Senior C++ Engineer - AI Agent Infrastructure

We are looking for a high-caliber C++ Systems Engineer with a strong passion for the future of AI agents. In this role, you won’t just be using AI tools; you will be building the high-performance foundations, runtimes, and core architecture that allow AI agents to perceive, reason, and act in real-time.

Your main tasks will include:

• Design and implement highly optimized, low-latency C++ components and runtimes for our AI agent framework.
• Memory-map, profile, and optimize resource utilization to ensure agents can process context, memory, and tool-calling rapidly.
• Integrate high-performance C++ backend modules with AI orchestration layers and local/cloud LLM inference engines.
• Translate conceptual AI agent workflows (multi-agent cooperation, long-term memory retrieval, planning loops) into blazing-fast, production-grade C++ code.

Do you have experience in Multithreading?, Do you have a Master’s degree?, * Completed bachelor’s or Master’s degree in Software Engineering, Computer Science, Embedded Systems, or a related technical field

• Fluency in English
• 4+ years of professional experience with Modern C++ (C++17/20/23). Strong grasp of multi-threading, memory management, and systems programming
• Must have a strong “affinity” for AI. You should understand concepts like embeddings, vector databases, LLM context windows, and how autonomous agents function

Pulled from the full job description

• Fuel card
• Pension plan, * You get a permanent contract
• You get a lease car with a fuel card
• Possibility of hybrid working
• Monthly net expense allowance
• 27 vacation days with the possibility to purchase 10 extra vacation days
• Pension scheme without personal contribution

What we offer

• Access to exciting projects in key sectors:Defence, Transport, Telecom, Finance
• A diverse client base: Collaborations with both large corporations and smaller players across the Netherlands
• A real career development plan: Continuous training, coaching, daily knowledge sharing
• An innovative and collaborative environment

ALTEN is a world leader in engineering and technology consulting, with over 57,700 employees in more than 30 countries. We support major companies in their innovation, R&D, and digital transformation projects across sectors such as automotive, aerospace, energy, finance, life sciences, and telecommunications.

Present in the Netherlands for over 20 years, ALTEN operates from its offices in Eindhoven, Capelle aan den IJssel, Apeldoorn, Groningen and Amstelveen. Today, with a team of 600+ consultants, ALTEN offers a wide range of expertise across Engineering and IT fields. From Automotive to Railway, and Defence to Aeronautics, our experts deploy their knowledge to provide innovative solutions in a dynamic and forward-thinking environment.