About SanaSana is an AI lab building superintelligence for work. We believe organizations can accomplish their missions faster when teams can effortlessly access knowledge, automate repetitive work, and learn anything with the help of agentic AI. As part of Workday, we are committed to building AI that augments people - not replaces them.We bring this mission to life through two products. Sana Agents provide a seamless way to access all your company’s apps, knowledge, and data, enabling AI agents to do real work so teams can process and act on information at unprecedented scale. Sana Learn is an AI-powered learning hub that combines the simplicity of a modern learning platform with intelligent features like an AI tutor, automated content generation, and interactive apps, making knowledge not just accessible but actionable.We’re a talent-dense, product-obsessed team of engineers and designers from companies like Google, Spotify, Apple, and Databricks, united by deep technical excellence and rapid iteration. Our tools already help over a million people learn and work better across hundreds of leading enterprises - and we’re just getting started.About the roleYou'll build and evolve the core services that power agents and product features, with a focus on enterprise-scale workloads, performance optimization, and long-term architectural sustainability. You drive architecture and systems design to ensure our platform can support high volumes of data, entities, and demanding enterprise clients.In this role, you willDesign and decompose services and APIs for scale and clarityBuild eventing and queue systems for reliable, high-throughput data flowsLead schema evolution, migrations, query/index optimization and caching strategiesDefine and enforce consistency models and multi-region readinessOptimize for performance budgets and privacy/tenant isolationWork hands-on with TypeScript/Node, Postgres, and distributed systems primitives.What success looks likeCore services are reliable, scalable, and easy to evolveRisks are identified and solved before issues become criticalAPIs are clear, well-documented, and power seamless product experiencesData boundaries are robust - privacy and tenant isolation are never compromisedPerformance budgets are met, even under heavy loadYou are a trusted partner for distributed systems design and implementationOur tech stackWe build on a simple modern stack optimized for both humans and AI.Backend: TypeScript, Kotlin, Node.jsFrontend: TypeScript, React, TailwindDatabases: Postgres, RedisCloud infra: GCP/Kubernetes/TerraformWhat we offerHelp shape AI's future alongside brilliant minds from Google, Apple, Spotify, Notion, Slack, Databricks, and BCG.Competitive salary complemented with a transparent and highly competitive options program.Swift professional growth in an evolving environment, supported by a culture of continuous feedback and mentorship from senior leaders.Work with talented teammates across 5+ countries, and global customers, from our beautiful office in Stockholm.Regular team gatherings and events (recently in Italy and South Africa)