Founding Engineer (Typescript & )

The role:

A pre-seed Warsaw-based startup is building the personal AI category: an always-on agent that handles lifes mundane tasks for real users. Backed by Inovo led by a founder with a prior exit and running as a tight 3-person team. You would be the next Founding Engineer building the core product and the infrastructure it runs on from the ground up ahead of a 2026 launch.

This is a ground-floor seat. You shape the agentic systems the architecture and the user experience - not maintain someone elses decisions.

What youll do:

- Build the core product end to end: agentic AI features backend infrastructure and user-facing surfaces.
- Design and ship production AI agents - reliability evaluation and cost control are your problem not an afterthought.
- Own observability for agentic workflows: define the metrics that prove quality and catch regressions before users do.
- Make architecture and system-design calls with minimal guidance and live with the outcomes.
- Ship fast in production with real users - iterate on what breaks.

Core stack:

TypeScript SwiftUI AI agents and LLMs Vercel GKE Postgres.

What we need (must-haves):

- Shipped AI agents to a real production environment at scale - not prototypes or academic work.
- Shipped a B2C product built around AI agents to a meaningful user base.
- Concrete battle-tested strategies for agent observability evaluation and cost management - you can walk through specifics.
- Experience as an early engineer at a high-growth fast-moving startup.
- Fluent in Polish (this role is on-site in Warsaw and the working language requires it).
- Based in Warsaw or able to relocate immediately. Existing work authorization for Poland;

Bonus:

- Previous experience founding a tech company (outcome doesnt matter - the scars do).
- A mix of top-tier tech (e.g. Microsoft-caliber) and early-stage or founder experience.
- International background - studied or worked abroad.

The reality:

Culture is Silicon Valley intensity Warsaw timezone. This is a high-intensity extreme-ownership environment for builders who see personal AI as the most important thing they could be working on. It is demanding and fast and it is not the fit if you want a low-stakes purely 9-to-5 setup. We hold to Polish and EU working-time and rest rules; the intensity is in the ambition and pace not in ignoring the law.


How we use AI in this process (transparency):

We use automated and AI-assisted tools to help source screen and organize applications. These tools support our decisions - they do not make them. A human reviews every candidate and makes all hiring decisions with meaningful oversight at each stage. You have the right to request information about how AI was used in your assessment to ask for human review of any automated step and to have your data handled under GDPR. If youd like details on the tools used or a manual review just ask.