AI-Driven Software Engineer: Build QuattOS & AI

Quatt; Amsterdam; Hybrid; EUR 85,000 - 115,000; Full time

Benefits offered by this job

Hybrid work model

Pension plan (ASR)

SARs (Stock Appreciation Rights)

Holiday entitlement

Free vegan/vegetarian lunch

Travel allowance

International team

Referral bonus

Job summary

Quatt is building the tech behind the energy transition and seeks an experienced, hands-on engineer to own and evolve QuattOS in production. You’ll work in a small team, write code with AI agents, and ensure scalable, secure infrastructure while delivering value to homeowners and installers.

With 3+ years in production software and a strong AI-native approach, you’ll shape data models, integrations, and cost-aware decisions.

Qualifications

• Degree in Computer Science or equivalent depth you can demonstrate.
• 3+ years of experience building production software.
• An AI-native way of working: you use Claude Code, Cursor or similar tools every day.
• The judgment to recognise AI mistakes and the technical depth to fix them.
• Understanding of how architecture and infrastructure decisions affect data, security, cost and scale.
• A hands-on mindset: you want to design, build and improve software every day.

Responsibilities

• Build and evolve QuattOS: develop the services and tools behind our sales-to-installation process, covering planning, work preparation, stock and payments.
• Design for growth: think through data models and services before building them, so they scale with volume and stay flexible as the business changes.
• Connect our platforms: build reliable integrations using webhooks, queues and background workers, with careful handling of retries and idempotency.
• Build with AI every day: direct AI agents to write code, tests and reviews. You’ll review their output as carefully as if you wrote it yourself.
• Own what you ship: release to production every day, write thorough tests, monitor what you build and debug production issues.
• Shape our infrastructure: work with the team to make decisions about AWS, infrastructure as code, security and cost.
• Stay close to your users: talk directly with sales, work preparation, installers and homeowners to understand their needs and improve what they use.
• Put AI to work: develop agents and features that take on parts of our business processes.

Skills

Production software

AI-native tooling

Hands-on mindset

System architecture

Education

Computer Science degree

Tools

Claude Code

Cursor

LLM tooling

Job description

Quatt is building the tech behind the energy transition and seeks an experienced, hands-on engineer to own and evolve QuattOS in production. You’ll work in a small team, write code with AI agents, and ensure scalable, secure infrastructure while delivering value to homeowners and installers.

With 3+ years in production software and a strong AI-native approach, you’ll shape data models, integrations, and cost-aware decisions.