Senior Platform Engineer (Agents)

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 own the reliability, security, and scalability of Sana’s platform while leveling up developer velocity. This is the place for engineers who thrive on moving between cloud infrastructure, deployment, and tooling to unblock everyone else. You’ll work on everything from multi-tenant scale-out to developer experience, ensuring our platform is robust, secure, and a joy to build on.

In This Role, You Will

• Drive reliability, security, and scalability across the platform
• Architect and implement multi-tenant scale-out (10–100x) and observability solutions
• Lead incident response, performance profiling, and cost control initiatives
• Build and maintain CI/CD pipelines, test infrastructure, and environment provisioning
• Work with engineers across the stack to remove friction and accelerate delivery

What Success Looks Like

• The platform scales seamlessly as usage grows 10-100x, with robust observability and incident response
• Security and compliance are built-in, not bolted on
• Developer velocity is tangibly higher—teams ship faster, with fewer blockers
• CI/CD, test infra, and development environments are reliable, discoverable, and loved by engineers
• Cost controls and performance budgets are visible and actionable
• You are a go-to partner for infra, deployment, and tooling challenges: unblocking others and raising the bar for engineering excellence

Our Tech Stack

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

Backend: TypeScript, Node.js

• Frontend: TypeScript, React, Tailwind

Databases: Postgres, Redis

Cloud infra: GCP/Kubernetes/Terraform

What We Offer

• 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)