Founding Engineer

1zu100 GmbH; München; On-site; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

Equity stake

Real projects that ship

Founders codebase collaboration

Wellpass & coffee

Job summary

1zu100 GmbH in Munich is building an AI-powered planning platform for large residential projects. We seek a founding engineer to own end-to-end AI tooling, data context layer, and evaluation harness, shipping features that scale with the product.

You will work with the founders, turn messy planning data into actionable context, integrate BIM/IFC workflows, and push the product from prototype to production on real projects.

Qualifications

• Hands-on experience with harness engineering: agents, tool orchestration, evals.
• High agency and an entrepreneurial drive. Ideally you have founded before or want to.
• Experience in a high-growth environment (startup, scale-up or similar).

Responsibilities

• Harness engineering: build and run the layer around the model end to end: memory, tool orchestration, verification, drawing and document generation.
• Data and context: turn messy planning data (CAD/BIM models, PDFs, site surveys, building codes) into the right context at every phase, traceable to source.
• Evals and benchmarks: build the eval harness (datasets, regression tests) and measure agents against architectural rule sets.
• BIM and IFC automation: connect to architect's toolchain (Revit, ArchiCAD, IFC) to drive automated modeling and clean interoperability.

Skills

Harness engineering

Agent orchestration

Eval harness

BIM/IFC automation

Tools

Revit

ArchiCAD

IFC

Job description

Build the future of architecture

1zu100 is automating construction planning. Together with exceptional architecture firms, we plan multi‑unit residential buildings and deliver completed, permitted plans as a service.

TL;DR

We are looking for one cracked founding engineer to build the AI that plans large residential buildings end to end: the agent harness, the data and context layer, and the evals. You work in a small, high‑agency team on real projects that ship right away.

The core of the role

• Harness engineering: You build and run the layer around the model end to end: memory, tool orchestration, verification, drawing and document generation, so the output stays consistent and code‑compliant at scale.

• Data and context: You turn messy planning data (CAD/BIM models, PDFs, site surveys, building codes) into the right context at every phase, always traceable back to its source.

• Evals and benchmarks: You build the eval harness (datasets, regression tests) and measure our agents against the architectural rule sets and judgment calls.

• BIM and IFC automation: You connect to the architect's toolchain (Revit, ArchiCAD, IFC) to drive automated modeling and clean interoperability.

What we're looking for

• Hands‑on experience with harness engineering: agents, tool orchestration, evals.

• High agency and an entrepreneurial drive. Ideally you have founded before or want to. You find the work yourself and move fast.

• Experience in a high‑growth environment (startup, scale‑up or similar).

• Nice to have: German, Revit, IFC or Grasshopper, a non‑linear CV and experiments with reinforcement learning (MCTS, GRPO, RLHF) or diffusion models (discrete and continuous).

What we offer

• A fast‑paced environment at a fast‑growing startup, with a steep learning curve

• Competitive salary and a stake in the company, with first‑hire upside

• Real projects that ship right away

• You build right alongside the founders, in the same codebase on the same hard problems

• Wellpass and unlimited coffee from a professional barista

We’re a small team with an extremely high bar. If you want to work deeply on hard problems and change the way construction planning is done, you’re the one we need.