Fullstack Engineer (C++ & React)

Are you a Full Stack Engineer who thrives on building robust and scalable backend systems and seeing them come to life in a clean, modern frontend? Do you like improving complex architectures and prefer working on a product (with all its demands for durable designs and implementations) rather than working on projects? Then this role at AIMMS might be exactly what you’re looking for. 

Why You’ll Love Working With Us 

AIMMS serves customers around the globe with technology that helps them make better decisions faster and reduce waste.

As a Full Stack Engineer at AIMMS, you’ll play a key role in evolving our cloud platform. You’ll help further convert a legacy monolithic backend into microservices built using modern C++ standards and libraries, while also contributing to a React and TypeScript–based frontend portal used by customers worldwide for their mission-critical applications. 

You’ll join a small, highly skilled cloud team where your work has real impact and your technical contributions matter. There’s room to grow, learn, and help build new systems together with your teammates—not just maintain existing ones. 

What You’ll Find Here

• Real technical impact – Build new services that form the backbone of our cloud platform.

• True full‑stack work – Backend‑focused, with meaningful frontend contributions.

• Modern tech stack – Modern C++, microservices, React, TypeScript, Kubernetes, and Azure.

• Ownership & trust – You’ll be trusted to deliver end-to-end solutions in close alignment with your team. 

• Collaborative culture – A friendly team that values openness, feedback, and quality.

What Makes This Role Meaningful? 

This role is ideal if you enjoy working on complex technical challenges while staying connected to real user value. You’ll contribute to the transition from a legacy monolithic backend toward a modern, scalable microservices architecture, helping shape the future of our product. Your work will be used by leading global organizations such as ASML, ABN AMRO, and Shell, helping them make smarter, faster, and more sustainable decisions through optimization technology. 

How You’ll Make an Impact 

Our Cloud team is responsible for the reliability, performance, and scalability of our SaaS cloud platform. To that end you will: 

• Build & evolve backend services – Together with your teammates, build and evolve modern C++ microservices and APIs. 

• Contribute to the frontend – Develop features in our React & TypeScript portal. 

• Understand and evolve existing systems – Read, understand, and help decompose existing backend systems in order to build improved replacements. 

• Work across teams – Collaborate with other engineering teams and stakeholders such as user support and operations when needed. 

• Own your contributions – Take responsibility for your work while aligning with team decisions, product direction, architecture, and long-term vision. 

What Will Help You Thrive and Be Successful 

You’ll be a great fit if you bring:

• Relevant engineering experience – Able to contribute independently while working closely with the team and broader product context. 

• Strong C++ skills – Experience with modern C++ standards and libraries in production environments. 

• Systems mindset – Understanding of how frontend, HTTP, networking, authentication/service principals, and backend services fit together. 

• Microservices experience – Solid understanding of distributed systems and REST-based APIs. 

• Linux and Cloud Affinity – Experience working in Linux environments; cloud and Kubernetes experience is a plus. 

• Clear communication – Structured, transparent, and collaborative in how you work. 

• Quality focus– You care deeply about clean code, reliability, and sustainable solutions. 

• AI Literacy: experience (at least interest in) working using GenAI to maximize efficiency. 

Life at AIMMS: The Good Stuff 

You’ll join a company where deep technology meets real-world impact—and where people genuinely care about what they build and how they work together. 

Impact & environment 

• A role with high technical ownership and visibility. 

• A stable yet ambitious product-led SaaS company. 

• A down-to-earth, international team with short lines and high trust. 

• Hybrid working from our Haarlem office (at least one day per week). 

Reward & benefits 

• 💰 Competitive salary 

• 🧓 Fully paid pension. 

• 🌍 Hybrid work 

• 🌴 30 vacation days to properly recharge. 

• 🧠 A culture that prioritizes continuous learning and skill development through coaching and training.

• ✈️ ‘Short-term remote friendly’ the freedom to occasionally work from abroad, in alignment with the team. 

If you're ready to make a significant impact, apply now – we can't wait to meet you! Prefer more information first? Feel free to reach out to Reza Jahanbakshi - Hiring Manager vial Linkedin or email: Reza.Jahanbakhshi@aimms.com

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AIMMS: Who We Are (and why it matters) 

It all started in 1989, when we saw a huge untapped potential for mathematical optimization. Since then, AIMMS has touched many aspects of people’s daily lives—from the electricity delivered to our homes and the distribution of vaccines to emission-reduction policymaking. Today, as a product-led SaaS company, we support industries worldwide—from logistics to sustainability—enabling smarter, faster, and greener choices. 

We’re a diverse, collaborative, and curious team of over 20 nationalities, with offices in the Netherlands (Haarlem HQ), the US, and Singapore. Working in a self-organized, hybrid way across the globe, we’re guided by four core values - Integrity, Care, Open, and Ambition - which help us give honest feedback, care deeply for our stakeholders, collaborate across teams, and continuously grow our impact. 

How AIMMS made impact:  
Our platform was used to build applications that helps state utilities buy electricity from hundreds of power stations, ensuring companies and consumers always have power. We optimize daily and real-time purchasing decisions to minimize costs, maintain network stability, and reliably meet demand.