Founding Engineer (Node.js / Python) - Permanent

Job description

Salary: 90 000€

We are working with an early-stage European tech startup building a high-impact B2B software product with strong technical ambitions and a long-term vision.

The company is now looking for its Founding Engineer, someone who wants to build the technical foundations from scratch, shape engineering culture, and grow into a CTO role over time.

This is a unique opportunity for an experienced backend engineer who wants to move from execution to ownership.

Responsibilities :

• Design and build the backend architecture from the ground up

• Develop core product features in Node.js or Python

• Define engineering standards, tooling, and infrastructure

• Set up deployment pipelines and production environments

• Make long-term architectural decisions

• Participate in product and technical strategy

• Help build the future engineering team

Tech direction (Exact stack still flexible — you will help define it ) :

• Backend: Node.js or Python

• API-first architecture

• Cloud infrastructure

• Modern development practices

• Scalable SaaS architecture

Desired profile

• 5–10+ years of backend engineering experience

• Strong experience with Node.js and/or Python

• Experience building products from scratch or early-stage systems

• Comfortable making architecture decisions independently

• Interest in startup environments

• The role is fully English-speaking, so fluency in English is required

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