Full Stack Developer (Collectmaxx)

Confidential

Rotterdam, Zuid-Holland, Netherlands permanent

Posted: February 10, 2026

Required Skills

Job Description

Only applicants already living in The Netherlands.

No recruiters

About Us

Collectmaxx is a Dutch company on a mission: help businesses get paid faster, at lower cost. We're a small, driven team building a fully automated, white-label dunning platform that combines 25+ years of collections expertise with modern AI technology.

We deliver increased recovery rates, maximized returns, and better financial health for our clients across Western Europe — with a strong focus on the Benelux, Austria, and Switzerland — all while maintaining the highest standards of integrity and trust.

In 2026, we're upgrading our proven enterprise platform into a PaaS setup, enabling us to serve enterprise clients with custom implementations and SMBs through a self-serve model — all on the same infrastructure. It's an exciting time to join.

The Role

We're looking for a backend-leaning Full Stack Developer to help build and evolve our communication platform. We enable our clients to reach their customers through Voice, SMS, and email — and we're continuously expanding to new channels and adding more flexibility in follow-up actions.

You'll work with a modern stack centered around PHP (Symfony), JavaScript, and MySQL, using GitHub/Bitbucket for version control. Experience with AWS (S3/SQS/EC2) and GraphQL is a strong plus, and familiarity with MongoDB is a bonus.

There's no shortage of challenges here — and plenty of room to make a real impact.

What You'll Do

As a Full Stack Developer at Collectmaxx, you:

• Work on integrating new solutions — built or bought — into the Collectmaxx platform

• Operate in a cross-functional scrum team where you're responsible for writing clean code with strong business awareness

• Onboard and integrate customers onto the Collectmaxx platform and its services

• Design generic, reusable solutions that can accommodate multiple customers

• Continuously think about how our solutions can be improved and expanded

• Are customer-centric, but also critical when evaluating customer needs

• Proactively pick up new opportunities to improve what we offer

📍 You'll be based at our office in Rotterdam (max. 60 minutes travel time from home).

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