Backend Engineer (Agents)
SanaSweden20 hours ago
Full-timeEngineering, Information Technology
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About Sana
At Sana, we're on a mission to bring superintelligence to work—a seamless, beautiful way to access all your company’s apps, knowledge, and data. We are obsessed with making AI agents do real work to empower our users to process and act on knowledge at an unprecedented scale.
We’re a talent-dense team of engineers and designers in Stockholm, united by a passion for building great products with deep technical excellence. Our backgrounds span AI research at Google, distributed systems at Spotify, product design and AI infrastructure at Apple, competitive programming, and scaling fast-growing startups. At Sana, everyone is an owner. We cut out processes, maximize impact, and value rapid prototyping and iteration.
Our AI tools already help over a million people learn and work better across hundreds of leading enterprises. But we’re just getting started—there’s so much more to build. Join us to tackle some of the most challenging and meaningful problems of our generation.
About The Role
You'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 will
We build on a simple modern stack optimized for both humans and AI:
At Sana, we're on a mission to bring superintelligence to work—a seamless, beautiful way to access all your company’s apps, knowledge, and data. We are obsessed with making AI agents do real work to empower our users to process and act on knowledge at an unprecedented scale.
We’re a talent-dense team of engineers and designers in Stockholm, united by a passion for building great products with deep technical excellence. Our backgrounds span AI research at Google, distributed systems at Spotify, product design and AI infrastructure at Apple, competitive programming, and scaling fast-growing startups. At Sana, everyone is an owner. We cut out processes, maximize impact, and value rapid prototyping and iteration.
Our AI tools already help over a million people learn and work better across hundreds of leading enterprises. But we’re just getting started—there’s so much more to build. Join us to tackle some of the most challenging and meaningful problems of our generation.
About The Role
You'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 will
- Design and decompose services and APIs for scale and clarity
- Build eventing and queue systems for reliable, high-throughput data flows
- Lead schema evolution, migrations, query/index optimization and caching strategies
- Define and enforce consistency models and multi-region readiness
- Optimize for performance budgets and privacy/tenant isolation
- Work hands-on with TypeScript/Node, Postgres, and distributed systems primitives
- Core services are reliable, scalable, and easy to evolve
- Risks are identified and solved before issues become critical
- APIs are clear, well-documented, and power seamless product experiences
- Data boundaries are robust—privacy and tenant isolation are never compromised
- Performance budgets are met, even under heavy load
- You are a trusted partner for distributed systems design and implementation
We build on a simple modern stack optimized for both humans and AI:
- Backend: TypeScript, Node.js
- Frontend: TypeScript, React, Tailwind
- Databases: Postgres, Redis
- Cloud infra: GCP/Kubernetes/Terraform
- Help shape AI's future alongside brilliant minds from Notion, Dropbox, Slack, Databricks, Google, McKinsey, 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 collaborate with customers globally
- Regular team gatherings and events (recently in Italy and South Africa)
Key Skills
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