Founding Full-Stack Engineer - High-Impact, Secure Infra

Praetori; Haarlem; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Equity

Market-rate salary

Job summary

Praetori in Haarlem, the Netherlands is seeking a full-stack engineer to design and ship core features that stay fast under pressure. You’ll own architecture, interfaces, data flows and performance, building scalable systems that keep critical operators productive.

Work with product, design, and forward-deployed engineers to deliver interfaces in TypeScript, React and Next.js, and backend services in Node.js. You’ll ensure the product remains legible and reliable as it grows.

Qualifications

• You built production systems that are fast and reliable.
• Strong TypeScript/React/Node.js experience and shipping production software.
• Excellent architectural judgement and a focus on UX outcomes.

Responsibilities

• Design and build core product features end to end, from data model and API to interface.
• Build interfaces in TypeScript, React and Next.js that stay clear and responsive under pressure.
• Design backend services and APIs in Node.js that are correct, observable and fast.
• Make architecture decisions that keep the system scalable and the codebase pleasant to build on.
• Treat performance as a feature; latency, responsiveness and reliability are part of the product.
• Bring product thinking; help decide what to build and why, not only how.
• Work with design to turn complex operational workflows into interfaces that feel inevitable.
• Harden field prototypes from forward deployed engineers into production-grade features.

Skills

Ownership

Product thinking

UX focus

English fluency

Tools

TypeScript

React

Next.js

Node.js

APIs

Performance profiling

Job description

Praetori in Haarlem, the Netherlands is seeking a full-stack engineer to design and ship core features that stay fast under pressure. You’ll own architecture, interfaces, data flows and performance, building scalable systems that keep critical operators productive.

Work with product, design, and forward-deployed engineers to deliver interfaces in TypeScript, React and Next.js, and backend services in Node.js. You’ll ensure the product remains legible and reliable as it grows.