirements First-Party Data & Activation • Enable scalable audience creation and activation for acquisition and retargeting • Improve automation and experimentation velocity Customer Link Infrastructure • Build and maintain systems for link generation, redirection, and attribution • Support flows across paid media, CRM channels, referrals, and web-to-app journeys Reliability & Operations • Ensure high availability, monitoring, and observability of tracking systems • Maintain and troubleshoot AdTech-related services and pipelines Your profile • Full Stack JavaScript (Node.js, TypeScript) in scalable systems • Data pipelines and orchestration (e.g. Apache Airflow) • Distributed systems, APIs, cloud infrastructure • Experience with data flows, tracking, or integrations • AdTech/MarTech experience is a plus