Principal Engineer, AI & Automation
SannaNorway16 hours ago
Full-timeRemote FriendlyEngineering
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Who we are looking for
We're looking for a pragmatic builder who knows when AI is the answer, and more importantly, when it isn't.
Build the engineering and AI foundation of a global accounting platform
Sanna is building a new kind of accounting firm - one designed for a world where AI can automate the manual work that has defined the industry for decades.
Our goal is simple: challenge how accounting works globally by rebuilding it from the core. We combine AI, software, and human expertise to create systems that are reliable, scalable, and trusted. We aren’t just building an AI wrapper; we are replacing manual labor with production systems that accountants and businesses can rely on.
We are now hiring a Principal Engineer to work at the core of the product, shaping the foundation that automates accounting and operational workflows.
About The Job And Why It Matters
Much of accounting today is still manual or semi-automated. You’ll help decide when AI adds value, when deterministic rules are better, and when human-in-the-loop workflows are necessary.
The choices you make here will directly shape the accuracy, reliability, and scalability of our platform. This is a hands-on leadership role: you’ll tackle complex problems end-to-end (from frontend interfaces to backend systems) and set the technical foundation for the future of accounting at Sanna.
While you don't need to tick every box, this is the stack you'll be working with. Depth in some areas and the ability to learn quickly matter most.
Frontend - Svelte 5 & SvelteKit, Tailwind CSS
Backend & language - TypeScript, Effect.ts
Database - PostgreSQL
Testing & DX - Storybook, Playwright, Graphite
Infrastructure & observability - Vercel, PostHog, Grafana, Workflow
We're looking for a pragmatic builder who knows when AI is the answer, and more importantly, when it isn't.
Build the engineering and AI foundation of a global accounting platform
Sanna is building a new kind of accounting firm - one designed for a world where AI can automate the manual work that has defined the industry for decades.
Our goal is simple: challenge how accounting works globally by rebuilding it from the core. We combine AI, software, and human expertise to create systems that are reliable, scalable, and trusted. We aren’t just building an AI wrapper; we are replacing manual labor with production systems that accountants and businesses can rely on.
We are now hiring a Principal Engineer to work at the core of the product, shaping the foundation that automates accounting and operational workflows.
About The Job And Why It Matters
Much of accounting today is still manual or semi-automated. You’ll help decide when AI adds value, when deterministic rules are better, and when human-in-the-loop workflows are necessary.
The choices you make here will directly shape the accuracy, reliability, and scalability of our platform. This is a hands-on leadership role: you’ll tackle complex problems end-to-end (from frontend interfaces to backend systems) and set the technical foundation for the future of accounting at Sanna.
- Build and evolve core systems powering accounting automation, including user-facing interfaces
- Design AI-powered, rule-based, and hybrid workflows to replace manual processes
- Balance accuracy, reliability, performance, and cost in production AI systems
- Improve platform foundations: data flows, abstractions, observability, testing, and reliability
- Collaborate closely with product managers, designers, and accountants to turn workflows into scalable systems
- Own complex problems from design through production and iteration
- You don’t need to tick every box - depth in some areas, ownership, and ability to learn quickly matter more than years or titles.
- Experienced principal engineer or tech lead building production SaaS platforms
- Deep expertise in TypeScript (bonus: Effect.ts) and PostgreSQL, comfortable across the full stack
- Experience with production systems involving LLMs, document processing, or AI-driven workflows
- Pragmatic judgment: when to use AI vs deterministic rules vs human review
- Strong engineering judgment in high-accuracy, high-trust domains where mistakes matter
- Clear communicator who can reason through ambiguity and make sound trade-offs
- Curious and eager to question assumptions and continuously improve
- Work on greenfield systems with real production impact
- Directly shape how AI is applied in a high-trust, regulated domain
- Influence product direction and long-term architecture
- High autonomy and ownership over technical decisions
- Solve intellectually hard problems, not just technically complex ones
While you don't need to tick every box, this is the stack you'll be working with. Depth in some areas and the ability to learn quickly matter most.
Frontend - Svelte 5 & SvelteKit, Tailwind CSS
Backend & language - TypeScript, Effect.ts
Database - PostgreSQL
Testing & DX - Storybook, Playwright, Graphite
Infrastructure & observability - Vercel, PostHog, Grafana, Workflow
Key Skills
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