What you will do

At GMU, you will work on two pillars of our technology:

Business Analytics App

Free, revolutionary business intelligence for every online entrepreneur.

Easily generated business analytics and clear insights for profitable growth
Continuous clarity about your ROI progress, so you can make informed decisions with confidence
Monitor directly your Return on Ad Spend (ROAS)., sales, investments, visitor traffic and conversion rates
Anytime, anywhere access To comprehensive insights so you stay one step ahead of your competitors
In-depth customer analysis: track both new and existing customers with detailed statistics

Martech Automation Software | Help build the system behind 900% ROI

To make these exceptional results possible, we develop our own Marketing Technology Software (Martech Automation).

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A Decision Hierarchy (Decision Engine):

Dynamic decision rules are applied here. They automatically determine Where and how budgets are allocated for maximum growth.

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Feed Automation Systems:

Product feeds, ad copy and targeting will be automatically optimized based on real-time data.

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About You

At least 8 years of professional experience with PHP (preferably Laravel) and React (or other modern JS frameworks)
You have worked on complex, modular systems, you think in patterns and scalable architecture, not in temporary solutions.
You will help shape the backbone of GMU's proprietary software and client performance tools.
You have experience designing and developing scalable applications using PHP Laravel + React, built on a microservices architecture.
You design fast and intuitive user interfaces for internal teams and clients, speed is key.
You are familiar with event-driven architecture, CI/CD pipelines, and robust cloud environments (AWS / GCP).
You collaborate intensively with our AI, R&D, and marketing performance teams.
You understand the balance between developer experience and business value.
You take full ownership of your projects, from concept to beta release, refactor, and ongoing maintenance.

Bonus Points For:

Experience with Google APIs, server-side tracking, or e-commerce platforms
Affinity with performance marketing or building tools for marketing teams
Knowledge of event-driven systems, feature flags, and A/B testing at the code level

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Extra Bonus Points For:

Experience integrating AI into your development workflows
Experience boosting your own development speed through AI
Familiarity with Large Language Models (LLMs).
Experience with Machine Learning technologies

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The Tech Stack You'll Work With

Backend: PHP (Laravel), Node.js (occasionally)
Frontend: React
Databases & Caching: MySQL, Redis, Firebase, Supabase
DevOps & Deployment: GitHub, Docker, CI/CD, Feature Flags
Cloud: Google Cloud Platform, AWS, Azure
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Other: Webhooks, REST APIs, Cron jobs, AI APIs

🏆 Why you will enjoy working with us

💎 We work exclusively with senior developers and marketers

⬆️ Top 10 FD Gazelle: One of the fastest growing companies in the Netherlands

💰 An average customer ROI of 900% (satisfied customers!)

❤️ Our customers rate us with a 9.6/10 and love working with us

🚀 21 years of experience in perfecting our technology - And we have only just begun!

💻 Work with the best hardware: you get the fastest laptop and a 49” curved cockpit screen, allowing you to code across 5 screens simultaneously.
Want to work with an epic setup? It's possible with us!

📚 Opportunities for training, new challenges and advancement to leadership positions

💸 An exceptionally competitive salary that fits your experience

🎯 Ready for the ultimate challenge?

👉 Click on Apply Now and shows why You are the high performer we are looking for! 🚀

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💡 Our culture? We don't call ourselves “staff,” we call ourselves a family.

🍽️ Luxury team dinners every 12 weeks

🎮 Game Night every Tuesday

🚀 Quarterly outings and team activities

🏡 Hybrid working? Working from home occasionally is fine, but team bonding and knowledge sharing are key; that's why we're usually together at our office in Meppel.

✈️ Freedom to temporarily work from abroad (for example, workcation)

🌎 International collaboration with e-commerce entrepreneurs and tech partners

🧠 20% R&D time, continuous innovation and diving into the latest technologies

🤖 AI as a growth accelerator: We leverage AI to learn faster and develop proofs of concept even more quickly.

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Senior PHP + React Fullstack Developer