Senior PHP + React Fullstack Developer

40 hours
Meppel (Near Zwolle)

At GMU, we develop groundbreaking, scalable SaaS solutions that make a real difference for eCommerce entrepreneurs. Our mission? To help webshops worldwide reliably and predictably optimize their profitability by fully automating Google Shopping, data feeds, and campaigns through our own proprietary platform and app.

What you’ll be doing

At GMU, you’ll work on two core pillars of our technology:

Business Analytics App

Free revolutionary business intelligence for every online entrepreneur.
  • Easily generated business analyses and clear insights for profitable growth
  • Continuous clarity on your ROI progress, empowering you to make informed decisions with confidence
  • Instantly monitor your Return on Ad Spend (ROAS), revenue, investments, visitor traffic, and conversion rates
  • Access comprehensive insights anytime, anywhere, to stay ahead of the competition
  • In-depth customer analysis: track both new and existing customers with detailed metrics

Martech Automation Software – Help build the engine behind 900% ROI

To enable these exceptional results, we are developing our own Marketing Technology Software (Martech Automation).

A Decision Hierarchy (Decision Engine):
Dynamic decision-making rules are applied here. They automatically determine where and how budgets are allocated for maximum growth.

Feed Automation Systems:
Product feeds, ad copy, and targeting are automatically optimized based on real-time data.

GMU = Best Place to Work 🎉

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

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


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
  • Other: Webhooks, REST APIs, Cron jobs, AI APIs

Personal growth = GMU

🏆 Why you’ll love 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 client ROI of 900% (happy clients!)
❤️ Our clients rate us 9.6/10 and love working with us
🚀 21 years of perfecting our technology, and we’re just getting started!

💻 Work with the best hardware: you’ll get the fastest laptop and a 49” curved cockpit screen, allowing you to code across 5 screens simultaneously. Want to work with an absolutely epic setup? You can with us!

📚 Opportunities for training, new challenges, and career growth into leadership positions

💰 An exceptional, competitive salary matched to your experience

🎯 Ready for the ultimate challenge?


Apply Now  and show us why you are the high performer we’re looking for! 🚀

💡 Our Culture? We don’t call ourselves “staff”, we are 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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